Add output_type and output_path parameters

This allows us to use the action to create HTML reports, for instance.

Author: lpenz

README.md

@@ -28,7 +28,6 @@ name: CI
 on: [ push, pull_request ]
 jobs:
   test-coverage:
-    name: cargo test with coveralls
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -43,6 +42,12 @@ jobs:
 ### Inputs
 
 - `dependencies_debian`: Debian packages to install before running the tests.
+- `output_type`: output type to pass to grcov.
+- `output_path`: output path to pass to grcov.
+
+
+If neither `output_type` and `output_path` are defined, the action by
+default creates an lcov.info file in the current directory.
 
 ## Alternatives
 

action.yml

@@ -6,8 +6,17 @@ branding:
   color: black
 inputs:
   dependencies_debian:
-    description: 'Dependencies as Debian packages to install; used if defined'
+    description: Dependencies as Debian packages to install; used if defined
     default: ''
+  output_type:
+    description: Output type to pass to grcov
+    default: ''
+  output_path:
+    description: Output path to pass to grcov and set as report variable
+    default: ''
+outputs:
+  report:
+    description: Name of report file, for compatibility with rust-grcov
 runs:
   using: 'docker'
   image: 'Dockerfile'

entrypoint

@@ -13,7 +13,25 @@ else
     }
 fi
 
-OUTPUT_PATH=lcov.info
+GRCOV=( grcov . \
+              -s . \
+              --binary-path ./target/debug/ \
+              --ignore "/*" --ignore "../*" \
+              --branch --ignore-not-existing \
+      )
+
+if [ -n "$INPUT_OUTPUT_TYPE" ]; then
+    GRCOV+=( -t "$INPUT_OUTPUT_TYPE" )
+fi
+
+if [ -n "$INPUT_OUTPUT_PATH" ]; then
+    GRCOV+=( -o "$INPUT_OUTPUT_PATH" )
+    OUTPUT_PATH="$INPUT_OUTPUT_PATH"
+elif [ -z "$INPUT_OUTPUT_TYPE" ]; then
+    # Default if no output_type was specified either
+    GRCOV+=( -o lcov.info )
+    OUTPUT_PATH="lcov.info"
+fi
 
 set -e -x
 
@@ -27,11 +45,8 @@ export RUST_BACKTRACE=1
 
 cargo test --all-features --no-fail-fast
 
-grcov . \
-      -s . \
-      --binary-path ./target/debug/ \
-      --ignore "/*" --ignore "../*" \
-      --branch --ignore-not-existing \
-      -o "$OUTPUT_PATH"
-echo "::set-output name=report::$OUTPUT_PATH"
+"${GRCOV[@]}"
+if [ -n "$OUTPUT_PATH" ]; then
+    echo "::set-output name=report::$OUTPUT_PATH"
+fi