php7-base/docker-php-source at master · ulabs-org/php7-base · GitHub

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#!/bin/sh
set -e

dir=/usr/src/php

usage() {
	echo "usage: $0 COMMAND"
	echo
	echo "Manage php source tarball lifecycle."
	echo
	echo "Commands:"
	echo "   cleanup  delete php source tarball and extracted php source."
	echo "   download download php source tarball if not already done."
	echo "   extract  extract php source tarball into directory $dir if not already done."
	echo "   delete   delete extracted php source located into $dir if not already done."
	echo
}

get_source() {
	set -xe; \
	\
	apk add --no-cache --virtual .fetch-deps \
		gnupg \
		libressl \
	; \
	\
	mkdir -p /usr/src; \
	cd /usr/src; \
	\
	wget -O php.tar.xz "$PHP_URL"; \
	\
	if [ -n "$PHP_SHA256" ]; then \
		echo "$PHP_SHA256 *php.tar.xz" | sha256sum -c -; \
	fi; \
	if [ -n "$PHP_MD5" ]; then \
		echo "$PHP_MD5 *php.tar.xz" | md5sum -c -; \
	fi; \
	\
	if [ -n "$PHP_ASC_URL" ]; then \
		wget -O php.tar.xz.asc "$PHP_ASC_URL"; \
		export GNUPGHOME="$(mktemp -d)"; \
		for key in $GPG_KEYS; do \
			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
		done; \
		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
		rm -rf "$GNUPGHOME"; \
	fi; \
	\
	apk del .fetch-deps
}

case "$1" in
	download)
		mkdir -p "$dir"
		if [ ! -f "/usr/src/php.tar.xz" ]; then
			get_source
		fi
		exit 1
		;;

	cleanup)
		if [ -f "/usr/src/php.tar.xz" ]; then
			rm /usr/src/php.tar.xz
		fi
		rm -rf "$dir"
		;;

	extract)
		mkdir -p "$dir"
		if [ ! -f "/usr/src/php.tar.xz" ]; then
			get_source
		fi
		if [ ! -f "$dir/.docker-extracted" ]; then
			tar -Jxf /usr/src/php.tar.xz -C "$dir" --strip-components=1
			touch "$dir/.docker-extracted"
		fi
		;;

	delete)
		rm -rf "$dir"
		;;

	*)
		usage
		exit 1
		;;
esac