Update CI tooling

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+image: docker:latest
+services:
+  - docker:dind
+cache:
+  key: ${CI_COMMIT_REF_SLUG}
+  paths:
+    - /usr/portage
+    - /var/portage
+    - /var/lib/docker
+
+build-ebuilds:
+  script:
+    - ./.tools/bin/ci-run-mr

.tools/bin/ci-mkdockercmds

@@ -0,0 +1,23 @@
+#! /usr/bin/env sh
+
+set -e
+
+export PATH=$PATH:$(pwd)/.tools/bin
+export DEBIAN_FRONTEND=noninteractive
+
+hash -r
+
+{
+  # We need git for consecutive commands
+  apt update -qq
+  apt install -qqy git
+
+  # Make sure the latest `master` is also available to diff against
+  git fetch -a origin
+  git checkout master
+  git pull origin master
+  git checkout -
+} > /dev/null
+
+# Generate the testing commands
+updated-ebuilds | ebuild2atom | make-docker-commands --root="$1"

.tools/bin/ci-run-mr

@@ -0,0 +1,31 @@
+#! /usr/bin/env sh
+
+set -e
+
+main()
+{
+  cmds=$(mktemp)
+
+  mkdir -p /usr/portage
+  mkdir -p /var/portage
+
+  # Sync latest portage tree
+  do_cmd docker run -v /usr/portage:/usr/portage gentoo/stage3-amd64 emerge -q --sync
+
+  # Run the script to generate the testing commands
+  do_cmd docker run -w /app -v "$(pwd):/app" rakudo-star sh .tools/bin/ci-mkdockercmds "$(pwd)" > "$cmds"
+
+  # Run the testing commands
+  while read -r cmd
+  do
+    do_cmd $cmd
+  done < "$cmds"
+}
+
+do_cmd()
+{
+  printf "> %s\n" "$*" >&2
+  $@
+}
+
+main "$@"

.tools/bin/ebuild2atom

@@ -0,0 +1,14 @@
+#! /usr/bin/env perl6
+
+#| Convert a path to an ebuild into an atom that can be passed to emerge.
+sub MAIN (*@ebuilds)
+{
+	@ebuilds = $*IN.lines unless @ebuilds;
+
+	for @ebuilds {
+		my $category = $_.split("/").head;
+		my $package = $_.split("/").tail.IO.extension("").Str;
+
+		say "=$category/$package"
+	}
+}

.tools/bin/make-docker-commands

@@ -0,0 +1,58 @@
+#! /usr/bin/env perl6
+
+#| Build packages
+sub MAIN (
+	#| Host's path to the Portage tree.
+	Str:D :$tree = "/usr/portage",
+
+	#| Host's path to Portage's var dir. This holds binpkgs and distfiles.
+	Str:D :$var = "/var/portage",
+
+	#| Host's path to the root of the overlay.
+	Str:D :$root is copy = "",
+
+	#| A list of packages to build
+	*@packages,
+) {
+	@packages = $*IN.lines unless @packages;
+	$root = shell("git rev-parse --show-toplevel", :out).out.slurp.trim unless $root;
+
+	build-pkg($_, :$tree, :$var, root => $root.IO) for @packages;
+}
+
+#| Build a given package in a clean Docker container
+sub build-pkg (
+	#| The name of the package to build
+	Str:D $package,
+
+	#| Host's path to the Portage tree.
+	Str:D :$tree = "/usr/portage",
+
+	#| Host's path to Portage's var dir. This holds binpkgs and distfiles.
+	Str:D :$var = "/var/portage",
+
+	#| Path to overlay's root
+	IO::Path:D :$root,
+) {
+	my Pair @volumes = (
+		$tree => "/usr/portage",
+		$var => "/var/portage",
+		$root.add(".tools").add("etc").absolute => "/etc/portage",
+		$root.absolute => "/app",
+	);
+
+	my Str @cmd = <
+		docker
+		run
+	>;
+
+	for @volumes {
+		@cmd.push: "-v $_.key():$_.value()";
+	}
+
+	@cmd.push: "gentoo/stage3-amd64";
+	@cmd.push: "emerge";
+	@cmd.push: $package;
+
+	@cmd.join(" ").say;
+}

.tools/bin/mkcommit

@@ -0,0 +1,18 @@
+#! /usr/bin/env perl6
+
+sub MAIN (
+	*@words,
+) {
+	my @ebuilds = (run « git diff --name-status master », :out).out.lines.grep(*.ends-with(".ebuild"));
+
+	if (@ebuilds.elems != 1) {
+		exit note q:to/EOF/;
+			Committed ebuilds does not equal to 1. Each commit should only
+			contain a single ebuild update.
+			EOF
+	}
+
+	my $ebuild = @ebuilds.head.split("\t").tail.split("/").head(2).join("/");
+
+	run « git commit -S -m "$ebuild: @words.join(" ")" »;
+}

.tools/bin/updated-ebuilds

@@ -0,0 +1,11 @@
+#! /usr/bin/env perl6
+
+#| Get a list of all changed package atoms.
+sub MAIN ()
+{
+	(run « git diff --name-status master », :out).out.lines
+		.grep(*.ends-with(".ebuild"))
+		.map(*.split("\t").tail)
+		.map(*.say)
+		;
+}

.tools/etc/make.conf

@@ -0,0 +1,33 @@
+COMMON_FLAGS="-O2 -pipe"
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+FCFLAGS="${COMMON_FLAGS}"
+FFLAGS="${COMMON_FLAGS}"
+
+FEATURES="
+	$FEATURES
+	buildpkg
+	network-sandbox
+	parallel-fetch
+	parallel-install
+	sandbox
+	userfetch
+	userpriv
+	usersandbox
+	usersync
+"
+
+EMERGE_DEFAULT_OPTS="
+	$EMERGE_DEFAULT_OPTS
+	--binpkg-respect-use=y
+	--binpkg-changed-deps=y
+	--tree
+	--usepkg
+	--verbose
+"
+
+PKGDIR=/var/portage/packages
+DISTDIR=/var/portage/distfiles
+
+LC_MESSAGES=C
+L10N="en"

.tools/etc/make.profile

@@ -0,0 +1 @@
+../../usr/portage/profiles/default/linux/amd64/17.0/desktop

.tools/etc/package.accept_keywords

@@ -0,0 +1 @@
+*/*::sk-overlay ~*

.tools/etc/repo.postsync.d/example

@@ -0,0 +1,51 @@
+#!/bin/sh
+# Example /etc/portage/repo.postsync.d script. Make it executable (chmod +x) for
+# Portage to process it.
+#
+# With portage-2.2.16 and newer, all repo.postsync.d hooks will be called multiple
+# times after syncing each repository.
+#
+# Older versions of Portage support syncing only one repository.
+# In those versions, the postsync.d hooks will be called only once,
+# and they will not be passed any parameters.
+
+# On a repo.postsync.d hook call, positional parameters contain
+# information about the just-synced repository.
+
+# Your hook can control it's actions depending on any of the three
+# parameters passed in to it.
+#
+# They are as follows:
+#
+# The repository name.
+repository_name=${1}
+# The URI to which the repository was synced.
+sync_uri=${2}
+# The path to the repository.
+repository_path=${3}
+
+# Portage assumes that a hook succeeded if it exits with 0 code. If no
+# explicit exit is done, the exit code is the exit code of last spawned
+# command. Since our script is a bit more complex, we want to control
+# the exit code explicitly.
+ret=0
+
+if [ -n "${repository_name}" ]; then
+	# Repository name was provided, so we're in a post-repository hook.
+	echo "* In post-repository hook for ${repository_name}"
+	echo "** synced from remote repository ${sync_uri}"
+	echo "** synced into ${repository_path}"
+
+	# Gentoo comes with pregenerated cache but the other repositories
+	# usually don't. Generate them to improve performance.
+	if [ "${repository_name}" != "gentoo" ]; then
+		if ! egencache --update --repo="${repository_name}" --jobs=4
+		then
+			echo "!!! egencache failed!"
+			ret=1
+		fi
+	fi
+fi
+
+# Return explicit status.
+exit "${ret}"

.tools/etc/repo.postsync.d/q-reinit

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+repository_name=$1
+repository_path=$3
+
+if [ -n "${repository_name}" ]; then
+	q ${PORTAGE_QUIET:+-q} --reinitialize="${repository_path}"
+fi
+
+:

.tools/etc/repos.conf/sk-overlay.conf

@@ -0,0 +1,5 @@
+[sk-overlay]
+priority = 50
+location = /app
+layman-type = git
+auto-sync = No

.travis.yml

@@ -1,33 +1,7 @@
-#
-# Run repoman via travis
-# See https://github.com/mrueg/repoman-travis
-#
-language: python
-python:
-    - pypy
-env:
-    - PORTAGE_VER="2.3.51"
-before_install:
-    - sudo apt-get -qq update
-    - pip install lxml pyyaml
-before_script:
-    - sudo chmod a+rwX /etc/passwd /etc/group /etc /usr
-    - mkdir -p travis-overlay /etc/portage /usr/portage/distfiles
-    - mv !(travis-overlay) travis-overlay/
-    - mv .git travis-overlay/
-    - wget "https://raw.githubusercontent.com/mrueg/repoman-travis/master/.travis.yml" -O .travis.yml.upstream
-    - wget "https://raw.githubusercontent.com/mrueg/repoman-travis/master/spinner.sh"
-    - wget -qO - "https://github.com/gentoo/portage/archive/portage-${PORTAGE_VER}.tar.gz" | tar xz
-    - wget -qO - "https://github.com/gentoo-mirror/gentoo/archive/master.tar.gz" | tar xz -C /usr/portage --strip-components=1
-    - chmod a+rwx spinner.sh
-    - echo "portage:x:250:250:portage:/var/tmp/portage:/bin/false" >> /etc/passwd
-    - echo "portage::250:portage,travis" >> /etc/group
-    - wget "https://www.gentoo.org/dtd/metadata.dtd" -O /usr/portage/distfiles/metadata.dtd
-    - ln -s $TRAVIS_BUILD_DIR/portage-portage-${PORTAGE_VER}/cnf/repos.conf /etc/portage/repos.conf
-    - ln -s /usr/portage/profiles/default/linux/amd64/17.0 /etc/portage/make.profile
-    - SIZE=$(stat -c %s .travis.yml.upstream)
-    - if ! cmp -n $SIZE -s .travis.yml .travis.yml.upstream; then echo -e "\e[31m !!! .travis.yml outdated! Update available https://github.com/mrueg/repoman-travis \e[0m" > /tmp/update ; fi
-    - cd travis-overlay
+sudo: required
+language: generic
+services:
+  - docker
+
 script:
-    - ./../spinner.sh "python ../portage-portage-${PORTAGE_VER}/repoman/bin/repoman full -d"
-# You can append own scripts after this line
+  - sudo ./.tools/bin/ci-run-mr