feat: add file with using .gitignore, fixed src-d/go-git#1219

3 files changed, 117 insertions, 36 deletions

diff --git a/options.go b/options.go
index fd347d3..d222267 100644
--- a/options.go
+++ b/options.go
@@ -373,6 +373,12 @@ var (
 	ErrMissingAuthor = errors.New("author field is required")
 )
 
+// AddOptions describes how a add operation should be performed
+type AddOptions struct {
+	All  bool
+	Path string
+}
+
 // CommitOptions describes how a commit operation should be performed.
 type CommitOptions struct {
 	// All automatically stage files that have been modified and deleted, but
diff --git a/worktree_status.go b/worktree_status.go
index 1542f5e..658ed94 100644
--- a/worktree_status.go
+++ b/worktree_status.go
@@ -7,6 +7,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"strings"
 
 	"github.com/go-git/go-billy/v5/util"
 	"github.com/go-git/go-git/v5/plumbing"
@@ -264,43 +265,22 @@ func diffTreeIsEquals(a, b noder.Hasher) bool {
 // the worktree to the index. If any of the files is already staged in the index
 // no error is returned. When path is a file, the blob.Hash is returned.
 func (w *Worktree) Add(path string) (plumbing.Hash, error) {
-	// TODO(mcuadros): remove plumbing.Hash from signature at v5.
-	s, err := w.Status()
-	if err != nil {
-		return plumbing.ZeroHash, err
-	}
-
-	idx, err := w.r.Storer.Index()
-	if err != nil {
-		return plumbing.ZeroHash, err
-	}
-
-	var h plumbing.Hash
-	var added bool
-
-	fi, err := w.Filesystem.Lstat(path)
-	if err != nil || !fi.IsDir() {
-		added, h, err = w.doAddFile(idx, s, path)
-	} else {
-		added, err = w.doAddDirectory(idx, s, path)
-	}
-
-	if err != nil {
-		return h, err
-	}
-
-	if !added {
-		return h, nil
-	}
-
-	return h, w.r.Storer.SetIndex(idx)
+	return w.doAdd(path, make([]gitignore.Pattern, 0))
 }
 
-func (w *Worktree) doAddDirectory(idx *index.Index, s Status, directory string) (added bool, err error) {
+func (w *Worktree) doAddDirectory(idx *index.Index, s Status, directory string, ignorePattern []gitignore.Pattern) (added bool, err error) {
 	files, err := w.Filesystem.ReadDir(directory)
 	if err != nil {
 		return false, err
 	}
+	if len(ignorePattern) > 0 {
+		m := gitignore.NewMatcher(ignorePattern)
+		matchPath := strings.Split(directory, string(os.PathSeparator))
+		if m.Match(matchPath, true) {
+			// ignore
+			return false, nil
+		}
+	}
 
 	for _, file := range files {
 		name := path.Join(directory, file.Name())
@@ -311,9 +291,9 @@ func (w *Worktree) doAddDirectory(idx *index.Index, s Status, directory string)
 				// ignore special git directory
 				continue
 			}
-			a, err = w.doAddDirectory(idx, s, name)
+			a, err = w.doAddDirectory(idx, s, name, ignorePattern)
 		} else {
-			a, _, err = w.doAddFile(idx, s, name)
+			a, _, err = w.doAddFile(idx, s, name, ignorePattern)
 		}
 
 		if err != nil {
@@ -328,6 +308,47 @@ func (w *Worktree) doAddDirectory(idx *index.Index, s Status, directory string)
 	return
 }
 
+// add changes from all tracked and untracked files
+func (w *Worktree) AddWithOptions(opts *AddOptions) (plumbing.Hash, error) {
+	if opts.All {
+		return w.doAdd(".", w.Excludes)
+	}
+	return w.Add(opts.Path)
+}
+
+func (w *Worktree) doAdd(path string, ignorePattern []gitignore.Pattern) (plumbing.Hash, error) {
+	// TODO(mcuadros): remove plumbing.Hash from signature at v5.
+	s, err := w.Status()
+	if err != nil {
+		return plumbing.ZeroHash, err
+	}
+
+	idx, err := w.r.Storer.Index()
+	if err != nil {
+		return plumbing.ZeroHash, err
+	}
+
+	var h plumbing.Hash
+	var added bool
+
+	fi, err := w.Filesystem.Lstat(path)
+	if err != nil || !fi.IsDir() {
+		added, h, err = w.doAddFile(idx, s, path, ignorePattern)
+	} else {
+		added, err = w.doAddDirectory(idx, s, path, ignorePattern)
+	}
+
+	if err != nil {
+		return h, err
+	}
+
+	if !added {
+		return h, nil
+	}
+
+	return h, w.r.Storer.SetIndex(idx)
+}
+
 // AddGlob adds all paths, matching pattern, to the index. If pattern matches a
 // directory path, all directory contents are added to the index recursively. No
 // error is returned if all matching paths are already staged in index.
@@ -360,9 +381,9 @@ func (w *Worktree) AddGlob(pattern string) error {
 
 		var added bool
 		if fi.IsDir() {
-			added, err = w.doAddDirectory(idx, s, file)
+			added, err = w.doAddDirectory(idx, s, file, make([]gitignore.Pattern, 0))
 		} else {
-			added, _, err = w.doAddFile(idx, s, file)
+			added, _, err = w.doAddFile(idx, s, file, make([]gitignore.Pattern, 0))
 		}
 
 		if err != nil {
@@ -383,10 +404,18 @@ func (w *Worktree) AddGlob(pattern string) error {
 
 // doAddFile create a new blob from path and update the index, added is true if
 // the file added is different from the index.
-func (w *Worktree) doAddFile(idx *index.Index, s Status, path string) (added bool, h plumbing.Hash, err error) {
+func (w *Worktree) doAddFile(idx *index.Index, s Status, path string, ignorePattern []gitignore.Pattern) (added bool, h plumbing.Hash, err error) {
 	if s.File(path).Worktree == Unmodified {
 		return false, h, nil
 	}
+	if len(ignorePattern) > 0 {
+		m := gitignore.NewMatcher(ignorePattern)
+		matchPath := strings.Split(path, string(os.PathSeparator))
+		if m.Match(matchPath, true) {
+			// ignore
+			return false, h, nil
+		}
+	}
 
 	h, err = w.copyFileToStorage(path)
 	if err != nil {
diff --git a/worktree_test.go b/worktree_test.go
index 24a65eb..2ee830a 100644
--- a/worktree_test.go
+++ b/worktree_test.go
@@ -1370,6 +1370,52 @@ func (s *WorktreeSuite) TestAddDirectoryErrorNotFound(c *C) {
 	c.Assert(h.IsZero(), Equals, true)
 }
 
+func (s *WorktreeSuite) TestAddAll(c *C) {
+	fs := memfs.New()
+	w := &Worktree{
+		r:          s.Repository,
+		Filesystem: fs,
+	}
+
+	err := w.Checkout(&CheckoutOptions{Force: true})
+	c.Assert(err, IsNil)
+
+	idx, err := w.r.Storer.Index()
+	c.Assert(err, IsNil)
+	c.Assert(idx.Entries, HasLen, 9)
+
+	err = util.WriteFile(w.Filesystem, "file1", []byte("file1"), 0644)
+	c.Assert(err, IsNil)
+
+	err = util.WriteFile(w.Filesystem, "file2", []byte("file2"), 0644)
+	c.Assert(err, IsNil)
+
+	err = util.WriteFile(w.Filesystem, "file3", []byte("ignore me"), 0644)
+	c.Assert(err, IsNil)
+
+	w.Excludes = make([]gitignore.Pattern, 0)
+	w.Excludes = append(w.Excludes, gitignore.ParsePattern("file3", nil))
+
+	_, err = w.AddWithOptions(&AddOptions{All: true})
+	c.Assert(err, IsNil)
+
+	idx, err = w.r.Storer.Index()
+	c.Assert(err, IsNil)
+	c.Assert(idx.Entries, HasLen, 11)
+
+	status, err := w.Status()
+	c.Assert(err, IsNil)
+	c.Assert(status, HasLen, 2)
+
+	file1 := status.File("file1")
+	c.Assert(file1.Staging, Equals, Added)
+	file2 := status.File("file2")
+	c.Assert(file2.Staging, Equals, Added)
+	file3 := status.File("file3")
+	c.Assert(file3.Staging, Equals, Untracked)
+	c.Assert(file3.Worktree, Equals, Untracked)
+}
+
 func (s *WorktreeSuite) TestAddGlob(c *C) {
 	fs := memfs.New()
 	w := &Worktree{