feat: shamelessly copy pkgkit from sr.ht-apkbuilds

Copy some code from sourcehut's alpine build[0] to build my own
packages.

[0]: https://git.sr.ht/~sircmpwn/sr.ht-apkbuilds

1 files changed, 336 insertions, 0 deletions

diff --git a/pkgkit b/pkgkit
new file mode 100755
index 0000000..327c0ec
--- /dev/null
+++ b/pkgkit
@@ -0,0 +1,336 @@
+#!/bin/sh -eu
+usage() {
+	printf "%s\n\n" "Usage: $0 [command...] [flags...] [args...]"
+	printf "%s\n" "$0 add-repo [-s] <name> <key>"
+	printf "\t%s\n" "Trusts <key> and adds the local repo to /etc/apk/repositories"
+	printf "\t%s\n\n" "-s: set this key as default in abuild.conf"
+	printf "%s\n" "$0 build [-cu] [-v <pkgver>] <packages...>"
+	printf "\t%s\n" "Builds packages"
+	printf "\t%s\n" "-c: update checksums"
+	printf "\t%s\n" "-u: update pkgrel"
+	printf "\t%s\n\n" "-v <pkgver>: update pkgver"
+	printf "%s\n" "$0 pkgver"
+	printf "\t%s\n\n" "Prints the suggested package ver for this directory"
+	printf "%s\n" "$0 upload <ssh server> <remote path> <packages...>"
+	printf "\t%s\n" "Uploads packages via rsync and updates remote APKINDEX"
+}
+
+get_pkgvar() (
+	var="$1"
+	set +u
+	. APKBUILD
+	eval 'printf "%s\n" "$'"$var"'"'
+)
+
+find_repos() (
+	find . -maxdepth 1 -type d -not -name . -not -name .git
+)
+
+find_pkg_repo() (
+	pkg=$1
+	for repo in $(find_repos)
+	do
+		if [ -d "$repo"/"$pkg" ]
+		then
+			echo "$repo"
+			return 0
+		fi
+	done
+	return 1
+)
+
+update_pkgrel() (
+	pkg="$1"
+	pkgver="$(get_pkgvar pkgver)"
+	prev_ver=$(apk search -x "$pkg" | cut -c$((${#pkg}+2))-)
+	prev_pkgver=$(printf "%s" "$prev_ver" | cut -d'-' -f1)
+	prev_pkgrel=$(printf "%s" "$prev_ver" | cut -d'-' -f2 | cut -d'r' -f2-)
+	if [ "$prev_pkgver" == "$pkgver" ]
+	then
+		pkgrel=$((prev_pkgrel + 1))
+		sed -e "s/pkgrel=.*/pkgrel=$pkgrel/" -i APKBUILD
+	fi
+)
+
+update_pkgver() {
+	pkgver="$1"
+	prev_pkgver=$(apk search -x ${project} | cut -d '-' -f2)
+	sed -e "s/pkgver=.*/pkgver=$pkgver/" -i APKBUILD
+	if [ "$prev_pkgver" != "$pkgver" ]
+	then
+		sed -e "s/pkgrel=.*/pkgrel=0/" -i APKBUILD
+	fi
+}
+
+add_repo() {
+	set_default=0
+	while getopts s flag
+	do
+		case $flag in
+			s) set_default=1 ;;
+			*) usage && exit 1 ;;
+		esac
+	done
+	shift $((OPTIND-1))
+	echo "$@"
+	if [ $# -ne 2 ]
+	then
+		usage
+		exit 1
+	fi
+	repo="$1"
+	key="$2"
+	mkdir -p ~/packages/$repo
+	echo ~/packages/$repo | cat - /etc/apk/repositories > /tmp/repositories
+	sudo mv /tmp/repositories /etc/apk/repositories
+	if ! [ -f "$key" ]
+	then
+		echo "Warning: generating new abuild key"
+		key="$HOME/.abuild/abuild.rsa"
+		mkdir -p $HOME/.abuild
+		(
+			umask 0007
+			openssl genrsa -out "$key" 2048
+		)
+	fi
+	sudo openssl rsa -in $key -pubout \
+		-out /etc/apk/keys/$(basename "$key").pub
+	if [ $set_default -eq 1 ]
+	then
+		echo "PACKAGER_PRIVKEY="'"'$key'"' >> \
+			~/.abuild/abuild.conf
+	fi
+}
+
+build() (
+	builddeps=0
+	checksum=0
+	updpkgrel=0
+	pkgver=""
+	# Disable progress on abuild-apk
+	cat <<-"EOF" | sudo tee /usr/local/bin/abuild-apk
+	#!/bin/sh
+	exec /usr/bin/abuild-apk --no-progress $@
+	EOF
+	sudo chmod +x /usr/local/bin/abuild-apk
+	export PATH=/usr/local/bin:$PATH
+	while getopts Rcuv: flag
+	do
+		case $flag in
+			R) builddeps=1 ;;
+			c) checksum=1 ;;
+			u) updpkgrel=1 ;;
+			v) pkgver="$OPTARG" ;;
+			*) usage && exit 1 ;;
+		esac
+	done
+	shift $((OPTIND-1))
+	if [ $# -eq 0 ]
+	then
+		echo "No packages specified."
+		exit 1
+	fi
+	for pkg in $@
+	do
+		repo="$(find_pkg_repo "$pkg")"
+		(
+			cd "$repo"/"$pkg"
+			if [ -n "$pkgver" ]
+			then
+				update_pkgver "$pkgver"
+			fi
+			if [ $updpkgrel -eq 1 ]
+			then
+				update_pkgrel "$pkg"
+			fi
+			if [ $checksum -eq 1 ]
+			then
+				abuild checksum
+			fi
+			if [ $builddeps -eq 1 ]
+			then
+				abuild -R
+			else
+				abuild -r
+			fi
+		)
+	done
+)
+
+print_pkgver() {
+	if [ $# -ne 0 ]
+	then
+		usage
+		exit 1
+	fi
+	if [ -d .git ]
+	then
+		set +e
+		pkgver=$(git describe --abbrev=0 2>/dev/null)
+		if [ $? -ne 0 ]
+		then
+			pkgver=0
+		fi
+		set -e
+		if ! git describe --exact-match HEAD >/dev/null 2>&1
+		then
+			cdate=$(git show -s -1 --format='%ci' HEAD)
+			cdate=$(echo "$cdate" | cut -d' ' -f1 | sed -e 's/-//g')
+			pkgver="${pkgver}_git${cdate}"
+		fi
+	elif [ -d .hg ]
+	then
+		pkgver=$(hg id -T '{latesttag}')
+		if [ "$(hg id -T '{latesttagdistance}')" -ne 0 ]
+		then
+			pkgver="$(hg id -T '{latesttag}_hg{sub("-", "", date|shortdate)}')"
+		fi
+	else
+		pkgver=unknown_0000
+	fi
+	echo "$pkgver"
+}
+
+mirror_ver() (
+	mirror="$1"
+	pkg="$2"
+	apk policy "$pkg" | while read -r line
+	do
+		case "$line" in
+			*:)
+				ver="${line%:}"
+				ver="${ver## }"
+				;;
+			*$mirror*)
+				echo "$ver"
+				;;
+		esac
+	done
+)
+
+get_aver() {
+	aver="${REPOSITORY:-}"
+	if [ ${#aver} -eq 0 ]
+	then
+		. /etc/os-release
+		aver="v$(printf "%s" "$VERSION_ID" | cut -d. -f1-2)"
+	fi
+	echo "$aver"
+}
+
+upload_pkg() (
+	repo="$1"
+	pkg="$2"
+	arch="$(uname -m)"
+	aver="$(get_aver)"
+
+	set -x
+	path="$remote_path/$aver/$repo/$arch"
+	ssh "$remote" mkdir -p "$path"
+
+	url=$(echo "$remote" | cut -d@ -f2)
+	prev_ver=$(mirror_ver "$url" "$pkg")
+
+	for ver in $prev_ver
+	do
+		if [ "$prev_ver" != "none" ]
+		then
+			ssh "$remote" rm -f "$path/$pkg-$ver.apk"
+		fi
+	done
+	pkgver="$(get_pkgvar pkgver)"
+	pkgrel="$(get_pkgvar pkgrel)"
+
+	rsync --blocking-io -rsP \
+		~/packages/"$repo/$arch/$pkg-$pkgver-r$pkgrel.apk" "$remote":"$path/"
+	set +x
+)
+
+update_index() (
+	repo="$1"
+	arch="$(uname -m)"
+
+	. /etc/os-release
+	aver="$(get_aver)"
+
+	path="$remote_path/$aver/$repo/$arch"
+
+	set -x
+	ssh "$remote" \
+		find "$path" -type f -name '*.apk' -print0 |
+		ssh "$remote" xargs -0 apk index \
+			--rewrite-arch "$(uname -m)" \
+			-x "$path"/APKINDEX.tar.gz \
+			-o "$path"/APKINDEX.unsigned.tar.gz
+	rsync --blocking-io -rP \
+		"$remote:$path/APKINDEX.unsigned.tar.gz" \
+		/tmp/APKINDEX.tar.gz
+	abuild-sign /tmp/APKINDEX.tar.gz
+	rsync --blocking-io -rP /tmp/APKINDEX.tar.gz "$remote:$path/"
+	set +x
+)
+
+upload() (
+	if [ $# -lt 2 ]
+	then
+		usage
+		exit 1
+	fi
+	remote="$1"
+	remote_path="$2"
+	shift 2
+	if [ $# -eq 0 ]
+	then
+		echo "No packages specified"
+		exit 1
+	fi
+	repos=""
+	for pkg in $@
+	do
+		repo=$(find_pkg_repo "$pkg")
+		if ! echo "$repos" | grep "$repo" >/dev/null
+		then
+			repos="$repo $repos"
+		fi
+		(
+			cd "$repo"/"$pkg"
+			arch="$(get_pkgvar arch)"
+			subpkgs="$pkg:_:$arch $(get_pkgvar subpackages)"
+			for subpkg in $subpkgs
+			do
+				name="$(echo "$subpkg" | cut -d':' -f1)"
+				upload_pkg "$repo" "$name"
+			done
+		)
+	done
+	for repo in $repos
+	do
+		update_index $repo
+	done
+)
+
+if [ $# -lt 1 ]
+then
+	usage
+	exit 1
+fi
+cmd="$1"
+shift
+
+case "$cmd" in
+	add-repo)
+		add_repo "$@"
+		;;
+	build)
+		build "$@"
+		;;
+	pkgver)
+		print_pkgver "$@"
+		;;
+	upload)
+		upload "$@"
+		;;
+	help|-h)
+		usage
+		;;
+esac