101 lines
2 KiB
Go
101 lines
2 KiB
Go
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package main
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import (
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"errors"
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"fmt"
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"io"
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"log"
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"os"
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"regexp"
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"strings"
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)
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var (
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errCommitMsgSyntax = errors.New("commit msg syntax is wrong")
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errCommitMsgInvalideType = errors.New("commit msg type is invalide")
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)
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var allowedTypes []string
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func main() {
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allowedTypes = append(allowedTypes, "fix", "feat", "build", "chore", "ci", "docs", "style", "refactor", "perf", "test")
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commitMsg, err := getCommitMessageFromFile(os.Args[1])
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if err != nil {
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log.Fatal("Error parsing commitMsg: ", err)
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}
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firstLine, err := getFirstLine(commitMsg)
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if err != nil {
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log.Fatal("Error getting first line of commitMsg: ", err)
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}
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err = checkCommitMsg(firstLine)
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if err != nil {
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fmt.Println("### COMMIT MESSAGES dont match conventions")
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fmt.Println(err)
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fmt.Println("")
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fmt.Println("A valid example is:")
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fmt.Println("feat(lang): add Polish language")
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fmt.Println("valide types are: ", strings.Join(allowedTypes, ", "))
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fmt.Println("see more at: https://www.conventionalcommits.org/en/v1.0.0/")
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os.Exit(1)
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}
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fmt.Println("Commit Message ok")
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}
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func checkCommitMsg(firstLine string) error {
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r, _ := regexp.Compile("^([a-z]*)(\\([^\\)]*\\))?!?:")
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results := r.FindStringSubmatch(firstLine)
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if len(results) < 3 {
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return errCommitMsgSyntax
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}
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if !CheckTyp(results[1]) {
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return errCommitMsgInvalideType
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}
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return nil
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}
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func CheckTyp(ty string) bool {
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for _, t := range allowedTypes {
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if t == ty {
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return true
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}
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}
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return false
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}
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func getFirstLine(commitMsg string) (string, error) {
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lines := strings.Split(commitMsg, "\n")
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return lines[0], nil
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}
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func getCommitMessageFromFile(path string) (string, error) {
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f, err := os.Open(path)
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if err != nil {
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return "", fmt.Errorf("cant open commit msg file: %w", err)
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}
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defer f.Close()
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buf := make([]byte, 1024)
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commitmsg := ""
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for {
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n, err := f.Read(buf)
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if err == io.EOF {
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break
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}
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if err != nil {
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return "", fmt.Errorf("cant read from commit-msg file: %w", err)
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}
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if n > 0 {
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commitmsg += string(buf[:n])
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}
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}
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return commitmsg, nil
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}
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