fix(control): repair repository cache origin

pkg/control/vcs.go

@@ -563,9 +563,9 @@ func prepareRepositoryRevisionAt(
 			return preparedRepositoryRevision{}, fmt.Errorf("clone repository: %w", err)
 		}
 	}
-	configuredURL, err := gitWithEnvironment(ctx, cachePath, environment, "remote", "get-url", "origin")
+	configuredURL, err := ensureRepositoryOrigin(ctx, cachePath, environment, repositoryURL)
 	if err != nil {
-		return preparedRepositoryRevision{}, fmt.Errorf("resolve repository origin: %w", err)
+		return preparedRepositoryRevision{}, err
 	}
 	if configuredURL != repositoryURL {
 		return preparedRepositoryRevision{}, fmt.Errorf("repository cache origin %q does not match requested source", configuredURL)
@@ -624,6 +624,34 @@ func prepareRepositoryRevisionAt(
 	}, nil
 }
 
+// ensureRepositoryOrigin repairs only the absent-origin case in a Codefly-owned
+// cache projection. The request URL is authoritative when no origin exists;
+// an existing origin is returned unchanged so the caller can reject a source
+// mismatch instead of silently retargeting project state.
+func ensureRepositoryOrigin(ctx context.Context, cachePath string, environment []string, repositoryURL string) (string, error) {
+	remotes, err := gitWithEnvironment(ctx, cachePath, environment, "remote")
+	if err != nil {
+		return "", fmt.Errorf("list repository remotes: %w", err)
+	}
+	hasOrigin := false
+	for _, remote := range strings.Split(remotes, "\n") {
+		if strings.TrimSpace(remote) == "origin" {
+			hasOrigin = true
+			break
+		}
+	}
+	if !hasOrigin {
+		if _, addErr := gitWithEnvironment(ctx, cachePath, environment, "remote", "add", "origin", repositoryURL); addErr != nil {
+			return "", fmt.Errorf("repair missing repository origin: %w", addErr)
+		}
+	}
+	configuredURL, err := gitWithEnvironment(ctx, cachePath, environment, "remote", "get-url", "origin")
+	if err != nil {
+		return "", fmt.Errorf("resolve repository origin: %w", err)
+	}
+	return configuredURL, nil
+}
+
 func removeIncompleteRepositoryCache(cachePath string) error {
 	info, err := os.Lstat(cachePath)
 	switch {

pkg/control/vcs_test.go

@@ -456,6 +456,55 @@ func TestPublicHTTPSRepositorySnapshotIgnoresAmbientGitRewrite(t *testing.T) {
 	}
 }
 
+func TestPrepareRepositoryCheckoutRepairsMissingOrigin(t *testing.T) {
+	source := initGitRepo(t)
+	serverRoot := t.TempDir()
+	bare := filepath.Join(serverRoot, "repository.git")
+	runGit(t, serverRoot, "clone", "--bare", "--", source, bare)
+	revision, err := git(t.Context(), source, "rev-parse", "HEAD")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	root := t.TempDir()
+	request := PrepareRepositoryCheckoutRequest{
+		Dir: root, RepositoryURL: "file://" + bare, CacheDirectory: "cache/repository",
+		Revision: revision, FetchIdentity: "missing-origin-repair", RemoteAccess: RepositoryRemoteAccessLocalFile,
+	}
+	if _, err := New().PrepareRepositoryCheckout(t.Context(), request); err != nil {
+		t.Fatal(err)
+	}
+	cachePath := filepath.Join(root, request.CacheDirectory)
+	runGit(t, cachePath, "remote", "remove", "origin")
+	junk := filepath.Join(cachePath, "generated.tmp")
+	if err := os.WriteFile(junk, []byte("remove me"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	repaired, err := New().PrepareRepositoryCheckout(t.Context(), request)
+	if err != nil || repaired.Revision != revision {
+		t.Fatalf("repaired checkout = %+v, want revision %s (error = %v)", repaired, revision, err)
+	}
+	configuredURL, err := git(t.Context(), cachePath, "config", "--get", "remote.origin.url")
+	if err != nil {
+		t.Fatalf("read repaired origin: %v", err)
+	}
+	if configuredURL != request.RepositoryURL {
+		t.Fatalf("repaired origin = %q, want %q", configuredURL, request.RepositoryURL)
+	}
+	if _, err := os.Stat(junk); !os.IsNotExist(err) {
+		t.Fatalf("repaired checkout retained generated file (stat error = %v)", err)
+	}
+	if _, err := New().PrepareRepositoryCheckout(t.Context(), request); err != nil {
+		t.Fatalf("retry repaired checkout: %v", err)
+	}
+
+	runGit(t, cachePath, "remote", "set-url", "origin", "file://"+filepath.Join(serverRoot, "different.git"))
+	if _, err := New().PrepareRepositoryCheckout(t.Context(), request); err == nil || !strings.Contains(err.Error(), "does not match requested source") {
+		t.Fatalf("mismatched origin error = %v, want source mismatch", err)
+	}
+}
+
 func writeCommit(t *testing.T, plane Plane, ctx context.Context, dir, name, content, message string) GitCommit {
 	t.Helper()
 	if err := os.WriteFile(filepath.Join(dir, name), []byte(content), 0o600); err != nil {