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lazygit/vendor/github.com/tcnksm/go-gitconfig/gitconfig.go
2018-08-08 20:45:12 +10:00

114 lines
2.8 KiB
Go

// Package gitconfig enables you to use `~/.gitconfig` values in Golang.
//
// For a full guide visit http://github.com/tcnksm/go-gitconfig
//
// package main
//
// import (
// "github.com/tcnksm/go-gitconfig"
// "fmt"
// )
//
// func main() {
// user, err := gitconfig.Global("user.name")
// if err == nil {
// fmt.Println(user)
// }
// }
//
package gitconfig
import (
"bytes"
"fmt"
"io/ioutil"
"os/exec"
"regexp"
"strings"
"syscall"
)
// Entire extracts configuration value from `$HOME/.gitconfig` file ,
// `$GIT_CONFIG`, /etc/gitconfig or include.path files.
func Entire(key string) (string, error) {
return execGitConfig(key)
}
// Global extracts configuration value from `$HOME/.gitconfig` file or `$GIT_CONFIG`.
func Global(key string) (string, error) {
return execGitConfig("--global", key)
}
// Local extracts configuration value from current project repository.
func Local(key string) (string, error) {
return execGitConfig("--local", key)
}
// GithubUser extracts github.user name from `Entire gitconfig`
// This is same as Entire("github.user")
func GithubUser() (string, error) {
return Entire("github.user")
}
// Username extracts git user name from `Entire gitconfig`.
// This is same as Entire("user.name")
func Username() (string, error) {
return Entire("user.name")
}
// Email extracts git user email from `$HOME/.gitconfig` file or `$GIT_CONFIG`.
// This is same as Global("user.email")
func Email() (string, error) {
return Entire("user.email")
}
// OriginURL extract remote origin url from current project repository.
// This is same as Local("remote.origin.url")
func OriginURL() (string, error) {
return Local("remote.origin.url")
}
// Repository extract repository name of current project repository.
func Repository() (string, error) {
url, err := OriginURL()
if err != nil {
return "", err
}
repo := retrieveRepoName(url)
return repo, nil
}
// Github extracts github token from `Entire gitconfig`.
// This is same as Entire("github.token")
func GithubToken() (string, error) {
return Entire("github.token")
}
func execGitConfig(args ...string) (string, error) {
gitArgs := append([]string{"config", "--get", "--null"}, args...)
var stdout bytes.Buffer
cmd := exec.Command("git", gitArgs...)
cmd.Stdout = &stdout
cmd.Stderr = ioutil.Discard
err := cmd.Run()
if exitError, ok := err.(*exec.ExitError); ok {
if waitStatus, ok := exitError.Sys().(syscall.WaitStatus); ok {
if waitStatus.ExitStatus() == 1 {
return "", fmt.Errorf("the key `%s` is not found", args[len(args)-1])
}
}
return "", err
}
return strings.TrimRight(stdout.String(), "\000"), nil
}
var RepoNameRegexp = regexp.MustCompile(`.+/([^/]+)(\.git)?$`)
func retrieveRepoName(url string) string {
matched := RepoNameRegexp.FindStringSubmatch(url)
return strings.TrimSuffix(matched[1], ".git")
}