From 6be7a1a8a2bcb6ede884dd05c4cf6309c547e08b Mon Sep 17 00:00:00 2001
From: Ben Liblit <liblit@cs.wisc.edu>
Date: Mon, 21 May 2018 16:59:40 -0500
Subject: [PATCH] Have Travis CI periodically try to build each subproject
 separately

If Gradle dependencies are set up correctly, then it should be
possible to build any subproject starting with a pristine tree.
These take too long to use for every commit, pull request, etc.  But
running an extensive test like this periodically (e.g., weekly) seems
reasonable.
---
 .travis.yml           | 252 ++++++++++++++++++++++++++++++++++++++++++
 travis/install-gradle |   4 +-
 travis/script-gradle  |   5 +-
 3 files changed, 259 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 4a3fa5173..cee184deb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,3 +38,255 @@ matrix:
     - os: osx
       env: BUILD_SYSTEM=gradle
       language: java
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.ecj
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.test.data
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.html.nu_validator
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.nodejs
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.nodejs.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.rhino
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.rhino.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.test.data
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core.testdata
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core.tests
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.dalvik
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.dalvik.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jdt
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jdt.test
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jsdt
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jsdt.tests
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.tests
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.scandroid
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.shrike
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: linux
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.util
+      language: java
+      jdk: oraclejdk8
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.ecj
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.java.test.data
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.html.nu_validator
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.nodejs
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.nodejs.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.rhino
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.rhino.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.js.test.data
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.cast.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core.testdata
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.core.tests
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.dalvik
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.dalvik.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jdt
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jdt.test
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jsdt
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.jsdt.tests
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.ide.tests
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.scandroid
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.shrike
+      language: java
+      if: type = cron
+    - os: osx
+      env: BUILD_SYSTEM=gradle BUILD_ONLY_SUBMODULE=com.ibm.wala.util
+      language: java
+      if: type = cron
diff --git a/travis/install-gradle b/travis/install-gradle
index 9bb7d2ab2..79d435352 100644
--- a/travis/install-gradle
+++ b/travis/install-gradle
@@ -3,4 +3,6 @@
 # initial p2AsMaven downloads are sometimes slow
 travis_wait 30 ./gradlew --dry-run
 
-./gradlew --continue --no-build-cache assemble
+submodule=${BUILD_ONLY_SUBMODULE:+:$BUILD_ONLY_SUBMODULE:}
+
+./gradlew --continue --no-build-cache "$submodule"assemble
diff --git a/travis/script-gradle b/travis/script-gradle
index 6aa02f8eb..cdba70407 100644
--- a/travis/script-gradle
+++ b/travis/script-gradle
@@ -5,4 +5,7 @@ case "$TRAVIS_OS_NAME" in
   (osx) headless='' ;;
 esac
 
-$headless ./gradlew --continue --no-build-cache --stacktrace build javadoc lintGradle
+$headless ./gradlew --continue --no-build-cache --stacktrace \
+	  "$submodule"build \
+	  "$submodule"javadoc \
+	  lintGradle