mirror of
https://github.com/Luzifer/ansible-role-version.git
synced 2024-12-24 11:31:21 +00:00
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
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package main
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import (
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"context"
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"os"
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"os/signal"
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"gopkg.in/src-d/go-git.v4"
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. "gopkg.in/src-d/go-git.v4/_examples"
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)
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// Graceful cancellation example of a basic git operation such as Clone.
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func main() {
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CheckArgs("<url>", "<directory>")
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url := os.Args[1]
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directory := os.Args[2]
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// Clone the given repository to the given directory
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Info("git clone %s %s", url, directory)
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt)
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// The context is the mechanism used by go-git, to support deadlines and
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// cancellation signals.
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel() // cancel when we are finished consuming integers
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go func() {
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<-stop
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Warning("\nSignal detected, canceling operation...")
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cancel()
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}()
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Warning("To gracefully stop the clone operation, push Crtl-C.")
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// Using PlainCloneContext we can provide to a context, if the context
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// is cancelled, the clone operation stops gracefully.
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_, err := git.PlainCloneContext(ctx, directory, false, &git.CloneOptions{
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URL: url,
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Progress: os.Stdout,
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})
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// If the context was cancelled, an error is returned.
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CheckIfError(err)
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}
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