fix(git-worktree): ignore existing locked service worktree when re-adding

* Use git worktree add with double `--force` argument. From git docs:
   > To add a missing but locked working tree path, specify --force twice.
* Added test for locked worktree case.

Signed-off-by: Timofey Kirillov <timofey.kirillov@flant.com>

Author: distorhead

pkg/true_git/git_cmd_test.go

@@ -25,6 +25,12 @@ var _ = Describe("Git command", func() {
 			"init",
 		)
 
+		utils.RunSucceedCommand(
+			gitRepoPath,
+			"git",
+			"checkout", "-b", "main",
+		)
+
 		utils.RunSucceedCommand(
 			gitRepoPath,
 			"git",

pkg/true_git/service_branch_test.go

@@ -31,6 +31,13 @@ var _ = Describe("SyncSourceWorktreeWithServiceBranch", func() {
 			"-c", "init.defaultBranch=main",
 			"init",
 		)
+
+		utils.RunSucceedCommand(
+			sourceWorkTreeDir,
+			"git",
+			"checkout", "-b", "main",
+		)
+
 		gitDir = filepath.Join(sourceWorkTreeDir, ".git")
 
 		utils.RunSucceedCommand(

pkg/true_git/work_tree.go

@@ -212,7 +212,7 @@ func switchWorkTree(ctx context.Context, repoDir, workTreeDir, commit string, wi
 	_, err := os.Stat(workTreeDir)
 	switch {
 	case os.IsNotExist(err):
-		wtAddCmd := NewGitCmd(ctx, &GitCmdOptions{RepoDir: repoDir}, "worktree", "add", "--force", "--detach", workTreeDir, commit)
+		wtAddCmd := NewGitCmd(ctx, &GitCmdOptions{RepoDir: repoDir}, "worktree", "add", "--force", "--force", "--detach", workTreeDir, commit)
 		if err = wtAddCmd.Run(ctx); err != nil {
 			return fmt.Errorf("git worktree add command failed: %w", err)
 		}

pkg/true_git/work_tree_test.go

@@ -39,6 +39,59 @@ var _ = Describe("Work tree helpers", func() {
 		})
 	})
 
+	When("side worktree was previously added and locked", func() {
+		When("no submodules are used", func() {
+			var mainWtDir, sideWtDir string
+
+			BeforeEach(func() {
+				mainWtDir = filepath.Join(SuiteData.TestDirPath, "main-wt")
+				sideWtDir = filepath.Join(SuiteData.TestDirPath, "side-wt")
+
+				Expect(os.MkdirAll(mainWtDir, os.ModePerm)).To(Succeed())
+
+				utils.RunSucceedCommand(
+					mainWtDir,
+					"git",
+					"-c", "init.defaultBranch=main",
+					"init",
+				)
+
+				utils.RunSucceedCommand(
+					mainWtDir,
+					"git",
+					"checkout", "-b", "main",
+				)
+
+				utils.RunSucceedCommand(
+					mainWtDir,
+					"git",
+					"commit", "--allow-empty", "-m", "Initial commit",
+				)
+
+				utils.RunSucceedCommand(
+					mainWtDir,
+					"git", "worktree", "add", sideWtDir,
+				)
+
+				utils.RunSucceedCommand(
+					mainWtDir,
+					"git", "worktree", "lock", sideWtDir,
+				)
+
+				err := os.RemoveAll(sideWtDir)
+				Expect(err).To(Succeed())
+			})
+
+			It("should replace worktree without errors", func() {
+				ctx := context.Background()
+
+				commit := getHeadCommit(ctx, mainWtDir)
+
+				Expect(switchWorkTree(ctx, mainWtDir, sideWtDir, commit, false)).To(Succeed())
+			})
+		})
+	})
+
 	Describe("verifyWorkTreeConsistency", func() {
 		var mainWtDir, sideWtDir string
 		BeforeEach(func() {
@@ -54,6 +107,12 @@ var _ = Describe("Work tree helpers", func() {
 				"init",
 			)
 
+			utils.RunSucceedCommand(
+				mainWtDir,
+				"git",
+				"checkout", "-b", "main",
+			)
+
 			utils.RunSucceedCommand(
 				mainWtDir,
 				"git",
@@ -84,3 +143,17 @@ var _ = Describe("Work tree helpers", func() {
 		})
 	})
 })
+
+func getHeadCommit(ctx context.Context, repoDir string) string {
+	refs, err := ShowRef(ctx, repoDir)
+	Expect(err).To(Succeed())
+
+	for _, ref := range refs.Refs {
+		if ref.IsHEAD {
+			return ref.Commit
+		}
+	}
+
+	Expect(fmt.Errorf("head commit not found")).NotTo(HaveOccurred())
+	return ""
+}