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package git_commands
import (
ioFs "io/fs"
"os"
"path/filepath"
"strings"
"github.com/go-errors/errors"
"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/spf13/afero"
)
type RepoPaths struct {
worktreePath string
worktreeGitDirPath string
repoPath string
repoGitDirPath string
repoName string
isBareRepo bool
}
var gitPathFormatVersion GitVersion = GitVersion{2, 31, 0, ""}
// Path to the current worktree. If we're in the main worktree, this will
// be the same as RepoPath()
func (self *RepoPaths) WorktreePath() string {
return self.worktreePath
}
// Path of the worktree's git dir.
// If we're in the main worktree, this will be the .git dir under the RepoPath().
// If we're in a linked worktree, it will be the directory pointed at by the worktree's .git file
func (self *RepoPaths) WorktreeGitDirPath() string {
return self.worktreeGitDirPath
}
// Path of the repo. If we're in a the main worktree, this will be the same as WorktreePath()
// If we're in a bare repo, it will be the parent folder of the bare repo
func (self *RepoPaths) RepoPath() string {
return self.repoPath
}
// path of the git-dir for the repo.
// If this is a bare repo, it will be the location of the bare repo
// If this is a non-bare repo, it will be the location of the .git dir in
// the main worktree.
func (self *RepoPaths) RepoGitDirPath() string {
return self.repoGitDirPath
}
// Name of the repo. Basename of the folder containing the repo.
func (self *RepoPaths) RepoName() string {
return self.repoName
}
func (self *RepoPaths) IsBareRepo() bool {
return self.isBareRepo
}
// Returns the repo paths for a typical repo
func MockRepoPaths(currentPath string) *RepoPaths {
return &RepoPaths{
worktreePath: currentPath,
worktreeGitDirPath: filepath.Join(currentPath, ".git"),
repoPath: currentPath,
repoGitDirPath: filepath.Join(currentPath, ".git"),
repoName: "lazygit",
isBareRepo: false,
}
}
func GetRepoPaths(
cmd oscommands.ICmdObjBuilder,
version *GitVersion,
) (*RepoPaths, error) {
cwd, err := os.Getwd()
if err != nil {
return nil, err
}
return GetRepoPathsForDir(cwd, cmd, version)
}
func GetRepoPathsForDir(
dir string,
cmd oscommands.ICmdObjBuilder,
version *GitVersion,
) (*RepoPaths, error) {
gitDirOutput, err := callGitRevParseWithDir(cmd, version, dir, "--show-toplevel", "--absolute-git-dir", "--git-common-dir", "--is-bare-repository", "--show-superproject-working-tree")
if err != nil {
return nil, err
}
gitDirResults := strings.Split(utils.NormalizeLinefeeds(gitDirOutput), "\n")
worktreePath := gitDirResults[0]
worktreeGitDirPath := gitDirResults[1]
repoGitDirPath := gitDirResults[2]
if version.IsOlderThanVersion(&gitPathFormatVersion) {
repoGitDirPath, err = filepath.Abs(repoGitDirPath)
if err != nil {
return nil, err
}
}
isBareRepo := gitDirResults[3] == "true"
// If we're in a submodule, --show-superproject-working-tree will return
// a value, meaning gitDirResults will be length 5. In that case
// return the worktree path as the repoPath. Otherwise we're in a
// normal repo or a worktree so return the parent of the git common
// dir (repoGitDirPath)
isSubmodule := len(gitDirResults) == 5
var repoPath string
if isSubmodule {
repoPath = worktreePath
} else {
repoPath = filepath.Dir(repoGitDirPath)
}
repoName := filepath.Base(repoPath)
return &RepoPaths{
worktreePath: worktreePath,
worktreeGitDirPath: worktreeGitDirPath,
repoPath: repoPath,
repoGitDirPath: repoGitDirPath,
repoName: repoName,
isBareRepo: isBareRepo,
}, nil
}
func callGitRevParseWithDir(
cmd oscommands.ICmdObjBuilder,
version *GitVersion,
dir string,
gitRevArgs ...string,
) (string, error) {
gitRevParse := NewGitCmd("rev-parse").ArgIf(version.IsAtLeastVersion(&gitPathFormatVersion), "--path-format=absolute").Arg(gitRevArgs...)
if dir != "" {
gitRevParse.Dir(dir)
}
gitCmd := cmd.New(gitRevParse.ToArgv()).DontLog()
res, err := gitCmd.RunWithOutput()
if err != nil {
return "", errors.Errorf("'%s' failed: %v", gitCmd.ToString(), err)
}
return strings.TrimSpace(res), nil
}
// Returns the paths of linked worktrees
func linkedWortkreePaths(fs afero.Fs, repoGitDirPath string) []string {
result := []string{}
// For each directory in this path we're going to cat the `gitdir` file and append its contents to our result
// That file points us to the `.git` file in the worktree.
worktreeGitDirsPath := filepath.Join(repoGitDirPath, "worktrees")
// ensure the directory exists
_, err := fs.Stat(worktreeGitDirsPath)
if err != nil {
return result
}
_ = afero.Walk(fs, worktreeGitDirsPath, func(currPath string, info ioFs.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
return nil
}
gitDirPath := filepath.Join(currPath, "gitdir")
gitDirBytes, err := afero.ReadFile(fs, gitDirPath)
if err != nil {
// ignoring error
return nil
}
trimmedGitDir := strings.TrimSpace(string(gitDirBytes))
// removing the .git part
worktreeDir := filepath.Dir(trimmedGitDir)
result = append(result, worktreeDir)
return nil
})
return result
}
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