build

#!/bin/bash
# This script builds the container.
# It adds a fingerprint and revision automatically.
# You can pass extra arguments to the script to pass them to the docker build.
# You can also:
#   * prefix the generated tag by setting PREFIX
#   * auto prefix via rpm version by setting:
#     * AUTO_PREFIX="rpm-version-release" and AUTO_PREFIX_PACKAGE=<rpmname>
#   * auto prefix via apk version by setting:
#     * AUTO_PREFIX="apk-version-release" and AUTO_PREFIX_PACKAGE=<apkname>
#   * modify the autogenerated prefix by adding a bash snippet to to the
#     variable AUTO_PREFIX_FILTER
#   * NEW_BUILD=<anything> will force a new build reguardless of fingerprints.
#       Used for bottstrapping.
# It needs the following variables set:
#   * IMAGE_NAME - the full image name for the latest build.
#   * DOCKER_TAG - the tag the latest build will get.
#   * DOCKER_REPO - the repo the builds will go into.
# If SUBBUILD is in the environment, it will be passed to the docker build as
# an arg

set -e

echo "Build hook running"
if [ "x$SUBBUILD" != "x" ]; then
	if [ "x$GPGKEY" != "x" ]; then
		docker build --build-arg "SUBBUILD=$SUBBUILD" --no-cache --progress=plain --secret "id=gpg,src=$GPGKEY" -t tmp$$:1 . "$@"
	else
		docker build --build-arg "SUBBUILD=$SUBBUILD" -t tmp$$:1 . "$@"
	fi
else
	if [ "x$GPGKEY" != "x" ]; then
		docker build --no-cache --progress=plain --secret "id=gpg,src=$GPGKEY" -t tmp$$:1 . "$@"
	else
		docker build -t tmp$$:1 . "$@"
	fi
fi

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )/" && pwd )"
. $DIR/../common.sh

setupjq

if [ "x$PREFIX" == "x" ]; then
        if [ "x$AUTO_PREFIX" == "xrpm-version" ]; then
                PREFIX=$(docker run -i --rm --entrypoint='' tmp$$:1 rpm -q --queryformat '%{Version}' "$AUTO_PREFIX_PACKAGE")
        fi
        if [ "x$AUTO_PREFIX" == "xrpm-version-release" ]; then
                PREFIX=$(docker run -i --rm --entrypoint='' tmp$$:1 rpm -q --queryformat '%{Version}-%{Release}' "$AUTO_PREFIX_PACKAGE")
        fi
        if [ "x$AUTO_PREFIX" == "xpip-version" ]; then
                PREFIX=$(docker run -i --rm --entrypoint='' tmp$$:1 pip show "$AUTO_PREFIX_PACKAGE" 2>/dev/null | awk '{if($1 == "Version:"){print $2}}')
        fi
        if [ "x$AUTO_PREFIX" == "xapk-version" ]; then
                PREFIX=$(docker run -i --rm --entrypoint='' tmp$$:1 apk info "$AUTO_PREFIX_PACKAGE" 2>/dev/null | head -n 1 | awk '{print $1}')
                PREFIX=${PREFIX#"$AUTO_PREFIX_PACKAGE-"}
                PREFIX=$(echo "$PREFIX" | awk -F- '{print $1}')
        fi
        if [ "x$AUTO_PREFIX" == "xapk-version-release" ]; then
                PREFIX=$(docker run -i --rm --entrypoint='' tmp$$:1 apk info "$AUTO_PREFIX_PACKAGE" 2>/dev/null | head -n 1 | awk '{print $1}')
                PREFIX=${PREFIX#"$AUTO_PREFIX_PACKAGE-"}
        fi
        if [ "x$AUTO_PREFIX" == "xrpmrepo-version" ]; then
                setupxmlstarlet
		export tc="tmp$$:3"
		docker build --build-arg image="tmp$$:1" -t "$tc" -f "$DIR/../Dockerfile.fingerprinthelper" "$DIR/.."
		PRIMARY=$(docker run -i --rm "$tc" /bin/sh -c 'cat /data/repodata/repomd.xml' | xmlstarlet sel -t -v '/_:repomd/_:data[@type="primary"]/_:location/@href')
                PREFIX=$(docker run -i --rm "$tc" /bin/sh -c "cat /data/$PRIMARY" | zcat -f | xmlstarlet sel -t -m '/_:metadata/_:package[_:name="'"$AUTO_PREFIX_PACKAGE"'"]'  -m '_:version' -v '@ver' -n)
		docker rmi "$tc"
        fi
        if [ "x$AUTO_PREFIX" == "xrpmrepo-version-release" ]; then
                setupxmlstarlet
		export tc="tmp$$:3"
		docker build --build-arg image="tmp$$:1" -t "$tc" -f "$DIR/../Dockerfile.fingerprinthelper" "$DIR/.."
		PRIMARY=$(docker run -i --rm "$tc" /bin/sh -c 'cat /data/repodata/repomd.xml' | xmlstarlet sel -t -v '/_:repomd/_:data[@type="primary"]/_:location/@href')
                PREFIX=$(docker run -i --rm "$tc" /bin/sh -c "cat /data/$PRIMARY" | zcat -f | xmlstarlet sel -t -m '/_:metadata/_:package[_:name="'"$AUTO_PREFIX_PACKAGE"'"]'  -m '_:version' -v '@ver' -o '-' -v '@rel' -n)
		docker rmi "$tc"
        fi
        if [ "x$AUTO_PREFIX" == "xfilecontent" ]; then
		export tc="tmp$$:3"
		docker build --build-arg image="tmp$$:1" -t "$tc" -f "$DIR/../Dockerfile.fingerprinthelper" "$DIR/.."
		PREFIX=$(docker run -i --rm "$tc" /bin/sh -c "cat $AUTO_PREFIX_FILE")
		docker rmi "$tc"
        fi
	if [ "x$AUTO_PREFIX_FILTER" != "x" ]; then
		PREFIX=$(echo "$PREFIX" | eval "$AUTO_PREFIX_FILTER")
        fi
	if [ "x$AUTO_PREFIX" != "x" -a "x$PREFIX" == "x" ]; then
		echo "Failed to generate prefix for an unknown reason."
		exit -1
	fi
fi

echo "PREFIX determined to be: $PREFIX"

echo "Adding fingerprint."
hubbuildtools/addfingerprint.sh tmp$$:1 tmp$$:2

# Fails if already uploaded to prevent a new version of the same contents
# from landing.
echo "Checking if this version already exists."
hubbuildtools/hubcompare.sh "$DOCKER_REPO" "$DOCKER_TAG" tmp$$:2

echo "Adding revision."
hubbuildtools/addrevision.sh tmp$$:2 "$DOCKER_REPO" "$DOCKER_TAG" "$IMAGE_NAME" "$PREFIX"

docker rmi tmp$$:1 tmp$$:2