9807213e60
This commit replaces deprecated calls to `os.Is{Not,}Exist` with the
newer `errors.Is(err, fs.Err{Not,}Exist)`.
57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package fsx
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import (
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"errors"
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"io/fs"
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"os"
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"time"
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)
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// Create is like [os.Create] with an additional mode argument.
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func Create(path string, mode fs.FileMode) (*os.File, error) {
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m.Lock()
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defer m.Unlock()
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return os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, mode)
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}
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// WriteFile is like [os.WriteFile].
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func WriteFile(path string, data []byte, mode fs.FileMode) error {
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handle, err := Create(path, mode)
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if err != nil {
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return err
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}
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defer handle.Close()
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if _, err := handle.Write(data); err != nil {
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return err
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}
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return nil
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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, it is created using [Create].
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// If the file does exist, its' access and modification times are updated to the current time.
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func Touch(path string, perm fs.FileMode) error {
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if perm == 0 {
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perm = DefaultFilePerm
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}
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_, err := os.Stat(path)
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switch {
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case errors.Is(err, fs.ErrNotExist):
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f, err := 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 os.Chtimes(path, now, now)
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}
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}
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