// add appends u to file's list of units, as well as the list of units
// for each of file's ancestor dirs.
func (v filesToUnits) add(file string, u unit.ID2) {
file = path.Clean(file)
v[file] = append(v[file], u)
for _, dir := range util.AncestorDirs(file, false) {
v.addIfNotExists(dir, u)
}
}
// add appends ofs to file's list of def offsets, as well as the list
// of def offsets for each of file's ancestor dirs. If an entry has
// more than perFile offsets already, no more are appended.
func (v filesToDefOfs) add(file string, ofs int64, perFile int) {
file = path.Clean(file)
if len(v[file]) >= perFile {
return
}
v[file] = append(v[file], ofs)
for _, dir := range util.AncestorDirs(file, false) {
if len(v[dir]) < perFile {
v[dir] = append(v[dir], ofs)
}
}
}
func TestAncestorDirsExceptRoot(t *testing.T) {
tests := map[string][]string{
".": nil,
"/": nil,
"": nil,
"a": nil,
"a/": []string{"a"}, // maybe we don't want this behavior
"a/b": []string{"a"},
"a/b/c": []string{"a", filepath.FromSlash("a/b")},
}
for p, want := range tests {
dirs := util.AncestorDirs(p, false)
if !reflect.DeepEqual(dirs, want) {
t.Errorf("%v: got %v, want %v", p, dirs, want)
}
}
}
func getRootDir(dir string) (rootDir string, vcsType string, err error) {
dir, err = filepath.Abs(dir)
if err != nil {
return "", "", err
}
ancestors := util.AncestorDirs(dir, true)
vcsTypes := []string{"git", "hg"}
for i := len(ancestors) - 1; i >= 0; i-- {
ancDir := ancestors[i]
for _, vt := range vcsTypes {
// Don't check that the FileInfo is a dir because git
// submodules have a .git file.
if _, err := os.Stat(filepath.Join(ancDir, "."+vt)); err == nil {
return ancDir, vt, nil
}
}
}
return "", "", nil
}