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15 changes: 8 additions & 7 deletions .github/workflows/spec-update.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -233,15 +233,16 @@ jobs:
if: steps.spec_diff.outputs.spec_diff == 'true'
env:
MODULE_PATH: ${{ steps.download.outputs.module_path }}
BASE: ${{ steps.pr_base.outputs.BASE }}
run: |
# Extract main branch source into a temporary directory
git fetch --no-tags --depth=1 origin main
mkdir -p /tmp/main-baseline
git archive origin/main | tar -x -C /tmp/main-baseline
# Extract $BASE branch source into a temporary directory
git fetch --no-tags --depth=1 origin "$BASE"
mkdir -p /tmp/api-baseline
git archive "origin/$BASE" | tar -x -C /tmp/api-baseline

# Build inside a subshell to avoid polluting the working directory
(
cd /tmp/main-baseline
cd /tmp/api-baseline
mvn package -DskipTests -pl "$MODULE_PATH" -am ${{ env.MVN_MULTI_THREADED_ARGS }}
FINAL_NAME=$(mvn -q -pl "$MODULE_PATH" help:evaluate -Dexpression=project.build.finalName -DforceStdout)
cp "$MODULE_PATH/target/${FINAL_NAME}.jar" /tmp/baseline.jar
Expand Down Expand Up @@ -270,9 +271,9 @@ jobs:
FINAL_NAME=$(mvn -q -pl "$MODULE_PATH" help:evaluate -Dexpression=project.build.finalName -DforceStdout)
CURRENT_JAR="$MODULE_PATH/target/${FINAL_NAME}.jar"

# Run japicmp: compare baseline (main) JAR vs newly generated JAR
# Run japicmp: compare baseline ($BASE) JAR vs newly generated JAR
if mvn com.github.siom79.japicmp:japicmp-maven-plugin:cmp@api-compatibility \
-pl "$MODULE_PATH" \
-pl "$MODULE_PATH" \
-Djapicmp.oldVersion.file=/tmp/baseline.jar \
-Djapicmp.newVersion.file="$CURRENT_JAR" \
${{ env.MVN_MULTI_THREADED_ARGS }} ; then
Expand Down