feat: add partial option support to GitBackend

commands_test.go

@@ -15,6 +15,7 @@ type _cloneArgs struct {
 	recursive bool
 	bare      bool
 	silent    bool
+	partial   string
 }
 
 type _updateArgs struct {
@@ -41,6 +42,7 @@ func withFakeGitBackend(t *testing.T, block func(*testing.T, string, *_cloneArgs
 				recursive: vg.recursive,
 				bare:      vg.bare,
 				silent:    vg.silent,
+				partial:   vg.partial,
 			}
 			return nil
 		},

vcs.go

@@ -44,7 +44,7 @@ type vcsGetOption struct {
 	url                              *url.URL
 	dir                              string
 	recursive, shallow, silent, bare bool
-	branch                           string
+	branch, partial                  string
 }
 
 // GitBackend is the VCSBackend of git
@@ -70,6 +70,11 @@ var GitBackend = &VCSBackend{
 		if vg.bare {
 			args = append(args, "--bare")
 		}
+		if vg.partial == "blobless" {
+			args = append(args, "--filter=blob:none")
+		} else if vg.partial == "treeless" {
+			args = append(args, "--filter=tree:0")
+		}
 		args = append(args, vg.url.String(), vg.dir)
 
 		return run(vg.silent)("git", args...)

vcs_test.go

@@ -136,6 +136,26 @@ func TestVCSBackend(t *testing.T) {
 			})
 		},
 		expect: []string{"git", "clone", "--bare", remoteDummyURL.String(), localDir},
+	}, {
+		name: "[git] (partial) blobless clone",
+		f: func() error {
+			return GitBackend.Clone(&vcsGetOption{
+				url:     remoteDummyURL,
+				dir:     localDir,
+				partial: "blobless",
+			})
+		},
+		expect: []string{"git", "clone", "--filter=blob:none", remoteDummyURL.String(), localDir},
+	}, {
+		name: "[git] (partial) treeless clone",
+		f: func() error {
+			return GitBackend.Clone(&vcsGetOption{
+				url:     remoteDummyURL,
+				dir:     localDir,
+				partial: "treeless",
+			})
+		},
+		expect: []string{"git", "clone", "--filter=tree:0", remoteDummyURL.String(), localDir},
 	}, {
 		name: "[git] switch git-svn on update",
 		f: func() error {