Add prepare-branch.sh

prepare-branch.sh

@@ -0,0 +1,152 @@
+#!/bin/sh -e
+
+set -e
+
+run_tests() {
+	local branch="$1"
+	local dir="$2"
+	local arch=$(uname -m)
+	local testimage="alpine:${branch#v}-test"
+	docker build -t "$testimage" "$dir/$arch/"
+	BRANCH="$branch" bats ./tests/common.bats
+	docker rmi "$testimage"
+}
+
+prepare() {
+	local branch="$1"
+	local dir=$(mktemp -d /tmp/docker-brew-alpine-XXXXXX)
+	docker build -t docker-brew-alpine-fetch .
+	docker run \
+		${MIRROR+ -e "MIRROR=$MIRROR"} \
+		--user $(id -u) --rm \
+		-v $dir:/out \
+		docker-brew-alpine-fetch $branch /out
+	echo "=> Verifying checksums"
+	( cd $dir && sha512sum -c checksums.sha512)
+	echo "=> temp dir: $dir"
+	run_tests "$branch" "$dir"
+	echo "=> To create git branch run:"
+	echo ""
+	echo "  $0 branch $branch $dir"
+	echo ""
+	TMPDIR="$dir"
+}
+
+
+branch() {
+	local branch="$1"
+	local dir="$2"
+	local version=$(cat $dir/VERSION)
+	if [ -z "$dir" ]; then
+		help
+		exit 1
+	fi
+	echo "=> Creating branch for release $version from $dir"
+
+	if [ -n "$(git status --porcelain)" ]; then
+		echo "=> git status is not clean. Aborting"
+		git status --porcelain
+		exit 1
+	fi
+
+	git checkout master
+	git branch -D "$branch" || true
+	git checkout --orphan "$branch"
+	git rm --cached -r .
+	rm -fr ./* .dockerignore
+	mv "$dir"/* .
+	rmdir "$dir"
+	git add *
+	git commit -m "Update Alpine $branch - $version"
+
+	echo "=> Branch created:"
+	echo ""
+	echo "=> To upload release do: git push -f origin $branch"
+	library "$branch"
+	echo ""
+	echo "=> After 'git push -f origin $branch', add the above to:"
+	echo "=> https://github.com/docker-library/official-images/blob/master/library/alpine"
+	git checkout master
+}
+
+library_arch() {
+	case "$1" in
+	armhf) echo "arm32v6";;
+	armv7) echo "arm32v7";;
+	aarch64) echo "arm64v8";;
+	ppc64le) echo "ppc64le";;
+	riscv64) echo "riscv64";;
+	s390x) echo "s390x";;
+	x86) echo "i386";;
+	x86_64) echo "amd64";;
+	*) echo "Unknown architecture: $1" >&2; exit 1;;
+	esac
+}
+
+library() {
+	local branch="$1"
+	local gitbranch=$(git rev-parse --abbrev-ref HEAD)
+	if [ "$gitbranch" != "$branch" ]; then
+		git checkout --quiet "$branch"
+	fi
+
+	local arches= dirs=
+	local version=$(cat VERSION)
+
+	for file in */Dockerfile; do
+		local a=${file%/Dockerfile}
+		arches="${arches}${arches:+, }$(library_arch $a)"
+		dirs="$dirs $a"
+	done
+	cat <<-EOF
+
+		Tags: $version, ${branch#v}
+		Architectures: $arches
+		GitFetch: refs/heads/$branch
+		GitCommit: $(git rev-parse HEAD)
+	EOF
+	for dir in $dirs; do
+		echo "$(library_arch $dir)-Directory: $dir/"
+	done
+
+	if [ "$gitbranch" != "$branch" ]; then
+		git checkout --quiet "$gitbranch"
+	fi
+}
+
+help() {
+	cat <<EOF
+Usage: $0 COMMAND [OPTS]
+
+Commands:
+
+ prepare [BRANCH]   - fetch release latest minirootfs to a temp directory and
+                      create Dockerfiles
+
+ test BRANCH DIR    - run tests
+
+ branch BRANCH DIR  - update git branch with previously prepared temp
+                      directory
+
+ library BRANCH     - Print metadata for:
+                      https://github.com/docker-library/official-images
+EOF
+}
+
+cmd=$1
+shift
+
+branch=${1:-edge}
+dir="$2"
+
+case "$cmd" in
+	prepare) prepare "$branch";;
+	test)    run_tests "$branch" "$dir";;
+	branch)  branch "$branch" "$dir";;
+	library) library "$branch";;
+	all)
+		prepare "$branch"
+		branch "$branch" "$TMPDIR"
+		;;
+	*) help $0;;
+esac