diff options
| -rw-r--r-- | merge.go | 246 | ||||
| -rw-r--r-- | merge_test.go | 27 | ||||
| -rw-r--r-- | repository.go | 6 | ||||
| -rw-r--r-- | wrapper.c | 1 |
4 files changed, 278 insertions, 2 deletions
diff --git a/merge.go b/merge.go new file mode 100644 index 0000000..d5f5cb9 --- /dev/null +++ b/merge.go @@ -0,0 +1,246 @@ +package git + +/* +#include <git2.h> +#include <git2/errors.h> + +extern git_merge_head** _go_git_make_merge_head_array(size_t len); +extern void _go_git_merge_head_array_set(git_merge_head** array, git_merge_head* ptr, size_t n); +extern git_merge_head* _go_git_merge_head_array_get(git_merge_head** array, size_t n); + +*/ +import "C" +import ( + "runtime" + "unsafe" +) + +type MergeHead struct { + ptr *C.git_merge_head +} + +func newMergeHeadFromC(c *C.git_merge_head) *MergeHead { + mh := &MergeHead{ptr: c} + runtime.SetFinalizer(mh, (*MergeHead).Free) + return mh +} + +func (mh *MergeHead) Free() { + runtime.SetFinalizer(mh, nil) + C.git_merge_head_free(mh.ptr) +} + +func (r *Repository) MergeHeadFromFetchHead(branchName string, remoteURL string, oid *Oid) (*MergeHead, error) { + mh := &MergeHead{} + + cbranchName := C.CString(branchName) + defer C.free(unsafe.Pointer(cbranchName)) + + cremoteURL := C.CString(remoteURL) + defer C.free(unsafe.Pointer(cremoteURL)) + + ret := C.git_merge_head_from_fetchhead(&mh.ptr, r.ptr, cbranchName, cremoteURL, oid.toC()) + if ret < 0 { + return nil, MakeGitError(ret) + } + runtime.SetFinalizer(mh, (*MergeHead).Free) + return mh, nil +} + +func (r *Repository) MergeHeadFromId(oid *Oid) (*MergeHead, error) { + mh := &MergeHead{} + + ret := C.git_merge_head_from_id(&mh.ptr, r.ptr, oid.toC()) + if ret < 0 { + return nil, MakeGitError(ret) + } + runtime.SetFinalizer(mh, (*MergeHead).Free) + return mh, nil +} + +func (r *Repository) MergeHeadFromRef(ref *Reference) (*MergeHead, error) { + mh := &MergeHead{} + + ret := C.git_merge_head_from_ref(&mh.ptr, r.ptr, ref.ptr) + if ret < 0 { + return nil, MakeGitError(ret) + } + runtime.SetFinalizer(mh, (*MergeHead).Free) + return mh, nil +} + +type MergeFlag int + +const ( + MergeFlagDefault MergeFlag = C.GIT_MERGE_DEFAULT + MergeNoFastForward = C.GIT_MERGE_NO_FASTFORWARD + MergeFastForwardOnly = C.GIT_MERGE_FASTFORWARD_ONLY +) + +type MergeOptions struct { + Version uint + Flags MergeFlag + + TreeOptions MergeTreeOptions + //TODO: CheckoutOptions CheckoutOptions +} + +func DefaultMergeOptions() MergeOptions { + options := MergeOptions{Version: 1} + options.TreeOptions = DefaultMergeTreeOptions() + return options +} + +func (mo *MergeOptions) toC() *C.git_merge_opts { + return &C.git_merge_opts{ + version: C.uint(mo.Version), + merge_flags: C.git_merge_flags_t(mo.Flags), + merge_tree_opts: *mo.TreeOptions.toC(), + } +} + +type MergeTreeFlag int + +const ( + MergeTreeFindRenames MergeTreeFlag = 1 << 0 +) + +type MergeFileFavorType int + +const ( + MergeFileFavorNormal MergeFileFavorType = 0 + MergeFileFavorOurs = 1 + MergeFileFavorTheirs = 2 + MergeFileFavorUnion = 3 +) + +type MergeTreeOptions struct { + Version uint + Flags MergeTreeFlag + RenameThreshold uint + TargetLimit uint + //TODO: SimilarityMetric *DiffSimilarityMetric + FileFavor MergeFileFavorType +} + +func DefaultMergeTreeOptions() MergeTreeOptions { + return MergeTreeOptions{Version: 1} +} + +func (mo *MergeTreeOptions) toC() *C.git_merge_tree_opts { + return &C.git_merge_tree_opts{ + version: C.uint(mo.Version), + flags: C.git_merge_tree_flag_t(mo.Flags), + rename_threshold: C.uint(mo.RenameThreshold), + target_limit: C.uint(mo.TargetLimit), + file_favor: C.git_merge_file_favor_t(mo.FileFavor), + } +} + +type MergeResult struct { + ptr *C.git_merge_result +} + +func newMergeResultFromC(c *C.git_merge_result) *MergeResult { + mr := &MergeResult{ptr: c} + runtime.SetFinalizer(mr, (*MergeResult).Free) + return mr +} + +func (mr *MergeResult) Free() { + runtime.SetFinalizer(mr, nil) + C.git_merge_result_free(mr.ptr) +} + +func (mr *MergeResult) IsFastForward() bool { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + ret := C.git_merge_result_is_fastforward(mr.ptr) + return ret != 0 +} + +func (mr *MergeResult) IsUpToDate() bool { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + ret := C.git_merge_result_is_uptodate(mr.ptr) + return ret != 0 +} + +func (mr *MergeResult) FastForwardId() (*Oid, error) { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + var oid C.git_oid + ret := C.git_merge_result_fastforward_id(&oid, mr.ptr) + if ret < 0 { + return nil, MakeGitError(ret) + } + return newOidFromC(&oid), nil +} + +func (r *Repository) Merge(theirHeads []*MergeHead, options MergeOptions) (*MergeResult, error) { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + var result *C.git_merge_result + + copts := options.toC() + gmerge_head_array := make([]*C.git_merge_head, len(theirHeads)) + for i := 0; i < len(theirHeads); i++ { + gmerge_head_array[i] = theirHeads[i].ptr + } + ptr := unsafe.Pointer(&gmerge_head_array[0]) + err := C.git_merge(&result, r.ptr, (**C.git_merge_head)(ptr), C.size_t(len(theirHeads)), copts) + if err < 0 { + return nil, MakeGitError(err) + } + return newMergeResultFromC(result), nil +} + +func (r *Repository) MergeCommits(ours *Commit, theirs *Commit, options MergeTreeOptions) (*Index, error) { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + copts := options.toC() + + idx := &Index{} + + ret := C.git_merge_commits(&idx.ptr, r.ptr, ours.ptr, theirs.ptr, copts) + if ret < 0 { + return nil, MakeGitError(ret) + } + runtime.SetFinalizer(idx, (*Index).Free) + return idx, nil +} + +func (r *Repository) MergeTrees(ancestor *Tree, ours *Tree, theirs *Tree, options MergeTreeOptions) (*Index, error) { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + copts := options.toC() + + idx := &Index{} + + ret := C.git_merge_trees(&idx.ptr, r.ptr, ancestor.ptr, ours.ptr, theirs.ptr, copts) + if ret < 0 { + return nil, MakeGitError(ret) + } + runtime.SetFinalizer(idx, (*Index).Free) + return idx, nil +} + +func (r *Repository) MergeBase(one *Oid, two *Oid) (*Oid, error) { + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + var oid C.git_oid + ret := C.git_merge_base(&oid, r.ptr, one.toC(), two.toC()) + if ret < 0 { + return nil, MakeGitError(ret) + } + return newOidFromC(&oid), nil +} + +//TODO: int git_merge_base_many(git_oid *out, git_repository *repo, size_t length, const git_oid input_array[]); diff --git a/merge_test.go b/merge_test.go new file mode 100644 index 0000000..9bf9b9d --- /dev/null +++ b/merge_test.go @@ -0,0 +1,27 @@ +package git + +import ( + "testing" +) + +func Test_Merge_With_Self(t *testing.T) { + + repo := createTestRepo(t) + seedTestRepo(t, repo) + + master, err := repo.LookupReference("refs/heads/master") + checkFatal(t, err) + + mergeHead, err := repo.MergeHeadFromRef(master) + checkFatal(t, err) + + options := DefaultMergeOptions() + mergeHeads := make([]*MergeHead, 1) + mergeHeads[0] = mergeHead + results, err := repo.Merge(mergeHeads, options) + checkFatal(t, err) + + if !results.IsUpToDate() { + t.Fatal("Expected up to date") + } +} diff --git a/repository.go b/repository.go index d6eadc8..c1ee9d3 100644 --- a/repository.go +++ b/repository.go @@ -366,7 +366,8 @@ func (v *Repository) EnsureLog(name string) error { runtime.LockOSThread() defer runtime.UnlockOSThread() - if ret := C.git_reference_ensure_log(v.ptr, cname); ret < 0 { + ret := C.git_reference_ensure_log(v.ptr, cname) + if ret < 0 { return MakeGitError(ret) } @@ -399,7 +400,8 @@ func (v *Repository) DwimReference(name string) (*Reference, error) { defer runtime.UnlockOSThread() var ptr *C.git_reference - if ret := C.git_reference_dwim(&ptr, v.ptr, cname); ret < 0 { + ret := C.git_reference_dwim(&ptr, v.ptr, cname) + if ret < 0 { return nil, MakeGitError(ret) } @@ -62,4 +62,5 @@ int _go_git_blob_create_fromchunks(git_oid *id, { return git_blob_create_fromchunks(id, repo, hintpath, _go_blob_chunk_cb, payload); } + /* EOF */ |