[GitHub] [beam] aaltay commented on a change in pull request #11674: [BEAM-9958] Linkage Checker to use exclusion files as baseline

[GitBox <gi...@apache.org>]

aaltay commented on a change in pull request #11674:
URL: https://github.com/apache/beam/pull/11674#discussion_r426803651



##########
File path: sdks/java/build-tools/beam-linkage-check.sh
##########
@@ -66,51 +66,61 @@ if [ ! -z "$(git diff)" ]; then
   exit 1
 fi
 
+ACCUMULATED_RESULT=0
+
 function runLinkageCheck () {
   COMMIT=$1
   BRANCH=$2
+  MODE=$3 # baseline or validate
   # An empty invocation so that the subsequent checkJavaLinkage does not
   # contain garbage
   echo "`date`:" "Installing artifacts of ${BRANCH}(${COMMIT}) to Maven local repository."
-  ./gradlew -Ppublishing -PjavaLinkageArtifactIds=beam-sdks-java-core :checkJavaLinkage > /dev/null 2>&1
+  ./gradlew -Ppublishing -PjavaLinkageArtifactIds=beam-sdks-java-core -PjavaLinkageWriteBaseline=/dev/null :checkJavaLinkage > /dev/null 2>&1
   for ARTIFACT in $ARTIFACTS; do
-    echo "`date`:" "Running linkage check for ${ARTIFACT} in ${BRANCH}"
-    # Removing time taken to have clean diff
-    ./gradlew -Ppublishing -PjavaLinkageArtifactIds=$ARTIFACT :checkJavaLinkage |grep -v 'BUILD SUCCESSFUL in' | grep -v 'dependency paths' > ${OUTPUT_DIR}/${COMMIT}-${ARTIFACT}
-    echo "`date`:" "Done: ${OUTPUT_DIR}/${COMMIT}-${ARTIFACT}"
+    echo "`date`:" "Running linkage check (${MODE}) for ${ARTIFACT} in ${BRANCH}"
+
+    BASELINE_FILE=${OUTPUT_DIR}/baseline-${ARTIFACT}.xml
+    if [ "$MODE" = "baseline" ]; then
+      BASELINE_OPTION='-PjavaLinkageWriteBaseline'
+      echo "`date`:" "to create a baseline (existing errors before change) $BASELINE_FILE"
+    elif [ "$MODE" = "validate" ]; then
+      BASELINE_OPTION='-PjavaLinkageReadBaseline'
+      echo "`date`:" "using baseline $BASELINE_FILE"
+    else
+      echo "invalid parameter for runLinkageCheck: ${MODE}"

Review comment:
       why is this invalid, it looks like the linkage checker supports running without specifying javaLinkageReadBaseline or javaLinkageWriteBaseline




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