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-rw-r--r--vendor/gopkg.in/src-d/go-git.v4/worktree.go923
1 files changed, 923 insertions, 0 deletions
diff --git a/vendor/gopkg.in/src-d/go-git.v4/worktree.go b/vendor/gopkg.in/src-d/go-git.v4/worktree.go
new file mode 100644
index 0000000000..e45d815484
--- /dev/null
+++ b/vendor/gopkg.in/src-d/go-git.v4/worktree.go
@@ -0,0 +1,923 @@
+package git
+
+import (
+ "context"
+ "errors"
+ "fmt"
+ "io"
+ stdioutil "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+
+ "gopkg.in/src-d/go-git.v4/config"
+ "gopkg.in/src-d/go-git.v4/plumbing"
+ "gopkg.in/src-d/go-git.v4/plumbing/filemode"
+ "gopkg.in/src-d/go-git.v4/plumbing/format/gitignore"
+ "gopkg.in/src-d/go-git.v4/plumbing/format/index"
+ "gopkg.in/src-d/go-git.v4/plumbing/object"
+ "gopkg.in/src-d/go-git.v4/plumbing/storer"
+ "gopkg.in/src-d/go-git.v4/utils/ioutil"
+ "gopkg.in/src-d/go-git.v4/utils/merkletrie"
+
+ "gopkg.in/src-d/go-billy.v4"
+ "gopkg.in/src-d/go-billy.v4/util"
+)
+
+var (
+ ErrWorktreeNotClean = errors.New("worktree is not clean")
+ ErrSubmoduleNotFound = errors.New("submodule not found")
+ ErrUnstagedChanges = errors.New("worktree contains unstaged changes")
+ ErrGitModulesSymlink = errors.New(gitmodulesFile + " is a symlink")
+)
+
+// Worktree represents a git worktree.
+type Worktree struct {
+ // Filesystem underlying filesystem.
+ Filesystem billy.Filesystem
+ // External excludes not found in the repository .gitignore
+ Excludes []gitignore.Pattern
+
+ r *Repository
+}
+
+// Pull incorporates changes from a remote repository into the current branch.
+// Returns nil if the operation is successful, NoErrAlreadyUpToDate if there are
+// no changes to be fetched, or an error.
+//
+// Pull only supports merges where the can be resolved as a fast-forward.
+func (w *Worktree) Pull(o *PullOptions) error {
+ return w.PullContext(context.Background(), o)
+}
+
+// PullContext incorporates changes from a remote repository into the current
+// branch. Returns nil if the operation is successful, NoErrAlreadyUpToDate if
+// there are no changes to be fetched, or an error.
+//
+// Pull only supports merges where the can be resolved as a fast-forward.
+//
+// The provided Context must be non-nil. If the context expires before the
+// operation is complete, an error is returned. The context only affects to the
+// transport operations.
+func (w *Worktree) PullContext(ctx context.Context, o *PullOptions) error {
+ if err := o.Validate(); err != nil {
+ return err
+ }
+
+ remote, err := w.r.Remote(o.RemoteName)
+ if err != nil {
+ return err
+ }
+
+ fetchHead, err := remote.fetch(ctx, &FetchOptions{
+ RemoteName: o.RemoteName,
+ Depth: o.Depth,
+ Auth: o.Auth,
+ Progress: o.Progress,
+ Force: o.Force,
+ })
+
+ updated := true
+ if err == NoErrAlreadyUpToDate {
+ updated = false
+ } else if err != nil {
+ return err
+ }
+
+ ref, err := storer.ResolveReference(fetchHead, o.ReferenceName)
+ if err != nil {
+ return err
+ }
+
+ head, err := w.r.Head()
+ if err == nil {
+ if !updated && head.Hash() == ref.Hash() {
+ return NoErrAlreadyUpToDate
+ }
+
+ ff, err := isFastForward(w.r.Storer, head.Hash(), ref.Hash())
+ if err != nil {
+ return err
+ }
+
+ if !ff {
+ return fmt.Errorf("non-fast-forward update")
+ }
+ }
+
+ if err != nil && err != plumbing.ErrReferenceNotFound {
+ return err
+ }
+
+ if err := w.updateHEAD(ref.Hash()); err != nil {
+ return err
+ }
+
+ if err := w.Reset(&ResetOptions{
+ Mode: MergeReset,
+ Commit: ref.Hash(),
+ }); err != nil {
+ return err
+ }
+
+ if o.RecurseSubmodules != NoRecurseSubmodules {
+ return w.updateSubmodules(&SubmoduleUpdateOptions{
+ RecurseSubmodules: o.RecurseSubmodules,
+ Auth: o.Auth,
+ })
+ }
+
+ return nil
+}
+
+func (w *Worktree) updateSubmodules(o *SubmoduleUpdateOptions) error {
+ s, err := w.Submodules()
+ if err != nil {
+ return err
+ }
+ o.Init = true
+ return s.Update(o)
+}
+
+// Checkout switch branches or restore working tree files.
+func (w *Worktree) Checkout(opts *CheckoutOptions) error {
+ if err := opts.Validate(); err != nil {
+ return err
+ }
+
+ if opts.Create {
+ if err := w.createBranch(opts); err != nil {
+ return err
+ }
+ }
+
+ if !opts.Force {
+ unstaged, err := w.containsUnstagedChanges()
+ if err != nil {
+ return err
+ }
+
+ if unstaged {
+ return ErrUnstagedChanges
+ }
+ }
+
+ c, err := w.getCommitFromCheckoutOptions(opts)
+ if err != nil {
+ return err
+ }
+
+ ro := &ResetOptions{Commit: c, Mode: MergeReset}
+ if opts.Force {
+ ro.Mode = HardReset
+ }
+
+ if !opts.Hash.IsZero() && !opts.Create {
+ err = w.setHEADToCommit(opts.Hash)
+ } else {
+ err = w.setHEADToBranch(opts.Branch, c)
+ }
+
+ if err != nil {
+ return err
+ }
+
+ return w.Reset(ro)
+}
+func (w *Worktree) createBranch(opts *CheckoutOptions) error {
+ _, err := w.r.Storer.Reference(opts.Branch)
+ if err == nil {
+ return fmt.Errorf("a branch named %q already exists", opts.Branch)
+ }
+
+ if err != plumbing.ErrReferenceNotFound {
+ return err
+ }
+
+ if opts.Hash.IsZero() {
+ ref, err := w.r.Head()
+ if err != nil {
+ return err
+ }
+
+ opts.Hash = ref.Hash()
+ }
+
+ return w.r.Storer.SetReference(
+ plumbing.NewHashReference(opts.Branch, opts.Hash),
+ )
+}
+
+func (w *Worktree) getCommitFromCheckoutOptions(opts *CheckoutOptions) (plumbing.Hash, error) {
+ if !opts.Hash.IsZero() {
+ return opts.Hash, nil
+ }
+
+ b, err := w.r.Reference(opts.Branch, true)
+ if err != nil {
+ return plumbing.ZeroHash, err
+ }
+
+ if !b.Name().IsTag() {
+ return b.Hash(), nil
+ }
+
+ o, err := w.r.Object(plumbing.AnyObject, b.Hash())
+ if err != nil {
+ return plumbing.ZeroHash, err
+ }
+
+ switch o := o.(type) {
+ case *object.Tag:
+ if o.TargetType != plumbing.CommitObject {
+ return plumbing.ZeroHash, fmt.Errorf("unsupported tag object target %q", o.TargetType)
+ }
+
+ return o.Target, nil
+ case *object.Commit:
+ return o.Hash, nil
+ }
+
+ return plumbing.ZeroHash, fmt.Errorf("unsupported tag target %q", o.Type())
+}
+
+func (w *Worktree) setHEADToCommit(commit plumbing.Hash) error {
+ head := plumbing.NewHashReference(plumbing.HEAD, commit)
+ return w.r.Storer.SetReference(head)
+}
+
+func (w *Worktree) setHEADToBranch(branch plumbing.ReferenceName, commit plumbing.Hash) error {
+ target, err := w.r.Storer.Reference(branch)
+ if err != nil {
+ return err
+ }
+
+ var head *plumbing.Reference
+ if target.Name().IsBranch() {
+ head = plumbing.NewSymbolicReference(plumbing.HEAD, target.Name())
+ } else {
+ head = plumbing.NewHashReference(plumbing.HEAD, commit)
+ }
+
+ return w.r.Storer.SetReference(head)
+}
+
+// Reset the worktree to a specified state.
+func (w *Worktree) Reset(opts *ResetOptions) error {
+ if err := opts.Validate(w.r); err != nil {
+ return err
+ }
+
+ if opts.Mode == MergeReset {
+ unstaged, err := w.containsUnstagedChanges()
+ if err != nil {
+ return err
+ }
+
+ if unstaged {
+ return ErrUnstagedChanges
+ }
+ }
+
+ if err := w.setHEADCommit(opts.Commit); err != nil {
+ return err
+ }
+
+ if opts.Mode == SoftReset {
+ return nil
+ }
+
+ t, err := w.getTreeFromCommitHash(opts.Commit)
+ if err != nil {
+ return err
+ }
+
+ if opts.Mode == MixedReset || opts.Mode == MergeReset || opts.Mode == HardReset {
+ if err := w.resetIndex(t); err != nil {
+ return err
+ }
+ }
+
+ if opts.Mode == MergeReset || opts.Mode == HardReset {
+ if err := w.resetWorktree(t); err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+func (w *Worktree) resetIndex(t *object.Tree) error {
+ idx, err := w.r.Storer.Index()
+ if err != nil {
+ return err
+ }
+
+ changes, err := w.diffTreeWithStaging(t, true)
+ if err != nil {
+ return err
+ }
+
+ for _, ch := range changes {
+ a, err := ch.Action()
+ if err != nil {
+ return err
+ }
+
+ var name string
+ var e *object.TreeEntry
+
+ switch a {
+ case merkletrie.Modify, merkletrie.Insert:
+ name = ch.To.String()
+ e, err = t.FindEntry(name)
+ if err != nil {
+ return err
+ }
+ case merkletrie.Delete:
+ name = ch.From.String()
+ }
+
+ _, _ = idx.Remove(name)
+ if e == nil {
+ continue
+ }
+
+ idx.Entries = append(idx.Entries, &index.Entry{
+ Name: name,
+ Hash: e.Hash,
+ Mode: e.Mode,
+ })
+
+ }
+
+ return w.r.Storer.SetIndex(idx)
+}
+
+func (w *Worktree) resetWorktree(t *object.Tree) error {
+ changes, err := w.diffStagingWithWorktree(true)
+ if err != nil {
+ return err
+ }
+
+ idx, err := w.r.Storer.Index()
+ if err != nil {
+ return err
+ }
+
+ for _, ch := range changes {
+ if err := w.checkoutChange(ch, t, idx); err != nil {
+ return err
+ }
+ }
+
+ return w.r.Storer.SetIndex(idx)
+}
+
+func (w *Worktree) checkoutChange(ch merkletrie.Change, t *object.Tree, idx *index.Index) error {
+ a, err := ch.Action()
+ if err != nil {
+ return err
+ }
+
+ var e *object.TreeEntry
+ var name string
+ var isSubmodule bool
+
+ switch a {
+ case merkletrie.Modify, merkletrie.Insert:
+ name = ch.To.String()
+ e, err = t.FindEntry(name)
+ if err != nil {
+ return err
+ }
+
+ isSubmodule = e.Mode == filemode.Submodule
+ case merkletrie.Delete:
+ return rmFileAndDirIfEmpty(w.Filesystem, ch.From.String())
+ }
+
+ if isSubmodule {
+ return w.checkoutChangeSubmodule(name, a, e, idx)
+ }
+
+ return w.checkoutChangeRegularFile(name, a, t, e, idx)
+}
+
+func (w *Worktree) containsUnstagedChanges() (bool, error) {
+ ch, err := w.diffStagingWithWorktree(false)
+ if err != nil {
+ return false, err
+ }
+
+ for _, c := range ch {
+ a, err := c.Action()
+ if err != nil {
+ return false, err
+ }
+
+ if a == merkletrie.Insert {
+ continue
+ }
+
+ return true, nil
+ }
+
+ return false, nil
+}
+
+func (w *Worktree) setHEADCommit(commit plumbing.Hash) error {
+ head, err := w.r.Reference(plumbing.HEAD, false)
+ if err != nil {
+ return err
+ }
+
+ if head.Type() == plumbing.HashReference {
+ head = plumbing.NewHashReference(plumbing.HEAD, commit)
+ return w.r.Storer.SetReference(head)
+ }
+
+ branch, err := w.r.Reference(head.Target(), false)
+ if err != nil {
+ return err
+ }
+
+ if !branch.Name().IsBranch() {
+ return fmt.Errorf("invalid HEAD target should be a branch, found %s", branch.Type())
+ }
+
+ branch = plumbing.NewHashReference(branch.Name(), commit)
+ return w.r.Storer.SetReference(branch)
+}
+
+func (w *Worktree) checkoutChangeSubmodule(name string,
+ a merkletrie.Action,
+ e *object.TreeEntry,
+ idx *index.Index,
+) error {
+ switch a {
+ case merkletrie.Modify:
+ sub, err := w.Submodule(name)
+ if err != nil {
+ return err
+ }
+
+ if !sub.initialized {
+ return nil
+ }
+
+ return w.addIndexFromTreeEntry(name, e, idx)
+ case merkletrie.Insert:
+ mode, err := e.Mode.ToOSFileMode()
+ if err != nil {
+ return err
+ }
+
+ if err := w.Filesystem.MkdirAll(name, mode); err != nil {
+ return err
+ }
+
+ return w.addIndexFromTreeEntry(name, e, idx)
+ }
+
+ return nil
+}
+
+func (w *Worktree) checkoutChangeRegularFile(name string,
+ a merkletrie.Action,
+ t *object.Tree,
+ e *object.TreeEntry,
+ idx *index.Index,
+) error {
+ switch a {
+ case merkletrie.Modify:
+ _, _ = idx.Remove(name)
+
+ // to apply perm changes the file is deleted, billy doesn't implement
+ // chmod
+ if err := w.Filesystem.Remove(name); err != nil {
+ return err
+ }
+
+ fallthrough
+ case merkletrie.Insert:
+ f, err := t.File(name)
+ if err != nil {
+ return err
+ }
+
+ if err := w.checkoutFile(f); err != nil {
+ return err
+ }
+
+ return w.addIndexFromFile(name, e.Hash, idx)
+ }
+
+ return nil
+}
+
+func (w *Worktree) checkoutFile(f *object.File) (err error) {
+ mode, err := f.Mode.ToOSFileMode()
+ if err != nil {
+ return
+ }
+
+ if mode&os.ModeSymlink != 0 {
+ return w.checkoutFileSymlink(f)
+ }
+
+ from, err := f.Reader()
+ if err != nil {
+ return
+ }
+
+ defer ioutil.CheckClose(from, &err)
+
+ to, err := w.Filesystem.OpenFile(f.Name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, mode.Perm())
+ if err != nil {
+ return
+ }
+
+ defer ioutil.CheckClose(to, &err)
+
+ _, err = io.Copy(to, from)
+ return
+}
+
+func (w *Worktree) checkoutFileSymlink(f *object.File) (err error) {
+ from, err := f.Reader()
+ if err != nil {
+ return
+ }
+
+ defer ioutil.CheckClose(from, &err)
+
+ bytes, err := stdioutil.ReadAll(from)
+ if err != nil {
+ return
+ }
+
+ err = w.Filesystem.Symlink(string(bytes), f.Name)
+
+ // On windows, this might fail.
+ // Follow Git on Windows behavior by writing the link as it is.
+ if err != nil && isSymlinkWindowsNonAdmin(err) {
+ mode, _ := f.Mode.ToOSFileMode()
+
+ to, err := w.Filesystem.OpenFile(f.Name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, mode.Perm())
+ if err != nil {
+ return err
+ }
+
+ defer ioutil.CheckClose(to, &err)
+
+ _, err = to.Write(bytes)
+ return err
+ }
+ return
+}
+
+func (w *Worktree) addIndexFromTreeEntry(name string, f *object.TreeEntry, idx *index.Index) error {
+ _, _ = idx.Remove(name)
+ idx.Entries = append(idx.Entries, &index.Entry{
+ Hash: f.Hash,
+ Name: name,
+ Mode: filemode.Submodule,
+ })
+
+ return nil
+}
+
+func (w *Worktree) addIndexFromFile(name string, h plumbing.Hash, idx *index.Index) error {
+ _, _ = idx.Remove(name)
+ fi, err := w.Filesystem.Lstat(name)
+ if err != nil {
+ return err
+ }
+
+ mode, err := filemode.NewFromOSFileMode(fi.Mode())
+ if err != nil {
+ return err
+ }
+
+ e := &index.Entry{
+ Hash: h,
+ Name: name,
+ Mode: mode,
+ ModifiedAt: fi.ModTime(),
+ Size: uint32(fi.Size()),
+ }
+
+ // if the FileInfo.Sys() comes from os the ctime, dev, inode, uid and gid
+ // can be retrieved, otherwise this doesn't apply
+ if fillSystemInfo != nil {
+ fillSystemInfo(e, fi.Sys())
+ }
+
+ idx.Entries = append(idx.Entries, e)
+ return nil
+}
+
+func (w *Worktree) getTreeFromCommitHash(commit plumbing.Hash) (*object.Tree, error) {
+ c, err := w.r.CommitObject(commit)
+ if err != nil {
+ return nil, err
+ }
+
+ return c.Tree()
+}
+
+var fillSystemInfo func(e *index.Entry, sys interface{})
+
+const gitmodulesFile = ".gitmodules"
+
+// Submodule returns the submodule with the given name
+func (w *Worktree) Submodule(name string) (*Submodule, error) {
+ l, err := w.Submodules()
+ if err != nil {
+ return nil, err
+ }
+
+ for _, m := range l {
+ if m.Config().Name == name {
+ return m, nil
+ }
+ }
+
+ return nil, ErrSubmoduleNotFound
+}
+
+// Submodules returns all the available submodules
+func (w *Worktree) Submodules() (Submodules, error) {
+ l := make(Submodules, 0)
+ m, err := w.readGitmodulesFile()
+ if err != nil || m == nil {
+ return l, err
+ }
+
+ c, err := w.r.Config()
+ if err != nil {
+ return nil, err
+ }
+
+ for _, s := range m.Submodules {
+ l = append(l, w.newSubmodule(s, c.Submodules[s.Name]))
+ }
+
+ return l, nil
+}
+
+func (w *Worktree) newSubmodule(fromModules, fromConfig *config.Submodule) *Submodule {
+ m := &Submodule{w: w}
+ m.initialized = fromConfig != nil
+
+ if !m.initialized {
+ m.c = fromModules
+ return m
+ }
+
+ m.c = fromConfig
+ m.c.Path = fromModules.Path
+ return m
+}
+
+func (w *Worktree) isSymlink(path string) bool {
+ if s, err := w.Filesystem.Lstat(path); err == nil {
+ return s.Mode()&os.ModeSymlink != 0
+ }
+ return false
+}
+
+func (w *Worktree) readGitmodulesFile() (*config.Modules, error) {
+ if w.isSymlink(gitmodulesFile) {
+ return nil, ErrGitModulesSymlink
+ }
+
+ f, err := w.Filesystem.Open(gitmodulesFile)
+ if err != nil {
+ if os.IsNotExist(err) {
+ return nil, nil
+ }
+
+ return nil, err
+ }
+
+ defer f.Close()
+ input, err := stdioutil.ReadAll(f)
+ if err != nil {
+ return nil, err
+ }
+
+ m := config.NewModules()
+ return m, m.Unmarshal(input)
+}
+
+// Clean the worktree by removing untracked files.
+// An empty dir could be removed - this is what `git clean -f -d .` does.
+func (w *Worktree) Clean(opts *CleanOptions) error {
+ s, err := w.Status()
+ if err != nil {
+ return err
+ }
+
+ root := ""
+ files, err := w.Filesystem.ReadDir(root)
+ if err != nil {
+ return err
+ }
+ return w.doClean(s, opts, root, files)
+}
+
+func (w *Worktree) doClean(status Status, opts *CleanOptions, dir string, files []os.FileInfo) error {
+ for _, fi := range files {
+ if fi.Name() == ".git" {
+ continue
+ }
+
+ // relative path under the root
+ path := filepath.Join(dir, fi.Name())
+ if fi.IsDir() {
+ if !opts.Dir {
+ continue
+ }
+
+ subfiles, err := w.Filesystem.ReadDir(path)
+ if err != nil {
+ return err
+ }
+ err = w.doClean(status, opts, path, subfiles)
+ if err != nil {
+ return err
+ }
+ } else {
+ if status.IsUntracked(path) {
+ if err := w.Filesystem.Remove(path); err != nil {
+ return err
+ }
+ }
+ }
+ }
+
+ if opts.Dir {
+ return doCleanDirectories(w.Filesystem, dir)
+ }
+ return nil
+}
+
+// GrepResult is structure of a grep result.
+type GrepResult struct {
+ // FileName is the name of file which contains match.
+ FileName string
+ // LineNumber is the line number of a file at which a match was found.
+ LineNumber int
+ // Content is the content of the file at the matching line.
+ Content string
+ // TreeName is the name of the tree (reference name/commit hash) at
+ // which the match was performed.
+ TreeName string
+}
+
+func (gr GrepResult) String() string {
+ return fmt.Sprintf("%s:%s:%d:%s", gr.TreeName, gr.FileName, gr.LineNumber, gr.Content)
+}
+
+// Grep performs grep on a worktree.
+func (w *Worktree) Grep(opts *GrepOptions) ([]GrepResult, error) {
+ if err := opts.Validate(w); err != nil {
+ return nil, err
+ }
+
+ // Obtain commit hash from options (CommitHash or ReferenceName).
+ var commitHash plumbing.Hash
+ // treeName contains the value of TreeName in GrepResult.
+ var treeName string
+
+ if opts.ReferenceName != "" {
+ ref, err := w.r.Reference(opts.ReferenceName, true)
+ if err != nil {
+ return nil, err
+ }
+ commitHash = ref.Hash()
+ treeName = opts.ReferenceName.String()
+ } else if !opts.CommitHash.IsZero() {
+ commitHash = opts.CommitHash
+ treeName = opts.CommitHash.String()
+ }
+
+ // Obtain a tree from the commit hash and get a tracked files iterator from
+ // the tree.
+ tree, err := w.getTreeFromCommitHash(commitHash)
+ if err != nil {
+ return nil, err
+ }
+ fileiter := tree.Files()
+
+ return findMatchInFiles(fileiter, treeName, opts)
+}
+
+// findMatchInFiles takes a FileIter, worktree name and GrepOptions, and
+// returns a slice of GrepResult containing the result of regex pattern matching
+// in content of all the files.
+func findMatchInFiles(fileiter *object.FileIter, treeName string, opts *GrepOptions) ([]GrepResult, error) {
+ var results []GrepResult
+
+ err := fileiter.ForEach(func(file *object.File) error {
+ var fileInPathSpec bool
+
+ // When no pathspecs are provided, search all the files.
+ if len(opts.PathSpecs) == 0 {
+ fileInPathSpec = true
+ }
+
+ // Check if the file name matches with the pathspec. Break out of the
+ // loop once a match is found.
+ for _, pathSpec := range opts.PathSpecs {
+ if pathSpec != nil && pathSpec.MatchString(file.Name) {
+ fileInPathSpec = true
+ break
+ }
+ }
+
+ // If the file does not match with any of the pathspec, skip it.
+ if !fileInPathSpec {
+ return nil
+ }
+
+ grepResults, err := findMatchInFile(file, treeName, opts)
+ if err != nil {
+ return err
+ }
+ results = append(results, grepResults...)
+
+ return nil
+ })
+
+ return results, err
+}
+
+// findMatchInFile takes a single File, worktree name and GrepOptions,
+// and returns a slice of GrepResult containing the result of regex pattern
+// matching in the given file.
+func findMatchInFile(file *object.File, treeName string, opts *GrepOptions) ([]GrepResult, error) {
+ var grepResults []GrepResult
+
+ content, err := file.Contents()
+ if err != nil {
+ return grepResults, err
+ }
+
+ // Split the file content and parse line-by-line.
+ contentByLine := strings.Split(content, "\n")
+ for lineNum, cnt := range contentByLine {
+ addToResult := false
+
+ // Match the patterns and content. Break out of the loop once a
+ // match is found.
+ for _, pattern := range opts.Patterns {
+ if pattern != nil && pattern.MatchString(cnt) {
+ // Add to result only if invert match is not enabled.
+ if !opts.InvertMatch {
+ addToResult = true
+ break
+ }
+ } else if opts.InvertMatch {
+ // If matching fails, and invert match is enabled, add to
+ // results.
+ addToResult = true
+ break
+ }
+ }
+
+ if addToResult {
+ grepResults = append(grepResults, GrepResult{
+ FileName: file.Name,
+ LineNumber: lineNum + 1,
+ Content: cnt,
+ TreeName: treeName,
+ })
+ }
+ }
+
+ return grepResults, nil
+}
+
+func rmFileAndDirIfEmpty(fs billy.Filesystem, name string) error {
+ if err := util.RemoveAll(fs, name); err != nil {
+ return err
+ }
+
+ dir := filepath.Dir(name)
+ return doCleanDirectories(fs, dir)
+}
+
+// doCleanDirectories removes empty subdirs (without files)
+func doCleanDirectories(fs billy.Filesystem, dir string) error {
+ files, err := fs.ReadDir(dir)
+ if err != nil {
+ return err
+ }
+ if len(files) == 0 {
+ return fs.Remove(dir)
+ }
+ return nil
+}