66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"git.wntrmute.dev/kyle/goutils/die"
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)
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var reUUID = regexp.MustCompile(`^\w{8}-\w{4}-\w{4}-\w{4}-\w{12}_(.+)$`)
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func renamePath(path string, dryRun bool) error {
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dir, base := filepath.Split(path)
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base = reUUID.ReplaceAllString(base, "$1")
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newPath := filepath.Join(dir, base)
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if dryRun {
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fmt.Println(path, "->", newPath)
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return nil
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}
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err := os.Rename(path, newPath)
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if err != nil {
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return fmt.Errorf("renaming %s to %s failed: %v", path, newPath, err)
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}
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return nil
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}
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func test() bool {
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const testFilePath = "48793683-8568-47c2-9e2d-eecab3c4b639_Whispers of Chernobog.pdf"
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const expected = "Whispers of Chernobog.pdf"
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actual := reUUID.ReplaceAllString(testFilePath, "$1")
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return actual == expected
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}
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func main() {
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var err error
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if !test() {
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die.With("test failed")
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}
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dryRun := false
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flag.BoolVar(&dryRun, "n", dryRun, "don't rename files, just print what would be done")
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flag.Parse()
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paths := flag.Args()
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if len(paths) == 0 {
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paths, err = filepath.Glob("*")
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die.If(err)
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}
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for _, file := range paths {
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err = renamePath(file, dryRun)
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s: %v\n", file, err)
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}
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}
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}
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