ci: rebuild and verify welcome gutter successor

Author: twoimo

.github/workflows/welcome-gutter-successor-rebuild.yml

@@ -0,0 +1,149 @@
+name: Rebuild and verify welcome gutter successor
+
+on:
+  push:
+    branches:
+      - successor/welcome-composer-gutter-current-v2
+
+permissions:
+  contents: write
+
+jobs:
+  rebuild:
+    if: github.actor == 'twoimo'
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: successor/welcome-composer-gutter-current-v2
+          fetch-depth: 0
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Rebuild reviewed change on current upstream dev
+        shell: bash
+        run: |
+          git config user.name "twoimo"
+          git config user.email "32544727+twoimo@users.noreply.github.com"
+          git remote add upstream https://github.com/Yeachan-Heo/gajae-code.git || true
+          git fetch --no-tags upstream dev
+          git reset --hard upstream/dev
+          python3 - <<'PY'
+          from pathlib import Path
+
+          welcome_path = Path('packages/coding-agent/src/modes/components/welcome.ts')
+          welcome = welcome_path.read_text()
+          replacements = [
+              ('\tchangelogMarkdown?: string;\n\tcollapseChangelog?: boolean;',
+               '\tchangelogMarkdown?: string;\n\trightGutterWidth?: number;\n\tcollapseChangelog?: boolean;'),
+              ('\t\tconst boxWidth = Math.max(0, termWidth);',
+               '\t\tconst rightGutterWidth = this.#rightGutterWidth(termWidth);\n\t\tconst boxWidth = Math.max(0, termWidth - rightGutterWidth);'),
+              ('\t\tif (outputRows === 1) {\n\t\t\treturn lines;\n\t\t}',
+               '\t\tif (outputRows === 1) {\n\t\t\treturn this.#withRightGutter(lines, rightGutterWidth);\n\t\t}'),
+              ('\t\treturn lines;\n\t}\n\n\t/** Center text within a given width */',
+               '\t\treturn this.#withRightGutter(lines, rightGutterWidth);\n\t}\n\n\t/** Center text within a given width */'),
+              ('\t#targetRows(termWidth: number): number | undefined {',
+               '''\t#rightGutterWidth(termWidth: number): number {
+\t\tconst configured = this.options.rightGutterWidth ?? 0;
+\t\tif (!Number.isFinite(configured) || configured <= 0) return 0;
+\t\tconst gutterWidth = Math.floor(configured);
+\t\treturn Math.min(gutterWidth, Math.max(0, termWidth - 4));
+\t}
+
+\t#withRightGutter(lines: string[], rightGutterWidth: number): string[] {
+\t\tif (rightGutterWidth <= 0) return lines;
+\t\tconst gutter = padding(rightGutterWidth);
+\t\treturn lines.map(line => line + gutter);
+\t}
+
+\t#targetRows(termWidth: number): number | undefined {'''),
+          ]
+          for old, new in replacements:
+              if old not in welcome:
+                  raise SystemExit(f'welcome anchor missing: {old[:80]}')
+              welcome = welcome.replace(old, new, 1)
+          welcome_path.write_text(welcome)
+
+          mode_path = Path('packages/coding-agent/src/modes/interactive-mode.ts')
+          mode = mode_path.read_text()
+          replacements = [
+              ('const WELCOME_RESERVED_CONTAINER_CHILD_LIMIT = 8;\n',
+               'const WELCOME_RESERVED_CONTAINER_CHILD_LIMIT = 8;\nconst COMPOSER_RIGHT_GUTTER_WIDTH = 1;\n'),
+              ('\teditor.setRightGutterWidth(1);',
+               '\teditor.setRightGutterWidth(COMPOSER_RIGHT_GUTTER_WIDTH);'),
+              ('\t\t\t\t\tchangelogMarkdown: this.#changelogMarkdown,\n\t\t\t\t\tcollapseChangelog:',
+               '\t\t\t\t\tchangelogMarkdown: this.#changelogMarkdown,\n\t\t\t\t\trightGutterWidth: COMPOSER_RIGHT_GUTTER_WIDTH,\n\t\t\t\t\tcollapseChangelog:'),
+          ]
+          for old, new in replacements:
+              if old not in mode:
+                  raise SystemExit(f'interactive-mode anchor missing: {old[:80]}')
+              mode = mode.replace(old, new, 1)
+          mode_path.write_text(mode)
+
+          test_path = Path('packages/coding-agent/test/welcome-viewport.test.ts')
+          tests = test_path.read_text()
+          marker = '\tit("renders the build label from metadata instead of defaulting to dev", () => {'
+          regression = '''\tit("reserves the composer gutter for normal and one-row welcome layouts", () => {
+\t\tconst full = new WelcomeComponent("1.2.3", "test-model", "test-provider", [], [], "ascii", {
+\t\t\trightGutterWidth: 1,
+\t\t});
+\t\tconst fullLines = full.render(100).map(stripRenderControls);
+\t\texpect(fullLines.length).toBeGreaterThan(0);
+\t\tfor (const line of fullLines) {
+\t\t\texpect(visibleWidth(line)).toBe(100);
+\t\t\texpect(line.endsWith(" ")).toBe(true);
+\t\t\texpect(visibleWidth(line.trimEnd())).toBe(99);
+\t\t}
+
+\t\tconst oneRow = new WelcomeComponent("1.2.3", "test-model", "test-provider", [], [], "ascii", {
+\t\t\trightGutterWidth: 1,
+\t\t\tgetViewportRows: () => 1,
+\t\t\tgetReservedBottomRows: () => 0,
+\t\t});
+\t\tconst [line] = oneRow.render(100).map(stripRenderControls);
+\t\texpect(line).toBeDefined();
+\t\texpect(visibleWidth(line!)).toBe(100);
+\t\texpect(line!.endsWith(" ")).toBe(true);
+\t\texpect(visibleWidth(line!.trimEnd())).toBe(99);
+\t});
+
+'''
+          if tests.count(marker) != 1:
+              raise SystemExit('welcome test insertion anchor missing')
+          test_path.write_text(tests.replace(marker, regression + marker, 1))
+
+          changelog_path = Path('packages/coding-agent/CHANGELOG.md')
+          changelog = changelog_path.read_text()
+          entry = '- Aligned the startup GJC Forge splash border with the composer trailing gutter, including the one-row constrained fallback.\n'
+          if entry not in changelog:
+              marker = '### Fixed\n\n'
+              if marker not in changelog:
+                  raise SystemExit('changelog Fixed anchor missing')
+              changelog = changelog.replace(marker, marker + entry, 1)
+          changelog_path.write_text(changelog)
+          PY
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: '1.3'
+
+      - name: Install, format, and verify
+        run: |
+          bun install --frozen-lockfile
+          bunx biome check --write \
+            packages/coding-agent/src/modes/components/welcome.ts \
+            packages/coding-agent/src/modes/interactive-mode.ts \
+            packages/coding-agent/test/welcome-viewport.test.ts
+          bun test --timeout 30000 packages/coding-agent/test/welcome-viewport.test.ts
+          bun test --timeout 30000 packages/coding-agent/test/interactive-mode-editor-component.test.ts --test-name-pattern "welcome|viewport-bound|composer"
+          bun --cwd=packages/coding-agent run check
+
+      - name: Publish verified clean successor
+        shell: bash
+        run: |
+          git add \
+            packages/coding-agent/CHANGELOG.md \
+            packages/coding-agent/src/modes/components/welcome.ts \
+            packages/coding-agent/src/modes/interactive-mode.ts \
+            packages/coding-agent/test/welcome-viewport.test.ts
+          git commit -m "fix(coding-agent): align welcome and composer gutters"
+          git push --force origin HEAD:successor/welcome-composer-gutter-current-v2