mirror of
https://github.com/osmarks/mycorrhiza.git
synced 2024-12-14 06:10:26 +00:00
84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
// Package history provides a git wrapper.
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package history
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import (
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"bytes"
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"fmt"
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"log"
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"os/exec"
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"path/filepath"
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"regexp"
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"github.com/bouncepaw/mycorrhiza/files"
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"github.com/bouncepaw/mycorrhiza/util"
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)
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// Path to git executable. Set at init()
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var gitpath string
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var renameMsgPattern = regexp.MustCompile(`^Rename ‘(.*)’ to ‘.*’`)
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var gitEnv = []string{"GIT_COMMITTER_NAME=wikimind", "GIT_COMMITTER_EMAIL=wikimind@mycorrhiza"}
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// Start finds git and initializes git credentials.
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func Start() {
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path, err := exec.LookPath("git")
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if err != nil {
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log.Fatal("Could not find the git executable. Check your $PATH.")
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}
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gitpath = path
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}
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// InitGitRepo checks a Git repository and initializes it if necessary.
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func InitGitRepo() {
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// Detect if the Git repo directory is a Git repository
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isGitRepo := true
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buf, err := silentGitsh("rev-parse", "--git-dir")
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if err != nil {
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isGitRepo = false
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}
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if isGitRepo {
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gitDir := buf.String()
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if filepath.IsAbs(gitDir) && !filepath.HasPrefix(gitDir, files.HyphaeDir()) {
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isGitRepo = false
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}
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}
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if !isGitRepo {
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log.Println("Initializing Git repo at", files.HyphaeDir())
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gitsh("init")
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gitsh("config", "core.quotePath", "false")
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}
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}
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// I pronounce it as [gɪt͡ʃ].
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// gitsh is async-safe, therefore all other git-related functions in this module are too.
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func gitsh(args ...string) (out bytes.Buffer, err error) {
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fmt.Printf("$ %v\n", args)
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cmd := exec.Command(gitpath, args...)
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cmd.Dir = files.HyphaeDir()
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cmd.Env = append(cmd.Environ(), gitEnv...)
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b, err := cmd.CombinedOutput()
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if err != nil {
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log.Println("gitsh:", err)
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}
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return *bytes.NewBuffer(b), err
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}
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// silentGitsh is like gitsh, except it writes less to the stdout.
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func silentGitsh(args ...string) (out bytes.Buffer, err error) {
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cmd := exec.Command(gitpath, args...)
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cmd.Dir = files.HyphaeDir()
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cmd.Env = gitEnv
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b, err := cmd.CombinedOutput()
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return *bytes.NewBuffer(b), err
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}
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// Rename renames from `from` to `to` using `git mv`.
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func Rename(from, to string) error {
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log.Println(util.ShorterPath(from), util.ShorterPath(to))
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_, err := gitsh("mv", "--force", from, to)
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return err
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}
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