add exclude input

Author: felangel

README.md

@@ -14,11 +14,16 @@ A Github Action which helps enforce a minimum code coverage threshold.
 
 **Default** 100
 
+### `exclude`
+
+**Optional** paths to exclude from coverage
+
 ## Example usage
 
 ```yaml
 uses: ChicagoFlutter/lcov-cop@master
 with:
   path: "./coverage/lcov.info"
   min_coverage: 95
+  exclude: "**/*.g.dart **/l10n/*.dart"
 ```

action.yml

@@ -12,9 +12,13 @@ inputs:
     description: 'minimum coverage percentage allowed'
     required: true
     default: 100
+  exclude:
+    description: 'paths to exclude from coverage'
+    required: false
 runs:
   using: 'docker'
   image: 'Dockerfile'
   args:
     - ${{ inputs.path }}
-    - ${{ inputs.min_coverage }}
+    - ${{ inputs.min_coverage }}
+    - ${{ inputs.exclude }}

entrypoint.sh

@@ -4,11 +4,16 @@ set -e
 
 LCOV_PATH=$1
 MINIMUM_COVERAGE=$2
+FILTERED_COVERAGE_PATH='./lcov_filtered.info'
 
-CODE_COVERAGE=$(lcov --list ${LCOV_PATH} | sed -n "s/.*Total:|\(.*\)%.*/\1/p")
+if [ ! -z "$3" ]; then
+    echo "Excluding $3 from coverage..."
+    lcov --remove ${LCOV_PATH} $3 -o ${FILTERED_COVERAGE_PATH}
+    CODE_COVERAGE=$(lcov --list ${FILTERED_COVERAGE_PATH} | sed -n "s/.*Total:|\(.*\)%.*/\1/p")
+else
+    CODE_COVERAGE=$(lcov --list ${LCOV_PATH} | sed -n "s/.*Total:|\(.*\)%.*/\1/p")
+fi
 
-echo "Minumum Coverage: ${MINIMUM_COVERAGE}%"
-echo "Code Coverage: ${CODE_COVERAGE}%"
-if (( $(echo "$CODE_COVERAGE < $2" | bc) )); then
-    exit 1;
-fi
+echo "Minumum Coverage Required: ${MINIMUM_COVERAGE}%"
+echo "Current Code Coverage: ${CODE_COVERAGE}%"
+if (( $(echo "$CODE_COVERAGE < $2" | bc) )); then exit 1; fi