1 files changed, 219 insertions, 0 deletions
diff --git a/vendor/github.com/libgit2/git2go/walk.go b/vendor/github.com/libgit2/git2go/walk.go
new file mode 100644
index 000000000..287edb631
--- /dev/null
+++ b/vendor/github.com/libgit2/git2go/walk.go
@@ -0,0 +1,219 @@
+package git
+
+/*
+#include <git2.h>
+*/
+import "C"
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+// RevWalk
+
+type SortType uint
+
+const (
+	SortNone        SortType = C.GIT_SORT_NONE
+	SortTopological SortType = C.GIT_SORT_TOPOLOGICAL
+	SortTime        SortType = C.GIT_SORT_TIME
+	SortReverse     SortType = C.GIT_SORT_REVERSE
+)
+
+type RevWalk struct {
+	ptr  *C.git_revwalk
+	repo *Repository
+}
+
+func revWalkFromC(repo *Repository, c *C.git_revwalk) *RevWalk {
+	v := &RevWalk{ptr: c, repo: repo}
+	runtime.SetFinalizer(v, (*RevWalk).Free)
+	return v
+}
+
+func (v *RevWalk) Reset() {
+	C.git_revwalk_reset(v.ptr)
+	runtime.KeepAlive(v)
+}
+
+func (v *RevWalk) Push(id *Oid) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ecode := C.git_revwalk_push(v.ptr, id.toC())
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(id)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) PushGlob(glob string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	cstr := C.CString(glob)
+	defer C.free(unsafe.Pointer(cstr))
+
+	ecode := C.git_revwalk_push_glob(v.ptr, cstr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) PushRange(r string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	cstr := C.CString(r)
+	defer C.free(unsafe.Pointer(cstr))
+
+	ecode := C.git_revwalk_push_range(v.ptr, cstr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) PushRef(r string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	cstr := C.CString(r)
+	defer C.free(unsafe.Pointer(cstr))
+
+	ecode := C.git_revwalk_push_ref(v.ptr, cstr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) PushHead() (err error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ecode := C.git_revwalk_push_head(v.ptr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		err = MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) Hide(id *Oid) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ecode := C.git_revwalk_hide(v.ptr, id.toC())
+	runtime.KeepAlive(v)
+	runtime.KeepAlive(id)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) HideGlob(glob string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	cstr := C.CString(glob)
+	defer C.free(unsafe.Pointer(cstr))
+
+	ecode := C.git_revwalk_hide_glob(v.ptr, cstr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) HideRef(r string) error {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	cstr := C.CString(r)
+	defer C.free(unsafe.Pointer(cstr))
+
+	ecode := C.git_revwalk_hide_ref(v.ptr, cstr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		return MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) HideHead() (err error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ecode := C.git_revwalk_hide_head(v.ptr)
+	runtime.KeepAlive(v)
+	if ecode < 0 {
+		err = MakeGitError(ecode)
+	}
+	return nil
+}
+
+func (v *RevWalk) Next(id *Oid) (err error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_revwalk_next(id.toC(), v.ptr)
+	runtime.KeepAlive(v)
+	switch {
+	case ret < 0:
+		err = MakeGitError(ret)
+	}
+
+	return
+}
+
+type RevWalkIterator func(commit *Commit) bool
+
+func (v *RevWalk) Iterate(fun RevWalkIterator) (err error) {
+	oid := new(Oid)
+	for {
+		err = v.Next(oid)
+		if IsErrorCode(err, ErrIterOver) {
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+
+		commit, err := v.repo.LookupCommit(oid)
+		if err != nil {
+			return err
+		}
+
+		cont := fun(commit)
+		if !cont {
+			break
+		}
+	}
+
+	return nil
+}
+
+func (v *RevWalk) SimplifyFirstParent() {
+	C.git_revwalk_simplify_first_parent(v.ptr)
+	runtime.KeepAlive(v)
+}
+
+func (v *RevWalk) Sorting(sm SortType) {
+	C.git_revwalk_sorting(v.ptr, C.uint(sm))
+	runtime.KeepAlive(v)
+}
+
+func (v *RevWalk) Free() {
+	runtime.SetFinalizer(v, nil)
+	C.git_revwalk_free(v.ptr)
+}