34 lines
759 B
Go
34 lines
759 B
Go
package fsx
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import (
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"io/fs"
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"time"
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"github.com/FAU-CDI/wisski-distillery/pkg/environment"
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)
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// Touch touches a file.
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// It is similar to the unix 'touch' command.
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//
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// If the file does not exist exists, it is created using [env.Create].
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// If the file does exist, it's access and modification times are updated to the current time.
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func Touch(env environment.Environment, path string, perm fs.FileMode) error {
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if perm == 0 {
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perm = environment.DefaultFilePerm
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}
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_, err := env.Stat(path)
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switch {
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case environment.IsNotExist(err):
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f, err := env.Create(path, perm)
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if err != nil {
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return err
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}
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defer f.Close()
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return nil
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case err != nil:
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return err
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default:
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now := time.Now().Local()
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return env.Chtimes(path, now, now)
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}
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}
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