41 lines
1 KiB
Go
41 lines
1 KiB
Go
package main
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import (
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"context"
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"sync"
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"github.com/restic/restic/internal/ui/termstatus"
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)
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// setupTermstatus creates a new termstatus and reroutes globalOptions.{stdout,stderr} to it
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// The returned function must be called to shut down the termstatus,
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//
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// Expected usage:
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// ```
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// term, cancel := setupTermstatus()
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// defer cancel()
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// // do stuff
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// ```
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func setupTermstatus() (*termstatus.Terminal, func()) {
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var wg sync.WaitGroup
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// only shutdown once cancel is called to ensure that no output is lost
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cancelCtx, cancel := context.WithCancel(context.Background())
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term := termstatus.New(globalOptions.stdout, globalOptions.stderr, globalOptions.Quiet)
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wg.Add(1)
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go func() {
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defer wg.Done()
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term.Run(cancelCtx)
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}()
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// use the termstatus for stdout/stderr
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prevStdout, prevStderr := globalOptions.stdout, globalOptions.stderr
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globalOptions.stdout, globalOptions.stderr = termstatus.WrapStdio(term)
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return term, func() {
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// shutdown termstatus
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globalOptions.stdout, globalOptions.stderr = prevStdout, prevStderr
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cancel()
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wg.Wait()
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}
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}
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