3 files changed, 93 insertions, 1 deletions
diff --git a/.github/workflows/infer.yml b/.github/workflows/infer.yml
new file mode 100644
index 00000000..f7524223
--- /dev/null
+++ b/.github/workflows/infer.yml
@@ -0,0 +1,34 @@
+name: Infer
+
+on:
+  - pull_request
+  - workflow_dispatch
+jobs:
+  inferering:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        name: Checkout feature
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - name: Set up JDK 17
+        uses: actions/setup-java@v2
+        with:
+          java-version: 17
+          distribution: temurin
+          cache: gradle
+      - name: Setup Infer
+        uses: srz-zumix/setup-infer@v1
+      - name: Run Infer on feature
+        run: ./.github/workflows/inferbuild.sh feature
+      - uses: actions/checkout@v2
+        name: Checkout base
+        with:
+          ref: ${{ github.event.pull_request.base.sha }}
+          clean: false
+      - name: Run Infer on base
+        run: ./.github/workflows/inferbuild.sh base
+      - name: Generate report
+        run: ./.github/workflows/inferbuild.sh report
+
diff --git a/.github/workflows/inferbuild.sh b/.github/workflows/inferbuild.sh
new file mode 100755
index 00000000..b692a1ee
--- /dev/null
+++ b/.github/workflows/inferbuild.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+# Copyright (C) 2022 NotEnoughUpdates contributors
+#
+# This file is part of NotEnoughUpdates.
+#
+# NotEnoughUpdates is free software: you can redistribute it
+# and/or modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation, either
+# version 3 of the License, or (at your option) any later version.
+#
+# NotEnoughUpdates is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
+#
+
+gradlecommand="./gradlew clean test --no-daemon"
+
+currentcommit=$(git log --pretty=%s -1)
+mkdir -p ciwork
+
+case $1 in
+feature)
+  echo "::group::Gradle build on $currentcommit"
+  infer capture -- $gradlecommand
+  echo "::endgroup::"
+
+  echo "::group::Infer analyzering on $currentcommit"
+  infer analyze
+  echo "::endgroup::"
+
+  cp infer-out/report.json ciwork/report-feature.json
+  ;;
+base)
+  echo "::group::Gradle build on $currentcommit"
+  infer capture --reactive -- $gradlecommand
+  echo "::endgroup::"
+
+  echo "::group::Infer analyzation on $currentcommit"
+  infer analyze --reactive
+  echo "::endgroup::"
+  ;;
+report)
+  infer reportdiff --report-current ciwork/report-feature.json --report-previous infer-out/report.json
+  jq -r '.[] | select(.severity == "ERROR") | ("::error file="+.file +",line=" +(.line|tostring)+"::" + .qualifier)' <infer-out/differential/introduced.json
+  jq -r '.[] | select(.severity == "WARNING") | ("::warning file="+.file +",line=" +(.line|tostring)+"::" + .qualifier)' <infer-out/differential/introduced.json
+  fixcount=$(jq -r "length" <infer-out/differential/fixed.json)
+  unfixcount=$(jq -r "length" <infer-out/differential/introduced.json)
+  othercount=$(jq -r "length" <infer-out/differential/preexisting.json)
+  echo "This PR fixes $fixcount potential bug(s), introduces $unfixcount potential bug(s). (Total present in feature branch: $((unfixcount + othercount)))" >>$GITHUB_STEP_SUMMARY
+  if [[ $unfixcount != 1 ]]; then
+    exit 1
+  fi
+  ;;
+esac
diff --git a/.github/workflows/send_webhook_update.sh b/.github/workflows/send_webhook_update.sh
index 3ec20af3..f0eb0051 100755
--- a/.github/workflows/send_webhook_update.sh
+++ b/.github/workflows/send_webhook_update.sh
@@ -88,7 +88,7 @@ function make_request() {
   curl -X $1 -H "Content-Type: multipart/form-data" -F "payload_json=$json" "$upload_arg" "$upload_name=@$to_upload" "$WEBHOOK_URL$2?wait=true"
 }
 
-echo "Should replace message with id: $MESSAGE_ID"
+echo "Should replace message with id: <$MESSAGE_ID>"
 if [ "$MESSAGE_ID" != "" ]; then
   discord_output=$(make_request PATCH "/messages/$MESSAGE_ID")
   RESULT=$?