fix: support carryforward

action.yml

@@ -36,6 +36,10 @@ inputs:
   git-commit:
     description: 'Override the commit sha'
     required: false
+  debug:
+    description: 'Enable debug output'
+    required: false
+    default: false
 outputs:
   coveralls-api-result:
     description: 'Result status of Coveralls API post.'
@@ -50,9 +54,11 @@ runs:
     - run: coveralls.sh call
       shell: bash
       env:
+        COVERALLS__DEBUG: ${{ input.debug }}
         COVERALLS__DONE: ${{ input.parallel-finished }}
         COVERALLS__BASE_PATH: ${{ input.base-path }}
         COVERALLS__FILE: ${{ input.path-to-lcov }}
+        COVERALLS_CARRYFORWARD_FLAGS: ${{ input.carryforward }}
         COVERALLS_FLAG_NAME: ${{ input.flag-name }}
         COVERALLS_PARALLEL: ${{ input.parallel }}
         COVERALLS_ENDPOINT: ${{ input.coveralls-endpoint }}

coveralls.sh

@@ -1,21 +1,30 @@
 #!/usr/bin/env bash
 
 download() {
-  set -x
-  # TODO: Determine the download way by RUNNER_OS
-  curl -L https://coveralls.io/coveralls-linux.tar.gz | tar xz
-  set +x
+  [[ "$COVERALLS_DEBUG" == "true" ]] && set -x
+  if [[ "$RUNNER_OS" == "macOS" ]]
+  then
+    brew tap coverallsapp/coveralls
+    brew install coveralls
+  elif [[ "$RUNNER_OS" == "Windos" ]]
+  then
+    # TODO: Add a step for windows
+  else
+    curl -L https://coveralls.io/coveralls-linux.tar.gz | tar xz -C /usr/local/bin
+  fi
+  [[ "$COVERALLS_DEBUG" == "true" ]] && set +x
 }
 
 call() {
   if [[ -n $COVERALLS__DONE ]]; then
-    ./coveralls --done
+    coveralls --done
   else
     local args=""
     [[ -n $COVERALLS__FILE ]] && args="$args --file $COVERALLS__FILE"
     [[ -n $COVERALLS__BASE_PATH ]] && args="$args --base-path $COVERALLS__BASE_PATH"
+    [[ "$COVERALLS_DEBUG" == "true" ]] && args="$args --debug"
 
-    ./coveralls $args
+    coveralls $args
   fi
 }