Update and rename languagetool.yml to checkspelling.yml

Author: CookieSource

.github/workflows/checkspelling.yml

@@ -0,0 +1,154 @@
+name: Harper (grammar + spelling)
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  harper:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+
+      - name: Install harper-cli
+        run: |
+          cargo install --locked --git https://github.com/Automattic/harper.git harper-cli
+
+      - name: Write Harper dictionary
+        env:
+          XDG_CONFIG_HOME: ${{ github.workspace }}/.xdg
+        run: |
+          mkdir -p "$XDG_CONFIG_HOME/harper-ls"
+          cat > "$XDG_CONFIG_HOME/harper-ls/dictionary.txt" <<'EOF'
+          AerynOS
+          astrojs
+          sha256sum
+          SHA256
+          certutil
+          hashfile
+          lastUpdated
+          EOF
+
+      - name: Run Harper on PR-changed files
+        id: harper
+        env:
+          XDG_CONFIG_HOME: ${{ github.workspace }}/.xdg
+        run: |
+          set -euo pipefail
+
+          BASE="${{ github.event.pull_request.base.sha }}"
+          HEAD="${{ github.event.pull_request.head.sha }}"
+
+          mapfile -t FILES < <(git diff --name-only "$BASE" "$HEAD" -- \
+            '*.md' '*.mdx' '*.txt' || true)
+
+          : > harper-report.txt
+
+          if [ "${#FILES[@]}" -eq 0 ]; then
+            echo "No matching files changed (.md/.mdx/.txt)." > harper-report.txt
+            echo "fail=0" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          fail=0
+          for f in "${FILES[@]}"; do
+            if [ ! -f "$f" ]; then
+              continue
+            fi
+
+            echo "===== $f =====" >> harper-report.txt
+            echo >> harper-report.txt
+
+            out="$(harper-cli lint "$f" || true)"
+            echo "$out" >> harper-report.txt
+            echo >> harper-report.txt
+
+            after="$(printf '%s\n' "$out" | sed -n 's/.*after overlap removal, \([0-9]\+\) after.*/\1/p' | tail -n 1)"
+            after="${after:-0}"
+
+            if [ "$after" -ne 0 ]; then
+              fail=1
+            fi
+          done
+
+          echo "fail=$fail" >> "$GITHUB_OUTPUT"
+
+      - name: Comment on PR with Harper output
+        if: github.event.pull_request
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('fs');
+
+            const raw = fs.readFileSync('harper-report.txt', 'utf8');
+
+            const limit = 65000;
+            const clipped =
+              raw.length > limit
+                ? raw.slice(0, limit) + "\n\n[truncated]\n"
+                : raw;
+
+            const marker = '<!-- harper-report -->';
+            const body =
+              `${marker}\n` +
+              `<details>\n` +
+              `<summary>Harper output</summary>\n\n` +
+              "```text\n" +
+              clipped +
+              "\n```\n" +
+              `</details>\n`;
+
+            const { owner, repo } = context.repo;
+            const issue_number = context.issue.number;
+
+            const comments = await github.rest.issues.listComments({
+              owner,
+              repo,
+              issue_number,
+            });
+
+            const existing = comments.data.find(c =>
+              c.body && c.body.includes(marker)
+            );
+
+            if (existing) {
+              await github.rest.issues.updateComment({
+                owner,
+                repo,
+                comment_id: existing.id,
+                body,
+              });
+            } else {
+              await github.rest.issues.createComment({
+                owner,
+                repo,
+                issue_number,
+                body,
+              });
+            }
+
+      - name: Fail if Harper found issues
+        if: steps.harper.outputs.fail == '1'
+        run: exit 1