workflow stuff

.github/workflows/lint_c.yml

@@ -0,0 +1,47 @@
+name: 'Lint C/C++ with clang-format'
+
+on:
+  push:
+    branches:
+      - dev
+      - "release*"
+    tags:
+      - '*'
+  pull_request:
+
+env:
+  TARGETS: f7
+  FBT_TOOLCHAIN_PATH: /runner/_work
+  SET_GH_OUTPUT: 1
+
+jobs:
+  lint_c_cpp:
+    runs-on: [self-hosted,FlipperZeroShell]
+    steps:
+      - name: 'Decontaminate previous build leftovers'
+        run: |
+          if [ -d .git ]; then
+            git submodule status || git checkout "$(git rev-list --max-parents=0 HEAD | tail -n 1)"
+          fi
+
+      - name: 'Checkout code'
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: 'Check code formatting'
+        id: syntax_check
+        run: ./fbt lint
+
+      - name: Report code formatting errors
+        if: failure() && steps.syntax_check.outputs.errors && github.event.pull_request
+        uses: peter-evans/create-or-update-comment@v1
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body: |
+            Please fix following code formatting errors:
+            ```
+            ${{ steps.syntax_check.outputs.errors }}
+            ```
+            You might want to run `./fbt format` for an auto-fix.