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#!/bin/sh
# Copyright (C) 2019 Richard Mortier <mort@cantab.net>
# Licensed under the MIT License, https://opensource.org/licenses/MIT
set -e
die () {
printf >&2 "%s\n" "$@"
exit 1
}
# source the configuration if available
if [ -f "/etc/dabuild.conf" ]; then
. /etc/dabuild.conf
fi
## debug
if [ "$DABUILD_DEBUG" = "true" ]; then
set -x
PS4='$LINENO: '
DABUILD_ENV="$DABUILD_ENV -e DABUILD_DEBUG=true"
fi
## check running from within an `aports` tree
if [ "${PWD%*/aports/*}" = "$PWD" ]; then
die "Error: expecting to be run from within an aports tree!" \
"Could not find '/aports/' in the current path: $PWD"
exit 1
fi
## allow setting of arch by env variable
if [ "$DABUILD_ARCH" ]; then
ALPINE_ARCH=$DABUILD_ARCH
else
ALPINE_ARCH=$(uname -m)
fi
case "$ALPINE_ARCH" in
x86|x86_64|aarch64|armhf|armv7);;
armv8l|arm) ALPINE_ARCH=armv7;;
* ) die "Unsupported arch \"$DABUILD_ARCH\" detected." \
"Expected one of: x86|x86_64|aarch64|armhf|armv7" \
"You may force it setting DABUILD_ARCH=\"xxx\" in invocation";;
esac
## allow setting of `docker` command by env variable
[ ! "$DABUILD_DOCKER" ] && DABUILD_DOCKER=docker
case "$DABUILD_DOCKER" in
podman|docker ) ;;
* ) die "Unsupported docker CLI replacement \"$DABUILD_DOCKER\" detected." \
"Expected one of: docker|podman"
;;
esac
_DOCKER=$DABUILD_DOCKER
## use branch to figure out most appropriate alpine version
if [ "$DABUILD_VERSION" ]; then
ALPINE_RELEASE=$DABUILD_VERSION
else
APORTS_BRANCH=$(git status | head -1)
APORTS_BRANCH="${APORTS_BRANCH##*[ /]}"
case $APORTS_BRANCH in
[[:digit:]].[[:digit:]]-stable)
ALPINE_RELEASE=${APORTS_BRANCH%-stable};;
*) ALPINE_RELEASE=edge;;
esac
fi
## check $DABUILD_PACKAGES is a writable directory
ABUILD_PACKAGES=${DABUILD_PACKAGES:-${PWD%/aports/*}/packages/${ALPINE_RELEASE}}
mkdir -p $ABUILD_PACKAGES
if [ ! \( -d "$ABUILD_PACKAGES" -a -w "$ABUILD_PACKAGES" \) ]; then
die "Error: invalid or unwritable packages directory specified!" \
"ABUILD_PACKAGES = '$ABUILD_PACKAGES'" \
"DABUILD_PACKAGES = '$DABUILD_PACKAGES'"
fi
## setup volumes; use named volumes as cache if desired
ABUILD_VOLUMES="-v ${PWD%/aports/*}/aports:/home/builder/aports \
-v ${ABUILD_PACKAGES}:/home/builder/packages"
if [ -f "/etc/abuild.conf" ]; then
ABUILD_VOLUMES="$ABUILD_VOLUMES -v /etc/abuild.conf:/etc/abuild.conf:ro"
fi
if [ -w "/var/cache/distfiles" ]; then
ABUILD_VOLUMES="$ABUILD_VOLUMES -v /var/cache/distfiles:/var/cache/distfiles"
fi
# pass over gitconfig for abuild-keygen
if [ -f "$HOME/.gitconfig" ]; then
ABUILD_VOLUMES="$ABUILD_VOLUMES -v $HOME/.gitconfig:/home/builder/.gitconfig"
fi
setup_named_volume() {
local name=$1 dest=$2 single=$3
local volume="dabuild-$name-$ALPINE_RELEASE-$ALPINE_ARCH"
[ "$single" = "true" ] && volume="dabuild-$name"
ABUILD_VOLUMES="$ABUILD_VOLUMES -v $volume:$dest"
}
if [ "$DABUILD_APK_CACHE" = "true" ]; then
setup_named_volume apkcache "/etc/apk/cache"
fi
if [ "$DABUILD_CCACHE" = "true" ]; then
setup_named_volume ccache "/home/builder/.ccache"
DABUILD_ENV="$DABUILD_ENV -e DABUILD_CCACHE=true"
fi
setup_named_volume config "/home/builder/.abuild" true
ABUILD_RM="--rm"
if [ "$DABUILD_RM" = "false" ]; then
ABUILD_RM=""
fi
## go!
$_DOCKER run --tty --interactive \
$ABUILD_RM \
$ABUILD_VOLUMES \
$DABUILD_ENV \
$DABUILD_ARGS \
--workdir /home/builder/aports/${PWD#*/aports/} \
%%ABUILD_IMAGE%%:$ALPINE_RELEASE-$ALPINE_ARCH "$@"
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