From 5dca1d9f155a441d93ed8367fb86e4f037fe32bb Mon Sep 17 00:00:00 2001
From: Glenn <glenux@glenux.net>
Date: Thu, 26 Oct 2023 14:40:39 +0200
Subject: [PATCH] ci: add crossbuild scripts (drafts)

---
 scripts/ci.crossbuild-alpine.sh | 64 +++++++++++++++++++++++++++++
 scripts/ci.crossbuild-debian.sh | 71 +++++++++++++++++++++++++++++++++
 2 files changed, 135 insertions(+)
 create mode 100755 scripts/ci.crossbuild-alpine.sh
 create mode 100755 scripts/ci.crossbuild-debian.sh

diff --git a/scripts/ci.crossbuild-alpine.sh b/scripts/ci.crossbuild-alpine.sh
new file mode 100755
index 0000000..9a870e6
--- /dev/null
+++ b/scripts/ci.crossbuild-alpine.sh
@@ -0,0 +1,64 @@
+#!/bin/sh -eu
+# vim: set ts=2 sw=2 et:
+
+LOCAL_PROJECT_PATH="${1-$PWD}"
+
+TARGET_ARCH="${2-amd64}"
+
+DOCKER_IMAGE=""
+
+BUILD_COMMAND=" \
+  shards build --static --release \
+  && chown 1000:1000 -R bin \
+  && find bin -type f -maxdepth 1 -exec mv {} {}_${TARGET_ARCH} \; \
+"
+INSTALL_CRYSTAL=" \
+  echo '@edge http://dl-cdn.alpinelinux.org/alpine/edge/community' >>/etc/apk/repositories \
+  && apk add --update --no-cache --force-overwrite \
+    crystal@edge \
+    g++ \
+    gc-dev \
+    libxml2-dev \
+    llvm16-dev \
+    llvm16-static \
+    make \
+    musl-dev \
+    openssl-dev \
+    openssl-libs-static \
+    pcre-dev \
+    shards@edge \
+    yaml-dev \
+    yaml-static \
+    zlib-dev \
+    zlib-static \
+"
+
+# setup arch
+case "$TARGET_ARCH" in
+  amd64) DOCKER_IMAGE="alpine" ;;
+  arm64) DOCKER_IMAGE="multiarch/alpine:aarch64-edge" ;;
+  armel) DOCKER_IMAGE="multiarch/alpine:armv7-edge" ;;
+  # armhf) DOCKER_IMAGE="multiarch/alpine:armhf-edge" ;;
+  # i386)  DOCKER_IMAGE="multiarch/alpine:x86-edge" ;;
+  mips)  DOCKER_IMAGE="multiarch/alpine:mips-edge" ;;
+  mipsel)  DOCKER_IMAGE="multiarch/alpine:mipsel-edge" ;;
+  powerpc)  DOCKER_IMAGE="multiarch/alpine:powerpc-edge" ;;
+  ppc64el)  DOCKER_IMAGE="multiarch/alpine:ppc64el-edge" ;;
+  s390x)  DOCKER_IMAGE="multiarch/alpine:s390x-edge" ;;
+esac
+
+# Compile Crystal project statically for target architecture
+docker pull multiarch/qemu-user-static:register
+docker run \
+  --rm \
+  --privileged \
+  multiarch/qemu-user-static:register \
+  --reset
+docker run \
+  -it \
+  -v "$LOCAL_PROJECT_PATH:/app" \
+  -w /app \
+  --rm \
+  "$DOCKER_IMAGE" \
+  /bin/sh -c "$INSTALL_CRYSTAL && $BUILD_COMMAND"
+
diff --git a/scripts/ci.crossbuild-debian.sh b/scripts/ci.crossbuild-debian.sh
new file mode 100755
index 0000000..379052c
--- /dev/null
+++ b/scripts/ci.crossbuild-debian.sh
@@ -0,0 +1,71 @@
+#!/bin/sh -eu
+# vim: set ts=2 sw=2 et:
+
+LOCAL_PROJECT_PATH="${1-$PWD}"
+
+TARGET_ARCH="${2-amd64}"
+
+DOCKER_IMAGE=""
+
+BUILD_COMMAND=" \
+  shards build --static --release \
+  && chown 1000:1000 -R bin \
+  && find bin -type f -maxdepth 1 -exec mv {} {}_${TARGET_ARCH} \; \
+"
+
+# crystal
+INSTALL_CRYSTAL=" \
+  sed -i -e 's/Types: deb/Types: deb deb-src/' /etc/apt/sources.list.d/debian.sources \
+  && echo 'deb http://deb.debian.org/debian unstable main' > /etc/apt/sources.list.d/sid.list \
+  && echo 'deb-src http://deb.debian.org/debian unstable main' >> /etc/apt/sources.list.d/sid.list \
+  && apt-get update \
+  && apt-get install -y \
+    g++ \
+    libxml2-dev \
+    llvm-dev \
+    make \
+    libssl-dev \
+    libpcre3-dev \
+    libyaml-dev \
+    zlib1g-dev \
+    dpkg-dev \
+    debuild \
+  && apt source crystal \
+  && apt build-dep crystal \
+  && ls -lF \
+  && debuild -b -uc -us \
+"
+
+# setup arch
+case "$TARGET_ARCH" in
+  amd64) DOCKER_IMAGE="debian" ;;
+  arm64) DOCKER_IMAGE="arm64v8/debian" ;;
+  armel) DOCKER_IMAGE="arm32v7/debian" ;;
+  armhf) DOCKER_IMAGE="armhf/debian" ;;
+  i386)  DOCKER_IMAGE="x86/debian" ;;
+  mips)  DOCKER_IMAGE="mips/debian" ;;
+  mipsel)  DOCKER_IMAGE="mipsel/debian" ;;
+  powerpc)  DOCKER_IMAGE="powerpc/debian" ;;
+  ppc64el)  DOCKER_IMAGE="ppc64el/debian" ;;
+  s390x)  DOCKER_IMAGE="s390x/debian" ;;
+esac
+
+# Compile Crystal project statically for target architecture
+docker pull multiarch/qemu-user-static
+
+docker run \
+  --rm \
+  --privileged \
+  multiarch/qemu-user-static \
+  --reset -p yes
+
+set -x
+docker run \
+  -it \
+  -v "$LOCAL_PROJECT_PATH:/app" \
+  -w /app \
+  --rm \
+  --platform linux/arm64 \
+  "$DOCKER_IMAGE" \
+  /bin/sh -c "$INSTALL_CRYSTAL && $BUILD_COMMAND"
+