Treat incomplete remote tag observations as uncertain

cmd/releasekit/main_test.go

@@ -36,6 +36,64 @@ func TestVersionCommand(t *testing.T) {
 	}
 }
 
+func TestPublishCommandReportsUnknownForPeeledOnlyRecovery(t *testing.T) {
+	repository := newCLIRepository(t)
+	writeRepositoryFile(t, repository, "docs/releases/v1.2.3.md", "# Example Product v1.2.3\n\nRelease note.\n")
+	profile, err := json.Marshal(cli.Settings{Product: "Example Product", Remote: "origin"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	writeRepositoryFile(t, repository, "releasekit.json", string(profile))
+	cliGitRun(t, repository, "add", "docs/releases/v1.2.3.md", "releasekit.json")
+	cliGitRun(t, repository, "commit", "-m", "configure release")
+	remote := filepath.Join(t.TempDir(), "origin.git")
+	cliGitRun(t, repository, "init", "--bare", remote)
+	cliGitRun(t, repository, "remote", "add", "origin", remote)
+	cliGitRun(t, repository, "push", "--set-upstream", "origin", "main")
+	realGit, err := exec.LookPath("git")
+	if err != nil {
+		t.Fatal(err)
+	}
+	bin := t.TempDir()
+	marker := filepath.Join(t.TempDir(), "pushed")
+	script := `#!/bin/sh
+is_push=0
+is_ls=0
+for arg in "$@"; do
+  [ "$arg" = push ] && is_push=1
+  [ "$arg" = ls-remote ] && is_ls=1
+done
+if [ "$is_ls" = 1 ] && [ -f "$PUSH_MARKER" ]; then
+  case " $* " in *refs/tags/v1.2.3*)
+    object=$("$REAL_GIT" rev-parse 'refs/tags/v1.2.3^{}')
+    printf '%s\trefs/tags/v1.2.3^{}\n' "$object"
+    exit 0;; esac
+fi
+if [ "$is_push" = 1 ]; then
+  "$REAL_GIT" "$@" || exit $?
+  : > "$PUSH_MARKER"
+  echo 'lost acknowledgment' >&2
+  exit 77
+fi
+exec "$REAL_GIT" "$@"
+`
+	if err := os.WriteFile(filepath.Join(bin, "git"), []byte(script), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("PATH", bin+string(os.PathListSeparator)+os.Getenv("PATH"))
+	t.Setenv("REAL_GIT", realGit)
+	t.Setenv("PUSH_MARKER", marker)
+	var stdout, stderr bytes.Buffer
+	status := run(context.Background(), []string{"publish", "--repo", repository, "v1.2.3"}, &stdout, &stderr)
+	if status != 3 || !strings.Contains(stderr.String(), "unknown") || strings.Contains(stdout.String(), "published") {
+		t.Fatalf("status = %d, stdout = %q, stderr = %q", status, stdout.String(), stderr.String())
+	}
+	local := cliGitOutput(t, repository, "rev-parse", "refs/tags/v1.2.3")
+	if got := cliGitOutput(t, remote, "rev-parse", "refs/tags/v1.2.3"); got != local {
+		t.Fatalf("remote tag = %s, want %s", got, local)
+	}
+}
+
 func TestUnknownCommand(t *testing.T) {
 	var stdout, stderr bytes.Buffer
 	if status := run(context.Background(), []string{"unknown"}, &stdout, &stderr); status != 2 {