feat(docker): Add dockerfile and setup to build an image

.commitlintrc.yml

@@ -22,6 +22,7 @@ rules:
   - 1
   - 'always'
   - - core
+    - docker
     - utilities
     - settings
     - typesetter

Dockerfile

@@ -0,0 +1,16 @@
+FROM archlinux
+
+ARG sile_tag=master
+
+LABEL maintainer='Caleb Maclennan <caleb@alerque.com>'
+LABEL version="$sile_tag"
+
+RUN pacman --needed --noconfirm -Syuq && yes | pacman -Sccq
+
+COPY build-aux/build-for-docker.sh /usr/local/bin/
+RUN build-for-docker.sh
+
+COPY build-aux/docker-entrypoint.sh /usr/local/bin
+
+WORKDIR /data
+ENTRYPOINT ["docker-entrypoint.sh"]

Makefile.am

@@ -305,6 +305,10 @@ endif
 
 CLEANFILES = $(bin_SCRIPTS) $(dist_man_MANS) $(DEPFILES) $(ACTUALS) $(TESTPDFS)
 
+.PHONY: docker
+docker:
+	docker build --tag siletypesetter/sile:HEAD ./
+
 gource.webm:
 	mkdir -p /tmp/gravatars
 	convert examples/images/sile-logo.jpg -negate -resize 50% /tmp/sile-logo.jpg

build-aux/build-for-docker.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -e +o pipefail
+
+# Setup AUR helper and other build time dependencies in a way they will be removed from the final image
+pacman --needed --noconfirm --asdeps -S git base-devel go poppler
+useradd -m docker
+echo 'docker:' | chpasswd -e
+mkdir -p /etc/sudoers.d
+echo 'docker ALL = NOPASSWD: ALL' > /etc/sudoers.d/99-docker
+su docker -c 'cd; git clone https://aur.archlinux.org/yay.git; cd yay; makepkg -i --noconfirm --asdeps'
+
+# Install SILE's own prerequisites in a way they will stay in the final image
+deps="fontconfig harfbuzza icu lua ttf-gentium-plus"
+deps+=" lua-{luaepnf,lpeg,cassowary,linenoise,zlib,cliargs,filesystem,repl,sec,socket,penlight,stdlib,vstruct}"
+su docker -c "yay --needed --noconfirm --asexplicit -S $deps"
+
+# Build and install SILE itself
+
+# Tear down build time depencies before layer gets imaged
+su docker -c 'yay --noconfirm -Yccq'
+yes | pacman -Sccq
+userdel -r -f docker
+rm -rf /etc/sudoers.d

build-aux/docker-entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+if [ "${1#-}" != "${1}" ] || [ -z "$(command -v "${1}")" ]; then
+  set -- sile "$@"
+fi
+
+exec "$@"