✨ DCM Workflow and Setup

- Created a DCM enabled code quality PR check workflow in code-quality.yaml.
- Added necessary dependency and configuration for DCM in analysis_options.yaml and pubspec.yaml.

Author: aditya-css

.github/workflows/code-quality.yaml

@@ -0,0 +1,39 @@
+name: code-quality
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+
+      - name: Install Dart and Flutter
+        uses: subosito/[email protected]
+        with:
+          flutter-version: '3.16.5'
+          cache: true
+          cache-key: 'flutter-macos-stable-3.16.5-apple'
+          cache-path: '${{ runner.tool_cache }}/flutter/macos-stable-3.16.5-apple'
+          pub-cache-key: 'flutter-pub-macos-stable-3.16.5-apple'
+
+      - name: Install dependencies
+        run: flutter clean && flutter pub get
+
+      - name: Install DCM
+        uses: CQLabs/setup-dcm@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run DCM
+        uses: CQLabs/[email protected]
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_pat: ${{ secrets.PAT }}
+          ci_key: ${{ secrets.DCM_CI_KEY }}
+          email: ${{ secrets.DCM_EMAIL }}

analysis_options.yaml

@@ -9,6 +9,38 @@
 # packages, and plugins designed to encourage good coding practices.
 include: package:flutter_lints/flutter.yaml
 
+dart_code_metrics:
+  monorepo: true
+  extends:
+    - package:dart_code_metrics_presets/all.yaml
+    - recommended
+  metrics:
+    cyclomatic-complexity: 20
+    number-of-parameters: 4
+    maximum-nesting-level: 5
+    weight-of-class: 0.33
+    tight-class-cohesion: 0.33
+    weighted-methods-per-class: 35
+    response-for-class: 55
+    coupling-between-object-classes: 12
+    number-of-added-methods: 10
+    depth-of-inheritance-tree: 5
+    widgets-nesting-level: 10
+    source-lines-of-code: 50
+    number-of-used-widgets: 20
+    maintainability-index: 50
+    lines-of-code: 100
+    halstead-volume: 150
+    technical-debt:
+      threshold: 1
+      todo-cost: 161
+      ignore-cost: 320
+      ignore-for-file-cost: 396
+      as-dynamic-cost: 322
+      deprecated-annotations-cost: 37
+      file-nullsafety-migration-cost: 41
+      unit-type: "INR"
+
 linter:
   # The lint rules applied to this project can be customized in the
   # section below to disable rules from the `package:flutter_lints/flutter.yaml`

pubspec.yaml

@@ -46,6 +46,7 @@ dev_dependencies:
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
   flutter_lints: ^2.0.0
+  dart_code_metrics_presets: ^2.12.0
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec