Wrap Kotlin project to produce kotlin-compiler-lite

Author: Takhion

.circleci/config.yml

@@ -0,0 +1,58 @@
+defaults: &defaults
+  docker: [image: 'circleci/openjdk:8-jdk']
+  working_directory: ~/repo
+  environment:
+    TERM: dumb
+    JVM_OPTS: -Xmx1024m -Xms512m
+    GRADLE_OPTS: '-Dorg.gradle.jvmargs="-Xmx1024m -Xms512m -XX:+HeapDumpOnOutOfMemoryError"'
+
+version: 2
+
+workflows:
+  version: 2
+  build-deploy:
+    jobs:
+      - build:
+          filters:
+            tags:
+              only: /.*/
+      - deploy:
+          context: org-global
+          requires: [build]
+          filters:
+            tags:
+              only: /^v.*/
+            branches:
+              ignore: /.*/
+
+jobs:
+  build:
+    <<: *defaults
+    steps:
+      - checkout
+      - run:
+          name: Sync submodules
+          command: |
+            git submodule sync --recursive
+            git submodule update --recursive --init
+      - run:
+          name: Update external dependencies
+          command: ./gradlew --stacktrace updateDependencies
+      - run:
+          name: Generate artifacts
+          command: ./gradlew --stacktrace publish
+      - store_artifacts:
+          path: &out build/out
+          destination: maven-repo
+      - persist_to_workspace:
+          root: .
+          paths: [*out]
+  deploy:
+    <<: *defaults
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - deploy:
+          name: Upload artifacts
+          command: gradle --stacktrace upload

.gitignore

@@ -5,3 +5,5 @@
 
 /gradle/wrapper/
 /gradlew.bat
+
+/__injected/*/build/

README.md

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+# kotlin-compiler-lite
+[![bintray](https://img.shields.io/bintray/v/takhion/kotlin-metadata/kotlin-compiler-lite.svg?style=flat-square&label=bintray)](https://bintray.com/takhion/kotlin-metadata/kotlin-compiler-lite)
+[![maven-central](https://img.shields.io/maven-central/v/me.eugeniomarletti.kotlin.metadata/kotlin-compiler-lite.svg?style=flat-square&label=maven-central)](https://mvnrepository.com/artifact/me.eugeniomarletti.kotlin.metadata/kotlin-compiler-lite)
+
+Wraps [JetBrains/kotlin] to produce a subset of the [Kotlin] compiler to be used by [kotlin-metadata].
+
+##### It's a standalone project because versioning is parallel (follows the compiler) and building it is quite heavy, especially for the CI.
+
+## Features
+
++ all Kotlin/Java sources, even for external dependencies
++ every package relocated under `me.eugeniomarletti.kotlin.metadata.shadow.*` in both compiled classes and sources
++ "full" version of all [Protocol Buffers], instead of the "lite" one used by default (see [Options > `optimize_for` > `LITE_RUNTIME`](https://developers.google.com/protocol-buffers/docs/proto#options))
++ `.proto` files `package`/`import` directives fixed to reflect their relative locations (allows inspection through [the IDE](https://plugins.jetbrains.com/plugin/8277-protobuf-support))
+
+## Download
+### This should _not_ be used directly, see [kotlin-metadata] instead!
+```gradle
+compile "me.eugeniomarletti.kotlin.metadata:kotlin-compiler-lite:$version"
+```
+
+## Random notes
+
++ since having different versions of the gradle wrapper often makes the CI run out of memory and fail, `gradlew` is a symlink to the one in the wrapped repository
++ doesn't modify any files on the original build, instead relies on runtime injection of modules through an 
+[initialization script]
++ overrides are performed in [`kotlin.init.gradle`] and [`__injected/override/build.gradle.kts`]
++ the [top level build](build.gradle.kts) handles:
+  + downloading external dependencies
+  + starting inner build with init script
+  + uploading generated artifacts
+
+[kotlin-metadata]: https://github.com/Takhion/kotlin-metadata
+[JetBrains/kotlin]: https://github.com/JetBrains/kotlin
+[Kotlin]: https://kotlinlang.org/
+[Protocol Buffers]: https://developers.google.com/protocol-buffers/
+[initialization script]: https://docs.gradle.org/current/userguide/init_scripts.html
+[`kotlin.init.gradle`]: kotlin.init.gradle
+[`__injected/override/build.gradle.kts`]: __injected/override/build.gradle.kts

__injected/empty/build.gradle.kts

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+// dependencies can't be removed, but they can be replaced by an empty project (this)
+
+configurations.create("default")