54 lines
996 B
Go
54 lines
996 B
Go
package fsutil
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import (
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"os"
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)
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// Return true if os.Stat doesn't return an error.
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func PathExists(path string) bool {
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_, err := os.Stat(path)
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return err == nil
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}
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// Returns true if os.Stat doesn't return an error and the path is a regular file.
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func FileExists(path string) bool {
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fi, err := os.Stat(path)
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if err != nil {
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return false
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}
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return fi.Mode().IsRegular()
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}
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// Returns true if os.Stat doesn't return an error and the path is a directory.
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func DirExists(path string) bool {
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fi, err := os.Stat(path)
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if err != nil {
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return false
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}
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return fi.Mode().IsDir()
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}
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// Write a file atomically on a POSIX file system.
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func WriteFileAtomic(data []byte, tmpPath, finalPath string) error {
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f, err := os.Create(tmpPath)
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if err != nil {
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return err
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}
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if _, err := f.Write(data); err != nil {
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f.Close()
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return err
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}
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if err := f.Sync(); err != nil {
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f.Close()
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return err
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}
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if err := f.Close(); err != nil {
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return err
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}
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return os.Rename(tmpPath, finalPath)
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}
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