Enable the buildcache - read only for PRs, and read/write for trusted…

.ci/ci.sh

@@ -1,14 +1,14 @@
 #!/bin/bash
 
 # Do the Gradle build
-./gradlew --scan build || exit 1
-./gradlew npmTest || exit 1
+./gradlew --scan build --build-cache || exit 1
+./gradlew npmTest --build-cache || exit 1
 
 if [ "$TRAVIS_REPO_SLUG" == "diffplug/spotless" ] && [ "$TRAVIS_PULL_REQUEST" == "false" ] && [ "$TRAVIS_BRANCH" == "master" ]; then
 	# Make sure that all pom are up-to-date
-	./gradlew generatePomFileForPluginMavenPublication
+	./gradlew generatePomFileForPluginMavenPublication --build-cache
 	# Publish the artifacts
-	./gradlew publish publishPlugins -Dgradle.publish.key=$gradle_key -Dgradle.publish.secret=$gradle_secret || exit 1
+	./gradlew publish publishPlugins -Dgradle.publish.key=$gradle_key -Dgradle.publish.secret=$gradle_secret --build-cache || exit 1
 	# Push the javadoc
-	./gradlew publishGhPages || exit 1
+	./gradlew publishGhPages --build-cache || exit 1
 fi

CHANGES.md

@@ -7,12 +7,17 @@ You might be looking for:
 
 ### Version 1.21.0-SNAPSHOT - TBD (javadoc [lib](https://diffplug.github.io/spotless/javadoc/spotless-lib/snapshot/) [lib-extra](https://diffplug.github.io/spotless/javadoc/spotless-lib-extra/snapshot/), [snapshot repo](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/))
 
+* We now use a remote build cache to speed up CI builds.  Reduced build time from ~13 minutes to as low as ~3 minutes, dependending on how deep the change is ([#380](https://github.com/diffplug/spotless/pull/380)).
+
 ### Version 1.20.0 - March 11th 2018 (javadoc [lib](https://diffplug.github.io/spotless/javadoc/spotless-lib/1.20.0/) [lib-extra](https://diffplug.github.io/spotless/javadoc/spotless-lib-extra/1.20.0/), artifact [lib]([jcenter](https://bintray.com/diffplug/opensource/spotless-lib), [lib-extra]([jcenter](https://bintray.com/diffplug/opensource/spotless-lib-extra)))
 
 * Made npm package versions of [`prettier`](https://prettier.io/) and [`tsfmt`](https://github.com/vvakame/typescript-formatter) (and its internal packages) configurable. ([#363](https://github.com/diffplug/spotless/pull/363))
   * Updated default npm package version of `prettier` from 1.13.4 to 1.16.4
   * Updated default npm package version of internally used typescript package from 2.9.2 to 3.3.3 and tslint package from 5.1.0 to 5.12.0 (both used by `tsfmt`)
 * Updated default eclipse-wtp from 4.7.3a to 4.7.3b ([#371](https://github.com/diffplug/spotless/pull/371)).
+* Configured `buìld-scan` plugin in build ([#356](https://github.com/diffplug/spotless/pull/356)).
+  * Runs on every CI build automatically.
+  * Users need to opt-in on their local machine.
 * Default behavior of XML formatter changed to ignore external URIs ([#369](https://github.com/diffplug/spotless/issues/369)).
   * **WARNING RESOLVED: By default, xml formatter no longer downloads external entities. You can opt-in to resolve external entities by setting resolveExternalURI to true. However, if you do opt-in, be sure that all external entities are referenced over https and not http, or you may be vulnerable to XXE attacks.**
 

plugin-gradle/CHANGES.md

@@ -8,9 +8,6 @@
   * Updated default npm package version of `prettier` from 1.13.4 to 1.16.4
   * Updated default npm package version of internally used typescript package from 2.9.2 to 3.3.3 and tslint package from 5.1.0 to 5.12.0 (both used by `tsfmt`)
 * Updated default eclipse-wtp from 4.7.3a to 4.7.3b ([#371](https://github.com/diffplug/spotless/pull/371)).
-* Configured `buìld-scan` plugin in build ([#356](https://github.com/diffplug/spotless/pull/356)).
-  * Runs on every CI build automatically.
-  * Users need to opt-in on their local machine.
 * Default behavior of XML formatter changed to ignore external URIs ([#369](https://github.com/diffplug/spotless/issues/369)).
   * **WARNING RESOLVED: By default, xml formatter no longer downloads external entities. You can opt-in to resolve external entities by setting resolveExternalURI to true. However, if you do opt-in, be sure that all external entities are referenced over https and not http, or you may be vulnerable to XXE attacks.**
 

settings.gradle

@@ -1,3 +1,33 @@
+if (System.env['CI'] != null) {
+	// use the remote buildcache on all CI builds
+	buildCache {
+		def cred = {
+			if (System.env[it] != null) {
+				return System.env[it]
+			} else {
+				return System.getProperty(it)
+			}
+		}
+		remote(HttpBuildCache) {
+			url = 'https://buildcache.diffplug.com/cache/'
+			// but we only push if it's a trusted build (not PRs)
+			String user = cred('buildcacheuser')
+			String pass = cred('buildcachepass')
+			if (user != null && pass != null) {
+				push = true
+				credentials {
+					username = user
+					password = pass
+				}
+			} else {
+				credentials {
+					username = 'anonymous'
+				}
+			}
+		}
+	}
+}
+
 include 'ide'				// easy dev setup
 include 'javadoc-publish'	// publish javadoc for the various libs