29b58dd4c5
This commit adds support for the same repo layouts supported by git-annex-remote-rclone. This should enable git-annex users with remotes of type "rclone" to switch to a "rclone-builtin" without needing to retransfer content. Issue #7625
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package gitannex
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import (
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"fmt"
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"strings"
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)
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type layoutMode string
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// All layout modes from git-annex-remote-rclone are supported.
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const (
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layoutModeLower layoutMode = "lower"
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layoutModeDirectory layoutMode = "directory"
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layoutModeNodir layoutMode = "nodir"
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layoutModeMixed layoutMode = "mixed"
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layoutModeFrankencase layoutMode = "frankencase"
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layoutModeUnknown layoutMode = ""
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)
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func allLayoutModes() []layoutMode {
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return []layoutMode{
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layoutModeLower,
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layoutModeDirectory,
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layoutModeNodir,
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layoutModeMixed,
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layoutModeFrankencase,
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}
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}
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func parseLayoutMode(mode string) layoutMode {
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for _, knownMode := range allLayoutModes() {
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if mode == string(knownMode) {
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return knownMode
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}
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}
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return layoutModeUnknown
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}
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type queryDirhashFunc func(msg string) (string, error)
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func buildFsString(queryDirhash queryDirhashFunc, mode layoutMode, key, remoteName, prefix string) (string, error) {
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if mode == layoutModeNodir {
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return fmt.Sprintf("%s:%s", remoteName, prefix), nil
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}
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var dirhash string
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var err error
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switch mode {
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case layoutModeLower, layoutModeDirectory:
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dirhash, err = queryDirhash("DIRHASH-LOWER " + key)
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case layoutModeMixed, layoutModeFrankencase:
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dirhash, err = queryDirhash("DIRHASH " + key)
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default:
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panic("unreachable")
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}
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if err != nil {
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return "", fmt.Errorf("buildFsString failed to query dirhash: %w", err)
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}
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switch mode {
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case layoutModeLower:
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return fmt.Sprintf("%s:%s/%s", remoteName, prefix, dirhash), nil
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case layoutModeDirectory:
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return fmt.Sprintf("%s:%s/%s%s", remoteName, prefix, dirhash, key), nil
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case layoutModeMixed:
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return fmt.Sprintf("%s:%s/%s", remoteName, prefix, dirhash), nil
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case layoutModeFrankencase:
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return fmt.Sprintf("%s:%s/%s", remoteName, prefix, strings.ToLower(dirhash)), nil
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default:
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panic("unreachable")
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}
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}
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