add utility to compare ant & maven output.
git-svn-id: https://google-guice.googlecode.com/svn/trunk@1477 d779f126-a31b-0410-b53b-1d3aecad763e
diff --git a/compareBuilds.sh b/compareBuilds.sh
new file mode 100755
index 0000000..b5298fd
--- /dev/null
+++ b/compareBuilds.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+# Compares the ant jars to the maven jars and makes sure they're the same
+# (or different where/how expected)
+
+# Build everything first.
+function cleanAndBuild {
+ mvn clean
+ ant clean.all
+ ant no_aop
+ ant dist test.dist
+ mvn package
+ cd build/no_aop
+ ant dist test.dist
+ cd ../..
+}
+
+function findAndCompareJars {
+ version=3.0
+ for ANT in `find -name "*-snapshot.jar" -path "./build/dist/*"`
+ do
+ if [ $ANT = "./build/dist/guice-snapshot.jar" ]; then #Check main build
+ MVN=./core/target/guice-$version-SNAPSHOT.jar
+ extension=core
+ compareJars "$ANT" "$MVN" $extension
+ compareJars "./build/no_aop/$ANT" "./core/target/guice-$version-SNAPSHOT-no_aop.jar" "no_aop: $extension" #also compare no_aop core
+ else # Check extensions
+ extension=`echo $ANT | awk -F"-" '{print $2 }'`
+ MVN=./extensions/$extension/target/guice-$extension-$version-SNAPSHOT.jar
+ compareJars "$ANT" "$MVN" $extension
+ fi
+
+ done;
+}
+
+function compareJars {
+ ANT=$1
+ MVN=$2
+ extension=$3
+
+ echo Comparing $3
+ mkdir tmp$$
+ cp $ANT tmp$$/ant.jar
+ cp $MVN tmp$$/mvn.jar
+ cd tmp$$
+ mkdir ant
+ mkdir mvn
+ cd ant
+ jar -xf ../ant.jar
+ cd ..
+ cd mvn
+ jar -xf ../mvn.jar
+ cd ..
+
+ # ant puts LICENSE & NOTICE files in a different place
+ echo LICENSE > excludes
+ echo NOTICE >> excludes
+ # ant does not create DEPENDENCIES
+ echo DEPENDENCIES >> excludes
+ # ant/mvn slightly different in MANIFEST.MF
+ echo MANIFEST.MF >> excludes
+ # ant leaves empty directories for some jarjar'd paths --
+ # we grep -v instead of exclude because we want to make sure
+ # if any files in those directories exist, that they're diff'd
+ diff -u --recursive -Xexcludes ant mvn | grep -v "Only in ant/com/google/inject/internal/asm: signature" | grep -v "Only in ant/com/google/inject/internal/cglib: beans" | grep -v "Only in ant/com/google/inject/internal/cglib: transform" | grep -v "Only in ant/com/google/inject/internal/cglib: util"
+ cd ..
+ rm -rf "tmp$$"
+}
+
+cleanAndBuild
+echo "Starting to compare jars... Check the output closely!"
+echo
+findAndCompareJars
+echo
+echo "If the only thing that printed out is 'Comparing <thing>', then you're good!"
\ No newline at end of file
