issue 178: fetch the repo dir with rev-parse --git-dir

Since is returns the .git dir directly, it is not more needed to
concatenate .git.

Author: seeduvax

cache/repo_cache.go

@@ -350,11 +350,11 @@ func (c *RepoCache) writeIdentityCache() error {
 }
 
 func bugCacheFilePath(repo repository.Repo) string {
-	return path.Join(repo.GetPath(), ".git", "git-bug", bugCacheFile)
+	return path.Join(repo.GetPath(), "git-bug", bugCacheFile)
 }
 
 func identityCacheFilePath(repo repository.Repo) string {
-	return path.Join(repo.GetPath(), ".git", "git-bug", identityCacheFile)
+	return path.Join(repo.GetPath(), "git-bug", identityCacheFile)
 }
 
 func (c *RepoCache) buildCache() error {
@@ -706,7 +706,7 @@ func (c *RepoCache) Pull(remote string) error {
 }
 
 func repoLockFilePath(repo repository.Repo) string {
-	return path.Join(repo.GetPath(), ".git", "git-bug", lockfile)
+	return path.Join(repo.GetPath(), "git-bug", lockfile)
 }
 
 // repoIsAvailable check is the given repository is locked by a Cache.

commands/select/select.go

@@ -137,5 +137,5 @@ func selected(repo *cache.RepoCache) (*cache.BugCache, error) {
 }
 
 func selectFilePath(repo repository.RepoCommon) string {
-	return path.Join(repo.GetPath(), ".git", "git-bug", selectFile)
+	return path.Join(repo.GetPath(), "git-bug", selectFile)
 }

input/input.go

@@ -239,7 +239,7 @@ func QueryEditorInput(repo repository.RepoCommon, preQuery string) (string, erro
 // launchEditorWithTemplate will launch an editor as launchEditor do, but with a
 // provided template.
 func launchEditorWithTemplate(repo repository.RepoCommon, fileName string, template string) (string, error) {
-	path := fmt.Sprintf("%s/.git/%s", repo.GetPath(), fileName)
+	path := fmt.Sprintf("%s/%s", repo.GetPath(), fileName)
 
 	err := ioutil.WriteFile(path, []byte(template), 0644)
 
@@ -254,13 +254,13 @@ func launchEditorWithTemplate(repo repository.RepoCommon, fileName string, templ
 // method blocks until the editor command has returned.
 //
 // The specified filename should be a temporary file and provided as a relative path
-// from the repo (e.g. "FILENAME" will be converted to ".git/FILENAME"). This file
+// from the repo (e.g. "FILENAME" will be converted to "[<reporoot>/].git/FILENAME"). This file
 // will be deleted after the editor is closed and its contents have been read.
 //
 // This method returns the text that was read from the temporary file, or
 // an error if any step in the process failed.
 func launchEditor(repo repository.RepoCommon, fileName string) (string, error) {
-	path := fmt.Sprintf("%s/.git/%s", repo.GetPath(), fileName)
+	path := fmt.Sprintf("%s/%s", repo.GetPath(), fileName)
 	defer os.Remove(path)
 
 	editor, err := repo.GetCoreEditor()

repository/git.go

@@ -17,8 +17,8 @@ import (
 	"github.com/MichaelMure/git-bug/util/lamport"
 )
 
-const createClockFile = "/.git/git-bug/create-clock"
-const editClockFile = "/.git/git-bug/edit-clock"
+const createClockFile = "/git-bug/create-clock"
+const editClockFile = "/git-bug/edit-clock"
 
 // ErrNotARepo is the error returned when the git repo root wan't be found
 var ErrNotARepo = errors.New("not a git repository")
@@ -76,10 +76,11 @@ func NewGitRepo(path string, witnesser Witnesser) (*GitRepo, error) {
 	repo := &GitRepo{Path: path}
 
 	// Check the repo and retrieve the root path
-	stdout, err := repo.runGitCommand("rev-parse", "--show-toplevel")
+	stdout, err := repo.runGitCommand("rev-parse", "--git-dir")
 
-	// for some reason, "git rev-parse --show-toplevel" return nothing
-	// and no error when inside a ".git" dir
+	// Now dir is fetched with "git rev-parse --git-dir". May be it can
+	// still return nothing in some cases. Then empty stdout check is
+	// kept.
 	if err != nil || stdout == "" {
 		return nil, ErrNotARepo
 	}