Add first_parent to find-commits and count-commits

7 files changed, 180 insertions, 126 deletions

diff --git a/changelogs/unreleased/add-first-parent-to-find-commits.yml b/changelogs/unreleased/add-first-parent-to-find-commits.yml
new file mode 100644
index 000000000..36058f078
--- /dev/null
+++ b/changelogs/unreleased/add-first-parent-to-find-commits.yml
@@ -0,0 +1,5 @@
+---
+title: 'FindCommits/CommitCounts: Add support for `first_parent` parameter'
+merge_request: 1463
+author: jhenkens
+type: added
diff --git a/internal/service/commit/count_commits.go b/internal/service/commit/count_commits.go
index 1f96bb2fc..2f3de307f 100644
--- a/internal/service/commit/count_commits.go
+++ b/internal/service/commit/count_commits.go
@@ -37,6 +37,9 @@ func (s *server) CountCommits(ctx context.Context, in *gitalypb.CountCommitsRequ
 	if maxCount := in.GetMaxCount(); maxCount != 0 {
 		cmdArgs = append(cmdArgs, fmt.Sprintf("--max-count=%d", maxCount))
 	}
+	if in.GetFirstParent() {
+		cmdArgs = append(cmdArgs, "--first-parent")
+	}
 	if path := in.GetPath(); path != nil {
 		cmdArgs = append(cmdArgs, "--", string(path))
 	}
diff --git a/internal/service/commit/find_commits.go b/internal/service/commit/find_commits.go
index 3e4709353..cad71f4c3 100644
--- a/internal/service/commit/find_commits.go
+++ b/internal/service/commit/find_commits.go
@@ -186,6 +186,9 @@ func getLogCommandFlags(req *gitalypb.FindCommitsRequest) []string {
 	if req.GetRevision() != nil {
 		args = append(args, string(req.GetRevision()))
 	}
+	if req.GetFirstParent() {
+		args = append(args, "--first-parent")
+	}
 	if len(req.GetPaths()) > 0 {
 		args = append(args, "--")
 		for _, path := range req.GetPaths() {
diff --git a/internal/service/commit/find_commits_test.go b/internal/service/commit/find_commits_test.go
index b68ac1def..dd4c4d58f 100644
--- a/internal/service/commit/find_commits_test.go
+++ b/internal/service/commit/find_commits_test.go
@@ -266,6 +266,27 @@ func TestSuccessfulFindCommitsRequest(t *testing.T) {
 			},
 			minCommits: 90,
 		},
+		{
+			desc: "first parents",
+			request: &gitalypb.FindCommitsRequest{
+				Repository:  testRepo,
+				Revision:    []byte("e63f41fe459e62e1228fcef60d7189127aeba95a"),
+				FirstParent: true,
+				Limit:       10,
+			},
+			ids: []string{
+				"e63f41fe459e62e1228fcef60d7189127aeba95a",
+				"b83d6e391c22777fca1ed3012fce84f633d7fed0",
+				"1b12f15a11fc6e62177bef08f47bc7b5ce50b141",
+				"6907208d755b60ebeacb2e9dfea74c92c3449a1f",
+				"281d3a76f31c812dbf48abce82ccf6860adedd81",
+				"54fcc214b94e78d7a41a9a8fe6d87a5e59500e51",
+				"be93687618e4b132087f430a4d8fc3a609c9b77c",
+				"5f923865dde3436854e9ceb9cdb7815618d4e849",
+				"d2d430676773caa88cdaf7c55944073b2fd5561a",
+				"59e29889be61e6e0e5e223bfa9ac2721d31605b8",
+			},
+		},
 	}
 
 	for _, tc := range testCases {
diff --git a/proto/commit.proto b/proto/commit.proto
index 6a73e76c0..35ce65c43 100644
--- a/proto/commit.proto
+++ b/proto/commit.proto
@@ -216,6 +216,7 @@ message CountCommitsRequest {
   int32 max_count = 6;
   // all and revision are mutually exclusive
   bool all = 7;
+  bool first_parent = 8;
 }
 
 message CountCommitsResponse {
@@ -341,6 +342,7 @@ message FindCommitsRequest {
   google.protobuf.Timestamp before = 10;
   // all and revision are mutually exclusive
   bool all = 11;
+  bool first_parent = 12;
 }
 
 // A single 'page' of the result set
diff --git a/proto/go/gitalypb/commit.pb.go b/proto/go/gitalypb/commit.pb.go
index e30924901..aabc2b7f3 100644
--- a/proto/go/gitalypb/commit.pb.go
+++ b/proto/go/gitalypb/commit.pb.go
@@ -553,6 +553,7 @@ type CountCommitsRequest struct {
 	MaxCount   int32                `protobuf:"varint,6,opt,name=max_count,json=maxCount,proto3" json:"max_count,omitempty"`
 	// all and revision are mutually exclusive
 	All                  bool     `protobuf:"varint,7,opt,name=all,proto3" json:"all,omitempty"`
+	FirstParent          bool     `protobuf:"varint,8,opt,name=first_parent,json=firstParent,proto3" json:"first_parent,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -632,6 +633,13 @@ func (m *CountCommitsRequest) GetAll() bool {
 	return false
 }
 
+func (m *CountCommitsRequest) GetFirstParent() bool {
+	if m != nil {
+		return m.FirstParent
+	}
+	return false
+}
+
 type CountCommitsResponse struct {
 	Count                int32    `protobuf:"varint,1,opt,name=count,proto3" json:"count,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
@@ -1448,6 +1456,7 @@ type FindCommitsRequest struct {
 	Before      *timestamp.Timestamp `protobuf:"bytes,10,opt,name=before,proto3" json:"before,omitempty"`
 	// all and revision are mutually exclusive
 	All                  bool     `protobuf:"varint,11,opt,name=all,proto3" json:"all,omitempty"`
+	FirstParent          bool     `protobuf:"varint,12,opt,name=first_parent,json=firstParent,proto3" json:"first_parent,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -1555,6 +1564,13 @@ func (m *FindCommitsRequest) GetAll() bool {
 	return false
 }
 
+func (m *FindCommitsRequest) GetFirstParent() bool {
+	if m != nil {
+		return m.FirstParent
+	}
+	return false
+}
+
 // A single 'page' of the result set
 type FindCommitsResponse struct {
 	Commits              []*GitCommit `protobuf:"bytes,1,rep,name=commits,proto3" json:"commits,omitempty"`
@@ -2643,132 +2659,134 @@ func init() {
 func init() { proto.RegisterFile("commit.proto", fileDescriptor_db7163399a465f48) }
 
 var fileDescriptor_db7163399a465f48 = []byte{
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+	0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/ruby/proto/gitaly/commit_pb.rb b/ruby/proto/gitaly/commit_pb.rb
index 36935c0ef..6cb34706f 100644
--- a/ruby/proto/gitaly/commit_pb.rb
+++ b/ruby/proto/gitaly/commit_pb.rb
@@ -58,6 +58,7 @@ Google::Protobuf::DescriptorPool.generated_pool.build do
     optional :path, :bytes, 5
     optional :max_count, :int32, 6
     optional :all, :bool, 7
+    optional :first_parent, :bool, 8
   end
   add_message "gitaly.CountCommitsResponse" do
     optional :count, :int32, 1
@@ -150,6 +151,7 @@ Google::Protobuf::DescriptorPool.generated_pool.build do
     optional :after, :message, 9, "google.protobuf.Timestamp"
     optional :before, :message, 10, "google.protobuf.Timestamp"
     optional :all, :bool, 11
+    optional :first_parent, :bool, 12
   end
   add_message "gitaly.FindCommitsResponse" do
     repeated :commits, :message, 1, "gitaly.GitCommit"