Created
October 29, 2016 15:30
-
-
Save Gitart/96ac73532c32436f7189840c0a1ec59c to your computer and use it in GitHub Desktop.
Replace all
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Source: https://gist.github.com/tdegrunt/045f6b3377f3f7ffa408 | |
// Example: replaceall.exe -find="cordove" -replace="gowebapp" -extension="*.go" -filename=true -write=false | |
package main | |
import ( | |
"flag" | |
"fmt" | |
"io/ioutil" | |
"os" | |
"path/filepath" | |
"strconv" | |
"strings" | |
) | |
func visit(path string, fi os.FileInfo, err error) error { | |
if err != nil { | |
return err | |
} | |
if fi.IsDir() { | |
return nil | |
} | |
matched, err := filepath.Match(*flagExt, fi.Name()) | |
if err != nil { | |
panic(err) | |
return err | |
} | |
// If the file extension matches | |
if matched { | |
// Read the entire file into memory | |
read, err := ioutil.ReadFile(path) | |
if err != nil { | |
fmt.Println("**ERROR: Could not read from", path) | |
return nil | |
} | |
// Convert the bytes array into a string | |
oldContents := string(read) | |
// If the file name contains the search term, replace the file name | |
if *flagName && strings.Contains(fi.Name(), *flagFind) { | |
oldpath := path | |
path = strings.Replace(path, *flagFind, *flagReplace, -1) | |
fmt.Println(" Rename:", oldpath, "("+path+")") | |
if *flagCommit { | |
errRename := os.Rename(oldpath, path) | |
if errRename != nil { | |
fmt.Println("**ERROR: Could not rename", oldpath, "to", path) | |
return nil | |
} | |
} | |
} | |
// If the file contains the search term | |
if strings.Contains(oldContents, *flagFind) { | |
// Replace the search term | |
newContents := strings.Replace(oldContents, *flagFind, *flagReplace, -1) | |
count := strconv.Itoa(strings.Count(oldContents, *flagFind)) | |
fmt.Println("Replace:", path, "("+count+")") | |
// Write the data back to the file | |
if *flagCommit { | |
err = ioutil.WriteFile(path, []byte(newContents), 0) | |
if err != nil { | |
fmt.Println("**ERROR: Could not write to", path) | |
return nil | |
} | |
} | |
} | |
} | |
return nil | |
} | |
var ( | |
flagFind *string | |
flagReplace *string | |
flagExt *string | |
flagName *bool | |
flagCommit *bool | |
) | |
func init() { | |
flag.Usage = func() { | |
fmt.Fprintf(os.Stderr, "Usage: %s -find=\"blue\" -replace=\"red\" \n*Does not rename folders\n\nPossible flags:\n", os.Args[0]) | |
flag.PrintDefaults() | |
} | |
} | |
func main() { | |
flagFind = flag.String("find", "", "search for text") | |
flagReplace = flag.String("replace", "", "replace with text") | |
flagExt = flag.String("extension", "*.txt", "file extension") | |
flagName = flag.Bool("filename", false, "include file path when replacing") | |
flagCommit = flag.Bool("write", false, "write the changes (only show changes by defaults)") | |
flag.Parse() | |
if *flagExt != "" && (*flagFind != "" || *flagReplace != "") { | |
fmt.Println() | |
if *flagCommit { | |
fmt.Println("Results") | |
fmt.Println("-------") | |
} else { | |
fmt.Println("Results (no changes)") | |
fmt.Println("--------------------") | |
} | |
err := filepath.Walk(".", visit) | |
if err != nil { | |
panic(err) | |
} | |
} else { | |
fmt.Println("Flags are missing. No changes made.") | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment