Implement versioning in the gradle build

baksmali/build.gradle

@@ -3,4 +3,7 @@ dependencies {
     compile project(':dexlib')
     compile 'commons-cli:commons-cli:1.2'
     compile 'com.google.code.findbugs:jsr305:1.3.9'
-}
+}
+
+processResources.inputs.properties('version': { -> version})
+processResources.expand('version': { -> version})

baksmali/src/main/resources/baksmali.properties

@@ -0,0 +1 @@
+application.version=${version}

baksmali/src/main/resources/properties/baksmali.properties

@@ -1 +0,0 @@
-application.version=${pom.version}

build.gradle

@@ -1,7 +1,47 @@
 subprojects {
     apply plugin: 'java'
 
+    version = "1.3.4"
+
+    // For non-release builds, we want to append the commit and
+    // dirty status to the version
+    gradle.taskGraph.whenReady {
+        if (!it.hasTask(release)) {
+            def versionSuffix
+            try {
+                def git = org.eclipse.jgit.api.Git.open(file('.'))
+                def head = git.getRepository().getRef("HEAD")
+                versionSuffix = head.getObjectId().abbreviate(8).name()
+
+                if (!git.status().call().clean) {
+                    versionSuffix += '-dirty'
+                }
+            } catch (Exception) {
+                // In case we can't get the commit for some reason,
+                // just use -dev
+                versionSuffix = 'dev'
+            }
+
+            version += '-' + versionSuffix
+        }
+    }
+
     repositories {
         mavenCentral()
     }
+
+    // Note: please don't use this. This is strictly for the official releases
+    // that are posted on the googlecode download page.
+    task release {
+    }
+}
+
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'org.eclipse.jgit:org.eclipse.jgit:2.0.0.201206130900-r'
+    }
 }

smali/build.gradle

@@ -1,5 +1,6 @@
 configurations {
     antlr3
+
     jflex
 }
 
@@ -24,7 +25,7 @@ dependencies {
     compile 'commons-cli:commons-cli:1.2'
 
     testCompile 'junit:junit:4.6'
-    
+
     antlr3 'org.antlr:antlr:3.2'
     jflex 'de.jflex:jflex:1.4.3'
 }
@@ -76,3 +77,6 @@ task generateJflexSource {
 
 compileJava.dependsOn generateAntlrSource, generateJflexSource
 compileTestJava.dependsOn generateTestAntlrSource
+
+processResources.inputs.properties('version': { -> version})
+processResources.expand('version': { -> version})

smali/src/main/resources/smali.properties

@@ -1 +1 @@
-application.version=${pom.version}
+application.version=${version}