From c28485d20628be201fd71fbb6484253adbdd8995 Mon Sep 17 00:00:00 2001
From: Boyd Johnson <johnson.boyd@gmail.com>
Date: Sat, 13 Apr 2024 15:26:21 -0500
Subject: [PATCH] Add Dockerfiles to run tests against different clang versions

---
 dockerfiles/Dockerfile-bindgen | 10 ++++++++++
 dockerfiles/Dockerfile-clang   | 16 ++++++++++++++++
 dockerfiles/README.md          | 31 +++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 dockerfiles/Dockerfile-bindgen
 create mode 100644 dockerfiles/Dockerfile-clang
 create mode 100644 dockerfiles/README.md

diff --git a/dockerfiles/Dockerfile-bindgen b/dockerfiles/Dockerfile-bindgen
new file mode 100644
index 0000000000..09a914b6de
--- /dev/null
+++ b/dockerfiles/Dockerfile-bindgen
@@ -0,0 +1,10 @@
+ARG	LLVM_VERSION=13
+
+FROM clang:${LLVM_VERSION}-ubuntu
+
+RUN	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
+
+COPY	.	/project
+WORKDIR	/project
+
+CMD	["/root/.cargo/bin/cargo", "test", "-p", "bindgen-tests", "--features", "__testing_only_extra_assertions"]
diff --git a/dockerfiles/Dockerfile-clang b/dockerfiles/Dockerfile-clang
new file mode 100644
index 0000000000..c48914f8c6
--- /dev/null
+++ b/dockerfiles/Dockerfile-clang
@@ -0,0 +1,16 @@
+FROM ubuntu:jammy
+
+ENV	DEBIAN_FRONTEND	noninteractive
+
+ARG	LLVM_VERSION=13
+
+RUN	apt-get update && apt-get install -y \
+	wget \
+	curl \
+	gnupg \
+	build-essential \
+	&& wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | gpg --dearmor | tee /usr/share/keyrings/llvm-archive-keyring.gpg > /dev/null \
+	&& echo "deb [signed-by=/usr/share/keyrings/llvm-archive-keyring.gpg] https://apt.llvm.org/jammy/ llvm-toolchain-jammy-${LLVM_VERSION} main" > /etc/apt/sources.list.d/llvm.list \
+	&& apt-get update && apt-get install -y \
+	clang-${LLVM_VERSION} \
+	libclang-${LLVM_VERSION}-dev
diff --git a/dockerfiles/README.md b/dockerfiles/README.md
new file mode 100644
index 0000000000..e020ccc2e7
--- /dev/null
+++ b/dockerfiles/README.md
@@ -0,0 +1,31 @@
+# Dockerfiles for running cargo test on bindgen-tests
+
+## Dockerfile-clang
+
+LLVM_VERSION can be [13, 18] and correspond to the packages at [apt.llvm.org](https://apt.llvm.org/) for Ubuntu 22.04
+
+From the `rust-bingen` repo,
+
+```
+docker build dockerfiles -f dockerfiles/Dockerfile-clang -t clang:14-ubuntu --build-arg LLVM_VERSION=14
+```
+
+## Dockerfile-bindgen
+
+From the `rust-bindgen` repo,
+
+```
+docker build . -f dockerfiles/Dockerfile-bindgen -t bindgen:clang-14-ubuntu --build-arg LLVM_VERSION=14
+```
+
+## Make changes to the repo happen in the docker container
+
+```
+docker run -v .:/project bindgen:clang-14-ubuntu
+```
+
+To pass an environment variable to the container
+
+```
+docker run -v .:/project -e BINDGEN_OVERWRITE_EXPECTED=1 bindgen:clang-14-ubuntu
+```