1 files changed, 147 insertions, 0 deletions
diff --git a/overlay/usr/local/bin/build.sh b/overlay/usr/local/bin/build.sh
new file mode 100755
index 0000000..ac45cf9
--- /dev/null
+++ b/overlay/usr/local/bin/build.sh
@@ -0,0 +1,147 @@
+#!/bin/sh
+
+set -eu
+
+readonly APORTSDIR=$HOME/aports
+readonly REPODEST=$HOME/packages
+readonly REPOS="main community testing non-free"
+readonly MIRROR=http://dl-cdn.alpinelinux.org/alpine
+readonly REPOURL=https://github.com/alpinelinux/aports
+readonly ARCH=$(apk --print-arch)
+# Drone variables
+readonly BRANCH=$DRONE_COMMIT_BRANCH
+readonly PR=$DRONE_PULL_REQUEST
+
+msg() {
+	local color=${2:-green}
+	case "$color" in
+		red) color="31";;
+		green) color="32";;
+		yellow) color="33";;
+		blue) color="34";;
+		*) color="32";;
+	esac
+	printf "\033[1;%sm>>>\033[1;0m %s\n" "$color" "$1" | xargs >&2
+}
+
+die() {
+	msg "$1" red
+	exit 1
+}
+
+get_release() {
+	case $BRANCH in
+		*-stable) echo v${BRANCH%-*};;
+		master) echo edge;;
+		*) die "Branch \"$BRANCH\" not supported!"
+	esac
+}
+
+build_aport() {
+	local repo="$1" aport="$2"
+	cd "$APORTSDIR/$repo/$aport"
+	if abuild -r; then
+		checkapk || true
+		aport_ok="$aport_ok $repo/$aport"
+	else
+		aport_ng="$aport_ng $repo/$aport"
+	fi
+}
+
+check_aport() {
+	local repo="$1" aport="$2"
+	cd "$APORTSDIR/$repo/$aport"
+	if ! abuild check_arch 2>/dev/null; then
+		aport_na="$aport_na $repo/$aport"
+		return 1
+	fi
+}
+
+changed_repos() {
+	cd "$APORTSDIR"
+	for repo in $REPOS; do
+		git diff --exit-code remotes/origin/$BRANCH -- $repo >/dev/null \
+			|| echo "$repo"
+	done
+}
+
+set_repositories_for() {
+	local target_repo="$1" repos= repo=
+	local release=$(get_release)
+	for repo in $REPOS; do
+		[ "$repo" = "non-free" ] && continue
+		repos="$repos $MIRROR/$release/$repo"
+		[ "$repo" = "$target_repo" ] && break
+	done
+	sudo sh -c "printf '%s\n' $repos > /etc/apk/repositories"
+	sudo apk update
+}
+
+changed_aports() {
+	cd "$APORTSDIR"
+	local repo="$1"
+	local aports=$(git diff --name-only --diff-filter=ACMR --relative="$repo" \
+		remotes/origin/$BRANCH -- "*/APKBUILD" | xargs -I% dirname %)
+	ap builddirs -d "$APORTSDIR/$repo" $aports 2>/dev/null | xargs -I% basename % | xargs
+}
+
+setup_system() {
+	sudo sh -c "echo $MIRROR/$(get_release)/main > /etc/apk/repositories"
+	sudo apk -U upgrade -a || apk fix || die "Failed to up/downgrade system"
+	abuild-keygen -ain
+	sudo sed -i 's/JOBS=[0-9]*/JOBS=$(nproc)/' /etc/abuild.conf
+	mkdir -p "$REPODEST"
+}
+
+create_workspace() {
+	msg "Cloning aports and applying PR$PR"
+	git clone --depth=1 --branch $BRANCH $REPOURL $APORTSDIR
+	wget -qO- $REPOURL/pull/$PR.patch | git -C $APORTSDIR am
+}
+
+sysinfo() {
+	printf ">>> Host system information (arch: %s, release: %s) <<<\n" "$ARCH" "$(get_release)"
+	printf "- Number of Cores: %s\n" $(nproc)
+	printf "- Memory: %s Gb\n" $(awk '/^MemTotal/ {print ($2/1024/1024)}' /proc/meminfo)
+	printf "- Free space: %s\n" $(df -hP / | awk '/\/$/ {print $4}')
+}
+
+aport_ok=
+aport_na=
+aport_ng=
+failed=
+
+sysinfo || true
+setup_system || die "Failed to setup system"
+create_workspace || die "Failed to create workspace"
+
+for repo in $(changed_repos); do
+	set_repositories_for "$repo"
+	for pkgname in $(changed_aports "$repo"); do
+		if check_aport "$repo" "$pkgname"; then
+			build_aport "$repo" "$pkgname"
+		fi
+	done
+done
+
+echo "### Build summary ###"
+
+for ok in $aport_ok; do
+	msg "$ok: build succesfully"
+done
+
+for na in $aport_na; do
+	msg "$na: disabled for $ARCH" yellow
+done
+
+for ng in $aport_ng; do
+	msg "$ng: build failed" red
+	failed=true
+done
+
+if [ "$failed" = true ]; then
+	exit 1
+elif [ -z "$aport_ok" ]; then
+	msg "No packages found to be built." yellow
+fi
+