From 563b14a97f6208e790843931afc54981f8e8f4b3 Mon Sep 17 00:00:00 2001
From: Dsaster <78389441+dsastr@users.noreply.github.com>
Date: Sat, 6 Feb 2021 01:44:52 +0100
Subject: document building with Docker

---
 INSTALL.md        | 14 +++++++++++++-
 docker/Dockerfile | 11 +++++++++++
 docker/build.sh   | 20 ++++++++++++++++++++
 3 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 docker/Dockerfile
 create mode 100755 docker/build.sh

diff --git a/INSTALL.md b/INSTALL.md
index 35eb054d..6cbe5111 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -54,6 +54,18 @@ Run `make` to build the ROM. The ROM will be output as `build/diamond.us/pokedia
 
 To build Pokemon Pearl, run `make pearl`. You do not need to clean your working tree in between compiling. Pokemon Pearl will be built as `build/pearl.us/pokepearl.us.nds`.
 
-Windows Users:
+#### Windows
 
 If you get an error in saving configuration settings when specifying the license file, you need to add a system environment variable called LM_LICENSE_FILE and point it to the license.dat file. Alternatively, run mwccarm.exe from an Administrator command prompt, PowerShell, or WSL session.
+
+#### Docker
+
+If you find issues building the ROMs with the above methods, you can try the Docker-specific build script. It will build a Docker image with the system requirements above, and run the `make` scripts (any specified parameter will be passed to the `make` command):
+
+```console
+$ make clean
+$ ./docker/build.sh # build pokediamond
+$ ./docker/build.sh pearl # build pokepearl
+```
+
+Note: Docker may not run at a full performance if its underlying Linux kernel is being virtualized (mainly Windows and macOS hosts).
diff --git a/docker/Dockerfile b/docker/Dockerfile
new file mode 100644
index 00000000..3bc11235
--- /dev/null
+++ b/docker/Dockerfile
@@ -0,0 +1,11 @@
+FROM ubuntu:20.04
+
+RUN dpkg --add-architecture i386 && \
+apt update && \
+DEBIAN_FRONTEND=noninteractive apt install -y --no-install-recommends binutils-arm-none-eabi build-essential git libpng-dev wine wine32 && \
+rm -r /var/cache/apt/archives /var/lib/apt/lists
+
+# Run a persistent wineserver to avoid errors like
+#     wine: a wine server seems to be running, but I cannot connect to it.
+RUN mkdir -p /root/.wine
+CMD /usr/lib/wine/wineserver32 -f -p
diff --git a/docker/build.sh b/docker/build.sh
new file mode 100755
index 00000000..1ce28543
--- /dev/null
+++ b/docker/build.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -eou pipefail
+
+PROJECT_NAME=${PROJECT_NAME:-pokediamond}
+PROJECT_PATH=${PROJECT_PATH:-$(dirname $(pwd))}
+
+# Build container image
+IMAGE_NAME=${IMAGE_NAME:-$PROJECT_NAME-image}
+docker build -t $IMAGE_NAME .
+
+# Start container and wine server
+CONTAINER_NAME=${CONTAINER_NAME:-$PROJECT_NAME}
+docker run -d -i --name $CONTAINER_NAME --rm -t -v $PROJECT_PATH:/$PROJECT_NAME -w /$PROJECT_NAME $IMAGE_NAME
+
+# Build selected project, always exit successfully to ensure container stops
+docker exec -i -t $CONTAINER_NAME make $@ || true
+
+# Exit the container and remove
+docker stop $CONTAINER_NAME
-- 
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