ff855fe1fb
Before this change operations.SetDirModTime could return the error "optional feature not implemented" when attempting to set modification times on crypted sftp backends. This was because crypt wraps the directories using fs.DirWrapper but these return fs.ErrorNotImplemented for the SetModTime method. The fix is to recognise that error and fall back to using the DirSetModTime method on the backend which does work. Fixes #7673
2655 lines
80 KiB
Go
2655 lines
80 KiB
Go
// Package operations does generic operations on filesystems and objects
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package operations
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import (
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"bytes"
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"context"
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"encoding/base64"
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"encoding/csv"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"mime"
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"net/http"
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"os"
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"path"
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"path/filepath"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/accounting"
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"github.com/rclone/rclone/fs/cache"
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"github.com/rclone/rclone/fs/config"
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"github.com/rclone/rclone/fs/filter"
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"github.com/rclone/rclone/fs/fserrors"
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"github.com/rclone/rclone/fs/fshttp"
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"github.com/rclone/rclone/fs/hash"
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"github.com/rclone/rclone/fs/object"
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"github.com/rclone/rclone/fs/walk"
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"github.com/rclone/rclone/lib/atexit"
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"github.com/rclone/rclone/lib/errcount"
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"github.com/rclone/rclone/lib/random"
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"github.com/rclone/rclone/lib/readers"
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"golang.org/x/sync/errgroup"
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"golang.org/x/text/unicode/norm"
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)
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// CheckHashes checks the two files to see if they have common
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// known hash types and compares them
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//
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// Returns.
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//
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// equal - which is equality of the hashes
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//
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// hash - the HashType. This is HashNone if either of the hashes were
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// unset or a compatible hash couldn't be found.
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//
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// err - may return an error which will already have been logged
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//
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// If an error is returned it will return equal as false
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func CheckHashes(ctx context.Context, src fs.ObjectInfo, dst fs.Object) (equal bool, ht hash.Type, err error) {
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common := src.Fs().Hashes().Overlap(dst.Fs().Hashes())
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// fs.Debugf(nil, "Shared hashes: %v", common)
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if common.Count() == 0 {
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return true, hash.None, nil
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}
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equal, ht, _, _, err = checkHashes(ctx, src, dst, common.GetOne())
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return equal, ht, err
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}
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var errNoHash = errors.New("no hash available")
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// checkHashes does the work of CheckHashes but takes a hash.Type and
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// returns the effective hash type used.
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func checkHashes(ctx context.Context, src fs.ObjectInfo, dst fs.Object, ht hash.Type) (equal bool, htOut hash.Type, srcHash, dstHash string, err error) {
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// Calculate hashes in parallel
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g, ctx := errgroup.WithContext(ctx)
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var srcErr, dstErr error
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g.Go(func() (err error) {
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srcHash, srcErr = src.Hash(ctx, ht)
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if srcErr != nil {
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return srcErr
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}
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if srcHash == "" {
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fs.Debugf(src, "Src hash empty - aborting Dst hash check")
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return errNoHash
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}
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return nil
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})
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g.Go(func() (err error) {
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dstHash, dstErr = dst.Hash(ctx, ht)
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if dstErr != nil {
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return dstErr
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}
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if dstHash == "" {
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fs.Debugf(dst, "Dst hash empty - aborting Src hash check")
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return errNoHash
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}
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return nil
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})
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err = g.Wait()
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if err == errNoHash {
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return true, hash.None, srcHash, dstHash, nil
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}
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if srcErr != nil {
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err = fs.CountError(srcErr)
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fs.Errorf(src, "Failed to calculate src hash: %v", err)
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}
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if dstErr != nil {
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err = fs.CountError(dstErr)
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fs.Errorf(dst, "Failed to calculate dst hash: %v", err)
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}
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if err != nil {
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return false, ht, srcHash, dstHash, err
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}
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if srcHash != dstHash {
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fs.Debugf(src, "%v = %s (%v)", ht, srcHash, src.Fs())
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fs.Debugf(dst, "%v = %s (%v)", ht, dstHash, dst.Fs())
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} else {
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fs.Debugf(src, "%v = %s OK", ht, srcHash)
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}
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return srcHash == dstHash, ht, srcHash, dstHash, nil
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}
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// Equal checks to see if the src and dst objects are equal by looking at
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// size, mtime and hash
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//
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// If the src and dst size are different then it is considered to be
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// not equal. If --size-only is in effect then this is the only check
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// that is done. If --ignore-size is in effect then this check is
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// skipped and the files are considered the same size.
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//
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// If the size is the same and the mtime is the same then it is
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// considered to be equal. This check is skipped if using --checksum.
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//
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// If the size is the same and mtime is different, unreadable or
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// --checksum is set and the hash is the same then the file is
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// considered to be equal. In this case the mtime on the dst is
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// updated if --checksum is not set.
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//
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// Otherwise the file is considered to be not equal including if there
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// were errors reading info.
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func Equal(ctx context.Context, src fs.ObjectInfo, dst fs.Object) bool {
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return equal(ctx, src, dst, defaultEqualOpt(ctx))
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}
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// DirsEqual is like Equal but for dirs instead of objects.
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// It returns true if two dirs should be considered "equal" for the purposes of syncCopyMove
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// (in other words, true == "skip updating modtime/metadata for this dir".)
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// Unlike Equal, it does not consider size or checksum, as these do not apply to directories.
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func DirsEqual(ctx context.Context, src, dst fs.Directory, opt DirsEqualOpt) (equal bool) {
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if dst == nil {
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return false
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}
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ci := fs.GetConfig(ctx)
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if ci.SizeOnly || ci.Immutable || ci.IgnoreExisting || opt.ModifyWindow == fs.ModTimeNotSupported {
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return true
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}
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if ci.IgnoreTimes {
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return false
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}
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if !(opt.SetDirModtime || opt.SetDirMetadata) {
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return true
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}
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srcModTime, dstModTime := src.ModTime(ctx), dst.ModTime(ctx)
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if srcModTime.IsZero() || dstModTime.IsZero() {
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return false
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}
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dt := dstModTime.Sub(srcModTime)
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if dt < opt.ModifyWindow && dt > -opt.ModifyWindow {
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fs.Debugf(dst, "Directory modification time the same (differ by %s, within tolerance %s)", dt, opt.ModifyWindow)
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return true
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}
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if ci.UpdateOlder && dt >= opt.ModifyWindow {
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fs.Debugf(dst, "Destination directory is newer than source, skipping")
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return true
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}
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return false
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}
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// sizeDiffers compare the size of src and dst taking into account the
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// various ways of ignoring sizes
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func sizeDiffers(ctx context.Context, src, dst fs.ObjectInfo) bool {
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ci := fs.GetConfig(ctx)
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if ci.IgnoreSize || src.Size() < 0 || dst.Size() < 0 {
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return false
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}
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return src.Size() != dst.Size()
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}
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var checksumWarning sync.Once
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// options for equal function()
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type equalOpt struct {
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sizeOnly bool // if set only check size
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checkSum bool // if set check checksum+size instead of modtime+size
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updateModTime bool // if set update the modtime if hashes identical and checking with modtime+size
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forceModTimeMatch bool // if set assume modtimes match
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}
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// default set of options for equal()
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func defaultEqualOpt(ctx context.Context) equalOpt {
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ci := fs.GetConfig(ctx)
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return equalOpt{
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sizeOnly: ci.SizeOnly,
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checkSum: ci.CheckSum,
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updateModTime: !ci.NoUpdateModTime,
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forceModTimeMatch: false,
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}
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}
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// DirsEqualOpt represents options for DirsEqual function()
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type DirsEqualOpt struct {
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ModifyWindow time.Duration // Max time diff to be considered the same
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SetDirModtime bool // whether to consider dir modtime
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SetDirMetadata bool // whether to consider dir metadata
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}
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var modTimeUploadOnce sync.Once
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// emit a log if we are about to upload a file to set its modification time
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func logModTimeUpload(dst fs.Object) {
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modTimeUploadOnce.Do(func() {
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fs.Logf(dst.Fs(), "Forced to upload files to set modification times on this backend.")
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})
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}
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// EqualFn allows replacing Equal() with a custom function during NeedTransfer()
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type EqualFn func(ctx context.Context, src fs.ObjectInfo, dst fs.Object) bool
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type equalFnContextKey struct{}
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var equalFnKey = equalFnContextKey{}
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// WithEqualFn stores equalFn in ctx and returns a copy of ctx in which equalFnKey = equalFn
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func WithEqualFn(ctx context.Context, equalFn EqualFn) context.Context {
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return context.WithValue(ctx, equalFnKey, equalFn)
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}
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func equal(ctx context.Context, src fs.ObjectInfo, dst fs.Object, opt equalOpt) bool {
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ci := fs.GetConfig(ctx)
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logger, _ := GetLogger(ctx)
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if sizeDiffers(ctx, src, dst) {
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fs.Debugf(src, "Sizes differ (src %d vs dst %d)", src.Size(), dst.Size())
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logger(ctx, Differ, src, dst, nil)
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return false
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}
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if opt.sizeOnly {
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fs.Debugf(src, "Sizes identical")
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logger(ctx, Match, src, dst, nil)
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return true
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}
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// Assert: Size is equal or being ignored
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// If checking checksum and not modtime
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if opt.checkSum {
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// Check the hash
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same, ht, _ := CheckHashes(ctx, src, dst)
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if !same {
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fs.Debugf(src, "%v differ", ht)
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logger(ctx, Differ, src, dst, nil)
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return false
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}
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if ht == hash.None {
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common := src.Fs().Hashes().Overlap(dst.Fs().Hashes())
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if common.Count() == 0 {
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checksumWarning.Do(func() {
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fs.Logf(dst.Fs(), "--checksum is in use but the source and destination have no hashes in common; falling back to --size-only")
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})
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}
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fs.Debugf(src, "Size of src and dst objects identical")
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} else {
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fs.Debugf(src, "Size and %v of src and dst objects identical", ht)
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}
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logger(ctx, Match, src, dst, nil)
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return true
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}
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srcModTime := src.ModTime(ctx)
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if !opt.forceModTimeMatch {
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// Sizes the same so check the mtime
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modifyWindow := fs.GetModifyWindow(ctx, src.Fs(), dst.Fs())
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if modifyWindow == fs.ModTimeNotSupported {
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fs.Debugf(src, "Sizes identical")
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logger(ctx, Match, src, dst, nil)
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return true
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}
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dstModTime := dst.ModTime(ctx)
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dt := dstModTime.Sub(srcModTime)
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if dt < modifyWindow && dt > -modifyWindow {
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fs.Debugf(src, "Size and modification time the same (differ by %s, within tolerance %s)", dt, modifyWindow)
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logger(ctx, Match, src, dst, nil)
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return true
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}
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fs.Debugf(src, "Modification times differ by %s: %v, %v", dt, srcModTime, dstModTime)
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}
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// Check if the hashes are the same
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same, ht, _ := CheckHashes(ctx, src, dst)
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if !same {
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fs.Debugf(src, "%v differ", ht)
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logger(ctx, Differ, src, dst, nil)
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return false
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}
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if ht == hash.None && !ci.RefreshTimes {
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// if couldn't check hash, return that they differ
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logger(ctx, Differ, src, dst, nil)
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return false
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}
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// mod time differs but hash is the same to reset mod time if required
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if opt.updateModTime {
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if !SkipDestructive(ctx, src, "update modification time") {
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// Size and hash the same but mtime different
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// Error if objects are treated as immutable
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if ci.Immutable {
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fs.Errorf(dst, "Timestamp mismatch between immutable objects")
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logger(ctx, Differ, src, dst, nil)
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return false
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}
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// Update the mtime of the dst object here
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err := dst.SetModTime(ctx, srcModTime)
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if errors.Is(err, fs.ErrorCantSetModTime) {
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logModTimeUpload(dst)
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fs.Infof(dst, "src and dst identical but can't set mod time without re-uploading")
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logger(ctx, Differ, src, dst, nil)
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return false
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} else if errors.Is(err, fs.ErrorCantSetModTimeWithoutDelete) {
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logModTimeUpload(dst)
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fs.Infof(dst, "src and dst identical but can't set mod time without deleting and re-uploading")
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// Remove the file if BackupDir isn't set. If BackupDir is set we would rather have the old file
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// put in the BackupDir than deleted which is what will happen if we don't delete it.
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if ci.BackupDir == "" {
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err = dst.Remove(ctx)
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if err != nil {
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fs.Errorf(dst, "failed to delete before re-upload: %v", err)
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}
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}
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logger(ctx, Differ, src, dst, nil)
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return false
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} else if err != nil {
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err = fs.CountError(err)
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fs.Errorf(dst, "Failed to set modification time: %v", err)
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} else {
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fs.Infof(src, "Updated modification time in destination")
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}
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}
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}
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logger(ctx, Match, src, dst, nil)
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return true
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}
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// CommonHash returns a single hash.Type and a HashOption with that
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// type which is in common between the two fs.Fs.
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func CommonHash(ctx context.Context, fa, fb fs.Info) (hash.Type, *fs.HashesOption) {
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ci := fs.GetConfig(ctx)
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// work out which hash to use - limit to 1 hash in common
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var common hash.Set
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hashType := hash.None
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if !ci.IgnoreChecksum {
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common = fb.Hashes().Overlap(fa.Hashes())
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if common.Count() > 0 {
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hashType = common.GetOne()
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common = hash.Set(hashType)
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}
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}
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return hashType, &fs.HashesOption{Hashes: common}
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}
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|
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// SameObject returns true if src and dst could be pointing to the
|
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// same object.
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func SameObject(src, dst fs.Object) bool {
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srcFs, dstFs := src.Fs(), dst.Fs()
|
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if !SameConfig(srcFs, dstFs) {
|
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// If same remote type then check ID of objects if available
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doSrcID, srcIDOK := src.(fs.IDer)
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doDstID, dstIDOK := dst.(fs.IDer)
|
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if srcIDOK && dstIDOK && SameRemoteType(srcFs, dstFs) {
|
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srcID, dstID := doSrcID.ID(), doDstID.ID()
|
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if srcID != "" && srcID == dstID {
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return true
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}
|
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}
|
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return false
|
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}
|
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srcPath := path.Join(srcFs.Root(), src.Remote())
|
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dstPath := path.Join(dstFs.Root(), dst.Remote())
|
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if srcFs.Features().IsLocal && dstFs.Features().IsLocal && runtime.GOOS == "darwin" {
|
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if norm.NFC.String(srcPath) == norm.NFC.String(dstPath) {
|
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return true
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}
|
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}
|
|
if dst.Fs().Features().CaseInsensitive {
|
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srcPath = strings.ToLower(srcPath)
|
|
dstPath = strings.ToLower(dstPath)
|
|
}
|
|
return srcPath == dstPath
|
|
}
|
|
|
|
// Move src object to dst or fdst if nil. If dst is nil then it uses
|
|
// remote as the name of the new object.
|
|
//
|
|
// Note that you must check the destination does not exist before
|
|
// calling this and pass it as dst. If you pass dst=nil and the
|
|
// destination does exist then this may create duplicates or return
|
|
// errors.
|
|
//
|
|
// It returns the destination object if possible. Note that this may
|
|
// be nil.
|
|
//
|
|
// This is accounted as a check.
|
|
func Move(ctx context.Context, fdst fs.Fs, dst fs.Object, remote string, src fs.Object) (newDst fs.Object, err error) {
|
|
return move(ctx, fdst, dst, remote, src, false)
|
|
}
|
|
|
|
// MoveTransfer moves src object to dst or fdst if nil. If dst is nil
|
|
// then it uses remote as the name of the new object.
|
|
//
|
|
// This is identical to Move but is accounted as a transfer.
|
|
func MoveTransfer(ctx context.Context, fdst fs.Fs, dst fs.Object, remote string, src fs.Object) (newDst fs.Object, err error) {
|
|
return move(ctx, fdst, dst, remote, src, true)
|
|
}
|
|
|
|
// move - see Move for help
|
|
func move(ctx context.Context, fdst fs.Fs, dst fs.Object, remote string, src fs.Object, isTransfer bool) (newDst fs.Object, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
var tr *accounting.Transfer
|
|
if isTransfer {
|
|
tr = accounting.Stats(ctx).NewTransfer(src, fdst)
|
|
} else {
|
|
tr = accounting.Stats(ctx).NewCheckingTransfer(src, "moving")
|
|
}
|
|
defer func() {
|
|
if err == nil {
|
|
accounting.Stats(ctx).Renames(1)
|
|
}
|
|
tr.Done(ctx, err)
|
|
}()
|
|
newDst = dst
|
|
if SkipDestructive(ctx, src, "move") {
|
|
in := tr.Account(ctx, nil)
|
|
in.DryRun(src.Size())
|
|
return newDst, nil
|
|
}
|
|
// See if we have Move available
|
|
if doMove := fdst.Features().Move; doMove != nil && (SameConfig(src.Fs(), fdst) || (SameRemoteType(src.Fs(), fdst) && (fdst.Features().ServerSideAcrossConfigs || ci.ServerSideAcrossConfigs))) {
|
|
// Delete destination if it exists and is not the same file as src (could be same file while seemingly different if the remote is case insensitive)
|
|
if dst != nil {
|
|
if !SameObject(src, dst) {
|
|
err = DeleteFile(ctx, dst)
|
|
if err != nil {
|
|
return newDst, err
|
|
}
|
|
} else if needsMoveCaseInsensitive(fdst, fdst, remote, src.Remote(), false) {
|
|
doMove = func(ctx context.Context, src fs.Object, remote string) (fs.Object, error) {
|
|
return moveCaseInsensitive(ctx, fdst, fdst, remote, src.Remote(), false, src)
|
|
}
|
|
}
|
|
}
|
|
// Move dst <- src
|
|
in := tr.Account(ctx, nil) // account the transfer
|
|
in.ServerSideTransferStart()
|
|
newDst, err = doMove(ctx, src, remote)
|
|
switch err {
|
|
case nil:
|
|
if newDst != nil && src.String() != newDst.String() {
|
|
fs.Infof(src, "Moved (server-side) to: %s", newDst.String())
|
|
} else {
|
|
fs.Infof(src, "Moved (server-side)")
|
|
}
|
|
in.ServerSideMoveEnd(newDst.Size()) // account the bytes for the server-side transfer
|
|
_ = in.Close()
|
|
return newDst, nil
|
|
case fs.ErrorCantMove:
|
|
fs.Debugf(src, "Can't move, switching to copy")
|
|
_ = in.Close()
|
|
default:
|
|
err = fs.CountError(err)
|
|
fs.Errorf(src, "Couldn't move: %v", err)
|
|
_ = in.Close()
|
|
return newDst, err
|
|
}
|
|
}
|
|
// Move not found or didn't work so copy dst <- src
|
|
newDst, err = Copy(ctx, fdst, dst, remote, src)
|
|
if err != nil {
|
|
fs.Errorf(src, "Not deleting source as copy failed: %v", err)
|
|
return newDst, err
|
|
}
|
|
// Delete src if no error on copy
|
|
return newDst, DeleteFile(ctx, src)
|
|
}
|
|
|
|
// CanServerSideMove returns true if fdst support server-side moves or
|
|
// server-side copies
|
|
//
|
|
// Some remotes simulate rename by server-side copy and delete, so include
|
|
// remotes that implements either Mover or Copier.
|
|
func CanServerSideMove(fdst fs.Fs) bool {
|
|
canMove := fdst.Features().Move != nil
|
|
canCopy := fdst.Features().Copy != nil
|
|
return canMove || canCopy
|
|
}
|
|
|
|
// SuffixName adds the current --suffix to the remote, obeying
|
|
// --suffix-keep-extension if set
|
|
func SuffixName(ctx context.Context, remote string) string {
|
|
ci := fs.GetConfig(ctx)
|
|
if ci.Suffix == "" {
|
|
return remote
|
|
}
|
|
if ci.SuffixKeepExtension {
|
|
var (
|
|
base = remote
|
|
exts = ""
|
|
first = true
|
|
ext = path.Ext(remote)
|
|
)
|
|
for ext != "" {
|
|
// Look second and subsequent extensions in mime types.
|
|
// If they aren't found then don't keep it as an extension.
|
|
if !first && mime.TypeByExtension(ext) == "" {
|
|
break
|
|
}
|
|
base = base[:len(base)-len(ext)]
|
|
exts = ext + exts
|
|
first = false
|
|
ext = path.Ext(base)
|
|
}
|
|
return base + ci.Suffix + exts
|
|
}
|
|
return remote + ci.Suffix
|
|
}
|
|
|
|
// DeleteFileWithBackupDir deletes a single file respecting --dry-run
|
|
// and accumulating stats and errors.
|
|
//
|
|
// If backupDir is set then it moves the file to there instead of
|
|
// deleting
|
|
func DeleteFileWithBackupDir(ctx context.Context, dst fs.Object, backupDir fs.Fs) (err error) {
|
|
tr := accounting.Stats(ctx).NewCheckingTransfer(dst, "deleting")
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
err = accounting.Stats(ctx).DeleteFile(ctx, dst.Size())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
action, actioned := "delete", "Deleted"
|
|
if backupDir != nil {
|
|
action, actioned = "move into backup dir", "Moved into backup dir"
|
|
}
|
|
skip := SkipDestructive(ctx, dst, action)
|
|
if skip {
|
|
// do nothing
|
|
} else if backupDir != nil {
|
|
err = MoveBackupDir(ctx, backupDir, dst)
|
|
} else {
|
|
err = dst.Remove(ctx)
|
|
}
|
|
if err != nil {
|
|
fs.Errorf(dst, "Couldn't %s: %v", action, err)
|
|
err = fs.CountError(err)
|
|
} else if !skip {
|
|
fs.Infof(dst, actioned)
|
|
}
|
|
return err
|
|
}
|
|
|
|
// DeleteFile deletes a single file respecting --dry-run and accumulating stats and errors.
|
|
//
|
|
// If useBackupDir is set and --backup-dir is in effect then it moves
|
|
// the file to there instead of deleting
|
|
func DeleteFile(ctx context.Context, dst fs.Object) (err error) {
|
|
return DeleteFileWithBackupDir(ctx, dst, nil)
|
|
}
|
|
|
|
// DeleteFilesWithBackupDir removes all the files passed in the
|
|
// channel
|
|
//
|
|
// If backupDir is set the files will be placed into that directory
|
|
// instead of being deleted.
|
|
func DeleteFilesWithBackupDir(ctx context.Context, toBeDeleted fs.ObjectsChan, backupDir fs.Fs) error {
|
|
var wg sync.WaitGroup
|
|
ci := fs.GetConfig(ctx)
|
|
wg.Add(ci.Checkers)
|
|
var errorCount atomic.Int32
|
|
var fatalErrorCount atomic.Int32
|
|
|
|
for i := 0; i < ci.Checkers; i++ {
|
|
go func() {
|
|
defer wg.Done()
|
|
for dst := range toBeDeleted {
|
|
err := DeleteFileWithBackupDir(ctx, dst, backupDir)
|
|
if err != nil {
|
|
errorCount.Add(1)
|
|
logger, _ := GetLogger(ctx)
|
|
logger(ctx, TransferError, nil, dst, err)
|
|
if fserrors.IsFatalError(err) {
|
|
fs.Errorf(dst, "Got fatal error on delete: %s", err)
|
|
fatalErrorCount.Add(1)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
fs.Debugf(nil, "Waiting for deletions to finish")
|
|
wg.Wait()
|
|
if errorCount.Load() > 0 {
|
|
err := fmt.Errorf("failed to delete %d files", errorCount.Load())
|
|
if fatalErrorCount.Load() > 0 {
|
|
return fserrors.FatalError(err)
|
|
}
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DeleteFiles removes all the files passed in the channel
|
|
func DeleteFiles(ctx context.Context, toBeDeleted fs.ObjectsChan) error {
|
|
return DeleteFilesWithBackupDir(ctx, toBeDeleted, nil)
|
|
}
|
|
|
|
// SameRemoteType returns true if fdst and fsrc are the same type
|
|
func SameRemoteType(fdst, fsrc fs.Info) bool {
|
|
return fmt.Sprintf("%T", fdst) == fmt.Sprintf("%T", fsrc)
|
|
}
|
|
|
|
// SameConfig returns true if fdst and fsrc are using the same config
|
|
// file entry
|
|
func SameConfig(fdst, fsrc fs.Info) bool {
|
|
return fdst.Name() == fsrc.Name()
|
|
}
|
|
|
|
// SameConfigArr returns true if any of []fsrcs has same config file entry with fdst
|
|
func SameConfigArr(fdst fs.Info, fsrcs []fs.Fs) bool {
|
|
for _, fsrc := range fsrcs {
|
|
if fdst.Name() == fsrc.Name() {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Same returns true if fdst and fsrc point to the same underlying Fs
|
|
func Same(fdst, fsrc fs.Info) bool {
|
|
return SameConfig(fdst, fsrc) && strings.Trim(fdst.Root(), "/") == strings.Trim(fsrc.Root(), "/")
|
|
}
|
|
|
|
// fixRoot returns the Root with a trailing / if not empty.
|
|
//
|
|
// It returns a case folded version for case insensitive file systems
|
|
func fixRoot(f fs.Info) (s string, folded string) {
|
|
s = strings.Trim(filepath.ToSlash(f.Root()), "/")
|
|
if s != "" {
|
|
s += "/"
|
|
}
|
|
folded = s
|
|
if f.Features().CaseInsensitive {
|
|
folded = strings.ToLower(s)
|
|
}
|
|
return s, folded
|
|
}
|
|
|
|
// OverlappingFilterCheck returns true if fdst and fsrc point to the same
|
|
// underlying Fs and they overlap without fdst being excluded by any filter rule.
|
|
func OverlappingFilterCheck(ctx context.Context, fdst fs.Fs, fsrc fs.Fs) bool {
|
|
if !SameConfig(fdst, fsrc) {
|
|
return false
|
|
}
|
|
fdstRoot, fdstRootFolded := fixRoot(fdst)
|
|
fsrcRoot, fsrcRootFolded := fixRoot(fsrc)
|
|
if fdstRootFolded == fsrcRootFolded {
|
|
return true
|
|
} else if strings.HasPrefix(fdstRootFolded, fsrcRootFolded) {
|
|
fdstRelative := fdstRoot[len(fsrcRoot):]
|
|
return filterCheck(ctx, fsrc, fdstRelative)
|
|
} else if strings.HasPrefix(fsrcRootFolded, fdstRootFolded) {
|
|
fsrcRelative := fsrcRoot[len(fdstRoot):]
|
|
return filterCheck(ctx, fdst, fsrcRelative)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// filterCheck checks if dir is included in f
|
|
func filterCheck(ctx context.Context, f fs.Fs, dir string) bool {
|
|
fi := filter.GetConfig(ctx)
|
|
includeDirectory := fi.IncludeDirectory(ctx, f)
|
|
include, err := includeDirectory(dir)
|
|
if err != nil {
|
|
fs.Errorf(f, "Failed to discover whether directory is included: %v", err)
|
|
return true
|
|
}
|
|
return include
|
|
}
|
|
|
|
// SameDir returns true if fdst and fsrc point to the same
|
|
// underlying Fs and they are the same directory.
|
|
func SameDir(fdst, fsrc fs.Info) bool {
|
|
if !SameConfig(fdst, fsrc) {
|
|
return false
|
|
}
|
|
_, fdstRootFolded := fixRoot(fdst)
|
|
_, fsrcRootFolded := fixRoot(fsrc)
|
|
return fdstRootFolded == fsrcRootFolded
|
|
}
|
|
|
|
// Retry runs fn up to maxTries times if it returns a retriable error
|
|
func Retry(ctx context.Context, o interface{}, maxTries int, fn func() error) (err error) {
|
|
for tries := 1; tries <= maxTries; tries++ {
|
|
// Call the function which might error
|
|
err = fn()
|
|
if err == nil {
|
|
break
|
|
}
|
|
// Retry if err returned a retry error
|
|
if fserrors.ContextError(ctx, &err) {
|
|
break
|
|
}
|
|
if fserrors.IsRetryError(err) || fserrors.ShouldRetry(err) {
|
|
fs.Debugf(o, "Received error: %v - low level retry %d/%d", err, tries, maxTries)
|
|
continue
|
|
}
|
|
break
|
|
}
|
|
return err
|
|
}
|
|
|
|
// ListFn lists the Fs to the supplied function
|
|
//
|
|
// Lists in parallel which may get them out of order
|
|
func ListFn(ctx context.Context, f fs.Fs, fn func(fs.Object)) error {
|
|
ci := fs.GetConfig(ctx)
|
|
return walk.ListR(ctx, f, "", false, ci.MaxDepth, walk.ListObjects, func(entries fs.DirEntries) error {
|
|
entries.ForObject(fn)
|
|
return nil
|
|
})
|
|
}
|
|
|
|
// StdoutMutex mutex for synchronized output on stdout
|
|
var StdoutMutex sync.Mutex
|
|
|
|
// SyncPrintf is a global var holding the Printf function so that it
|
|
// can be overridden.
|
|
//
|
|
// This writes to stdout holding the StdoutMutex. If you are going to
|
|
// override it and write to os.Stdout then you should hold the
|
|
// StdoutMutex too.
|
|
var SyncPrintf = func(format string, a ...interface{}) {
|
|
StdoutMutex.Lock()
|
|
defer StdoutMutex.Unlock()
|
|
fmt.Printf(format, a...)
|
|
}
|
|
|
|
// SyncFprintf - Synchronized fmt.Fprintf
|
|
//
|
|
// Ignores errors from Fprintf.
|
|
//
|
|
// Prints to stdout if w is nil
|
|
func SyncFprintf(w io.Writer, format string, a ...interface{}) {
|
|
if w == nil || w == os.Stdout {
|
|
SyncPrintf(format, a...)
|
|
} else {
|
|
StdoutMutex.Lock()
|
|
defer StdoutMutex.Unlock()
|
|
_, _ = fmt.Fprintf(w, format, a...)
|
|
}
|
|
}
|
|
|
|
// SizeString make string representation of size for output
|
|
//
|
|
// Optional human-readable format including a binary suffix
|
|
func SizeString(size int64, humanReadable bool) string {
|
|
if humanReadable {
|
|
if size < 0 {
|
|
return "-" + fs.SizeSuffix(-size).String()
|
|
}
|
|
return fs.SizeSuffix(size).String()
|
|
}
|
|
return strconv.FormatInt(size, 10)
|
|
}
|
|
|
|
// SizeStringField make string representation of size for output in fixed width field
|
|
//
|
|
// Optional human-readable format including a binary suffix
|
|
// Argument rawWidth is used to format field with of raw value. When humanReadable
|
|
// option the width is hard coded to 9, since SizeSuffix strings have precision 3
|
|
// and longest value will be "999.999Ei". This way the width can be optimized
|
|
// depending to the humanReadable option. To always use a longer width the return
|
|
// value can always be fed into another format string with a specific field with.
|
|
func SizeStringField(size int64, humanReadable bool, rawWidth int) string {
|
|
str := SizeString(size, humanReadable)
|
|
if humanReadable {
|
|
return fmt.Sprintf("%9s", str)
|
|
}
|
|
return fmt.Sprintf("%[2]*[1]s", str, rawWidth)
|
|
}
|
|
|
|
// CountString make string representation of count for output
|
|
//
|
|
// Optional human-readable format including a decimal suffix
|
|
func CountString(count int64, humanReadable bool) string {
|
|
if humanReadable {
|
|
if count < 0 {
|
|
return "-" + fs.CountSuffix(-count).String()
|
|
}
|
|
return fs.CountSuffix(count).String()
|
|
}
|
|
return strconv.FormatInt(count, 10)
|
|
}
|
|
|
|
// CountStringField make string representation of count for output in fixed width field
|
|
//
|
|
// Similar to SizeStringField, but human readable with decimal prefix and field width 8
|
|
// since there is no 'i' in the decimal prefix symbols (e.g. "999.999E")
|
|
func CountStringField(count int64, humanReadable bool, rawWidth int) string {
|
|
str := CountString(count, humanReadable)
|
|
if humanReadable {
|
|
return fmt.Sprintf("%8s", str)
|
|
}
|
|
return fmt.Sprintf("%[2]*[1]s", str, rawWidth)
|
|
}
|
|
|
|
// List the Fs to the supplied writer
|
|
//
|
|
// Shows size and path - obeys includes and excludes.
|
|
//
|
|
// Lists in parallel which may get them out of order
|
|
func List(ctx context.Context, f fs.Fs, w io.Writer) error {
|
|
ci := fs.GetConfig(ctx)
|
|
return ListFn(ctx, f, func(o fs.Object) {
|
|
SyncFprintf(w, "%s %s\n", SizeStringField(o.Size(), ci.HumanReadable, 9), o.Remote())
|
|
})
|
|
}
|
|
|
|
// ListLong lists the Fs to the supplied writer
|
|
//
|
|
// Shows size, mod time and path - obeys includes and excludes.
|
|
//
|
|
// Lists in parallel which may get them out of order
|
|
func ListLong(ctx context.Context, f fs.Fs, w io.Writer) error {
|
|
ci := fs.GetConfig(ctx)
|
|
return ListFn(ctx, f, func(o fs.Object) {
|
|
tr := accounting.Stats(ctx).NewCheckingTransfer(o, "listing")
|
|
defer func() {
|
|
tr.Done(ctx, nil)
|
|
}()
|
|
modTime := o.ModTime(ctx)
|
|
SyncFprintf(w, "%s %s %s\n", SizeStringField(o.Size(), ci.HumanReadable, 9), modTime.Local().Format("2006-01-02 15:04:05.000000000"), o.Remote())
|
|
})
|
|
}
|
|
|
|
// HashSum returns the human-readable hash for ht passed in. This may
|
|
// be UNSUPPORTED or ERROR. If it isn't returning a valid hash it will
|
|
// return an error.
|
|
func HashSum(ctx context.Context, ht hash.Type, base64Encoded bool, downloadFlag bool, o fs.Object) (string, error) {
|
|
var sum string
|
|
var err error
|
|
|
|
// If downloadFlag is true, download and hash the file.
|
|
// If downloadFlag is false, call o.Hash asking the remote for the hash
|
|
if downloadFlag {
|
|
// Setup: Define accounting, open the file with NewReOpen to provide restarts, account for the transfer, and setup a multi-hasher with the appropriate type
|
|
// Execution: io.Copy file to hasher, get hash and encode in hex
|
|
|
|
tr := accounting.Stats(ctx).NewTransfer(o, nil)
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
|
|
// Open with NewReOpen to provide restarts
|
|
var options []fs.OpenOption
|
|
for _, option := range fs.GetConfig(ctx).DownloadHeaders {
|
|
options = append(options, option)
|
|
}
|
|
var in io.ReadCloser
|
|
in, err = Open(ctx, o, options...)
|
|
if err != nil {
|
|
return "ERROR", fmt.Errorf("failed to open file %v: %w", o, err)
|
|
}
|
|
|
|
// Account and buffer the transfer
|
|
in = tr.Account(ctx, in).WithBuffer()
|
|
|
|
// Setup hasher
|
|
hasher, err := hash.NewMultiHasherTypes(hash.NewHashSet(ht))
|
|
if err != nil {
|
|
return "UNSUPPORTED", fmt.Errorf("hash unsupported: %w", err)
|
|
}
|
|
|
|
// Copy to hasher, downloading the file and passing directly to hash
|
|
_, err = io.Copy(hasher, in)
|
|
if err != nil {
|
|
return "ERROR", fmt.Errorf("failed to copy file to hasher: %w", err)
|
|
}
|
|
|
|
// Get hash as hex or base64 encoded string
|
|
sum, err = hasher.SumString(ht, base64Encoded)
|
|
if err != nil {
|
|
return "ERROR", fmt.Errorf("hasher returned an error: %w", err)
|
|
}
|
|
} else {
|
|
tr := accounting.Stats(ctx).NewCheckingTransfer(o, "hashing")
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
|
|
sum, err = o.Hash(ctx, ht)
|
|
if base64Encoded {
|
|
hexBytes, _ := hex.DecodeString(sum)
|
|
sum = base64.URLEncoding.EncodeToString(hexBytes)
|
|
}
|
|
if err == hash.ErrUnsupported {
|
|
return "", fmt.Errorf("hash unsupported: %w", err)
|
|
}
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to get hash %v from backend: %w", ht, err)
|
|
}
|
|
}
|
|
|
|
return sum, nil
|
|
}
|
|
|
|
// HashLister does an md5sum equivalent for the hash type passed in
|
|
// Updated to handle both standard hex encoding and base64
|
|
// Updated to perform multiple hashes concurrently
|
|
func HashLister(ctx context.Context, ht hash.Type, outputBase64 bool, downloadFlag bool, f fs.Fs, w io.Writer) error {
|
|
width := hash.Width(ht, outputBase64)
|
|
// Use --checkers concurrency unless downloading in which case use --transfers
|
|
concurrency := fs.GetConfig(ctx).Checkers
|
|
if downloadFlag {
|
|
concurrency = fs.GetConfig(ctx).Transfers
|
|
}
|
|
concurrencyControl := make(chan struct{}, concurrency)
|
|
var wg sync.WaitGroup
|
|
err := ListFn(ctx, f, func(o fs.Object) {
|
|
wg.Add(1)
|
|
concurrencyControl <- struct{}{}
|
|
go func() {
|
|
defer func() {
|
|
<-concurrencyControl
|
|
wg.Done()
|
|
}()
|
|
sum, err := HashSum(ctx, ht, outputBase64, downloadFlag, o)
|
|
if err != nil {
|
|
fs.Errorf(o, "%v", fs.CountError(err))
|
|
return
|
|
}
|
|
SyncFprintf(w, "%*s %s\n", width, sum, o.Remote())
|
|
}()
|
|
})
|
|
wg.Wait()
|
|
return err
|
|
}
|
|
|
|
// HashSumStream outputs a line compatible with md5sum to w based on the
|
|
// input stream in and the hash type ht passed in. If outputBase64 is
|
|
// set then the hash will be base64 instead of hexadecimal.
|
|
func HashSumStream(ht hash.Type, outputBase64 bool, in io.ReadCloser, w io.Writer) error {
|
|
hasher, err := hash.NewMultiHasherTypes(hash.NewHashSet(ht))
|
|
if err != nil {
|
|
return fmt.Errorf("hash unsupported: %w", err)
|
|
}
|
|
written, err := io.Copy(hasher, in)
|
|
fs.Debugf(nil, "Creating %s hash of %d bytes read from input stream", ht, written)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to copy input to hasher: %w", err)
|
|
}
|
|
sum, err := hasher.SumString(ht, outputBase64)
|
|
if err != nil {
|
|
return fmt.Errorf("hasher returned an error: %w", err)
|
|
}
|
|
width := hash.Width(ht, outputBase64)
|
|
SyncFprintf(w, "%*s -\n", width, sum)
|
|
return nil
|
|
}
|
|
|
|
// Count counts the objects and their sizes in the Fs
|
|
//
|
|
// Obeys includes and excludes
|
|
func Count(ctx context.Context, f fs.Fs) (objects int64, size int64, sizelessObjects int64, err error) {
|
|
err = ListFn(ctx, f, func(o fs.Object) {
|
|
atomic.AddInt64(&objects, 1)
|
|
objectSize := o.Size()
|
|
if objectSize < 0 {
|
|
atomic.AddInt64(&sizelessObjects, 1)
|
|
} else if objectSize > 0 {
|
|
atomic.AddInt64(&size, objectSize)
|
|
}
|
|
})
|
|
return
|
|
}
|
|
|
|
// ConfigMaxDepth returns the depth to use for a recursive or non recursive listing.
|
|
func ConfigMaxDepth(ctx context.Context, recursive bool) int {
|
|
ci := fs.GetConfig(ctx)
|
|
depth := ci.MaxDepth
|
|
if !recursive && depth < 0 {
|
|
depth = 1
|
|
}
|
|
return depth
|
|
}
|
|
|
|
// ListDir lists the directories/buckets/containers in the Fs to the supplied writer
|
|
func ListDir(ctx context.Context, f fs.Fs, w io.Writer) error {
|
|
ci := fs.GetConfig(ctx)
|
|
return walk.ListR(ctx, f, "", false, ConfigMaxDepth(ctx, false), walk.ListDirs, func(entries fs.DirEntries) error {
|
|
entries.ForDir(func(dir fs.Directory) {
|
|
if dir != nil {
|
|
SyncFprintf(w, "%s %13s %s %s\n", SizeStringField(dir.Size(), ci.HumanReadable, 12), dir.ModTime(ctx).Local().Format("2006-01-02 15:04:05"), CountStringField(dir.Items(), ci.HumanReadable, 9), dir.Remote())
|
|
}
|
|
})
|
|
return nil
|
|
})
|
|
}
|
|
|
|
// Mkdir makes a destination directory or container
|
|
func Mkdir(ctx context.Context, f fs.Fs, dir string) error {
|
|
if SkipDestructive(ctx, fs.LogDirName(f, dir), "make directory") {
|
|
return nil
|
|
}
|
|
fs.Debugf(fs.LogDirName(f, dir), "Making directory")
|
|
err := f.Mkdir(ctx, dir)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// MkdirMetadata makes a destination directory or container with metadata
|
|
//
|
|
// If the destination Fs doesn't support this it will fall back to
|
|
// Mkdir and in this case newDst will be nil.
|
|
func MkdirMetadata(ctx context.Context, f fs.Fs, dir string, metadata fs.Metadata) (newDst fs.Directory, err error) {
|
|
do := f.Features().MkdirMetadata
|
|
if do == nil {
|
|
return nil, Mkdir(ctx, f, dir)
|
|
}
|
|
logName := fs.LogDirName(f, dir)
|
|
if SkipDestructive(ctx, logName, "make directory") {
|
|
return nil, nil
|
|
}
|
|
fs.Debugf(fs.LogDirName(f, dir), "Making directory with metadata")
|
|
newDst, err = do(ctx, dir, metadata)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
return nil, err
|
|
}
|
|
if mtime, ok := metadata["mtime"]; ok {
|
|
fs.Infof(logName, "Made directory with metadata (mtime=%s)", mtime)
|
|
} else {
|
|
fs.Infof(logName, "Made directory with metadata")
|
|
}
|
|
return newDst, err
|
|
}
|
|
|
|
// MkdirModTime makes a destination directory or container with modtime
|
|
//
|
|
// It will try to make the directory with MkdirMetadata and if that
|
|
// succeeds it will return a non-nil newDst. In all other cases newDst
|
|
// will be nil.
|
|
//
|
|
// If the directory was created with MkDir then it will attempt to use
|
|
// Fs.DirSetModTime to update the directory modtime if available.
|
|
func MkdirModTime(ctx context.Context, f fs.Fs, dir string, modTime time.Time) (newDst fs.Directory, err error) {
|
|
logName := fs.LogDirName(f, dir)
|
|
if SkipDestructive(ctx, logName, "make directory") {
|
|
return nil, nil
|
|
}
|
|
metadata := fs.Metadata{
|
|
"mtime": modTime.Format(time.RFC3339Nano),
|
|
}
|
|
newDst, err = MkdirMetadata(ctx, f, dir, metadata)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if newDst != nil {
|
|
// The directory was created and we have logged already
|
|
return newDst, nil
|
|
}
|
|
// The directory was created with Mkdir then we should try to set the time
|
|
if do := f.Features().DirSetModTime; do != nil {
|
|
err = do(ctx, dir, modTime)
|
|
}
|
|
fs.Infof(logName, "Made directory with modification time %v", modTime)
|
|
return newDst, err
|
|
}
|
|
|
|
// TryRmdir removes a container but not if not empty. It doesn't
|
|
// count errors but may return one.
|
|
func TryRmdir(ctx context.Context, f fs.Fs, dir string) error {
|
|
accounting.Stats(ctx).DeletedDirs(1)
|
|
if SkipDestructive(ctx, fs.LogDirName(f, dir), "remove directory") {
|
|
return nil
|
|
}
|
|
fs.Infof(fs.LogDirName(f, dir), "Removing directory")
|
|
return f.Rmdir(ctx, dir)
|
|
}
|
|
|
|
// Rmdir removes a container but not if not empty
|
|
func Rmdir(ctx context.Context, f fs.Fs, dir string) error {
|
|
err := TryRmdir(ctx, f, dir)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
return err
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Purge removes a directory and all of its contents
|
|
func Purge(ctx context.Context, f fs.Fs, dir string) (err error) {
|
|
doFallbackPurge := true
|
|
if doPurge := f.Features().Purge; doPurge != nil {
|
|
doFallbackPurge = false
|
|
accounting.Stats(ctx).DeletedDirs(1)
|
|
if SkipDestructive(ctx, fs.LogDirName(f, dir), "purge directory") {
|
|
return nil
|
|
}
|
|
err = doPurge(ctx, dir)
|
|
if errors.Is(err, fs.ErrorCantPurge) {
|
|
doFallbackPurge = true
|
|
}
|
|
}
|
|
if doFallbackPurge {
|
|
// DeleteFiles and Rmdir observe --dry-run
|
|
err = DeleteFiles(ctx, listToChan(ctx, f, dir))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = Rmdirs(ctx, f, dir, false)
|
|
}
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Delete removes all the contents of a container. Unlike Purge, it
|
|
// obeys includes and excludes.
|
|
func Delete(ctx context.Context, f fs.Fs) error {
|
|
ci := fs.GetConfig(ctx)
|
|
delChan := make(fs.ObjectsChan, ci.Checkers)
|
|
delErr := make(chan error, 1)
|
|
go func() {
|
|
delErr <- DeleteFiles(ctx, delChan)
|
|
}()
|
|
err := ListFn(ctx, f, func(o fs.Object) {
|
|
delChan <- o
|
|
})
|
|
close(delChan)
|
|
delError := <-delErr
|
|
if err == nil {
|
|
err = delError
|
|
}
|
|
return err
|
|
}
|
|
|
|
// listToChan will transfer all objects in the listing to the output
|
|
//
|
|
// If an error occurs, the error will be logged, and it will close the
|
|
// channel.
|
|
//
|
|
// If the error was ErrorDirNotFound then it will be ignored
|
|
func listToChan(ctx context.Context, f fs.Fs, dir string) fs.ObjectsChan {
|
|
ci := fs.GetConfig(ctx)
|
|
o := make(fs.ObjectsChan, ci.Checkers)
|
|
go func() {
|
|
defer close(o)
|
|
err := walk.ListR(ctx, f, dir, true, ci.MaxDepth, walk.ListObjects, func(entries fs.DirEntries) error {
|
|
entries.ForObject(func(obj fs.Object) {
|
|
o <- obj
|
|
})
|
|
return nil
|
|
})
|
|
if err != nil && err != fs.ErrorDirNotFound {
|
|
err = fmt.Errorf("failed to list: %w", err)
|
|
err = fs.CountError(err)
|
|
fs.Errorf(nil, "%v", err)
|
|
}
|
|
}()
|
|
return o
|
|
}
|
|
|
|
// CleanUp removes the trash for the Fs
|
|
func CleanUp(ctx context.Context, f fs.Fs) error {
|
|
doCleanUp := f.Features().CleanUp
|
|
if doCleanUp == nil {
|
|
return fmt.Errorf("%v doesn't support cleanup", f)
|
|
}
|
|
if SkipDestructive(ctx, f, "clean up old files") {
|
|
return nil
|
|
}
|
|
return doCleanUp(ctx)
|
|
}
|
|
|
|
// wrap a Reader and a Closer together into a ReadCloser
|
|
type readCloser struct {
|
|
io.Reader
|
|
io.Closer
|
|
}
|
|
|
|
// Cat any files to the io.Writer
|
|
//
|
|
// if offset == 0 it will be ignored
|
|
// if offset > 0 then the file will be seeked to that offset
|
|
// if offset < 0 then the file will be seeked that far from the end
|
|
//
|
|
// if count < 0 then it will be ignored
|
|
// if count >= 0 then only that many characters will be output
|
|
func Cat(ctx context.Context, f fs.Fs, w io.Writer, offset, count int64, sep []byte) error {
|
|
var mu sync.Mutex
|
|
ci := fs.GetConfig(ctx)
|
|
return ListFn(ctx, f, func(o fs.Object) {
|
|
var err error
|
|
tr := accounting.Stats(ctx).NewTransfer(o, nil)
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
opt := fs.RangeOption{Start: offset, End: -1}
|
|
size := o.Size()
|
|
if opt.Start < 0 {
|
|
opt.Start += size
|
|
}
|
|
if count >= 0 {
|
|
opt.End = opt.Start + count - 1
|
|
}
|
|
var options []fs.OpenOption
|
|
if opt.Start > 0 || opt.End >= 0 {
|
|
options = append(options, &opt)
|
|
}
|
|
for _, option := range ci.DownloadHeaders {
|
|
options = append(options, option)
|
|
}
|
|
var in io.ReadCloser
|
|
in, err = Open(ctx, o, options...)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
fs.Errorf(o, "Failed to open: %v", err)
|
|
return
|
|
}
|
|
if count >= 0 {
|
|
in = &readCloser{Reader: &io.LimitedReader{R: in, N: count}, Closer: in}
|
|
}
|
|
in = tr.Account(ctx, in).WithBuffer() // account and buffer the transfer
|
|
// take the lock just before we output stuff, so at the last possible moment
|
|
mu.Lock()
|
|
defer mu.Unlock()
|
|
_, err = io.Copy(w, in)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
fs.Errorf(o, "Failed to send to output: %v", err)
|
|
}
|
|
if len(sep) >= 0 {
|
|
_, err = w.Write(sep)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
fs.Errorf(o, "Failed to send separator to output: %v", err)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
// Rcat reads data from the Reader until EOF and uploads it to a file on remote
|
|
func Rcat(ctx context.Context, fdst fs.Fs, dstFileName string, in io.ReadCloser, modTime time.Time, meta fs.Metadata) (dst fs.Object, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
tr := accounting.Stats(ctx).NewTransferRemoteSize(dstFileName, -1, nil, fdst)
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
in = tr.Account(ctx, in).WithBuffer()
|
|
|
|
readCounter := readers.NewCountingReader(in)
|
|
var trackingIn io.Reader
|
|
var hasher *hash.MultiHasher
|
|
var options []fs.OpenOption
|
|
if !ci.IgnoreChecksum {
|
|
hashes := hash.NewHashSet(fdst.Hashes().GetOne()) // just pick one hash
|
|
hashOption := &fs.HashesOption{Hashes: hashes}
|
|
options = append(options, hashOption)
|
|
hasher, err = hash.NewMultiHasherTypes(hashes)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
trackingIn = io.TeeReader(readCounter, hasher)
|
|
} else {
|
|
trackingIn = readCounter
|
|
}
|
|
for _, option := range ci.UploadHeaders {
|
|
options = append(options, option)
|
|
}
|
|
if ci.MetadataSet != nil {
|
|
options = append(options, fs.MetadataOption(ci.MetadataSet))
|
|
}
|
|
|
|
compare := func(dst fs.Object) error {
|
|
var sums map[hash.Type]string
|
|
opt := defaultEqualOpt(ctx)
|
|
if hasher != nil {
|
|
// force --checksum on if we have hashes
|
|
opt.checkSum = true
|
|
sums = hasher.Sums()
|
|
}
|
|
src := object.NewStaticObjectInfo(dstFileName, modTime, int64(readCounter.BytesRead()), false, sums, fdst).WithMetadata(meta)
|
|
if !equal(ctx, src, dst, opt) {
|
|
err = fmt.Errorf("corrupted on transfer")
|
|
err = fs.CountError(err)
|
|
fs.Errorf(dst, "%v", err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// check if file small enough for direct upload
|
|
buf := make([]byte, ci.StreamingUploadCutoff)
|
|
if n, err := io.ReadFull(trackingIn, buf); err == io.EOF || err == io.ErrUnexpectedEOF {
|
|
fs.Debugf(fdst, "File to upload is small (%d bytes), uploading instead of streaming", n)
|
|
src := object.NewMemoryObject(dstFileName, modTime, buf[:n]).WithMetadata(meta)
|
|
return Copy(ctx, fdst, nil, dstFileName, src)
|
|
}
|
|
|
|
// Make a new ReadCloser with the bits we've already read
|
|
in = &readCloser{
|
|
Reader: io.MultiReader(bytes.NewReader(buf), trackingIn),
|
|
Closer: in,
|
|
}
|
|
|
|
fStreamTo := fdst
|
|
canStream := fdst.Features().PutStream != nil
|
|
if !canStream {
|
|
fs.Debugf(fdst, "Target remote doesn't support streaming uploads, creating temporary local FS to spool file")
|
|
tmpLocalFs, err := fs.TemporaryLocalFs(ctx)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create temporary local FS to spool file: %w", err)
|
|
}
|
|
defer func() {
|
|
err := Purge(ctx, tmpLocalFs, "")
|
|
if err != nil {
|
|
fs.Infof(tmpLocalFs, "Failed to cleanup temporary FS: %v", err)
|
|
}
|
|
}()
|
|
fStreamTo = tmpLocalFs
|
|
}
|
|
|
|
if SkipDestructive(ctx, dstFileName, "upload from pipe") {
|
|
// prevents "broken pipe" errors
|
|
_, err = io.Copy(io.Discard, in)
|
|
return nil, err
|
|
}
|
|
|
|
objInfo := object.NewStaticObjectInfo(dstFileName, modTime, -1, false, nil, nil).WithMetadata(meta)
|
|
if dst, err = fStreamTo.Features().PutStream(ctx, in, objInfo, options...); err != nil {
|
|
return dst, err
|
|
}
|
|
if err = compare(dst); err != nil {
|
|
return dst, err
|
|
}
|
|
if !canStream {
|
|
// copy dst (which is the local object we have just streamed to) to the remote
|
|
newCtx := ctx
|
|
if ci.Metadata && len(meta) != 0 {
|
|
// If we have metadata and we are setting it then use
|
|
// the --metadataset mechanism to supply it to Copy
|
|
var newCi *fs.ConfigInfo
|
|
newCtx, newCi = fs.AddConfig(ctx)
|
|
if len(newCi.MetadataSet) == 0 {
|
|
newCi.MetadataSet = meta
|
|
} else {
|
|
var newMeta fs.Metadata
|
|
newMeta.Merge(meta)
|
|
newMeta.Merge(newCi.MetadataSet) // --metadata-set takes priority
|
|
newCi.MetadataSet = newMeta
|
|
}
|
|
}
|
|
return Copy(newCtx, fdst, nil, dstFileName, dst)
|
|
}
|
|
return dst, nil
|
|
}
|
|
|
|
// PublicLink adds a "readable by anyone with link" permission on the given file or folder.
|
|
func PublicLink(ctx context.Context, f fs.Fs, remote string, expire fs.Duration, unlink bool) (string, error) {
|
|
doPublicLink := f.Features().PublicLink
|
|
if doPublicLink == nil {
|
|
return "", fmt.Errorf("%v doesn't support public links", f)
|
|
}
|
|
return doPublicLink(ctx, remote, expire, unlink)
|
|
}
|
|
|
|
// Rmdirs removes any empty directories (or directories only
|
|
// containing empty directories) under f, including f.
|
|
//
|
|
// Rmdirs obeys the filters
|
|
func Rmdirs(ctx context.Context, f fs.Fs, dir string, leaveRoot bool) error {
|
|
ci := fs.GetConfig(ctx)
|
|
fi := filter.GetConfig(ctx)
|
|
dirEmpty := make(map[string]bool)
|
|
dirEmpty[dir] = !leaveRoot
|
|
err := walk.Walk(ctx, f, dir, false, ci.MaxDepth, func(dirPath string, entries fs.DirEntries, err error) error {
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
fs.Errorf(f, "Failed to list %q: %v", dirPath, err)
|
|
return nil
|
|
}
|
|
for _, entry := range entries {
|
|
switch x := entry.(type) {
|
|
case fs.Directory:
|
|
// add a new directory as empty
|
|
dir := x.Remote()
|
|
_, found := dirEmpty[dir]
|
|
if !found {
|
|
dirEmpty[dir] = true
|
|
}
|
|
case fs.Object:
|
|
// mark the parents of the file as being non-empty
|
|
dir := x.Remote()
|
|
for dir != "" {
|
|
dir = path.Dir(dir)
|
|
if dir == "." || dir == "/" {
|
|
dir = ""
|
|
}
|
|
empty, found := dirEmpty[dir]
|
|
// End if we reach a directory which is non-empty
|
|
if found && !empty {
|
|
break
|
|
}
|
|
dirEmpty[dir] = false
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return fmt.Errorf("failed to rmdirs: %w", err)
|
|
}
|
|
|
|
// Group directories to delete by level
|
|
var toDelete [][]string
|
|
for dir, empty := range dirEmpty {
|
|
if empty {
|
|
// If a filter matches the directory then that
|
|
// directory is a candidate for deletion
|
|
if fi.IncludeRemote(dir + "/") {
|
|
level := strings.Count(dir, "/") + 1
|
|
// The root directory "" is at the top level
|
|
if dir == "" {
|
|
level = 0
|
|
}
|
|
if len(toDelete) < level+1 {
|
|
toDelete = append(toDelete, make([][]string, level+1-len(toDelete))...)
|
|
}
|
|
toDelete[level] = append(toDelete[level], dir)
|
|
}
|
|
}
|
|
}
|
|
|
|
var (
|
|
errCount = errcount.New()
|
|
)
|
|
// Delete all directories at the same level in parallel
|
|
for level := len(toDelete) - 1; level >= 0; level-- {
|
|
dirs := toDelete[level]
|
|
if len(dirs) == 0 {
|
|
continue
|
|
}
|
|
fs.Debugf(nil, "removing %d level %d directories", len(dirs), level)
|
|
sort.Strings(dirs)
|
|
g, gCtx := errgroup.WithContext(ctx)
|
|
g.SetLimit(ci.Checkers)
|
|
for _, dir := range dirs {
|
|
// End early if error
|
|
if gCtx.Err() != nil {
|
|
break
|
|
}
|
|
dir := dir
|
|
g.Go(func() error {
|
|
err := TryRmdir(gCtx, f, dir)
|
|
if err != nil {
|
|
err = fs.CountError(err)
|
|
fs.Errorf(dir, "Failed to rmdir: %v", err)
|
|
errCount.Add(err)
|
|
}
|
|
return nil // don't return errors, just count them
|
|
})
|
|
}
|
|
err := g.Wait()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return errCount.Err("failed to remove directories")
|
|
}
|
|
|
|
// GetCompareDest sets up --compare-dest
|
|
func GetCompareDest(ctx context.Context) (CompareDest []fs.Fs, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
CompareDest, err = cache.GetArr(ctx, ci.CompareDest)
|
|
if err != nil {
|
|
return nil, fserrors.FatalError(fmt.Errorf("failed to make fs for --compare-dest %q: %w", ci.CompareDest, err))
|
|
}
|
|
return CompareDest, nil
|
|
}
|
|
|
|
// compareDest checks --compare-dest to see if src needs to
|
|
// be copied
|
|
//
|
|
// Returns True if src is in --compare-dest
|
|
func compareDest(ctx context.Context, dst, src fs.Object, CompareDest fs.Fs) (NoNeedTransfer bool, err error) {
|
|
var remote string
|
|
if dst == nil {
|
|
remote = src.Remote()
|
|
} else {
|
|
remote = dst.Remote()
|
|
}
|
|
CompareDestFile, err := CompareDest.NewObject(ctx, remote)
|
|
switch err {
|
|
case fs.ErrorObjectNotFound:
|
|
return false, nil
|
|
case nil:
|
|
break
|
|
default:
|
|
return false, err
|
|
}
|
|
opt := defaultEqualOpt(ctx)
|
|
opt.updateModTime = false
|
|
if equal(ctx, src, CompareDestFile, opt) {
|
|
fs.Debugf(src, "Destination found in --compare-dest, skipping")
|
|
return true, nil
|
|
}
|
|
return false, nil
|
|
}
|
|
|
|
// GetCopyDest sets up --copy-dest
|
|
func GetCopyDest(ctx context.Context, fdst fs.Fs) (CopyDest []fs.Fs, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
CopyDest, err = cache.GetArr(ctx, ci.CopyDest)
|
|
if err != nil {
|
|
return nil, fserrors.FatalError(fmt.Errorf("failed to make fs for --copy-dest %q: %w", ci.CopyDest, err))
|
|
}
|
|
if !SameConfigArr(fdst, CopyDest) {
|
|
return nil, fserrors.FatalError(errors.New("parameter to --copy-dest has to be on the same remote as destination"))
|
|
}
|
|
for _, cf := range CopyDest {
|
|
if cf.Features().Copy == nil {
|
|
return nil, fserrors.FatalError(errors.New("can't use --copy-dest on a remote which doesn't support server side copy"))
|
|
}
|
|
}
|
|
|
|
return CopyDest, nil
|
|
}
|
|
|
|
// copyDest checks --copy-dest to see if src needs to
|
|
// be copied
|
|
//
|
|
// Returns True if src was copied from --copy-dest
|
|
func copyDest(ctx context.Context, fdst fs.Fs, dst, src fs.Object, CopyDest, backupDir fs.Fs) (NoNeedTransfer bool, err error) {
|
|
var remote string
|
|
if dst == nil {
|
|
remote = src.Remote()
|
|
} else {
|
|
remote = dst.Remote()
|
|
}
|
|
CopyDestFile, err := CopyDest.NewObject(ctx, remote)
|
|
switch err {
|
|
case fs.ErrorObjectNotFound:
|
|
return false, nil
|
|
case nil:
|
|
break
|
|
default:
|
|
return false, err
|
|
}
|
|
opt := defaultEqualOpt(ctx)
|
|
opt.updateModTime = false
|
|
if equal(ctx, src, CopyDestFile, opt) {
|
|
if dst == nil || !Equal(ctx, src, dst) {
|
|
if dst != nil && backupDir != nil {
|
|
err = MoveBackupDir(ctx, backupDir, dst)
|
|
if err != nil {
|
|
return false, fmt.Errorf("moving to --backup-dir failed: %w", err)
|
|
}
|
|
// If successful zero out the dstObj as it is no longer there
|
|
dst = nil
|
|
}
|
|
_, err := Copy(ctx, fdst, dst, remote, CopyDestFile)
|
|
if err != nil {
|
|
fs.Errorf(src, "Destination found in --copy-dest, error copying")
|
|
return false, nil
|
|
}
|
|
fs.Debugf(src, "Destination found in --copy-dest, using server-side copy")
|
|
return true, nil
|
|
}
|
|
fs.Debugf(src, "Unchanged skipping")
|
|
return true, nil
|
|
}
|
|
fs.Debugf(src, "Destination not found in --copy-dest")
|
|
return false, nil
|
|
}
|
|
|
|
// CompareOrCopyDest checks --compare-dest and --copy-dest to see if src
|
|
// does not need to be copied
|
|
//
|
|
// Returns True if src does not need to be copied
|
|
func CompareOrCopyDest(ctx context.Context, fdst fs.Fs, dst, src fs.Object, CompareOrCopyDest []fs.Fs, backupDir fs.Fs) (NoNeedTransfer bool, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
if len(ci.CompareDest) > 0 {
|
|
for _, compareF := range CompareOrCopyDest {
|
|
NoNeedTransfer, err := compareDest(ctx, dst, src, compareF)
|
|
if NoNeedTransfer || err != nil {
|
|
return NoNeedTransfer, err
|
|
}
|
|
}
|
|
} else if len(ci.CopyDest) > 0 {
|
|
for _, copyF := range CompareOrCopyDest {
|
|
NoNeedTransfer, err := copyDest(ctx, fdst, dst, src, copyF, backupDir)
|
|
if NoNeedTransfer || err != nil {
|
|
return NoNeedTransfer, err
|
|
}
|
|
}
|
|
}
|
|
return false, nil
|
|
}
|
|
|
|
// NeedTransfer checks to see if src needs to be copied to dst using
|
|
// the current config.
|
|
//
|
|
// Returns a flag which indicates whether the file needs to be
|
|
// transferred or not.
|
|
func NeedTransfer(ctx context.Context, dst, src fs.Object) bool {
|
|
ci := fs.GetConfig(ctx)
|
|
logger, _ := GetLogger(ctx)
|
|
if dst == nil {
|
|
fs.Debugf(src, "Need to transfer - File not found at Destination")
|
|
logger(ctx, MissingOnDst, src, nil, nil)
|
|
return true
|
|
}
|
|
// If we should ignore existing files, don't transfer
|
|
if ci.IgnoreExisting {
|
|
fs.Debugf(src, "Destination exists, skipping")
|
|
logger(ctx, Match, src, dst, nil)
|
|
return false
|
|
}
|
|
// If we should upload unconditionally
|
|
if ci.IgnoreTimes {
|
|
fs.Debugf(src, "Transferring unconditionally as --ignore-times is in use")
|
|
logger(ctx, Differ, src, dst, nil)
|
|
return true
|
|
}
|
|
// If UpdateOlder is in effect, skip if dst is newer than src
|
|
if ci.UpdateOlder {
|
|
srcModTime := src.ModTime(ctx)
|
|
dstModTime := dst.ModTime(ctx)
|
|
dt := dstModTime.Sub(srcModTime)
|
|
// If have a mutually agreed precision then use that
|
|
modifyWindow := fs.GetModifyWindow(ctx, dst.Fs(), src.Fs())
|
|
if modifyWindow == fs.ModTimeNotSupported {
|
|
// Otherwise use 1 second as a safe default as
|
|
// the resolution of the time a file was
|
|
// uploaded.
|
|
modifyWindow = time.Second
|
|
}
|
|
switch {
|
|
case dt >= modifyWindow:
|
|
fs.Debugf(src, "Destination is newer than source, skipping")
|
|
logger(ctx, Match, src, dst, nil)
|
|
return false
|
|
case dt <= -modifyWindow:
|
|
// force --checksum on for the check and do update modtimes by default
|
|
opt := defaultEqualOpt(ctx)
|
|
opt.forceModTimeMatch = true
|
|
if equal(ctx, src, dst, opt) {
|
|
fs.Debugf(src, "Unchanged skipping")
|
|
return false
|
|
}
|
|
default:
|
|
// Do a size only compare unless --checksum is set
|
|
opt := defaultEqualOpt(ctx)
|
|
opt.sizeOnly = !ci.CheckSum
|
|
if equal(ctx, src, dst, opt) {
|
|
fs.Debugf(src, "Destination mod time is within %v of source and files identical, skipping", modifyWindow)
|
|
return false
|
|
}
|
|
fs.Debugf(src, "Destination mod time is within %v of source but files differ, transferring", modifyWindow)
|
|
}
|
|
} else {
|
|
// Check to see if changed or not
|
|
equalFn, ok := ctx.Value(equalFnKey).(EqualFn)
|
|
if ok {
|
|
return !equalFn(ctx, src, dst)
|
|
}
|
|
if Equal(ctx, src, dst) && !SameObject(src, dst) {
|
|
fs.Debugf(src, "Unchanged skipping")
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// RcatSize reads data from the Reader until EOF and uploads it to a file on remote.
|
|
// Pass in size >=0 if known, <0 if not known
|
|
func RcatSize(ctx context.Context, fdst fs.Fs, dstFileName string, in io.ReadCloser, size int64, modTime time.Time, meta fs.Metadata) (dst fs.Object, err error) {
|
|
var obj fs.Object
|
|
|
|
if size >= 0 {
|
|
var err error
|
|
// Size known use Put
|
|
tr := accounting.Stats(ctx).NewTransferRemoteSize(dstFileName, size, nil, fdst)
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
body := io.NopCloser(in) // we let the server close the body
|
|
in := tr.Account(ctx, body) // account the transfer (no buffering)
|
|
|
|
if SkipDestructive(ctx, dstFileName, "upload from pipe") {
|
|
// prevents "broken pipe" errors
|
|
_, err = io.Copy(io.Discard, in)
|
|
return nil, err
|
|
}
|
|
|
|
info := object.NewStaticObjectInfo(dstFileName, modTime, size, true, nil, fdst).WithMetadata(meta)
|
|
obj, err = fdst.Put(ctx, in, info)
|
|
if err != nil {
|
|
fs.Errorf(dstFileName, "Post request put error: %v", err)
|
|
|
|
return nil, err
|
|
}
|
|
} else {
|
|
// Size unknown use Rcat
|
|
obj, err = Rcat(ctx, fdst, dstFileName, in, modTime, meta)
|
|
if err != nil {
|
|
fs.Errorf(dstFileName, "Post request rcat error: %v", err)
|
|
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
return obj, nil
|
|
}
|
|
|
|
// copyURLFunc is called from CopyURLFn
|
|
type copyURLFunc func(ctx context.Context, dstFileName string, in io.ReadCloser, size int64, modTime time.Time) (err error)
|
|
|
|
// copyURLFn copies the data from the url to the function supplied
|
|
func copyURLFn(ctx context.Context, dstFileName string, url string, autoFilename, dstFileNameFromHeader bool, fn copyURLFunc) (err error) {
|
|
client := fshttp.NewClient(ctx)
|
|
resp, err := client.Get(url)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer fs.CheckClose(resp.Body, &err)
|
|
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
|
|
return fmt.Errorf("CopyURL failed: %s", resp.Status)
|
|
}
|
|
modTime, err := http.ParseTime(resp.Header.Get("Last-Modified"))
|
|
if err != nil {
|
|
modTime = time.Now()
|
|
}
|
|
if autoFilename {
|
|
if dstFileNameFromHeader {
|
|
_, params, err := mime.ParseMediaType(resp.Header.Get("Content-Disposition"))
|
|
headerFilename := path.Base(strings.Replace(params["filename"], "\\", "/", -1))
|
|
if err != nil || headerFilename == "" {
|
|
return fmt.Errorf("CopyURL failed: filename not found in the Content-Disposition header")
|
|
}
|
|
fs.Debugf(headerFilename, "filename found in Content-Disposition header.")
|
|
return fn(ctx, headerFilename, resp.Body, resp.ContentLength, modTime)
|
|
}
|
|
|
|
dstFileName = path.Base(resp.Request.URL.Path)
|
|
if dstFileName == "." || dstFileName == "/" {
|
|
return fmt.Errorf("CopyURL failed: file name wasn't found in url")
|
|
}
|
|
fs.Debugf(dstFileName, "File name found in url")
|
|
}
|
|
return fn(ctx, dstFileName, resp.Body, resp.ContentLength, modTime)
|
|
}
|
|
|
|
// CopyURL copies the data from the url to (fdst, dstFileName)
|
|
func CopyURL(ctx context.Context, fdst fs.Fs, dstFileName string, url string, autoFilename, dstFileNameFromHeader bool, noClobber bool) (dst fs.Object, err error) {
|
|
|
|
err = copyURLFn(ctx, dstFileName, url, autoFilename, dstFileNameFromHeader, func(ctx context.Context, dstFileName string, in io.ReadCloser, size int64, modTime time.Time) (err error) {
|
|
if noClobber {
|
|
_, err = fdst.NewObject(ctx, dstFileName)
|
|
if err == nil {
|
|
return errors.New("CopyURL failed: file already exist")
|
|
}
|
|
}
|
|
dst, err = RcatSize(ctx, fdst, dstFileName, in, size, modTime, nil)
|
|
return err
|
|
})
|
|
return dst, err
|
|
}
|
|
|
|
// CopyURLToWriter copies the data from the url to the io.Writer supplied
|
|
func CopyURLToWriter(ctx context.Context, url string, out io.Writer) (err error) {
|
|
return copyURLFn(ctx, "", url, false, false, func(ctx context.Context, dstFileName string, in io.ReadCloser, size int64, modTime time.Time) (err error) {
|
|
_, err = io.Copy(out, in)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// BackupDir returns the correctly configured --backup-dir
|
|
func BackupDir(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, srcFileName string) (backupDir fs.Fs, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
if ci.BackupDir != "" {
|
|
backupDir, err = cache.Get(ctx, ci.BackupDir)
|
|
if err != nil {
|
|
return nil, fserrors.FatalError(fmt.Errorf("failed to make fs for --backup-dir %q: %w", ci.BackupDir, err))
|
|
}
|
|
if !SameConfig(fdst, backupDir) {
|
|
return nil, fserrors.FatalError(errors.New("parameter to --backup-dir has to be on the same remote as destination"))
|
|
}
|
|
if srcFileName == "" {
|
|
if OverlappingFilterCheck(ctx, backupDir, fdst) {
|
|
return nil, fserrors.FatalError(errors.New("destination and parameter to --backup-dir mustn't overlap"))
|
|
}
|
|
if OverlappingFilterCheck(ctx, backupDir, fsrc) {
|
|
return nil, fserrors.FatalError(errors.New("source and parameter to --backup-dir mustn't overlap"))
|
|
}
|
|
} else {
|
|
if ci.Suffix == "" {
|
|
if SameDir(fdst, backupDir) {
|
|
return nil, fserrors.FatalError(errors.New("destination and parameter to --backup-dir mustn't be the same"))
|
|
}
|
|
if SameDir(fsrc, backupDir) {
|
|
return nil, fserrors.FatalError(errors.New("source and parameter to --backup-dir mustn't be the same"))
|
|
}
|
|
}
|
|
}
|
|
} else if ci.Suffix != "" {
|
|
// --backup-dir is not set but --suffix is - use the destination as the backupDir
|
|
backupDir = fdst
|
|
} else {
|
|
return nil, fserrors.FatalError(errors.New("internal error: BackupDir called when --backup-dir and --suffix both empty"))
|
|
}
|
|
if !CanServerSideMove(backupDir) {
|
|
return nil, fserrors.FatalError(errors.New("can't use --backup-dir on a remote which doesn't support server-side move or copy"))
|
|
}
|
|
return backupDir, nil
|
|
}
|
|
|
|
// MoveBackupDir moves a file to the backup dir
|
|
func MoveBackupDir(ctx context.Context, backupDir fs.Fs, dst fs.Object) (err error) {
|
|
remoteWithSuffix := SuffixName(ctx, dst.Remote())
|
|
overwritten, _ := backupDir.NewObject(ctx, remoteWithSuffix)
|
|
_, err = Move(ctx, backupDir, overwritten, remoteWithSuffix, dst)
|
|
return err
|
|
}
|
|
|
|
// needsMoveCaseInsensitive returns true if moveCaseInsensitive is needed
|
|
func needsMoveCaseInsensitive(fdst fs.Fs, fsrc fs.Fs, dstFileName string, srcFileName string, cp bool) bool {
|
|
dstFilePath := path.Join(fdst.Root(), dstFileName)
|
|
srcFilePath := path.Join(fsrc.Root(), srcFileName)
|
|
return !cp && fdst.Name() == fsrc.Name() && fdst.Features().CaseInsensitive && dstFileName != srcFileName && strings.EqualFold(dstFilePath, srcFilePath)
|
|
}
|
|
|
|
// Special case for changing case of a file on a case insensitive remote
|
|
// This will move the file to a temporary name then
|
|
// move it back to the intended destination. This is required
|
|
// to avoid issues with certain remotes and avoid file deletion.
|
|
// returns nil, nil if !needsMoveCaseInsensitive.
|
|
// this does not account a transfer -- the caller should do that if desired.
|
|
func moveCaseInsensitive(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName string, srcFileName string, cp bool, srcObj fs.Object) (newDst fs.Object, err error) {
|
|
if !needsMoveCaseInsensitive(fdst, fsrc, dstFileName, srcFileName, cp) {
|
|
return nil, nil
|
|
}
|
|
logger, _ := GetLogger(ctx)
|
|
|
|
// Choose operations
|
|
Op := MoveTransfer
|
|
if cp {
|
|
Op = Copy
|
|
}
|
|
|
|
if SkipDestructive(ctx, srcFileName, "rename to "+dstFileName) {
|
|
// avoid fatalpanic on --dry-run (trying to access non-existent tmpObj)
|
|
return nil, nil
|
|
}
|
|
// Create random name to temporarily move file to
|
|
tmpObjName := dstFileName + "-rclone-move-" + random.String(8)
|
|
tmpObjFail, err := fdst.NewObject(ctx, tmpObjName)
|
|
if err != fs.ErrorObjectNotFound {
|
|
if err == nil {
|
|
logger(ctx, TransferError, nil, tmpObjFail, err)
|
|
return nil, errors.New("found an already existing file with a randomly generated name. Try the operation again")
|
|
}
|
|
logger(ctx, TransferError, nil, tmpObjFail, err)
|
|
return nil, fmt.Errorf("error while attempting to move file to a temporary location: %w", err)
|
|
}
|
|
fs.Debugf(srcObj, "moving to %v", tmpObjName)
|
|
tmpObj, err := Op(ctx, fdst, nil, tmpObjName, srcObj)
|
|
if err != nil {
|
|
logger(ctx, TransferError, srcObj, tmpObj, err)
|
|
return nil, fmt.Errorf("error while moving file to temporary location: %w", err)
|
|
}
|
|
fs.Debugf(srcObj, "moving to %v", dstFileName)
|
|
newDst, err = Op(ctx, fdst, nil, dstFileName, tmpObj)
|
|
logger(ctx, MissingOnDst, tmpObj, nil, err)
|
|
return newDst, err
|
|
}
|
|
|
|
// moveOrCopyFile moves or copies a single file possibly to a new name
|
|
func moveOrCopyFile(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName string, srcFileName string, cp bool) (err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
logger, usingLogger := GetLogger(ctx)
|
|
dstFilePath := path.Join(fdst.Root(), dstFileName)
|
|
srcFilePath := path.Join(fsrc.Root(), srcFileName)
|
|
if fdst.Name() == fsrc.Name() && dstFilePath == srcFilePath {
|
|
fs.Debugf(fdst, "don't need to copy/move %s, it is already at target location", dstFileName)
|
|
if usingLogger {
|
|
srcObj, _ := fsrc.NewObject(ctx, srcFileName)
|
|
dstObj, _ := fsrc.NewObject(ctx, dstFileName)
|
|
logger(ctx, Match, srcObj, dstObj, nil)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Choose operations
|
|
Op := MoveTransfer
|
|
if cp {
|
|
Op = Copy
|
|
}
|
|
|
|
// Find src object
|
|
srcObj, err := fsrc.NewObject(ctx, srcFileName)
|
|
if err != nil {
|
|
logger(ctx, TransferError, srcObj, nil, err)
|
|
return err
|
|
}
|
|
|
|
// Find dst object if it exists
|
|
var dstObj fs.Object
|
|
if !ci.NoCheckDest {
|
|
dstObj, err = fdst.NewObject(ctx, dstFileName)
|
|
if errors.Is(err, fs.ErrorObjectNotFound) {
|
|
dstObj = nil
|
|
} else if err != nil {
|
|
logger(ctx, TransferError, nil, dstObj, err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
// Special case for changing case of a file on a case insensitive remote
|
|
// This will move the file to a temporary name then
|
|
// move it back to the intended destination. This is required
|
|
// to avoid issues with certain remotes and avoid file deletion.
|
|
if needsMoveCaseInsensitive(fdst, fsrc, dstFileName, srcFileName, cp) {
|
|
tr := accounting.Stats(ctx).NewTransfer(srcObj, fdst)
|
|
defer func() {
|
|
tr.Done(ctx, err)
|
|
}()
|
|
_, err = moveCaseInsensitive(ctx, fdst, fsrc, dstFileName, srcFileName, cp, srcObj)
|
|
return err
|
|
}
|
|
|
|
var backupDir fs.Fs
|
|
var copyDestDir []fs.Fs
|
|
if ci.BackupDir != "" || ci.Suffix != "" {
|
|
backupDir, err = BackupDir(ctx, fdst, fsrc, srcFileName)
|
|
if err != nil {
|
|
return fmt.Errorf("creating Fs for --backup-dir failed: %w", err)
|
|
}
|
|
}
|
|
if len(ci.CompareDest) > 0 {
|
|
copyDestDir, err = GetCompareDest(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else if len(ci.CopyDest) > 0 {
|
|
copyDestDir, err = GetCopyDest(ctx, fdst)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
needTransfer := NeedTransfer(ctx, dstObj, srcObj)
|
|
if needTransfer {
|
|
NoNeedTransfer, err := CompareOrCopyDest(ctx, fdst, dstObj, srcObj, copyDestDir, backupDir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if NoNeedTransfer {
|
|
needTransfer = false
|
|
}
|
|
}
|
|
if needTransfer {
|
|
// If destination already exists, then we must move it into --backup-dir if required
|
|
if dstObj != nil && backupDir != nil {
|
|
err = MoveBackupDir(ctx, backupDir, dstObj)
|
|
if err != nil {
|
|
logger(ctx, TransferError, dstObj, nil, err)
|
|
return fmt.Errorf("moving to --backup-dir failed: %w", err)
|
|
}
|
|
// If successful zero out the dstObj as it is no longer there
|
|
logger(ctx, MissingOnDst, dstObj, nil, nil)
|
|
dstObj = nil
|
|
}
|
|
|
|
_, err = Op(ctx, fdst, dstObj, dstFileName, srcObj)
|
|
} else {
|
|
if !cp {
|
|
if ci.IgnoreExisting {
|
|
fs.Debugf(srcObj, "Not removing source file as destination file exists and --ignore-existing is set")
|
|
logger(ctx, Match, srcObj, dstObj, nil)
|
|
} else if !SameObject(srcObj, dstObj) {
|
|
err = DeleteFile(ctx, srcObj)
|
|
logger(ctx, Differ, srcObj, dstObj, nil)
|
|
}
|
|
}
|
|
}
|
|
return err
|
|
}
|
|
|
|
// MoveFile moves a single file possibly to a new name
|
|
//
|
|
// This is treated as a transfer.
|
|
func MoveFile(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName string, srcFileName string) (err error) {
|
|
return moveOrCopyFile(ctx, fdst, fsrc, dstFileName, srcFileName, false)
|
|
}
|
|
|
|
// SetTier changes tier of object in remote
|
|
func SetTier(ctx context.Context, fsrc fs.Fs, tier string) error {
|
|
return ListFn(ctx, fsrc, func(o fs.Object) {
|
|
objImpl, ok := o.(fs.SetTierer)
|
|
if !ok {
|
|
fs.Errorf(fsrc, "Remote object does not implement SetTier")
|
|
return
|
|
}
|
|
err := objImpl.SetTier(tier)
|
|
if err != nil {
|
|
fs.Errorf(fsrc, "Failed to do SetTier, %v", err)
|
|
}
|
|
})
|
|
}
|
|
|
|
// SetTierFile changes tier of a single file in remote
|
|
func SetTierFile(ctx context.Context, o fs.Object, tier string) error {
|
|
do, ok := o.(fs.SetTierer)
|
|
if !ok {
|
|
return errors.New("remote object does not implement SetTier")
|
|
}
|
|
err := do.SetTier(tier)
|
|
if err != nil {
|
|
fs.Errorf(o, "Failed to do SetTier, %v", err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// TouchDir touches every file in directory with time t
|
|
func TouchDir(ctx context.Context, f fs.Fs, remote string, t time.Time, recursive bool) error {
|
|
return walk.ListR(ctx, f, remote, false, ConfigMaxDepth(ctx, recursive), walk.ListObjects, func(entries fs.DirEntries) error {
|
|
entries.ForObject(func(o fs.Object) {
|
|
if !SkipDestructive(ctx, o, "touch") {
|
|
fs.Debugf(f, "Touching %q", o.Remote())
|
|
err := o.SetModTime(ctx, t)
|
|
if err != nil {
|
|
err = fmt.Errorf("failed to touch: %w", err)
|
|
err = fs.CountError(err)
|
|
fs.Errorf(o, "%v", err)
|
|
}
|
|
}
|
|
})
|
|
return nil
|
|
})
|
|
}
|
|
|
|
// ListFormat defines files information print format
|
|
type ListFormat struct {
|
|
separator string
|
|
dirSlash bool
|
|
absolute bool
|
|
output []func(entry *ListJSONItem) string
|
|
csv *csv.Writer
|
|
buf bytes.Buffer
|
|
}
|
|
|
|
// SetSeparator changes separator in struct
|
|
func (l *ListFormat) SetSeparator(separator string) {
|
|
l.separator = separator
|
|
}
|
|
|
|
// SetDirSlash defines if slash should be printed
|
|
func (l *ListFormat) SetDirSlash(dirSlash bool) {
|
|
l.dirSlash = dirSlash
|
|
}
|
|
|
|
// SetAbsolute prints a leading slash in front of path names
|
|
func (l *ListFormat) SetAbsolute(absolute bool) {
|
|
l.absolute = absolute
|
|
}
|
|
|
|
// SetCSV defines if the output should be csv
|
|
//
|
|
// Note that you should call SetSeparator before this if you want a
|
|
// custom separator
|
|
func (l *ListFormat) SetCSV(useCSV bool) {
|
|
if useCSV {
|
|
l.csv = csv.NewWriter(&l.buf)
|
|
if l.separator != "" {
|
|
l.csv.Comma = []rune(l.separator)[0]
|
|
}
|
|
} else {
|
|
l.csv = nil
|
|
}
|
|
}
|
|
|
|
// SetOutput sets functions used to create files information
|
|
func (l *ListFormat) SetOutput(output []func(entry *ListJSONItem) string) {
|
|
l.output = output
|
|
}
|
|
|
|
// AddModTime adds file's Mod Time to output
|
|
func (l *ListFormat) AddModTime(timeFormat string) {
|
|
switch timeFormat {
|
|
case "":
|
|
timeFormat = "2006-01-02 15:04:05"
|
|
case "Layout":
|
|
timeFormat = time.Layout
|
|
case "ANSIC":
|
|
timeFormat = time.ANSIC
|
|
case "UnixDate":
|
|
timeFormat = time.UnixDate
|
|
case "RubyDate":
|
|
timeFormat = time.RubyDate
|
|
case "RFC822":
|
|
timeFormat = time.RFC822
|
|
case "RFC822Z":
|
|
timeFormat = time.RFC822Z
|
|
case "RFC850":
|
|
timeFormat = time.RFC850
|
|
case "RFC1123":
|
|
timeFormat = time.RFC1123
|
|
case "RFC1123Z":
|
|
timeFormat = time.RFC1123Z
|
|
case "RFC3339":
|
|
timeFormat = time.RFC3339
|
|
case "RFC3339Nano":
|
|
timeFormat = time.RFC3339Nano
|
|
case "Kitchen":
|
|
timeFormat = time.Kitchen
|
|
case "Stamp":
|
|
timeFormat = time.Stamp
|
|
case "StampMilli":
|
|
timeFormat = time.StampMilli
|
|
case "StampMicro":
|
|
timeFormat = time.StampMicro
|
|
case "StampNano":
|
|
timeFormat = time.StampNano
|
|
case "DateTime":
|
|
// timeFormat = time.DateTime // missing in go1.19
|
|
timeFormat = "2006-01-02 15:04:05"
|
|
case "DateOnly":
|
|
// timeFormat = time.DateOnly // missing in go1.19
|
|
timeFormat = "2006-01-02"
|
|
case "TimeOnly":
|
|
// timeFormat = time.TimeOnly // missing in go1.19
|
|
timeFormat = "15:04:05"
|
|
}
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return entry.ModTime.When.Local().Format(timeFormat)
|
|
})
|
|
}
|
|
|
|
// AddSize adds file's size to output
|
|
func (l *ListFormat) AddSize() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return strconv.FormatInt(entry.Size, 10)
|
|
})
|
|
}
|
|
|
|
// normalisePath makes sure the path has the correct slashes for the current mode
|
|
func (l *ListFormat) normalisePath(entry *ListJSONItem, remote string) string {
|
|
if l.absolute && !strings.HasPrefix(remote, "/") {
|
|
remote = "/" + remote
|
|
}
|
|
if entry.IsDir && l.dirSlash {
|
|
remote += "/"
|
|
}
|
|
return remote
|
|
}
|
|
|
|
// AddPath adds path to file to output
|
|
func (l *ListFormat) AddPath() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return l.normalisePath(entry, entry.Path)
|
|
})
|
|
}
|
|
|
|
// AddEncrypted adds the encrypted path to file to output
|
|
func (l *ListFormat) AddEncrypted() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return l.normalisePath(entry, entry.Encrypted)
|
|
})
|
|
}
|
|
|
|
// AddHash adds the hash of the type given to the output
|
|
func (l *ListFormat) AddHash(ht hash.Type) {
|
|
hashName := ht.String()
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
if entry.IsDir {
|
|
return ""
|
|
}
|
|
return entry.Hashes[hashName]
|
|
})
|
|
}
|
|
|
|
// AddID adds file's ID to the output if known
|
|
func (l *ListFormat) AddID() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return entry.ID
|
|
})
|
|
}
|
|
|
|
// AddOrigID adds file's Original ID to the output if known
|
|
func (l *ListFormat) AddOrigID() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return entry.OrigID
|
|
})
|
|
}
|
|
|
|
// AddTier adds file's Tier to the output if known
|
|
func (l *ListFormat) AddTier() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return entry.Tier
|
|
})
|
|
}
|
|
|
|
// AddMimeType adds file's MimeType to the output if known
|
|
func (l *ListFormat) AddMimeType() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
return entry.MimeType
|
|
})
|
|
}
|
|
|
|
// AddMetadata adds file's Metadata to the output if known
|
|
func (l *ListFormat) AddMetadata() {
|
|
l.AppendOutput(func(entry *ListJSONItem) string {
|
|
metadata := entry.Metadata
|
|
if metadata == nil {
|
|
metadata = make(fs.Metadata)
|
|
}
|
|
out, err := json.Marshal(metadata)
|
|
if err != nil {
|
|
return fmt.Sprintf("Failed to read metadata: %v", err.Error())
|
|
}
|
|
return string(out)
|
|
})
|
|
}
|
|
|
|
// AppendOutput adds string generated by specific function to printed output
|
|
func (l *ListFormat) AppendOutput(functionToAppend func(item *ListJSONItem) string) {
|
|
l.output = append(l.output, functionToAppend)
|
|
}
|
|
|
|
// Format prints information about the DirEntry in the format defined
|
|
func (l *ListFormat) Format(entry *ListJSONItem) (result string) {
|
|
var out []string
|
|
for _, fun := range l.output {
|
|
out = append(out, fun(entry))
|
|
}
|
|
if l.csv != nil {
|
|
l.buf.Reset()
|
|
_ = l.csv.Write(out) // can't fail writing to bytes.Buffer
|
|
l.csv.Flush()
|
|
result = strings.TrimRight(l.buf.String(), "\n")
|
|
} else {
|
|
result = strings.Join(out, l.separator)
|
|
}
|
|
return result
|
|
}
|
|
|
|
// FormatForLSFPrecision Returns a time format for the given precision
|
|
func FormatForLSFPrecision(precision time.Duration) string {
|
|
switch {
|
|
case precision <= time.Nanosecond:
|
|
return "2006-01-02 15:04:05.000000000"
|
|
case precision <= 10*time.Nanosecond:
|
|
return "2006-01-02 15:04:05.00000000"
|
|
case precision <= 100*time.Nanosecond:
|
|
return "2006-01-02 15:04:05.0000000"
|
|
case precision <= time.Microsecond:
|
|
return "2006-01-02 15:04:05.000000"
|
|
case precision <= 10*time.Microsecond:
|
|
return "2006-01-02 15:04:05.00000"
|
|
case precision <= 100*time.Microsecond:
|
|
return "2006-01-02 15:04:05.0000"
|
|
case precision <= time.Millisecond:
|
|
return "2006-01-02 15:04:05.000"
|
|
case precision <= 10*time.Millisecond:
|
|
return "2006-01-02 15:04:05.00"
|
|
case precision <= 100*time.Millisecond:
|
|
return "2006-01-02 15:04:05.0"
|
|
}
|
|
return "2006-01-02 15:04:05"
|
|
}
|
|
|
|
// DirMove renames srcRemote to dstRemote
|
|
//
|
|
// It does this by loading the directory tree into memory (using ListR
|
|
// if available) and doing renames in parallel.
|
|
func DirMove(ctx context.Context, f fs.Fs, srcRemote, dstRemote string) (err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
|
|
if SkipDestructive(ctx, srcRemote, "dirMove") {
|
|
accounting.Stats(ctx).Renames(1)
|
|
return nil
|
|
}
|
|
|
|
// Use DirMove if possible
|
|
if doDirMove := f.Features().DirMove; doDirMove != nil {
|
|
err = doDirMove(ctx, f, srcRemote, dstRemote)
|
|
if err == nil {
|
|
accounting.Stats(ctx).Renames(1)
|
|
}
|
|
if err != fs.ErrorCantDirMove && err != fs.ErrorDirExists {
|
|
return err
|
|
}
|
|
fs.Infof(f, "Can't DirMove - falling back to file moves: %v", err)
|
|
}
|
|
|
|
// Load the directory tree into memory
|
|
tree, err := walk.NewDirTree(ctx, f, srcRemote, true, -1)
|
|
if err != nil {
|
|
return fmt.Errorf("RenameDir tree walk: %w", err)
|
|
}
|
|
|
|
// Get the directories in sorted order
|
|
dirs := tree.Dirs()
|
|
|
|
// Make the destination directories - must be done in order not in parallel
|
|
for _, dir := range dirs {
|
|
dstPath := dstRemote + dir[len(srcRemote):]
|
|
err := f.Mkdir(ctx, dstPath)
|
|
if err != nil {
|
|
return fmt.Errorf("RenameDir mkdir: %w", err)
|
|
}
|
|
}
|
|
|
|
// Rename the files in parallel
|
|
type rename struct {
|
|
o fs.Object
|
|
newPath string
|
|
}
|
|
renames := make(chan rename, ci.Checkers)
|
|
g, gCtx := errgroup.WithContext(context.Background())
|
|
for i := 0; i < ci.Checkers; i++ {
|
|
g.Go(func() error {
|
|
for job := range renames {
|
|
dstOverwritten, _ := f.NewObject(gCtx, job.newPath)
|
|
_, err := Move(gCtx, f, dstOverwritten, job.newPath, job.o)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
select {
|
|
case <-gCtx.Done():
|
|
return gCtx.Err()
|
|
default:
|
|
}
|
|
|
|
}
|
|
return nil
|
|
})
|
|
}
|
|
for dir, entries := range tree {
|
|
dstPath := dstRemote + dir[len(srcRemote):]
|
|
for _, entry := range entries {
|
|
if o, ok := entry.(fs.Object); ok {
|
|
renames <- rename{o, path.Join(dstPath, path.Base(o.Remote()))}
|
|
}
|
|
}
|
|
}
|
|
close(renames)
|
|
err = g.Wait()
|
|
if err != nil {
|
|
return fmt.Errorf("RenameDir renames: %w", err)
|
|
}
|
|
|
|
// Remove the source directories in reverse order
|
|
for i := len(dirs) - 1; i >= 0; i-- {
|
|
err := f.Rmdir(ctx, dirs[i])
|
|
if err != nil {
|
|
return fmt.Errorf("RenameDir rmdir: %w", err)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// DirMoveCaseInsensitive does DirMove in two steps (to temp name, then real name)
|
|
// which is necessary for some case-insensitive backends
|
|
func DirMoveCaseInsensitive(ctx context.Context, f fs.Fs, srcRemote, dstRemote string) (err error) {
|
|
tmpDstRemote := dstRemote + "-rclone-move-" + random.String(8)
|
|
err = DirMove(ctx, f, srcRemote, tmpDstRemote)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return DirMove(ctx, f, tmpDstRemote, dstRemote)
|
|
}
|
|
|
|
// FsInfo provides information about a remote
|
|
type FsInfo struct {
|
|
// Name of the remote (as passed into NewFs)
|
|
Name string
|
|
|
|
// Root of the remote (as passed into NewFs)
|
|
Root string
|
|
|
|
// String returns a description of the FS
|
|
String string
|
|
|
|
// Precision of the ModTimes in this Fs in Nanoseconds
|
|
Precision time.Duration
|
|
|
|
// Returns the supported hash types of the filesystem
|
|
Hashes []string
|
|
|
|
// Features returns the optional features of this Fs
|
|
Features map[string]bool
|
|
|
|
// MetadataInfo returns info about the metadata for this backend
|
|
MetadataInfo *fs.MetadataInfo
|
|
}
|
|
|
|
// GetFsInfo gets the information (FsInfo) about a given Fs
|
|
func GetFsInfo(f fs.Fs) *FsInfo {
|
|
features := f.Features()
|
|
info := &FsInfo{
|
|
Name: f.Name(),
|
|
Root: f.Root(),
|
|
String: f.String(),
|
|
Precision: f.Precision(),
|
|
Hashes: make([]string, 0, 4),
|
|
Features: features.Enabled(),
|
|
MetadataInfo: nil,
|
|
}
|
|
for _, hashType := range f.Hashes().Array() {
|
|
info.Hashes = append(info.Hashes, hashType.String())
|
|
}
|
|
fsInfo, _, _, _, err := fs.ParseRemote(fs.ConfigString(f))
|
|
if err == nil && fsInfo != nil && fsInfo.MetadataInfo != nil {
|
|
info.MetadataInfo = fsInfo.MetadataInfo
|
|
}
|
|
return info
|
|
}
|
|
|
|
var (
|
|
interactiveMu sync.Mutex // protects the following variables
|
|
skipped = map[string]bool{}
|
|
)
|
|
|
|
// skipDestructiveChoose asks the user which action to take
|
|
//
|
|
// Call with interactiveMu held
|
|
func skipDestructiveChoose(ctx context.Context, subject interface{}, action string) (skip bool) {
|
|
// Lock the StdoutMutex - must not call fs.Log anything
|
|
// otherwise it will deadlock with --interactive --progress
|
|
StdoutMutex.Lock()
|
|
|
|
fmt.Printf("\nrclone: %s \"%v\"?\n", action, subject)
|
|
i := config.CommandDefault([]string{
|
|
"yYes, this is OK",
|
|
"nNo, skip this",
|
|
fmt.Sprintf("sSkip all %s operations with no more questions", action),
|
|
fmt.Sprintf("!Do all %s operations with no more questions", action),
|
|
"qExit rclone now.",
|
|
}, 0)
|
|
|
|
StdoutMutex.Unlock()
|
|
|
|
switch i {
|
|
case 'y':
|
|
skip = false
|
|
case 'n':
|
|
skip = true
|
|
case 's':
|
|
skip = true
|
|
skipped[action] = true
|
|
fs.Logf(nil, "Skipping all %s operations from now on without asking", action)
|
|
case '!':
|
|
skip = false
|
|
skipped[action] = false
|
|
fs.Logf(nil, "Doing all %s operations from now on without asking", action)
|
|
case 'q':
|
|
fs.Logf(nil, "Quitting rclone now")
|
|
atexit.Run()
|
|
os.Exit(0)
|
|
default:
|
|
skip = true
|
|
fs.Errorf(nil, "Bad choice %c", i)
|
|
}
|
|
return skip
|
|
}
|
|
|
|
// SkipDestructive should be called whenever rclone is about to do an destructive operation.
|
|
//
|
|
// It will check the --dry-run flag and it will ask the user if the --interactive flag is set.
|
|
//
|
|
// subject should be the object or directory in use
|
|
//
|
|
// action should be a descriptive word or short phrase
|
|
//
|
|
// Together they should make sense in this sentence: "Rclone is about
|
|
// to action subject".
|
|
func SkipDestructive(ctx context.Context, subject interface{}, action string) (skip bool) {
|
|
var flag string
|
|
ci := fs.GetConfig(ctx)
|
|
switch {
|
|
case ci.DryRun:
|
|
flag = "--dry-run"
|
|
skip = true
|
|
case ci.Interactive:
|
|
flag = "--interactive"
|
|
interactiveMu.Lock()
|
|
defer interactiveMu.Unlock()
|
|
var found bool
|
|
skip, found = skipped[action]
|
|
if !found {
|
|
skip = skipDestructiveChoose(ctx, subject, action)
|
|
}
|
|
default:
|
|
return false
|
|
}
|
|
if skip {
|
|
size := int64(-1)
|
|
if do, ok := subject.(interface{ Size() int64 }); ok {
|
|
size = do.Size()
|
|
}
|
|
if size >= 0 {
|
|
fs.Logf(subject, "Skipped %s as %s is set (size %v)", fs.LogValue("skipped", action), flag, fs.LogValue("size", fs.SizeSuffix(size)))
|
|
} else {
|
|
fs.Logf(subject, "Skipped %s as %s is set", fs.LogValue("skipped", action), flag)
|
|
}
|
|
}
|
|
return skip
|
|
}
|
|
|
|
// Return the best way of describing the directory for the logs
|
|
func dirName(f fs.Fs, dst fs.Directory, dir string) any {
|
|
if dst != nil {
|
|
if dst.Remote() != "" {
|
|
return dst
|
|
}
|
|
// Root is described as the Fs
|
|
return f
|
|
}
|
|
if dir != "" {
|
|
return dir
|
|
}
|
|
// Root is described as the Fs
|
|
return f
|
|
}
|
|
|
|
// CopyDirMetadata copies the src directory to dst or f if nil. If dst is nil then it uses
|
|
// dir as the name of the new directory.
|
|
//
|
|
// It returns the destination directory if possible. Note that this may
|
|
// be nil.
|
|
func CopyDirMetadata(ctx context.Context, f fs.Fs, dst fs.Directory, dir string, src fs.Directory) (newDst fs.Directory, err error) {
|
|
ci := fs.GetConfig(ctx)
|
|
logName := dirName(f, dst, dir)
|
|
if SkipDestructive(ctx, logName, "update directory metadata") {
|
|
return nil, nil
|
|
}
|
|
|
|
// Options for the directory metadata
|
|
options := []fs.OpenOption{}
|
|
if ci.MetadataSet != nil {
|
|
options = append(options, fs.MetadataOption(ci.MetadataSet))
|
|
}
|
|
|
|
// Read metadata from src and add options and use metadata mapper
|
|
metadata, err := fs.GetMetadataOptions(ctx, f, src, options)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Fall back to ModTime if metadata not available
|
|
if metadata == nil {
|
|
metadata = fs.Metadata{}
|
|
}
|
|
if metadata["mtime"] == "" {
|
|
metadata["mtime"] = src.ModTime(ctx).Format(time.RFC3339Nano)
|
|
}
|
|
|
|
// Now set the metadata
|
|
if dst == nil {
|
|
do := f.Features().MkdirMetadata
|
|
if do == nil {
|
|
return nil, fmt.Errorf("internal error: expecting %v to have MkdirMetadata method: %w", f, fs.ErrorNotImplemented)
|
|
}
|
|
newDst, err = do(ctx, dir, metadata)
|
|
} else {
|
|
do, ok := dst.(fs.SetMetadataer)
|
|
if !ok {
|
|
return nil, fmt.Errorf("internal error: expecting directory %s (%T) from %v to have SetMetadata method: %w", logName, dst, f, fs.ErrorNotImplemented)
|
|
}
|
|
err = do.SetMetadata(ctx, metadata)
|
|
newDst = dst
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
fs.Infof(logName, "Updated directory metadata")
|
|
return newDst, nil
|
|
}
|
|
|
|
// SetDirModTime sets the modtime on dst or dir
|
|
//
|
|
// If dst is nil then it uses dir as the name of the directory.
|
|
//
|
|
// It returns the destination directory if possible. Note that this
|
|
// may be nil.
|
|
//
|
|
// It does not create the directory.
|
|
func SetDirModTime(ctx context.Context, f fs.Fs, dst fs.Directory, dir string, modTime time.Time) (newDst fs.Directory, err error) {
|
|
logName := dirName(f, dst, dir)
|
|
ci := fs.GetConfig(ctx)
|
|
if ci.NoUpdateDirModTime {
|
|
fs.Debugf(logName, "Skipping set directory modification time as --no-update-dir-modtime is set")
|
|
return nil, nil
|
|
}
|
|
if SkipDestructive(ctx, logName, "set directory modification time") {
|
|
return nil, nil
|
|
}
|
|
if dst != nil {
|
|
dir = dst.Remote()
|
|
}
|
|
|
|
// Try to set the ModTime with the Directory.SetModTime method first as this is the most efficient
|
|
if dst != nil {
|
|
if do, ok := dst.(fs.SetModTimer); ok {
|
|
err := do.SetModTime(ctx, modTime)
|
|
if errors.Is(err, fs.ErrorNotImplemented) {
|
|
// Fall through and run the code below if not implemented
|
|
// This can happen for fs.DirWrapper instances
|
|
} else if err != nil {
|
|
return dst, err
|
|
} else {
|
|
fs.Infof(logName, "Set directory modification time (using SetModTime)")
|
|
return dst, nil
|
|
}
|
|
}
|
|
}
|
|
|
|
// Next try to set the ModTime with the Fs.DirSetModTime method as this works for non-metadata backends
|
|
if do := f.Features().DirSetModTime; do != nil {
|
|
err := do(ctx, dir, modTime)
|
|
if err != nil {
|
|
return dst, err
|
|
}
|
|
fs.Infof(logName, "Set directory modification time (using DirSetModTime)")
|
|
return dst, nil
|
|
}
|
|
|
|
// Something should have worked so return an error
|
|
return nil, fmt.Errorf("no method to set directory modtime found for %v (%T): %w", f, dst, fs.ErrorNotImplemented)
|
|
}
|