format command

.github/workflows/format.yml

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+name: Format
+on:
+  repository_dispatch:
+    types: [format-command]
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.SLANGBOT_PAT }}
+          repository: ${{ github.event.client_payload.pull_request.head.repo.full_name }}
+          ref: ${{ github.event.client_payload.pull_request.head.ref }}
+
+      - run: pip3 install gersemi
+
+      - name: install clang-format
+        run: |
+          tmpdir=$(mktemp -d)
+          curl -L -H "Authorization: token ${{ secrets.SLANGBOT_PAT }}" \
+            -o "$tmpdir/clang-format" \
+            https://github.com/shader-slang/slang-binaries/raw/4e88845ec51641b4c92e68027e359090bdb219e0/clang-format/x86_64-linux/bin/clang-format
+          chmod +x "$tmpdir/clang-format"
+          echo "$tmpdir" >> $GITHUB_PATH
+
+      - run: ./extras/formatting.sh
+
+      - name: Configure Git commit signing
+        run: |
+          echo "${{ secrets.SLANGBOT_SIGNING_KEY }}" > "${{runner.temp}}"/signing_key
+          chmod 600 "${{runner.temp}}"/signing_key
+          git config commit.gpgsign true
+          git config gpg.format ssh
+          git config user.signingkey "${{runner.temp}}"/signing_key
+
+      - uses: EndBug/add-and-commit@v9
+        with:
+          fetch: false
+          message: "format code"
+          push: true
+
+      - name: Add reaction
+        uses: peter-evans/create-or-update-comment@v4
+        with:
+          token: ${{ secrets.SLANGBOT_PAT }}
+          repository: ${{ github.event.client_payload.github.payload.repository.full_name }}
+          comment-id: ${{ github.event.client_payload.github.payload.comment.id }}
+          reactions-edit-mode: replace
+          reactions: hooray

.github/workflows/slash-command-dispatch.yml

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+name: Slash Command Dispatch
+on:
+  issue_comment:
+    types: [created]
+jobs:
+  slashCommandDispatch:
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Slash Command Dispatch
+        id: scd
+        uses: peter-evans/slash-command-dispatch@v4
+        with:
+          token: ${{ secrets.SLANGBOT_PAT }}
+          reaction-token: ${{ secrets.SLANGBOT_PAT }}
+          config: >
+            [
+              {
+                "command": "format",
+                "permission": "none",
+                "issue_type": "pull-request"
+              }
+            ]
+
+      - name: Edit comment with error message
+        if: steps.scd.outputs.error-message
+        uses: peter-evans/create-or-update-comment@v4
+        with:
+          token: ${{ secrets.SLANGBOT_PAT }}
+          comment-id: ${{ github.event.comment.id }}
+          body: |
+            > ${{ steps.scd.outputs.error-message }}