optimized hook with a faster processing and less loops

master
Martin Thielecke 7 years ago
parent b030d04311
commit 35842555c9
  1. 56
      prepare-commit-msg.go

@ -6,6 +6,7 @@ import (
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
)
@ -19,54 +20,53 @@ func readFile(filename string) string {
return string(contents)
}
func main() {
cmd := exec.Command("git", "status", "-s")
func runCommand(command string, values ...string) string {
cmd := exec.Command(command, values...)
var out bytes.Buffer
cmd.Stdout = &out
err := cmd.Run()
if err != nil {
panic(err)
}
return out.String()
}
func main() {
gitDir := runCommand("git", "rev-parse", "--git-dir")
gitDiff := runCommand("git", "diff", "--name-only", "--cached")
absolutePath := filepath.Dir(gitDir)
resultLines := strings.Split(out.String(), "\n")
resultLines := strings.Split(gitDiff, "\n")
if resultLines == nil {
return
}
re := regexp.MustCompile(`package\s(\w+)`)
names := make(map[string]bool)
for _, filenameStatus := range resultLines {
if filenameStatus != "" {
explodedStatus := strings.Split(strings.TrimSpace(filenameStatus), " ")
if len(explodedStatus) > 1 {
filename := explodedStatus[len(explodedStatus)-1]
status := explodedStatus[0]
if status == "??" {
continue
}
var prefix string
for _, filename := range resultLines {
if filename != "" {
content := readFile(absolutePath + "/" + filename)
content := readFile(filename)
pkg := re.FindStringSubmatch(string(content))
pkg := re.FindStringSubmatch(string(content))
if len(pkg) > 1 {
names[pkg[1]] = true
if len(pkg) < 2 {
continue
}
if _, found := names[pkg[1]]; !found {
if prefix != "" {
prefix += "|"
}
prefix += pkg[1]
names[pkg[1]] = true
}
}
}
if len(names) > 0 {
prefix := "["
i := 0
for name, _ := range names {
if i > 0 {
prefix += "|"
}
prefix += name
i++
}
prefix += "] "
if prefix != "" {
prefix = "[" + prefix + "]"
filename := os.Args[1]
msg := readFile(filename)
ioutil.WriteFile(filename, []byte(prefix+msg), 0x777)