From b51eb49e58d1d7233a1bd42622e8af7c1c65527b Mon Sep 17 00:00:00 2001
From: Dominik Stadler <centic@apache.org>
Date: Fri, 14 Oct 2016 20:46:30 +0000
Subject: [PATCH] Bug 60134: Add initial tasks for running japicmp to the
 Gradle build

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1764960 13f79535-47bb-0310-9956-ffa450edef68
---
 build.gradle | 72 +++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 63 insertions(+), 9 deletions(-)

diff --git a/build.gradle b/build.gradle
index 7bf080246..0e2af089d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,6 +14,15 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 ==================================================================== */
+buildscript {
+	repositories {
+		jcenter()
+	}
+
+	dependencies {
+		classpath 'me.champeau.gradle:japicmp-gradle-plugin:0.1.1'
+	}
+}
 
 // For help converting an Ant build to a Gradle build, see
 // https://docs.gradle.org/current/userguide/ant.html
@@ -51,8 +60,14 @@ subprojects {
     //Put instructions for each sub project, but not the master
     apply plugin: 'java'
     apply plugin: 'jacoco'
-    
+
+    // See https://github.com/melix/japicmp-gradle-plugin 
+	apply plugin: 'me.champeau.gradle.japicmp'
+        
 	version = '3.16-beta1'
+	ext {
+		japicmpversion = '3.15'
+	}
 
 	tasks.withType(JavaCompile) {
 	    options.encoding = 'UTF-8'
@@ -102,6 +117,9 @@ subprojects {
     jacoco {
         toolVersion = '0.7.7.201606060606'
     }
+    
+    // ensure the build-dir exists
+    projectDir.mkdirs()
 }
 
 project('main') {
@@ -130,6 +148,17 @@ project('main') {
 	artifacts {
 		tests testJar
 	}
+
+	// TOOD: we should not duplicate this task in each project, but I did not figure out how to inject the artifactId for each project
+    task japicmp(type: me.champeau.gradle.ArtifactJapicmpTask, dependsOn: jar) {
+		baseline = 'org.apache.poi:poi:' + japicmpversion + '@jar'
+		to = jar.archivePath
+		onlyModified = true
+		// not available, see issue #6: onlyBinaryIncompatibleModified = true
+		failOnModification = false
+		txtOutputFile = file("$buildDir/reports/japi.txt")
+		// not available, see issue #6: htmlOutputFile = file("$buildDir/reports/japi.html")
+	}
 }
 
 project('ooxml') {
@@ -162,6 +191,17 @@ project('ooxml') {
 		testCompile 'junit:junit:4.12'
 		testCompile project(path: ':main', configuration: 'tests')
 	}
+
+	// TOOD: we should not duplicate this task in each project, but I did not figure out how to inject the artifactId for each project
+    task japicmp(type: me.champeau.gradle.ArtifactJapicmpTask, dependsOn: jar) {
+		baseline = 'org.apache.poi:poi-ooxml:' + japicmpversion + '@jar'
+		to = jar.archivePath
+		onlyModified = true
+		// not available, see issue #6: onlyBinaryIncompatibleModified = true
+		failOnModification = false
+		txtOutputFile = file("$buildDir/reports/japi.txt")
+		// not available, see issue #6: htmlOutputFile = file("$buildDir/reports/japi.html")
+	}
 }
 
 project('examples') {
@@ -187,6 +227,17 @@ project('excelant') {
 
 		testCompile project(path: ':main', configuration: 'tests')
 	}
+
+	// TOOD: we should not duplicate this task in each project, but I did not figure out how to inject the artifactId for each project
+    task japicmp(type: me.champeau.gradle.ArtifactJapicmpTask, dependsOn: jar) {
+		baseline = 'org.apache.poi:poi-excelant:' + japicmpversion + '@jar'
+		to = jar.archivePath
+		onlyModified = true
+		// not available, see issue #6: onlyBinaryIncompatibleModified = true
+		failOnModification = false
+		txtOutputFile = file("$buildDir/reports/japi.txt")
+		// not available, see issue #6: htmlOutputFile = file("$buildDir/reports/japi.html")
+	}
 }
 
 project('integrationtest') {
@@ -229,12 +280,15 @@ project('scratchpad') {
 		testCompile 'junit:junit:4.12'
 		testCompile project(path: ':main', configuration: 'tests')
 	}
-}
 
-/*
- * Notes:
- * 
- * See https://github.com/melix/japicmp-gradle-plugin and 
- * https://github.com/codehaus/groovy-git/blob/7f940159920d4ea5bc727cfcbef8aba9b48c5e50/gradle/binarycompatibility.gradle for an example of using japicmp
- * 
- **/
+	// TOOD: we should not duplicate this task in each project, but I did not figure out how to inject the artifactId for each project
+    task japicmp(type: me.champeau.gradle.ArtifactJapicmpTask, dependsOn: jar) {
+		baseline = 'org.apache.poi:poi-scratchpad:' + japicmpversion + '@jar'
+		to = jar.archivePath
+		onlyModified = true
+		// not available, see issue #6: onlyBinaryIncompatibleModified = true
+		failOnModification = false
+		txtOutputFile = file("$buildDir/reports/japi.txt")
+		// not available, see issue #6: htmlOutputFile = file("$buildDir/reports/japi.html")
+	}
+}