Fix reproducible build script to properly build source & javadoc jars for grails-gradle projects

Author: jdaugherty

etc/bin/test-reproducible-builds.sh

@@ -21,6 +21,7 @@ set -e
 
 export SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct)
 
+CWD=$(pwd)
 SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 cd "${SCRIPT_DIR}/../.."
 
@@ -29,19 +30,24 @@ mkdir -p "${SCRIPT_DIR}/results"
 
 git clean -xdf --exclude='etc/bin'
 killall -e java || true
+cd grails-gradle
+./gradlew build --rerun-tasks -PskipTests --no-build-cache
+cd ..
 ./gradlew build --rerun-tasks -PskipTests --no-build-cache
 "${SCRIPT_DIR}/generate-build-artifact-hashes.groovy" > "${SCRIPT_DIR}/results/first.txt"
 mkdir -p "${SCRIPT_DIR}/results/first"
 find . -path ./etc -prune -o -type f -path '*/build/libs/*.jar' -print0 | xargs -0 cp --parents -t "${SCRIPT_DIR}/results/first/"
 
 git clean -xdf --exclude='etc/bin'
 killall -e java || true
+cd grails-gradle
+./gradlew build --rerun-tasks -PskipTests --no-build-cache
+cd ..
 ./gradlew build --rerun-tasks -PskipTests --no-build-cache
 "${SCRIPT_DIR}/generate-build-artifact-hashes.groovy" > "${SCRIPT_DIR}/results/second.txt"
 mkdir -p "${SCRIPT_DIR}/results/second"
 find . -path ./etc -prune -o -type f -path '*/build/libs/*.jar' -print0 | xargs -0 cp --parents -t "${SCRIPT_DIR}/results/second/"
 
-cd -
 cd "${SCRIPT_DIR}/results"
 
 # diff -u first.txt second.txt
@@ -61,4 +67,4 @@ find second -type f -name '*.jar' -print | sed 's|^second/||' | grep -F -x -v -f
   done
 rm toPurge.txt
 find . -type d -empty -delete
-cd -
+cd "$CWD"