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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 -eu
# source the configuration if available
if [ -f "/etc/dabuild.conf" ]; then
. /etc/dabuild.conf
fi
# set defaults
: "${DABUILD_DEBUG:=false}"
: "${DABUILD_ARCH:=$(uname -m)}"
: "${DABUILD_DOCKER:=docker}"
: "${DABUILD_VERSION=}"
: "${DABUILD_PACKAGES:=${PWD%/aports/*}/packages}}"
: "${DABUILD_APK_CACHE:=true}"
: "${DABUILD_CCACHE:=false}"
: "${DABUILD_DISTFILES:=false}"
: "${DABUILD_RM:=true}"
: "${DABUILD_ARGS=}"
# reset vars
DABUILD_ENV=
die () {
printf >&2 "%s\\n" "$@"
exit 1
}
## debug
if [ "$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: $PWD"
fi
case "$DABUILD_ARCH" in
x86|x86_64|aarch64|armhf|armv7);;
armv8l|arm) DABUILD_ARCH=armv7;;
*) die "Unsupported arch \"$DABUILD_ARCH\" detected." \
"Expected one of: x86|x86_64|aarch64|armhf|armv7" \
"You may force it setting DABUILD_ARCH=\"xxx\" in invocation";;
esac
## allow setting of `docker` command by env variable
case "$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 [ ! "$DABUILD_VERSION" ]; then
APORTS_BRANCH=$(git symbolic-ref --short -q HEAD)
case $APORTS_BRANCH in
*-stable) DABUILD_VERSION=${APORTS_BRANCH%-stable};;
*) DABUILD_VERSION=edge;;
esac
fi
# set packages dir based on alpine release
DABUILD_PACKAGES="$DABUILD_PACKAGES/$DABUILD_VERSION"
## setup volumes; use named volumes as cache if desired
ABUILD_VOLUMES="-v ${PWD%/aports/*}/aports:/home/builder/aports \
-v ${DABUILD_PACKAGES}:/home/builder/packages"
# pass over gitconfig for abuild-keygen
if [ -f "$HOME/.gitconfig" ]; then
ABUILD_VOLUMES="$ABUILD_VOLUMES \
-v $HOME/.gitconfig:/home/builder/.gitconfig"
fi
setup_named_volume() {
local name=$1 dest=$2 single="${3:-false}"
local volume="dabuild-$name-$DABUILD_VERSION-$DABUILD_ARCH"
[ "$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
# use a bind or named volume for distfiles.
case $DABUILD_DISTFILES in
*/*) ABUILD_VOLUMES="$ABUILD_VOLUMES \
-v $DABUILD_DISTFILES:/var/cache/distfiles";;
true) setup_named_volume distfiles "/var/cache/distfiles" true;;
*) ;;
esac
setup_named_volume config "/home/builder/.abuild" true
if [ "$DABUILD_RM" != "false" ]; then
DABUILD_ARGS="$DABUILD_ARGS --rm"
fi
## go!
$_DOCKER run --tty --interactive \
$ABUILD_VOLUMES \
$DABUILD_ENV \
$DABUILD_ARGS \
--workdir /home/builder/aports/"${PWD#*/aports/}" \
%%ABUILD_IMAGE%%:$DABUILD_VERSION-$DABUILD_ARCH "$@"
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