Gitpod Support (#817)

.gitpod.yml

@@ -0,0 +1,22 @@
+image:
+  file: config/gitpod/Dockerfile
+
+ports:
+  - port: 25565
+    onOpen: notify
+
+vscode:
+  extensions:
+    - eamodio.gitlens
+    - github.vscode-pull-request-github
+    - ms-azuretools.vscode-docker
+    - redhat.java
+    - richardwillis.vscode-gradle
+    - vscjava.vscode-java-debug
+    - vscode.github
+
+tasks:
+  - name: Setup pre-commit hool
+    init: pre-commit install --config config/pre-commit/config.yml --allow-missing-config
+  - name: Install npm packages
+    init: npm ci

CONTRIBUTING.md

@@ -19,6 +19,10 @@ ## Developing
  - **Clone the repository:** `git clone https://github.com/SquidDev-CC/CC-Tweaked.git && cd CC-Tweaked`
  - **Setup Forge:** `./gradlew build`
  - **Run Minecraft:** `./gradlew runClient` (or run the `GradleStart` class from your IDE).
+ - **Optionally:** For small PRs (especially those only touching Lua code), it may be easier to use GitPod, which
+   provides a pre-configured environment: [![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-2b2b2b?logo=gitpod)](https://gitpod.io/#https://github.com/SquidDev-CC/CC-Tweaked/)
+
+   Do note you will need to download the mod after compiling to test.
 
 If you want to run CC:T in a normal Minecraft instance, run `./gradlew build` and copy the `.jar` from `build/libs`.
 These commands may take a few minutes to run the first time, as the environment is set up, but should be much faster

config/gitpod/Dockerfile

@@ -0,0 +1,8 @@
+FROM gitpod/workspace-base
+
+USER gitpod
+
+RUN sudo apt-get -q update \
+ && sudo apt install -yq openjdk-8-jdk openjdk-16-jdk python3-pip \
+ && sudo pip3 install pre-commit \
+ && sudo update-java-alternatives --set java-1.8.0-openjdk-amd64