refactor: migrate from go-git to go-getter (#2512)

taskfile/node_git_test.go

@@ -102,3 +102,146 @@ func TestGitNode_CacheKey(t *testing.T) {
 		assert.Equal(t, tt.expectedKey, key)
 	}
 }
+
+func TestGitNode_buildURL(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name        string
+		entrypoint  string
+		expectedURL string
+	}{
+		{
+			name:        "HTTPS with ref",
+			entrypoint:  "https://github.com/foo/bar.git//Taskfile.yml?ref=main",
+			expectedURL: "git::https://github.com/foo/bar.git?ref=main&depth=1",
+		},
+		{
+			name:        "SSH with ref",
+			entrypoint:  "git@github.com:foo/bar.git//Taskfile.yml?ref=main",
+			expectedURL: "git::ssh://git@github.com/foo/bar.git?ref=main&depth=1",
+		},
+		{
+			name:        "HTTPS with tag ref",
+			entrypoint:  "https://github.com/foo/bar.git//Taskfile.yml?ref=v1.0.0",
+			expectedURL: "git::https://github.com/foo/bar.git?ref=v1.0.0&depth=1",
+		},
+		{
+			name:        "HTTPS without ref (uses remote HEAD)",
+			entrypoint:  "https://github.com/foo/bar.git//Taskfile.yml",
+			expectedURL: "git::https://github.com/foo/bar.git?ref=HEAD&depth=1",
+		},
+		{
+			name:        "SSH with directory path",
+			entrypoint:  "git@github.com:foo/bar.git//directory/Taskfile.yml?ref=dev",
+			expectedURL: "git::ssh://git@github.com/foo/bar.git?ref=dev&depth=1",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			node, err := NewGitNode(tt.entrypoint, "", false)
+			require.NoError(t, err)
+			gotURL := node.buildURL()
+			assert.Equal(t, tt.expectedURL, gotURL)
+		})
+	}
+}
+
+func TestRepoCacheKey_SameRepoSameRef(t *testing.T) {
+	t.Parallel()
+
+	// Same repo, same ref, different files should have SAME cache key
+	node1, err := NewGitNode("https://github.com/foo/bar.git//file1.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	node2, err := NewGitNode("https://github.com/foo/bar.git//dir/file2.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	key1 := node1.repoCacheKey()
+	key2 := node2.repoCacheKey()
+
+	assert.Equal(t, key1, key2, "Same repo+ref should generate same cache key regardless of file path")
+}
+
+func TestRepoCacheKey_SameRepoDifferentRef(t *testing.T) {
+	t.Parallel()
+
+	// Same repo, different ref should have DIFFERENT cache keys
+	node1, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	node2, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=dev", "", false)
+	require.NoError(t, err)
+
+	key1 := node1.repoCacheKey()
+	key2 := node2.repoCacheKey()
+
+	assert.NotEqual(t, key1, key2, "Different refs should generate different cache keys")
+}
+
+func TestRepoCacheKey_DifferentRepos(t *testing.T) {
+	t.Parallel()
+
+	// Different repos should have DIFFERENT cache keys
+	node1, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	node2, err := NewGitNode("https://github.com/foo/other.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	key1 := node1.repoCacheKey()
+	key2 := node2.repoCacheKey()
+
+	assert.NotEqual(t, key1, key2, "Different repos should generate different cache keys")
+}
+
+func TestRepoCacheKey_NoRefVsHead(t *testing.T) {
+	t.Parallel()
+
+	// No ref (defaults to HEAD) vs explicit HEAD should have SAME cache key
+	node1, err := NewGitNode("https://github.com/foo/bar.git//file.yml", "", false)
+	require.NoError(t, err)
+
+	node2, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=HEAD", "", false)
+	require.NoError(t, err)
+
+	key1 := node1.repoCacheKey()
+	key2 := node2.repoCacheKey()
+
+	assert.Equal(t, key1, key2, "No ref and explicit HEAD should generate same cache key")
+}
+
+func TestRepoCacheKey_SSHvsHTTPS(t *testing.T) {
+	t.Parallel()
+
+	// SSH vs HTTPS pointing to same repo should have SAME cache key
+	// They clone the same repo, so we want to share the cache
+	node1, err := NewGitNode("git@github.com:foo/bar.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	node2, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	key1 := node1.repoCacheKey()
+	key2 := node2.repoCacheKey()
+
+	assert.Equal(t, key1, key2, "SSH and HTTPS for same repo should share cache")
+}
+
+func TestRepoCacheKey_Consistency(t *testing.T) {
+	t.Parallel()
+
+	// Calling repoCacheKey multiple times on same node should return same key
+	node, err := NewGitNode("https://github.com/foo/bar.git//file.yml?ref=main", "", false)
+	require.NoError(t, err)
+
+	key1 := node.repoCacheKey()
+	key2 := node.repoCacheKey()
+	key3 := node.repoCacheKey()
+
+	assert.Equal(t, key1, key2)
+	assert.Equal(t, key2, key3)
+}