ci: make Cut Release version input optional, defaulting to the next patch

.github/workflows/cut-release.yml

@@ -1,7 +1,8 @@
 name: Cut Release
 
 # CI replacement for running ./release.sh on a laptop. Kick it off from the
-# Actions tab ("Cut Release" → Run workflow) with the version to release.
+# Actions tab ("Cut Release" → Run workflow). Leave the version empty to cut
+# the next patch release; give an explicit version to pin it.
 #
 # This runs release.sh itself — one source of truth: bump package.json →
 # typecheck (against the live prod OpenAPI spec) + lint + test + build →
@@ -14,12 +15,16 @@ name: Cut Release
 # pushed with GITHUB_TOKEN do not trigger other workflows, so release.yml
 # would never fire.
 
+run-name: >-
+  Cut Release — ${{ inputs.version || 'next patch' }}${{ inputs.dry_run && ' (dry run)' || '' }}
+
 on:
   workflow_dispatch:
     inputs:
       version:
-        description: 'Version to release (no v prefix, e.g. 0.3.0)'
-        required: true
+        description: 'Version to release (leave empty for the next patch; no v prefix, e.g. 0.3.0)'
+        required: false
+        default: ''
         type: string
       dry_run:
         description: 'Dry run: bump + run all checks, but do not commit/tag/push'
@@ -86,7 +91,8 @@ jobs:
 
       # release.sh runs the full gate before touching git: typecheck (codegen
       # against the live prod spec — hard gate, the polylane.com installer
-      # serves the latest release), lint, test, build.
+      # serves the latest release), lint, test, build. An empty VERSION makes
+      # release.sh bump the next patch version; the log shows the result.
       - name: Run release.sh
         env:
           VERSION: ${{ inputs.version }}

release.sh

@@ -2,14 +2,16 @@
 # Cut a new release of the polylane CLI.
 #
 #   ./release.sh 0.1.0
-#   ./release.sh               # prompts for version (interactive only)
+#   ./release.sh               # prompts for version (interactive only);
+#                              # empty answer = next patch version
 #
 # Steps: bump package.json → typecheck + lint + test + build → commit → tag →
 # push. `release.yml` takes over once the v* tag reaches origin.
 #
-# CI mode (CI env var set, as in GitHub Actions): no prompts — the version
-# argument is required and the branch must be main. Run via the "Cut Release"
-# workflow (.github/workflows/cut-release.yml) instead of a laptop.
+# CI mode (CI env var set, as in GitHub Actions): no prompts — no version
+# argument means "bump the next patch version" and the branch must be main.
+# Run via the "Cut Release" workflow (.github/workflows/cut-release.yml)
+# instead of a laptop.
 #
 # RELEASE_DRY_RUN=1 runs the version bump and all checks, then reverts the
 # bump and exits before committing, tagging, or pushing.
@@ -29,16 +31,24 @@ if [ -n "$(git status --porcelain)" ]; then
   die "working tree is dirty — commit or stash first"
 fi
 
-# Version: arg or prompt (never prompt in CI).
+# Version: arg or prompt (never prompt in CI). Empty means "next patch".
 VERSION="${1:-}"
-if [ -z "$VERSION" ]; then
-  if [ -n "${CI:-}" ]; then
-    die "version argument required in CI: ./release.sh <version>"
-  fi
-  read -rp "Release version (no v prefix, e.g. 0.1.0): " VERSION
+if [ -z "$VERSION" ] && [ -z "${CI:-}" ]; then
+  read -rp "Release version (no v prefix, e.g. 0.1.0; empty = next patch): " VERSION
 fi
 VERSION="${VERSION#v}"
 
+# No version given: compute the next patch from package.json, matching what
+# `npm version patch` would produce (a prerelease is promoted to its release).
+if [ -z "$VERSION" ]; then
+  CURRENT="$(node -p 'require("./package.json").version')"
+  VERSION="$(node -p '
+    const m = process.argv[1].match(/^(\d+)\.(\d+)\.(\d+)(-[0-9A-Za-z.-]*)?/);
+    m[4] ? `${m[1]}.${m[2]}.${m[3]}` : `${m[1]}.${m[2]}.${Number(m[3]) + 1}`
+  ' "$CURRENT")" || die "could not compute next patch version from '$CURRENT'"
+  info "no version given — next patch: $CURRENT → $VERSION"
+fi
+
 # Reject anything that isn't semver x.y.z[-prerelease][+build].
 if ! [[ "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
   die "invalid semver: '$VERSION' (expected x.y.z)"