Add task to bump versions, only build tags

.gitlab-ci.yml

@@ -7,4 +7,6 @@ test-build-deploy:
   stage: test
   script:
     - ./gradlew clean assembleRelease sourcesJar test --stacktrace
-    - ./gradlew publish --stacktrace
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+    - ./gradlew publish --stacktrace
+  only:
+    - /^v[0-9]+$
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library/build.gradle

@@ -3,10 +3,21 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 group = 'com.frostnerd.utils'
+version = '1.0.5'
 ext {
-    libraryGroupId = group
     libraryArtifactId = rootProject.name
-    libraryVersion = '1.0.0'
+}
+
+task bumpPatch(type: Exec) {
+    dependsOn("bumpPatchVersion")
+}
+
+task bumpMinor(type: Exec) {
+    dependsOn("bumpMinorVersion")
+}
+
+task bumpMajor(type: Exec) {
+    dependsOn("bumpMajorVersion")
 }
 
 android {
@@ -43,7 +54,7 @@ android {
         exclude 'META-INF/ASL2.0'
     }
     compileOptions {
-        kotlinOptions.freeCompilerArgs += ['-module-name', "$libraryGroupId.$libraryArtifactId"]
+        kotlinOptions.freeCompilerArgs += ['-module-name', "$group.$libraryArtifactId"]
     }
 }
 
@@ -72,12 +83,13 @@ task sourcesJar(type: Jar) {
     classifier = 'sources'
 }
 
+
 afterEvaluate {
     publishing {
         publications {
             aar(MavenPublication) {
-                groupId libraryGroupId
-                version libraryVersion
+                groupId group
+                version version
                 artifactId libraryArtifactId
 
                 artifact("$buildDir/outputs/aar/library-release.aar")
@@ -110,4 +122,67 @@ afterEvaluate {
         }
     }
 }
-publish.dependsOn("assembleRelease", "sourcesJar")
\ No newline at end of file
+publish.dependsOn("assembleRelease", "sourcesJar")
+
+
+class Version {
+    private int major
+    private int minor
+    private int patch
+
+    Version(String version) {
+        def (major, minor, patch) = version.tokenize('.')
+        this.major = major.toInteger()
+        this.minor = minor.toInteger()
+        this.patch = patch.toInteger()
+    }
+
+    void bumpMajor() {
+        major += 1
+        minor = 0
+        patch = 0
+    }
+
+    void bumpMinor() {
+        minor += 1
+        patch = 0
+    }
+
+    void bumpPatch() {
+        patch += 1
+    }
+    String getName() { "$major.$minor.$patch" }
+}
+
+tasks.addRule("Pattern: bump<TYPE>Version") { String taskName ->
+    if (taskName.matches("bump(Major|Minor|Patch)Version")) {
+        task(taskName) {
+            doLast {
+                String type = (taskName - 'bump' - 'Version')
+
+                println "Bumping ${type.toLowerCase()} version"
+                def parsedVersion = new Version(version)
+                parsedVersion."bump$type"()
+
+                println "${version} => ${parsedVersion.name}"
+
+                def updated = buildFile.getText()
+                updated = updated.replaceFirst("version\\s*=\\s*'$version'", "version = '${parsedVersion.name}'")
+                buildFile.setText(updated)
+
+                exec {
+                    commandLine("git", "add", "build.gradle")
+                }
+                exec {
+                    commandLine("git", "commit", "-m", "\"Bump version to ${parsedVersion.name}\"")
+                }
+                exec {
+                    commandLine("git", "tag", "v${parsedVersion.name}")
+                }
+                exec {
+                    commandLine("git", "push", "origin", "v${parsedVersion.name}")
+                }
+            }
+        }
+    }
+}
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