Add orch strict worktree dispatch

internal/cli/orch/git_test_helpers_test.go

@@ -0,0 +1,53 @@
+package orch
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func initGitRepo(t *testing.T) string {
+	t.Helper()
+
+	repoPath := filepath.Join(t.TempDir(), "repo")
+	if err := os.MkdirAll(repoPath, 0o755); err != nil {
+		t.Fatalf("mkdir repo path: %v", err)
+	}
+
+	runGitCommand(t, repoPath, "init")
+	runGitCommand(t, repoPath, "config", "user.email", "test@example.com")
+	runGitCommand(t, repoPath, "config", "user.name", "Test User")
+
+	readmePath := filepath.Join(repoPath, "README.md")
+	if err := os.WriteFile(readmePath, []byte("hello\n"), 0o644); err != nil {
+		t.Fatalf("write README.md: %v", err)
+	}
+
+	runGitCommand(t, repoPath, "add", "README.md")
+	runGitCommand(t, repoPath, "commit", "-m", "init")
+
+	return repoPath
+}
+
+func gitHeadCommit(t *testing.T, repoPath string) string {
+	t.Helper()
+
+	cmd := exec.Command("git", "-C", repoPath, "rev-parse", "--verify", "HEAD^{commit}")
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("git rev-parse HEAD in %s: %v\n%s", repoPath, err, output)
+	}
+	return strings.TrimSpace(string(output))
+}
+
+func runGitCommand(t *testing.T, repoPath string, args ...string) {
+	t.Helper()
+
+	cmd := exec.Command("git", append([]string{"-C", repoPath}, args...)...)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("git %v in %s: %v\n%s", args, repoPath, err, output)
+	}
+}