diff options
Diffstat (limited to 'worktree_commit.go')
| -rw-r--r-- | worktree_commit.go | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/worktree_commit.go b/worktree_commit.go index dc79569..e927721 100644 --- a/worktree_commit.go +++ b/worktree_commit.go @@ -2,6 +2,7 @@ package git import ( "bytes" + "errors" "path" "sort" "strings" @@ -16,6 +17,12 @@ import ( "github.com/go-git/go-billy/v5" ) +var ( + // ErrEmptyCommit occurs when a commit is attempted using a clean + // working tree, with no changes to be committed. + ErrEmptyCommit = errors.New("cannot create empty commit: clean working tree") +) + // Commit stores the current contents of the index in a new commit along with // a log message from the user describing the changes. func (w *Worktree) Commit(msg string, opts *CommitOptions) (plumbing.Hash, error) { @@ -39,7 +46,7 @@ func (w *Worktree) Commit(msg string, opts *CommitOptions) (plumbing.Hash, error s: w.r.Storer, } - tree, err := h.BuildTree(idx) + tree, err := h.BuildTree(idx, opts) if err != nil { return plumbing.ZeroHash, err } @@ -145,7 +152,11 @@ type buildTreeHelper struct { // BuildTree builds the tree objects and push its to the storer, the hash // of the root tree is returned. -func (h *buildTreeHelper) BuildTree(idx *index.Index) (plumbing.Hash, error) { +func (h *buildTreeHelper) BuildTree(idx *index.Index, opts *CommitOptions) (plumbing.Hash, error) { + if len(idx.Entries) == 0 && (opts == nil || !opts.AllowEmptyCommits) { + return plumbing.ZeroHash, ErrEmptyCommit + } + const rootNode = "" h.trees = map[string]*object.Tree{rootNode: {}} h.entries = map[string]*object.TreeEntry{} |