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author | Máximo Cuadros <mcuadros@gmail.com> | 2016-09-22 23:41:48 +0200 |
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committer | Máximo Cuadros <mcuadros@gmail.com> | 2016-09-22 23:41:48 +0200 |
commit | 5913aee5004ff5b32c7926dda3af1f946d203f33 (patch) | |
tree | c9b3ce9e4439faf0313749690a3a0e496e32447d /tree_walker.go | |
parent | 001bb130fe6186421f3ddcc556854410edd8d95e (diff) | |
download | go-git-5913aee5004ff5b32c7926dda3af1f946d203f33.tar.gz |
test coverage improved, Remote.Refs and Repository.Refs returns error, TreeWalker -> TreeIter
Diffstat (limited to 'tree_walker.go')
-rw-r--r-- | tree_walker.go | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/tree_walker.go b/tree_walker.go deleted file mode 100644 index cbd81c4..0000000 --- a/tree_walker.go +++ /dev/null @@ -1,113 +0,0 @@ -package git - -import ( - "io" - "path" -) - -const ( - startingStackSize = 8 -) - -const submoduleMode = 0160000 -const directoryMode = 0040000 - -// TreeWalker provides a means of walking through all of the entries in a Tree. -type TreeWalker struct { - stack []treeEntryIter - base string - - r *Repository - t *Tree -} - -// NewTreeWalker returns a new TreeWalker for the given repository and tree. -// -// It is the caller's responsibility to call Close() when finished with the -// tree walker. -func NewTreeWalker(r *Repository, t *Tree) *TreeWalker { - w := TreeWalker{ - stack: make([]treeEntryIter, 0, startingStackSize), - base: "", - r: r, - t: t, - } - w.stack = append(w.stack, treeEntryIter{t, 0}) - return &w -} - -// Next returns the next object from the tree. Objects are returned in order -// and subtrees are included. After the last object has been returned further -// calls to Next() will return io.EOF. -// -// In the current implementation any objects which cannot be found in the -// underlying repository will be skipped automatically. It is possible that this -// may change in future versions. -func (w *TreeWalker) Next() (name string, entry TreeEntry, err error) { - var obj Object - for { - current := len(w.stack) - 1 - if current < 0 { - // Nothing left on the stack so we're finished - err = io.EOF - return - } - - if current > maxTreeDepth { - // We're probably following bad data or some self-referencing tree - err = ErrMaxTreeDepth - return - } - - entry, err = w.stack[current].Next() - if err == io.EOF { - // Finished with the current tree, move back up to the parent - w.stack = w.stack[:current] - w.base, _ = path.Split(w.base) - w.base = path.Clean(w.base) // Remove trailing slash - continue - } - - if err != nil { - return - } - - if entry.Mode == submoduleMode { - err = nil - continue - } - - if entry.Mode.IsDir() { - obj, err = w.r.Tree(entry.Hash) - } - - name = path.Join(w.base, entry.Name) - - if err != nil { - return - } - - break - } - - if t, ok := obj.(*Tree); ok { - w.stack = append(w.stack, treeEntryIter{t, 0}) - w.base = path.Join(w.base, entry.Name) - } - - return -} - -// Tree returns the tree that the tree walker most recently operated on. -func (w *TreeWalker) Tree() *Tree { - current := len(w.stack) - 1 - if current < 0 { - return nil - } - return w.stack[current].t -} - -// Close releases any resources used by the TreeWalker. -func (w *TreeWalker) Close() { - w.stack = nil -} |