From b19c1882b7074482a0cd7e2782f4d42f2a1677d1 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Tue, 10 Dec 2019 08:55:09 +0100
Subject: [PATCH 01/12] Prepare for Alpine support

---
 .travis.yml                                   | 33 ++++++++++++-------
 README.md                                     | 10 +++---
 ...ew-extensions => travisci-test-extensions} | 28 ++++++++++------
 3 files changed, 46 insertions(+), 25 deletions(-)
 rename scripts/{travisci-test-new-extensions => travisci-test-extensions} (86%)

diff --git a/.travis.yml b/.travis.yml
index 8526d46..7adc463 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,22 +1,33 @@
 sudo: false
 
+notifications:
+  email: false
+
 branches:
   only:
-  - master
+    - master
 
 services:
   - docker
 
-env:
-  global:
-    - secure: "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"
+test-extensions-job-template: &test-extensions-job-template
+  stage: Test extensions
+  if: type = pull_request
+  script: ./scripts/travisci-test-extensions
 
-install:
-  - true
+jobs:
+  include:
+    - <<: *test-extensions-job-template
+      name: Test extensions on Alpine Linux
+      env: DOCKER_DISTRO=alpine
 
-script:
-  - if test "${TRAVIS_EVENT_TYPE:-}" = 'pull_request'; then ./scripts/travisci-test-new-extensions; fi
-  - if test "${TRAVIS_EVENT_TYPE:-}" = 'push' && test "${TRAVIS_BRANCH:-}" = 'master'; then ./scripts/travisci-update-readme; fi
+    - <<: *test-extensions-job-template
+      name: Test extensions on Debian Linux
+      env: DOCKER_DISTRO=debian
 
-notifications:
-  email: false
\ No newline at end of file
+    - stage: Update docs
+      name: Update README.md
+      if: branch = master AND type = push
+      env:
+        - secure: "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"
+      script: ./scripts/travisci-update-readme
diff --git a/README.md b/README.md
index aa38a97..58fc04f 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,7 @@
 
 This repository contains a script that can be used to easily install a PHP extension inside the [official PHP Docker images](https://hub.docker.com/_/php/).
 
-
-## Known limits
-
-Currently the script requires the Debian-based images (no Alpine).
+The script works both for Alpine and Debian Linux.
 
 
 ## Usage
@@ -157,3 +154,8 @@ Some extension has special requirements:
   
   Test: gd, zip
   ```
+
+
+## Do you want to really say thank you?
+
+You can offer me a [monthly coffee](https://github.com/sponsors/mlocati) or a [one-time coffee](https://paypal.me/mlocati) :wink:
diff --git a/scripts/travisci-test-new-extensions b/scripts/travisci-test-extensions
similarity index 86%
rename from scripts/travisci-test-new-extensions
rename to scripts/travisci-test-extensions
index 572ca57..bf48a99 100755
--- a/scripts/travisci-test-new-extensions
+++ b/scripts/travisci-test-extensions
@@ -26,20 +26,28 @@ fi
 #
 # Outputs:
 # the full docker image ID
-getExtensionImage () {
+getDockerImageName () {
 	case "${2}" in
 		*)
-			getExtensionImage_version="${2}"
+			getDockerImageName_version="${2}"
 			;;
 	esac
-	getExtensionImage_result="php:${getExtensionImage_version}-cli"
-	getExtensionImage_reqs="${TRAVIS_BUILD_DIR}/data/special-requirements"
-	if test -f "${getExtensionImage_reqs}"; then
-		if test -n "$(cat "${getExtensionImage_reqs}" | grep -E "^${1}[ \t]+zts[ \t]*$")"; then
-			getExtensionImage_result="php:${getExtensionImage_version}-zts"
+	getDockerImageName_suffix='-cli'
+	getDockerImageName_reqs="${TRAVIS_BUILD_DIR}/data/special-requirements"
+	if test -f "${getDockerImageName_reqs}"; then
+		if test -n "$(cat "${getDockerImageName_reqs}" | grep -E "^${1}[ \t]+zts[ \t]*$")"; then
+			getDockerImageName_suffix="-zts"
 		fi
 	fi
-	printf '%s' "${getExtensionImage_result}"
+	case "${DOCKER_DISTRO:-}" in
+		alpine)
+			getDockerImageName_distro="-$DOCKER_DISTRO"
+			;;
+		*)
+			getDockerImageName_distro=''
+			;;
+	esac
+	printf 'php:%s%s%s' "${getDockerImageName_version}" "${getDockerImageName_suffix}" "${getDockerImageName_distro}"
 }
 
 
@@ -58,10 +66,10 @@ testExtension () {
 		printf '  INVALID PHP VERSION: %s\n' "${2}" >&2
 		return 1
 	fi
-	testExtension_Image="$(getExtensionImage "${1}" "${2}")"
+	testExtension_Image="$(getDockerImageName "${1}" "${2}")"
 	printf ' - Docker image: %s\n' "${testExtension_Image}"
 	testExtension_out=`mktemp`
-	if $(docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" bash -c "./install-php-extensions '${1}' && php ./scripts/check-installed-extension.php '${1}'" >"${testExtension_out}" 2>&1); then
+	if $(docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" sh -c "./install-php-extensions --cleanup '${1}' && php ./scripts/check-installed-extension.php '${1}'" >"${testExtension_out}" 2>&1); then
 		rm -rf "${testExtension_out}"
 		printf ' - Passed\n'
 		return 0

From f164c691cdafd0b10242a4bb251ed6b96e59f2d8 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Tue, 10 Dec 2019 09:06:30 +0100
Subject: [PATCH 02/12] Continue implementing Alpine support

Test: amqp, apcu, bcmath, bz2, calendar, cmark, dba, enchant, exif, gd, gettext, gmp, igbinary, imagick, imap
---
 README.md                        |   6 +-
 install-php-extensions           | 682 +++++++++++++++++++------------
 scripts/travisci-test-extensions |   2 +-
 3 files changed, 420 insertions(+), 270 deletions(-)

diff --git a/README.md b/README.md
index 58fc04f..764491a 100644
--- a/README.md
+++ b/README.md
@@ -30,11 +30,7 @@ COPY --from=mlocati/php-extension-installer /usr/bin/install-php-extensions /usr
 RUN install-php-extensions gd xdebug
 ```
 
-`install-php-extensions` will install all the required APT packages.  
-If you want to remove the APT development packages (which shouldn't be needed after the PHP extensions have been installed) and other no longer required packages, you can use the `--cleanup` option (**EXPERIMENTAL**):
-```
-install-php-extensions --cleanup gd xdebug
-```
+`install-php-extensions` will install all the required APT/APK packages; at the end of the script execution, the no-more needed packages will be removed.
 
 ## Supported PHP extensions
 
diff --git a/install-php-extensions b/install-php-extensions
index dd0801f..4dec79a 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -18,6 +18,29 @@ resetIFS () {
 '
 }
 
+# Get the distribution name
+#
+# Output:
+#   alpine|debian
+getDistro () {
+	getDistro_os_id=''
+	if test -r /etc/os-release; then
+		getDistro_os_id="$(cat /etc/os-release | grep -E ^ID= | cut -d = -f 2)"
+		case "$getDistro_os_id" in
+			alpine|debian)
+				;;
+			*)
+				getDistro_os_id=''
+				;;
+		esac
+	fi
+	if test -n "$getDistro_os_id"; then
+		printf '%s' "$getDistro_os_id"
+	else
+		printf '%s' 'debian'
+	fi
+}
+
 # Get the PHP Major-Minor version as an integer value, in format MMmm (example: 506 for PHP 5.6.15)
 #
 # Output:
@@ -36,33 +59,33 @@ getPHPInstalledModules () {
 '
 	for getPHPInstalledModules_module in $(php -m); do
 		getPHPInstalledModules_moduleNormalized=''
-		case "${getPHPInstalledModules_module}" in
+		case "$getPHPInstalledModules_module" in
 			\[PHP\ Modules\])
 				;;
 			\[Zend\ Modules\])
 				break
 				;;
 			Core|PDO|PDO_*|Phar|Reflection|SimpleXML|SPL|SQLite|Xdebug)
-				getPHPInstalledModules_moduleNormalized=$(LC_CTYPE=C printf '%s' "${getPHPInstalledModules_module}" | tr '[:upper:]' '[:lower:]')
+				getPHPInstalledModules_moduleNormalized=$(LC_CTYPE=C printf '%s' "$getPHPInstalledModules_module" | tr '[:upper:]' '[:lower:]')
 				;;
 			Zend\ OPcache)
 				getPHPInstalledModules_moduleNormalized='opcache'
 				;;
 			*\ *|*A*|*B*|*C*|*D*|*E*|*F*|*G*|*H*|*I*|*J*|*K*|*L*|*M*|*N*|*O*|*P*|*Q*|*R*|*S*|*T*|*U*|*V*|*W*|*X*|*Y*|*Z*)
-				printf '### WARNING Unrecognized module name: %s ###\n' "${getPHPInstalledModules_module}" >&2
+				printf '### WARNING Unrecognized module name: %s ###\n' "$getPHPInstalledModules_module" >&2
 				;;
 			*)
-				getPHPInstalledModules_moduleNormalized="${getPHPInstalledModules_module}"
+				getPHPInstalledModules_moduleNormalized="$getPHPInstalledModules_module"
 				;;
 		esac
-		if test -n "${getPHPInstalledModules_moduleNormalized}"; then
-			if ! stringInList "${getPHPInstalledModules_moduleNormalized}" "${getPHPInstalledModules_result}"; then
-				getPHPInstalledModules_result="${getPHPInstalledModules_result} ${getPHPInstalledModules_moduleNormalized}"
+		if test -n "$getPHPInstalledModules_moduleNormalized"; then
+			if ! stringInList "$getPHPInstalledModules_moduleNormalized" "$getPHPInstalledModules_result"; then
+				getPHPInstalledModules_result="$getPHPInstalledModules_result $getPHPInstalledModules_moduleNormalized"
 			fi
 		fi
 	done
 	resetIFS
-	printf '%s' "${getPHPInstalledModules_result}"
+	printf '%s' "${getPHPInstalledModules_result# }"
 }
 
 # Get the handles of the modules to be installed
@@ -71,48 +94,47 @@ getPHPInstalledModules () {
 #   $@: all module handles
 #
 # Set:
-#   DO_APT_REMOVE
 #   PHP_MODULES_TO_INSTALL
 #
 # Output:
 #   Nothing
-getModulesToInstall () {
-	getModulesToInstall_alreadyInstalled="$(getPHPInstalledModules)"
-	getModulesToInstall_endArgs=''
-	DO_APT_REMOVE=''
+processCommandArguments () {
+	processCommandArguments_alreadyInstalled="$(getPHPInstalledModules)"
+	processCommandArguments_endArgs=0
 	PHP_MODULES_TO_INSTALL=''
 	while :; do
 		if test $# -lt 1; then
 			break
 		fi
-		getModulesToInstall_skip=''
-		if test -z "${getModulesToInstall_endArgs}"; then
-			case "${1}" in
+		processCommandArguments_skip=0
+		if test $processCommandArguments_endArgs -eq 0; then
+			case "$1" in
 				--cleanup)
-					getModulesToInstall_skip='y'
-					DO_APT_REMOVE='y'
+					printf '### WARNING the --cleanup option is deprecated (we always cleanup everything) ###\n' "$1" >&2
+					processCommandArguments_skip=1
 					;;
 				--)
-					getModulesToInstall_skip='y'
-					getModulesToInstall_endArgs='y'
+					processCommandArguments_skip=1
+					processCommandArguments_endArgs=1
 					;;
 				-*)
-					printf 'Unrecognized option: %s\n' "${1}" >&2
+					printf 'Unrecognized option: %s\n' "$1" >&2
 					exit 1
 					;;
 			esac
 		fi
-		if test -z "${getModulesToInstall_skip}"; then
-			if stringInList "${1}" "${PHP_MODULES_TO_INSTALL}"; then
-				printf '### WARNING Duplicated module name specified: %s ###\n' "${1}" >&2
-			elif stringInList "${1}" "${getModulesToInstall_alreadyInstalled}"; then
-				printf '### WARNING Module already installed: %s ###\n' "${1}" >&2
+		if test $processCommandArguments_skip -eq 0; then
+			if stringInList "$1" "$PHP_MODULES_TO_INSTALL"; then
+				printf '### WARNING Duplicated module name specified: %s ###\n' "$1" >&2
+			elif stringInList "$1" "$processCommandArguments_alreadyInstalled"; then
+				printf '### WARNING Module already installed: %s ###\n' "$1" >&2
 			else
-				PHP_MODULES_TO_INSTALL="${PHP_MODULES_TO_INSTALL} ${1}"
+				PHP_MODULES_TO_INSTALL="$PHP_MODULES_TO_INSTALL $1"
 			fi
 		fi
 		shift
 	done
+	PHP_MODULES_TO_INSTALL="${PHP_MODULES_TO_INSTALL# }"
 }
 
 # Sort the modules to be installed, in order to fix dependencies
@@ -123,16 +145,16 @@ getModulesToInstall () {
 # Output:
 #   Nothing
 sortModulesToInstall () {
-	if stringInList 'igbinary' "${PHP_MODULES_TO_INSTALL}"; then
-		PHP_MODULES_TO_INSTALL="$(removeStringFromList 'igbinary' "${PHP_MODULES_TO_INSTALL}")"
+	if stringInList 'igbinary' "$PHP_MODULES_TO_INSTALL"; then
+		PHP_MODULES_TO_INSTALL="$(removeStringFromList 'igbinary' "$PHP_MODULES_TO_INSTALL")"
 		if test -z "$PHP_MODULES_TO_INSTALL"; then
 			PHP_MODULES_TO_INSTALL='igbinary'
 		else
 			PHP_MODULES_TO_INSTALL="igbinary $PHP_MODULES_TO_INSTALL"
 		fi
 	fi
-	if stringInList 'msgpack' "${PHP_MODULES_TO_INSTALL}"; then
-		PHP_MODULES_TO_INSTALL="$(removeStringFromList 'msgpack' "${PHP_MODULES_TO_INSTALL}")"
+	if stringInList 'msgpack' "$PHP_MODULES_TO_INSTALL"; then
+		PHP_MODULES_TO_INSTALL="$(removeStringFromList 'msgpack' "$PHP_MODULES_TO_INSTALL")"
 		if test -z "$PHP_MODULES_TO_INSTALL"; then
 			PHP_MODULES_TO_INSTALL='msgpack'
 		else
@@ -141,175 +163,295 @@ sortModulesToInstall () {
 	fi
 }
 
-# Get the required APT packages for a specific PHP version and for the list of module handles
+# Get the required APT/APK packages for a specific PHP version and for the list of module handles
 #
 # Arguments:
 #   $1: the numeric PHP Major-Minor version
 #   $@: the PHP module handles
 #
-# Output:
-#   Space-separated list of APT packages
-getRequiredAptPackages () {
-	getRequiredAptPackages_result=''
-	getRequiredAptPackages_phpv=${1}
+# Set:
+#   PACKAGES_PERSISTENT
+#   PACKAGES_VOLATILE
+#
+# Return:
+#   0 (true): if we to install some package
+#   1 (false): if no package is required
+buildRequiredPackageLists () {
+	buildRequiredPackageLists_persistent=''
+	buildRequiredPackageLists_volatile=''
+	buildRequiredPackageLists_distro="$(getDistro)"
+	buildRequiredPackageLists_phpv=$1
 	while :; do
 		if test $# -lt 2; then
 			break
 		fi
 		shift
-		case "${1}" in
-			amqp)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} librabbitmq-dev libssh-dev"
+		case "$1@$buildRequiredPackageLists_distro" in
+			amqp@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent rabbitmq-c"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS rabbitmq-c-dev"
 				;;
-			bz2)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libbz2-dev"
+			amqp@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent librabbitmq4"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile librabbitmq-dev libssh-dev"
 				;;
-			cmark)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} cmake"
+			apcu@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile autoconf g++ make"
 				;;
-			enchant)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libenchant-dev"
+			bz2@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libbz2"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile bzip2-dev"
 				;;
-			gd)
-				if test $getRequiredAptPackages_phpv -lt 700; then
-					getRequiredAptPackages_result="${getRequiredAptPackages_result} libvpx-dev libjpeg62-turbo-dev libpng-dev libxpm-dev libfreetype6-dev"
+			bz2@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libbz2-dev"
+				;;
+			cmark@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake make g++ autoconf"
+				;;
+			cmark@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake"
+				;;
+			enchant@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent enchant"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile enchant-dev"
+				;;
+			enchant@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libenchant1c2a"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libenchant-dev"
+				;;
+			gd@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent freetype libjpeg-turbo libpng libxpm"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetype-dev libjpeg-turbo-dev libpng-dev libxpm-dev"
+				if test $buildRequiredPackageLists_phpv -le 506; then
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libvpx"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libvpx-dev"
 				else
-					getRequiredAptPackages_result="${getRequiredAptPackages_result} libwebp-dev libjpeg62-turbo-dev libpng-dev libxpm-dev libfreetype6-dev"
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libwebp"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libwebp-dev"
 				fi
 				;;
-			gmp)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libgmp-dev"
+			gd@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libfreetype6 libjpeg62-turbo libpng16-16 libxpm4"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libfreetype6-dev libjpeg62-turbo-dev libpng-dev libxpm-dev"
+				if test $buildRequiredPackageLists_phpv -le 506; then
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libvpx?"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libvpx-dev"
+				else
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libwebp6"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libwebp-dev"
+				fi
 				;;
-			imap)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libc-client-dev libkrb5-dev"
+			gettext@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libintl"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile gettext-dev"
 				;;
-			interbase)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} firebird-dev libib-util"
+			gmp@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent gmp"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile gmp-dev"
 				;;
-			imagick)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libmagickwand-dev"
+			gmp@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libgmp-dev"
 				;;
-			intl)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libicu-dev"
+			igbinary@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile autoconf g++ make"
 				;;
-			ldap)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libldap2-dev"
+			imagick@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent imagemagick"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile imagemagick-dev autoconf g++ make re2c"
 				;;
-			memcache)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} zlib1g-dev"
+			imagick@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmagickwand-6.q16-?"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmagickwand-dev"
 				;;
-			memcached)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libmemcached-dev zlib1g-dev"
+			imap@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent c-client"
+				if test -z "$(apk info | grep -E ^libssl)"; then
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libssl1.0"
+				fi
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile krb5-dev imap-dev openssl openssl-dev"
 				;;
-			mcrypt)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libmcrypt-dev"
+			imap@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libc-client2007e"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libc-client-dev libkrb5-dev"
 				;;
-			mssql)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} freetds-dev"
+
+			interbase@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile firebird-dev libib-util"
 				;;
-			odbc)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} unixodbc-dev"
+			intl@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libicu-dev"
 				;;
-			pdo_dblib)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} freetds-dev"
+			ldap@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libldap2-dev"
 				;;
-			pdo_firebird)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} firebird-dev libib-util"
+			memcache@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile zlib1g-dev"
 				;;
-			pdo_pgsql)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libpq-dev"
+			memcached@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmemcached-dev zlib1g-dev"
 				;;
-			pdo_odbc)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} unixodbc-dev"
+			mcrypt@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmcrypt-dev"
 				;;
-			pdo_sqlsrv)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} unixodbc-dev"
+			mssql@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
-			pgsql)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libpq-dev"
+			odbc@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
-			pspell)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libpspell-dev"
+			pdo_dblib@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
-			recode)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} librecode-dev"
+			pdo_firebird@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile firebird-dev libib-util"
 				;;
-			ssh2)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libssh2-1-dev"
+			pdo_pgsql@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpq-dev"
 				;;
-			snmp)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} snmp libsnmp-dev"
+			pdo_odbc@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
-			soap)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libxml2-dev"
+			pdo_sqlsrv@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
-			solr)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libcurl4-gnutls-dev libxml2-dev"
+			pgsql@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpq-dev"
 				;;
-			sqlsrv)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} unixodbc-dev"
+			pspell@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpspell-dev"
 				;;
-			sybase_ct)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} freetds-dev"
+			recode@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile librecode-dev"
 				;;
-			tidy)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libtidy-dev"
+			ssh2@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
 				;;
-			uuid)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} uuid-dev"
+			snmp@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile snmp libsnmp-dev"
 				;;
-			wddx)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libxml2-dev"
+			soap@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
-			xmlrpc)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libxml2-dev"
+			solr@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libcurl4-gnutls-dev libxml2-dev"
 				;;
-			xsl)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libxslt-dev"
+			sqlsrv@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
-			yaml)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} libyaml-dev"
+			sybase_ct@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
-			zip)
-				getRequiredAptPackages_result="${getRequiredAptPackages_result} cmake zlib1g-dev libbz2-dev libmbedtls-dev"
+			tidy@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libtidy-dev"
+				;;
+			uuid@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile uuid-dev"
+				;;
+			wddx@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
+			xmlrpc@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
+			xsl@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxslt-dev"
+				;;
+			yaml@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libyaml-dev"
+				;;
+			zip@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake zlib1g-dev libbz2-dev libmbedtls-dev"
 				;;
 		esac
 	done
-	printf '%s' "${getRequiredAptPackages_result}"
+	PACKAGES_PERSISTENT=''
+	PACKAGES_VOLATILE=''
+	if test -z "$buildRequiredPackageLists_persistent$buildRequiredPackageLists_volatile"; then
+		return 0
+	fi
+	case "$buildRequiredPackageLists_distro" in
+		alpine)
+			apk update
+			;;
+		debian)
+			DEBIAN_FRONTEND=noninteractive apt-get update
+			DEBIAN_FRONTEND=noninteractive apt-get autoremove --purge -y
+			;;
+	esac
+	if test -n "$buildRequiredPackageLists_persistent"; then
+		PACKAGES_PERSISTENT="$(expandPackagesToBeInstalled $buildRequiredPackageLists_persistent)"
+	fi
+	if test -n "$buildRequiredPackageLists_volatile"; then
+		resetIFS
+		for buildRequiredPackageLists_package in $(expandPackagesToBeInstalled $buildRequiredPackageLists_volatile); do
+			if ! stringInList "$buildRequiredPackageLists_package" "$PACKAGES_PERSISTENT"; then
+				PACKAGES_VOLATILE="$PACKAGES_VOLATILE $buildRequiredPackageLists_package"
+			fi
+		done
+		PACKAGES_VOLATILE="${PACKAGES_VOLATILE# }"
+	fi
 }
 
-# Get the newly installed APT packages that will be no more needed after the installation of PHP extensions
+# Get the full list of APT/APK packages that will be installed, given the required packages
 #
 # Arguments:
-#   $1: the list of APT packages that will be installed
+#   $1: the list of required APT/APK packages
 #
 # Output:
-#   Space-separated list of APT packages to be removed
-getAptPackagesToRemove () {
-	getAptPackagesToRemove_inNewPackages=''
-	getAptPackagesToRemove_result=''
-	IFS='
+#   Space-separated list of every APT/APK packages that will be installed
+expandPackagesToBeInstalled () {
+	expandPackagesToBeInstalled_result=''
+	case "$(getDistro)" in
+		alpine)
+			IFS='
 '
-	for getAptPackagesToRemove_aptLine in $(DEBIAN_FRONTEND=noninteractive apt-get install -sy $@); do
-		if test -z "${getAptPackagesToRemove_inNewPackages}"; then
-			if test "${getAptPackagesToRemove_aptLine}" = 'The following NEW packages will be installed:'; then
-				getAptPackagesToRemove_inNewPackages='y'
-				resetIFS
-			fi
-		elif test "${getAptPackagesToRemove_aptLine}" = "${getAptPackagesToRemove_aptLine# }"; then
-			getAptPackagesToRemove_inNewPackages=''
-		else
-			for getAptPackagesToRemove_newPackage in ${getAptPackagesToRemove_aptLine}; do
-				case "${getAptPackagesToRemove_newPackage}" in
-					*-dev|cmake|cmake-data)
-						getAptPackagesToRemove_result="${getAptPackagesToRemove_result} ${getAptPackagesToRemove_newPackage}"
-						;;
-				esac
+			for expandPackagesToBeInstalled_line in $(apk add --simulate $@); do
+				if test -n "$(printf '%s' "$expandPackagesToBeInstalled_line" | grep -E '^\([0-9]*/[0-9]*) Installing ')"; then
+					expandPackagesToBeInstalled_result="$expandPackagesToBeInstalled_result $(printf '%s' "$expandPackagesToBeInstalled_line" | cut -d ' ' -f 3)"
+				fi
 			done
-		fi
-	done
-	resetIFS
-	printf '%s' "${getAptPackagesToRemove_result}"
+			resetIFS
+			;;
+		debian)
+			expandPackagesToBeInstalled_inNewPackages=0
+			IFS='
+'
+			for expandPackagesToBeInstalled_line in $(DEBIAN_FRONTEND=noninteractive apt-get install -sy $@); do
+				if test $expandPackagesToBeInstalled_inNewPackages -eq 0; then
+					if test "$expandPackagesToBeInstalled_line" = 'The following NEW packages will be installed:'; then
+						expandPackagesToBeInstalled_inNewPackages=1
+					fi
+				elif test "$expandPackagesToBeInstalled_line" = "${expandPackagesToBeInstalled_line# }"; then
+					break
+				else
+					resetIFS
+					for expandPackagesToBeInstalled_newPackage in $expandPackagesToBeInstalled_line; do
+						expandPackagesToBeInstalled_result="$expandPackagesToBeInstalled_result $expandPackagesToBeInstalled_newPackage"
+					done
+					IFS='
+'
+				fi
+			done
+			resetIFS
+			;;
+	esac
+	printf '%s' "${expandPackagesToBeInstalled_result# }"
+}
+
+# Install the required APT/APK packages
+#
+# Arguments:
+#   $@: the list of APT/APK packages to be installed
+installRequiredPackages () {
+	printf '### INSTALLING REQUIRED PACKAGES ###\n'
+	case "$(getDistro)" in
+		alpine)
+			apk add $PACKAGES_PERSISTENT $PACKAGES_VOLATILE
+			;;
+		debian)
+			DEBIAN_FRONTEND=noninteractive apt-get install -y $PACKAGES_PERSISTENT $PACKAGES_VOLATILE
+			;;
+	esac
 }
 
 # Install a bundled PHP module given its handle
@@ -319,20 +461,20 @@ getAptPackagesToRemove () {
 #   $2: the handle of the PHP module
 #
 # Set:
-#   UNNEEDED_APT_PACKAGE_LINKS
+#   UNNEEDED_PACKAGE_LINKS
 #
 # Output:
 #   Nothing
 installBundledModule () {
-	printf '### INSTALLING BUNDLED MODULE %s ###\n' "${2}"
-	case "${2}" in
+	printf '### INSTALLING BUNDLED MODULE %s ###\n' "$2"
+	case "$2" in
 		gd)
 			if test $1 -le 506; then
-				docker-php-ext-configure gd --with-gd --with-vpx-dir --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir --enable-gd-native-ttf
+				docker-php-ext-configure gd --with-gd --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir --enable-gd-native-ttf --with-vpx-dir
 			elif test $1 -le 701; then
-				docker-php-ext-configure gd --with-gd --with-webp-dir --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir --enable-gd-native-ttf
+				docker-php-ext-configure gd --with-gd --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir --enable-gd-native-ttf --with-webp-dir
 			elif test $1 -le 703; then
-				docker-php-ext-configure gd --with-gd --with-webp-dir --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir
+				docker-php-ext-configure gd --with-gd --with-jpeg-dir --with-png-dir --with-zlib-dir --with-xpm-dir --with-freetype-dir --with-webp-dir
 			else
 				docker-php-ext-configure gd --enable-gd --with-webp --with-jpeg --with-xpm --with-freetype
 			fi
@@ -342,7 +484,7 @@ installBundledModule () {
 				506)
 					if ! test -f /usr/include/gmp.h; then
 						ln -s /usr/include/x86_64-linux-gnu/gmp.h /usr/include/gmp.h
-						UNNEEDED_APT_PACKAGE_LINKS="${UNNEEDED_APT_PACKAGE_LINKS} /usr/include/gmp.h"
+						UNNEEDED_PACKAGE_LINKS="$UNNEEDED_PACKAGE_LINKS /usr/include/gmp.h"
 					fi
 					;;
 			esac
@@ -358,7 +500,7 @@ installBundledModule () {
 				506|700|701|702|703|704)
 					if ! test -f /usr/lib/libsybdb.so; then
 						ln -s /usr/lib/x86_64-linux-gnu/libsybdb.so /usr/lib/libsybdb.so
-						UNNEEDED_APT_PACKAGE_LINKS="${UNNEEDED_APT_PACKAGE_LINKS} /usr/lib/libsybdb.so"
+						UNNEEDED_PACKAGE_LINKS="$UNNEEDED_PACKAGE_LINKS /usr/lib/libsybdb.so"
 					fi
 					;;
 			esac
@@ -395,7 +537,7 @@ installBundledModule () {
 			fi
 			;;
 	esac
-	docker-php-ext-install -j$(nproc) "${2}"
+	docker-php-ext-install -j$(nproc) "$2"
 }
 
 # Fetch a tar.gz file, extract it and returns the path of the extracted folder.
@@ -408,24 +550,24 @@ installBundledModule () {
 getPackageSource () {
 	mkdir -p /tmp/src
 	getPackageSource_tempFile=$(mktemp -p /tmp/src)
-	curl -L -s -S -o "${getPackageSource_tempFile}" "$1"
+	curl -L -s -S -o "$getPackageSource_tempFile" "$1"
 	getPackageSource_tempDir=$(mktemp -p /tmp/src -d)
-	cd "${getPackageSource_tempDir}"
-	tar -xzf "${getPackageSource_tempFile}"
+	cd "$getPackageSource_tempDir"
+	tar -xzf "$getPackageSource_tempFile"
 	cd - >/dev/null
-	unlink "${getPackageSource_tempFile}"
+	unlink "$getPackageSource_tempFile"
 	getPackageSource_outDir=''
-	for getPackageSource_i in $(ls "${getPackageSource_tempDir}"); do
-		if test -n "${getPackageSource_outDir}" || test -f "${getPackageSource_tempDir}/${getPackageSource_i}"; then
+	for getPackageSource_i in $(ls "$getPackageSource_tempDir"); do
+		if test -n "$getPackageSource_outDir" || test -f "$getPackageSource_tempDir/$getPackageSource_i"; then
 			getPackageSource_outDir=''
 			break
 		fi
-		getPackageSource_outDir="${getPackageSource_tempDir}/${getPackageSource_i}"
+		getPackageSource_outDir="$getPackageSource_tempDir/$getPackageSource_i"
 	done
-	if test -n "${getPackageSource_outDir}"; then
-		printf '%s' "${getPackageSource_outDir}"
+	if test -n "$getPackageSource_outDir"; then
+		printf '%s' "$getPackageSource_outDir"
 	else
-		printf '%s' "${getPackageSource_tempDir}"
+		printf '%s' "$getPackageSource_tempDir"
 	fi
 }
 
@@ -437,14 +579,14 @@ getPackageSource () {
 #   $3: the options of the configure command
 #   $4: the value of CFLAGS
 installModuleFromSource () {
-	printf '### INSTALLING MODULE %s FROM SOURCE CODE ###\n' "${1}"
-	installModuleFromSource_dir="$(getPackageSource "${2}")"
-	cd "${installModuleFromSource_dir}"
+	printf '### INSTALLING MODULE %s FROM SOURCE CODE ###\n' "$1"
+	installModuleFromSource_dir="$(getPackageSource "$2")"
+	cd "$installModuleFromSource_dir"
 	phpize
-	./configure ${3} CFLAGS="${4:-}"
+	./configure $3 CFLAGS="${4:-}"
 	make -j$(nproc) install
 	cd --
-	docker-php-ext-enable "${1}"
+	docker-php-ext-enable "$1"
 }
 
 # Install a PECL PHP module given its handle
@@ -453,18 +595,18 @@ installModuleFromSource () {
 #   $1: the numeric PHP Major-Minor version
 #   $2: the handle of the PHP module
 installPECLModule () {
-	printf '### INSTALLING PECL MODULE %s ###\n' "${2}"
-	installPECLModule_actual="${2}"
+	printf '### INSTALLING PECL MODULE %s ###\n' "$2"
+	installPECLModule_actual="$2"
 	installPECLModule_stdin='\n'
-	case "${2}" in
+	case "$2" in
 		apcu)
 			if test $1 -le 506; then
-				installPECLModule_actual="${2}-4.0.11"
+				installPECLModule_actual="$2-4.0.11"
 			fi
 			;;
 		memcached)
 			if test $1 -lt 700; then
-				installPECLModule_actual="${2}-2.2.0"
+				installPECLModule_actual="$2-2.2.0"
 				# --with-libmemcached-dir (default: no)      Set the path to libmemcached install prefix
 			else
 				installPECLModule_stdin=''
@@ -490,47 +632,47 @@ installPECLModule () {
 			;;
 		msgpack)
 			if test $1 -le 506; then
-				installPECLModule_actual="${2}-0.5.7"
+				installPECLModule_actual="$2-0.5.7"
 			fi
 			;;
 		parallel)
 			if test $1 -le 701; then
-				installPECLModule_actual="${2}-0.8.3"
+				installPECLModule_actual="$2-0.8.3"
 			fi
 			;;
 		pcov)
 			if test $1 -lt 701; then
-				installPECLModule_actual="${2}-0.9.0"
+				installPECLModule_actual="$2-0.9.0"
 			fi
 			;;
 		pdo_sqlsrv | sqlsrv)
 			# https://docs.microsoft.com/it-it/sql/connect/php/system-requirements-for-the-php-sql-driver?view=sql-server-2017
 			if test $1 -le 700; then
-				installPECLModule_actual="${2}-5.3.0"
+				installPECLModule_actual="$2-5.3.0"
 			elif test $1 -ge 704; then
-				installPECLModule_actual="${2}-5.7.0preview"
+				installPECLModule_actual="$2-5.7.0preview"
 			fi
 			;;
 		pthreads)
 			if test $1 -lt 700; then
-				installPECLModule_actual="${2}-2.0.10"
+				installPECLModule_actual="$2-2.0.10"
 			fi
 			;;
 		redis)
 			if test $1 -le 506; then
-				installPECLModule_actual="${2}-4.3.0"
+				installPECLModule_actual="$2-4.3.0"
 			fi
 			# enable-redis-igbinary? enable-redis-lzf?
 			php --ri igbinary >/dev/null 2>/dev/null && installPECLModule_stdin='yes\nyes\n' || installPECLModule_stdin='no\nyes\n'
 			;;
 		solr)
 			if test $1 -le 506; then
-				installPECLModule_actual="${2}-2.4.0"
+				installPECLModule_actual="$2-2.4.0"
 			fi
 			;;
 		ssh2)
 			if test $1 -le 506; then
-				installPECLModule_actual="${2}-0.13"
+				installPECLModule_actual="$2-0.13"
 			else
 				# see https://bugs.php.net/bug.php?id=78560
 				installPECLModule_actual='https://pecl.php.net/get/ssh2'
@@ -538,35 +680,35 @@ installPECLModule () {
 			;;
 		xdebug)
 			if test $1 -lt 501; then
-				installPECLModule_actual="${2}-2.0.5"
+				installPECLModule_actual="$2-2.0.5"
 			elif test $1 -lt 504; then
-				installPECLModule_actual="${2}-2.2.7"
+				installPECLModule_actual="$2-2.2.7"
 			elif test $1 -lt 505; then
-				installPECLModule_actual="${2}-2.4.1"
+				installPECLModule_actual="$2-2.4.1"
 			elif test $1 -lt 700; then
-				installPECLModule_actual="${2}-2.5.5"
+				installPECLModule_actual="$2-2.5.5"
 			elif test $1 -ge 704; then
-				installPECLModule_actual="${2}-2.8.0beta2"
+				installPECLModule_actual="$2-2.8.0beta2"
 			fi
 			;;
 		uopz)
 			if test $1 -lt 700; then
-				installPECLModule_actual="${2}-2.0.7"
+				installPECLModule_actual="$2-2.0.7"
 			elif test $1 -lt 701; then
-				installPECLModule_actual="${2}-5.0.2"
+				installPECLModule_actual="$2-5.0.2"
 			fi
 			;;
 		yaml)
 			if test $1 -lt 700; then
-				installPECLModule_actual="${2}-1.3.1"
+				installPECLModule_actual="$2-1.3.1"
 			fi
 			;;
 	esac
-	if test "${2}" != "${installPECLModule_actual}"; then
-		printf '  (installing version %s)\n' "${installPECLModule_actual}"
+	if test "$2" != "$installPECLModule_actual"; then
+		printf '  (installing version %s)\n' "$installPECLModule_actual"
 	fi
-	printf "${installPECLModule_stdin}" | pecl install "${installPECLModule_actual}" 
-	docker-php-ext-enable "${2}"
+	printf "$installPECLModule_stdin" | pecl install "$installPECLModule_actual"
+	docker-php-ext-enable "$2"
 }
 
 # Check if a string is in a list of space-separated string
@@ -579,8 +721,8 @@ installPECLModule () {
 #   0 (true): if the string is in the list
 #   1 (false): if the string is not in the list
 stringInList () {
-	for stringInList_listItem in ${2}; do
-		if test "${1}" = "${stringInList_listItem}"; then
+	for stringInList_listItem in $2; do
+		if test "$1" = "$stringInList_listItem"; then
 			return 0
 		fi
 	done
@@ -597,8 +739,8 @@ stringInList () {
 #   The list without the word
 removeStringFromList () {
 	removeStringFromList_result=''
-	for removeStringFromList_listItem in ${2}; do
-		if test "${1}" != "${removeStringFromList_listItem}"; then
+	for removeStringFromList_listItem in $2; do
+		if test "$1" != "$removeStringFromList_listItem"; then
 			if test -z "$removeStringFromList_result"; then
 				removeStringFromList_result="$removeStringFromList_listItem"
 			else
@@ -606,84 +748,96 @@ removeStringFromList () {
 			fi
 		fi
 	done
-	printf '%s' "${removeStringFromList_result}"
+	printf '%s' "$removeStringFromList_result"
+}
+
+# Cleanup everything at the end of the execution
+cleanup () {
+	cleanup_distro="$(getDistro)"
+	if test -n "$UNNEEDED_PACKAGE_LINKS"; then
+		printf '### REMOVING UNNEEDED PACKAGE LINKS ###\n'
+		for cleanup_link in $UNNEEDED_PACKAGE_LINKS; do
+			if test -L "$cleanup_link"; then
+				rm -f "$cleanup_link"
+			fi
+		done
+	fi
+	if test -n "$PACKAGES_VOLATILE"; then
+		printf '### REMOVING UNNEEDED PACKAGES ###\n'
+		case "$cleanup_distro" in
+			alpine)
+				apk del --purge $PACKAGES_VOLATILE
+				;;
+			debian)
+				DEBIAN_FRONTEND=noninteractive apt-get remove --purge -y $PACKAGES_VOLATILE
+				;;
+		esac
+	fi
+	case "$cleanup_distro" in
+		alpine)
+			rm -rf /var/cache/apk/*
+			;;
+		debian)
+			rm -rf /var/lib/apt/lists/*
+			;;
+	esac
+	docker-php-source delete
+	rm -rf /tmp/pear
+	rm -rf /tmp/src
 }
 
 resetIFS
 PHP_MAJMIN_VERSION=$(getPHPMajorMinor)
-case "${PHP_MAJMIN_VERSION}" in
+case "$PHP_MAJMIN_VERSION" in
 	506|700|701|702|703|704)
 		;;
 	*)
 		printf "### ERROR: Unsupported PHP version: %s.%s ###\n" $(( PHP_MAJMIN_VERSION / 100 )) $(( PHP_MAJMIN_VERSION % 100 ))
 esac
-UNNEEDED_APT_PACKAGES=''
-UNNEEDED_APT_PACKAGE_LINKS=''
-getModulesToInstall "$@"
-sortModulesToInstall
+UNNEEDED_PACKAGE_LINKS=''
+processCommandArguments "$@"
 
-if test -n "${PHP_MODULES_TO_INSTALL}"; then
-	REQUIRED_APT_PACKAGES=$(getRequiredAptPackages ${PHP_MAJMIN_VERSION} ${PHP_MODULES_TO_INSTALL})
-	if test -n "${REQUIRED_APT_PACKAGES}"; then
-		printf '### INSTALLING REQUIRED APT PACKAGES ###\n'
-		DEBIAN_FRONTEND=noninteractive apt-get update -y
-		if test -n "${DO_APT_REMOVE}"; then
-			UNNEEDED_APT_PACKAGES=$(getAptPackagesToRemove ${REQUIRED_APT_PACKAGES})
-		fi
-		DEBIAN_FRONTEND=noninteractive apt-get install -y ${REQUIRED_APT_PACKAGES}
-	fi
-	docker-php-source extract
-	BUNDLED_MODULES="$(find /usr/src/php/ext -mindepth 2 -maxdepth 2 -type f -name 'config.m4' | xargs -n1 dirname | xargs -n1 basename | xargs)"
-	for PHP_MODULE_TO_INSTALL in ${PHP_MODULES_TO_INSTALL}; do
-		if stringInList "${PHP_MODULE_TO_INSTALL}" "${BUNDLED_MODULES}"; then
-			installBundledModule ${PHP_MAJMIN_VERSION} "${PHP_MODULE_TO_INSTALL}"
-		else
-			MODULE_SOURCE=''
-			MODULE_SOURCE_CONFIGOPTIONS=''
-			MODULE_SOURCE_CFLAGS=''
-			case "${PHP_MODULE_TO_INSTALL}" in
-				cmark)
-					MODULE_SOURCE=https://github.com/krakjoe/cmark/archive/v1.0.0.tar.gz
-					cd "$(getPackageSource https://github.com/commonmark/cmark/archive/0.28.3.tar.gz)"
-					make install
-					cd -
-					MODULE_SOURCE_CONFIGOPTIONS=--with-cmark
-					;;
-				igbinary)
-					if test ${PHP_MAJMIN_VERSION} -lt 700; then
-						MODULE_SOURCE="https://github.com/igbinary/igbinary/archive/2.0.8.tar.gz"
-					else
-						MODULE_SOURCE="https://github.com/igbinary/igbinary/archive/3.0.1.tar.gz"
-					fi
-					MODULE_SOURCE_CONFIGOPTIONS=--enable-igbinary
-					MODULE_SOURCE_CFLAGS='-O2 -g'
-					;;
-			esac
-			if test -n "${MODULE_SOURCE}"; then
-				installModuleFromSource "${PHP_MODULE_TO_INSTALL}" "${MODULE_SOURCE}" "${MODULE_SOURCE_CONFIGOPTIONS}" "${MODULE_SOURCE_CFLAGS}"
-			else
-				installPECLModule ${PHP_MAJMIN_VERSION} "${PHP_MODULE_TO_INSTALL}"
-			fi
-		fi
-	done
-	if test -n "${DO_APT_REMOVE}"; then
-		printf '### REMOVING NO LONGER REQUIRED PACKAGES ###\n'
-		DEBIAN_FRONTEND=noninteractive apt autoremove -y
-	fi
-	if test -n "${UNNEEDED_APT_PACKAGES}"; then
-		printf '### REMOVING UNNEEDED APT PACKAGES ###\n'
-		if test -n "${UNNEEDED_APT_PACKAGE_LINKS}"; then
-			for unneededAptPackageLink in ${UNNEEDED_APT_PACKAGE_LINKS}; do
-				if test -L "${unneededAptPackageLink}"; then
-					rm -f "${unneededAptPackageLink}"
-				fi
-			done
-		fi
-		DEBIAN_FRONTEND=noninteractive apt-get remove --purge -y ${UNNEEDED_APT_PACKAGES}
-	fi
+if test -z "$PHP_MODULES_TO_INSTALL"; then
+	exit 0
 fi
 
-docker-php-source delete
-rm -rf /tmp/pear
-rm -rf /var/lib/apt/lists/*
-rm -rf /tmp/src
+sortModulesToInstall
+
+if buildRequiredPackageLists $PHP_MAJMIN_VERSION $PHP_MODULES_TO_INSTALL; then
+	installRequiredPackages
+fi
+docker-php-source extract
+BUNDLED_MODULES="$(find /usr/src/php/ext -mindepth 2 -maxdepth 2 -type f -name 'config.m4' | xargs -n1 dirname | xargs -n1 basename | xargs)"
+for PHP_MODULE_TO_INSTALL in $PHP_MODULES_TO_INSTALL; do
+	if stringInList "$PHP_MODULE_TO_INSTALL" "$BUNDLED_MODULES"; then
+		installBundledModule $PHP_MAJMIN_VERSION "$PHP_MODULE_TO_INSTALL"
+	else
+		MODULE_SOURCE=''
+		MODULE_SOURCE_CONFIGOPTIONS=''
+		MODULE_SOURCE_CFLAGS=''
+		case "$PHP_MODULE_TO_INSTALL" in
+			cmark)
+				MODULE_SOURCE=https://github.com/krakjoe/cmark/archive/v1.0.0.tar.gz
+				cd "$(getPackageSource https://github.com/commonmark/cmark/archive/0.28.3.tar.gz)"
+				make install
+				cd -
+				MODULE_SOURCE_CONFIGOPTIONS=--with-cmark
+				;;
+			igbinary)
+				if test $PHP_MAJMIN_VERSION -lt 700; then
+					MODULE_SOURCE="https://github.com/igbinary/igbinary/archive/2.0.8.tar.gz"
+				else
+					MODULE_SOURCE="https://github.com/igbinary/igbinary/archive/3.0.1.tar.gz"
+				fi
+				MODULE_SOURCE_CONFIGOPTIONS=--enable-igbinary
+				MODULE_SOURCE_CFLAGS='-O2 -g'
+				;;
+		esac
+		if test -n "$MODULE_SOURCE"; then
+			installModuleFromSource "$PHP_MODULE_TO_INSTALL" "$MODULE_SOURCE" "$MODULE_SOURCE_CONFIGOPTIONS" "$MODULE_SOURCE_CFLAGS"
+		else
+			installPECLModule $PHP_MAJMIN_VERSION "$PHP_MODULE_TO_INSTALL"
+		fi
+	fi
+done
+cleanup
diff --git a/scripts/travisci-test-extensions b/scripts/travisci-test-extensions
index bf48a99..ec76f36 100755
--- a/scripts/travisci-test-extensions
+++ b/scripts/travisci-test-extensions
@@ -69,7 +69,7 @@ testExtension () {
 	testExtension_Image="$(getDockerImageName "${1}" "${2}")"
 	printf ' - Docker image: %s\n' "${testExtension_Image}"
 	testExtension_out=`mktemp`
-	if $(docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" sh -c "./install-php-extensions --cleanup '${1}' && php ./scripts/check-installed-extension.php '${1}'" >"${testExtension_out}" 2>&1); then
+	if $(docker run --rm --volume "${TRAVIS_BUILD_DIR}:/app" --workdir /app "${testExtension_Image}" sh -c "./install-php-extensions '${1}' && php ./scripts/check-installed-extension.php '${1}'" >"${testExtension_out}" 2>&1); then
 		rm -rf "${testExtension_out}"
 		printf ' - Passed\n'
 		return 0

From ef8f9f622f6c49f9a5674ed3a26e97e2c9f1a2fb Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 11:40:13 +0100
Subject: [PATCH 03/12] Continue implementing Alpine support

Test: interbase
---
 install-php-extensions | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/install-php-extensions b/install-php-extensions
index 4dec79a..9b163df 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -196,7 +196,7 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile librabbitmq-dev libssh-dev"
 				;;
 			apcu@alpine)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile autoconf g++ make"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
 			bz2@alpine)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libbz2"
@@ -206,7 +206,7 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libbz2-dev"
 				;;
 			cmark@alpine)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake make g++ autoconf"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
 			cmark@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake"
@@ -253,11 +253,11 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libgmp-dev"
 				;;
 			igbinary@alpine)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile autoconf g++ make"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
 			imagick@alpine)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent imagemagick"
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile imagemagick-dev autoconf g++ make re2c"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS imagemagick-dev"
 				;;
 			imagick@debian)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmagickwand-6.q16-?"
@@ -274,8 +274,11 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libc-client2007e"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libc-client-dev libkrb5-dev"
 				;;
-
+			interbase@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS icu-dev ncurses-dev"
+				;;
 			interbase@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libfbclient2"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile firebird-dev libib-util"
 				;;
 			intl@debian)
@@ -492,6 +495,25 @@ installBundledModule () {
 		imap)
 			PHP_OPENSSL=yes docker-php-ext-configure imap --with-kerberos --with-imap-ssl
 			;;
+		interbase)
+			case "$(getDistro)" in
+				alpine)
+					if ! test -d /tmp/src/firebird; then
+						mv "$(getPackageSource https://github.com/FirebirdSQL/firebird/releases/download/R2_5_9/Firebird-2.5.9.27139-0.tar.bz2)" /tmp/src/firebird
+						cd /tmp/src/firebird
+						#Patch rwlock.h (this has been fixed in later release of firebird 3.x)
+						sed -i '194s/.*/#if 0/'  src/common/classes/rwlock.h
+						set +x
+						./configure --with-system-icu
+						make btyacc_binary gpre_boot libfbstatic libfbclient
+						cp gen/firebird/lib/libfbclient.so /usr/lib/
+						ln -s /usr/lib/libfbclient.so /usr/lib/libfbclient.so.2
+						cd -
+					fi
+					CFLAGS='-I/tmp/src/firebird/src/jrd -I/tmp/src/firebird/src/include -I/tmp/src/firebird/src/include/gen' docker-php-ext-configure $2
+					;;
+			esac
+			;;
 		ldap)
 			docker-php-ext-configure ldap --with-libdir=lib/$(gcc -dumpmachine)
 			;;
@@ -553,7 +575,7 @@ getPackageSource () {
 	curl -L -s -S -o "$getPackageSource_tempFile" "$1"
 	getPackageSource_tempDir=$(mktemp -p /tmp/src -d)
 	cd "$getPackageSource_tempDir"
-	tar -xzf "$getPackageSource_tempFile"
+	tar -xzf "$getPackageSource_tempFile" 2>/dev/null || tar -xf "$getPackageSource_tempFile" 
 	cd - >/dev/null
 	unlink "$getPackageSource_tempFile"
 	getPackageSource_outDir=''

From 3202a0f19373d15f4d4f10cb5c086ab6e1bdcfd9 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 12:29:48 +0100
Subject: [PATCH 04/12] Continue implementing Alpine support

Test: intl, ldap, mcrypt, memcache, memcached, msgpack, mysql, mysqli
---
 install-php-extensions | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/install-php-extensions b/install-php-extensions
index 9b163df..22b106f 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -281,20 +281,44 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libfbclient2"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile firebird-dev libib-util"
 				;;
+			intl@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent icu-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile icu-dev"
+				;;
 			intl@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libicu-dev"
 				;;
+			ldap@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libldap"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile openldap-dev"
+				;;
 			ldap@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libldap2-dev"
 				;;
+			mcrypt@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmcrypt"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmcrypt-dev"
+				;;
+			mcrypt@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmcrypt4"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmcrypt-dev"
+				;;
+			memcache@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS zlib-dev"
+				;;
 			memcache@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile zlib1g-dev"
 				;;
+			memcached@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmemcached-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS libmemcached-dev zlib-dev"
+				;;
 			memcached@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmemcachedutil2"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmemcached-dev zlib1g-dev"
 				;;
-			mcrypt@debian)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmcrypt-dev"
+			msgpack@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
 			mssql@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
@@ -505,7 +529,7 @@ installBundledModule () {
 						sed -i '194s/.*/#if 0/'  src/common/classes/rwlock.h
 						set +x
 						./configure --with-system-icu
-						make btyacc_binary gpre_boot libfbstatic libfbclient
+						make -j$(nproc) btyacc_binary gpre_boot libfbstatic libfbclient
 						cp gen/firebird/lib/libfbclient.so /usr/lib/
 						ln -s /usr/lib/libfbclient.so /usr/lib/libfbclient.so.2
 						cd -
@@ -550,7 +574,7 @@ installBundledModule () {
 			mkdir "$libZipSrc/build"
 			cd "$libZipSrc/build"
 			cmake ..
-			make install
+			make -j$(nproc) install
 			cd -
 			if test $1 -le 703; then
 				docker-php-ext-configure zip --with-libzip

From 5c41352402a6e230dee58bee2f66fb3e2592b444 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 12:57:53 +0100
Subject: [PATCH 05/12] Continue implementing Alpine support

Test: interbase, mcrypt, mssql, -STOP-
---
 README.md                        |  8 ++++++++
 data/supported-extensions        |  1 +
 install-php-extensions           | 10 +++++++---
 scripts/travisci-test-extensions | 12 ++++++++++--
 4 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 764491a..2d04c1a 100644
--- a/README.md
+++ b/README.md
@@ -150,6 +150,14 @@ Some extension has special requirements:
   
   Test: gd, zip
   ```
+  If your pull request contains multiple commits, we'll check the "Test:" message of every commit.
+  If you want to stop parsing next commits, add `-STOP-` in the "Test:" line, for example:
+  ```
+  Improve the GD and ZIP extensions
+  
+  Test: gd, zip, -STOP-
+  ```
+
 
 
 ## Do you want to really say thank you?
diff --git a/data/supported-extensions b/data/supported-extensions
index 301f230..8d24e12 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -20,6 +20,7 @@ mcrypt 5.6 7.0 7.1 7.2 7.3 7.4
 memcache 5.6
 memcached 5.6 7.0 7.1 7.2 7.3 7.4
 msgpack 5.6 7.0 7.1 7.2 7.3 7.4
+mssql 5.6
 mysql 5.6
 mysqli 5.6 7.0 7.1 7.2 7.3 7.4
 odbc 5.6 7.0 7.1 7.2 7.3 7.4
diff --git a/install-php-extensions b/install-php-extensions
index 22b106f..eac0799 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -296,7 +296,7 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libldap2-dev"
 				;;
 			mcrypt@alpine)
-				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libmcrypt"
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent $PHPIZE_DEPS libmcrypt"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmcrypt-dev"
 				;;
 			mcrypt@debian)
@@ -320,7 +320,12 @@ buildRequiredPackageLists () {
 			msgpack@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
+			mssql@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent freetds"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
+				;;
 			mssql@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libsybdb5"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
 			odbc@debian)
@@ -527,9 +532,8 @@ installBundledModule () {
 						cd /tmp/src/firebird
 						#Patch rwlock.h (this has been fixed in later release of firebird 3.x)
 						sed -i '194s/.*/#if 0/'  src/common/classes/rwlock.h
-						set +x
 						./configure --with-system-icu
-						make -j$(nproc) btyacc_binary gpre_boot libfbstatic libfbclient
+						make -s btyacc_binary gpre_boot libfbstatic libfbclient
 						cp gen/firebird/lib/libfbclient.so /usr/lib/
 						ln -s /usr/lib/libfbclient.so /usr/lib/libfbclient.so.2
 						cd -
diff --git a/scripts/travisci-test-extensions b/scripts/travisci-test-extensions
index ec76f36..38fc6ce 100755
--- a/scripts/travisci-test-extensions
+++ b/scripts/travisci-test-extensions
@@ -156,6 +156,9 @@ getAllPHPVersionsFor () {
 # Arguments:
 # $1: the commit hash
 #
+# Set:
+# STOP_NEXT_COMMITS to 1 if we should skip next commits
+#
 # Return:
 # 0 (true): if test passes
 # 1 (false): if test fails
@@ -186,7 +189,9 @@ testExtensionsFromMessage () {
 			if test -n "$TESTLIST"; then
 				IFS=' ,;'
 				for COMMIT_LINE_EXT in $TESTLIST; do
-					if test -z "$TEST_EXTENSIONS"; then
+					if test $COMMIT_LINE_EXT = '-STOP-'; then
+						STOP_NEXT_COMMITS=1
+					elif test -z "$TEST_EXTENSIONS"; then
 						TEST_EXTENSIONS=$COMMIT_LINE_EXT;
 					else
 						if ! stringInList "$COMMIT_LINE_EXT" "$TEST_EXTENSIONS"; then
@@ -210,7 +215,7 @@ testExtensionsFromMessage () {
 	return $testExtensionsFromMessage_result
 }
 
-
+STOP_NEXT_COMMITS=0
 TESTS_RESULTS=0
 ADDED_EXTENSION_LINE=
 FOUND_ATAT=
@@ -239,6 +244,9 @@ for COMMIT_HASH in $(git -C "${TRAVIS_BUILD_DIR}" log --pretty='format:%H' "${TR
 	if ! testExtensionsFromMessage "$COMMIT_HASH"; then
 		TESTS_RESULTS=1
 	fi
+	if test $STOP_NEXT_COMMITS -eq 1; then
+		break
+	fi
 done
 
 if test ${TESTS_RESULTS} -ne 0; then

From 46ac6f95240bd5700f3580de2f44115dee11a73b Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 13:57:45 +0100
Subject: [PATCH 06/12] Continue implementing Alpine support

Test: odbc, opcache, parallel, pcntl, pcov, -STOP-
---
 install-php-extensions | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/install-php-extensions b/install-php-extensions
index eac0799..0c04ff1 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -328,9 +328,20 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libsybdb5"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
+			odbc@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent unixodbc"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS unixodbc-dev"
+				;;
 			odbc@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libodbc1"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
+			parallel@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
+			pcov@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
 			pdo_dblib@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
@@ -533,6 +544,7 @@ installBundledModule () {
 						#Patch rwlock.h (this has been fixed in later release of firebird 3.x)
 						sed -i '194s/.*/#if 0/'  src/common/classes/rwlock.h
 						./configure --with-system-icu
+						# -j option can't be used: make targets must be compiled sequentially
 						make -s btyacc_binary gpre_boot libfbstatic libfbclient
 						cp gen/firebird/lib/libfbclient.so /usr/lib/
 						ln -s /usr/lib/libfbclient.so /usr/lib/libfbclient.so.2

From a1d379386069a562ab0557893d207d04cc7835ac Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 14:23:15 +0100
Subject: [PATCH 07/12] Continue implementing Alpine support

Test: pdo_dblib, pdo_firebird, pdo_mysql, pdo_odbc, pdo_pgsql, pdo_sqlsrv, -STOP-
---
 install-php-extensions | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/install-php-extensions b/install-php-extensions
index 0c04ff1..745bc4a 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -342,19 +342,43 @@ buildRequiredPackageLists () {
 			pcov@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
-			pdo_dblib@debian)
+			pdo_dblib@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent freetds"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
+			pdo_dblib@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libsybdb5"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
+				;;
+			pdo_firebird@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS icu-dev ncurses-dev"
+				;;
 			pdo_firebird@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libfbclient2"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile firebird-dev libib-util"
 				;;
-			pdo_pgsql@debian)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpq-dev"
+			pdo_odbc@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent unixodbc"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS unixodbc-dev"
 				;;
 			pdo_odbc@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libodbc1"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
+			pdo_pgsql@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent postgresql-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile postgresql-dev"
+				;;
+			pdo_pgsql@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libpq5"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpq-dev"
+				;;
+			pdo_sqlsrv@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libstdc++ unixodbc"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS unixodbc-dev"
+				;;
 			pdo_sqlsrv@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libodbc1 odbcinst"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
 			pgsql@debian)
@@ -535,7 +559,7 @@ installBundledModule () {
 		imap)
 			PHP_OPENSSL=yes docker-php-ext-configure imap --with-kerberos --with-imap-ssl
 			;;
-		interbase)
+		interbase|pdo_firebird)
 			case "$(getDistro)" in
 				alpine)
 					if ! test -d /tmp/src/firebird; then

From 6af10df812292f0eb6092260d691ba15274b099a Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 15:04:19 +0100
Subject: [PATCH 08/12] Continue implementing Alpine support

Test: pgsql, pspell, pthreads, recode, redis, shmop, -STOP-
---
 install-php-extensions | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/install-php-extensions b/install-php-extensions
index 745bc4a..2e18a8e 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -381,15 +381,36 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libodbc1 odbcinst"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
+			pgsql@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent postgresql-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile postgresql-dev"
+				;;
 			pgsql@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libpq5"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpq-dev"
 				;;
+			pspell@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent aspell-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile aspell-dev"
+				;;
 			pspell@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libaspell15"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libpspell-dev"
 				;;
+			pthreads@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
+			recode@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent recode"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile recode-dev"
+				;;
 			recode@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent librecode0"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile librecode-dev"
 				;;
+			redis@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
 			ssh2@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
 				;;

From 483e3162f35c885a2378621f73d71c308883d9af Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 15:38:27 +0100
Subject: [PATCH 09/12] Continue implementing Alpine support

Test: snmp, soap, sockets, solr, sqlsrv, ssh2, -STOP-
---
 install-php-extensions | 35 ++++++++++++++++++++++++++++++++---
 1 file changed, 32 insertions(+), 3 deletions(-)

diff --git a/install-php-extensions b/install-php-extensions
index 2e18a8e..c90729b 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -411,21 +411,43 @@ buildRequiredPackageLists () {
 			redis@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
-			ssh2@debian)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
+			snmp@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent net-snmp-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile net-snmp-dev"
 				;;
 			snmp@debian)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile snmp libsnmp-dev"
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent snmp"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libsnmp-dev"
+				;;
+			soap@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
 			soap@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
+			solr@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS curl-dev libxml2-dev"
+				;;
 			solr@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libcurl3-gnutls"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libcurl4-gnutls-dev libxml2-dev"
 				;;
+			sqlsrv@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libstdc++ unixodbc"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS unixodbc-dev"
+				;;
 			sqlsrv@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent unixodbc"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile unixodbc-dev"
 				;;
+			ssh2@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent $PHPIZE_DEPS libssh2"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS libssh2-dev"
+				;;
+			ssh2@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
+				;;
 			sybase_ct@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
@@ -627,6 +649,13 @@ installBundledModule () {
 		pdo_odbc)
 			docker-php-ext-configure pdo_odbc --with-pdo-odbc=unixODBC,/usr
 			;;
+		snmp)
+			case "$(getDistro)" in
+				alpine)
+					mkdir -p -m 0755 /var/lib/net-snmp/mib_indexes
+					;;
+			esac
+			;;
 		sybase_ct)
 			docker-php-ext-configure sybase_ct --with-sybase-ct=/usr
 			;;

From de6acd466764b8b9000574bba6bc6a1bc0dd6e03 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 15:58:47 +0100
Subject: [PATCH 10/12] Continue implementing Alpine support

Test: sybase_ct, sysvmsg, sysvsem, sysvshm, tidy, timezonedb, -STOP-
---
 install-php-extensions | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/install-php-extensions b/install-php-extensions
index c90729b..310d82f 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -448,12 +448,25 @@ buildRequiredPackageLists () {
 			ssh2@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libssh2-1-dev"
 				;;
-			sybase_ct@debian)
+			sybase_ct@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent freetds"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
 				;;
+			sybase_ct@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libct4"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile freetds-dev"
+				;;
+			tidy@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent tidyhtml-libs"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile tidyhtml-dev"
+				;;
 			tidy@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libtidy5"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libtidy-dev"
 				;;
+			timezonedb@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
 			uuid@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile uuid-dev"
 				;;
@@ -659,6 +672,16 @@ installBundledModule () {
 		sybase_ct)
 			docker-php-ext-configure sybase_ct --with-sybase-ct=/usr
 			;;
+		tidy)
+			case "$(getDistro)" in
+				alpine)
+					if ! test -f /usr/include/buffio.h; then
+						ln -s /usr/include/tidybuffio.h /usr/include/buffio.h
+						UNNEEDED_PACKAGE_LINKS="$UNNEEDED_PACKAGE_LINKS /usr/include/buffio.h"
+					fi
+					;;
+			esac
+			;;
 		zip)
 			libZipSrc="$(getPackageSource https://libzip.org/download/libzip-1.5.2.tar.gz)"
 			mkdir "$libZipSrc/build"

From b3a13c1563e53800f5064b75bd9d55241e17db3d Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 17:11:55 +0100
Subject: [PATCH 11/12] Continue implementing Alpine support

Test: cmark, tidy, uopz, uuid, wddx, xdebug, xmlrpc, xsl, yaml, zip, -STOP-
---
 install-php-extensions | 62 +++++++++++++++++++++++++++++++-----------
 1 file changed, 46 insertions(+), 16 deletions(-)

diff --git a/install-php-extensions b/install-php-extensions
index 310d82f..5b8e11c 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -206,7 +206,7 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libbz2-dev"
 				;;
 			cmark@alpine)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS cmake"
 				;;
 			cmark@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake"
@@ -461,29 +461,60 @@ buildRequiredPackageLists () {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile tidyhtml-dev"
 				;;
 			tidy@debian)
-				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libtidy5"
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libtidy5*"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libtidy-dev"
 				;;
 			timezonedb@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
 				;;
+			uopz@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
+			uuid@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libuuid"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS util-linux-dev"
+				;;
 			uuid@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile uuid-dev"
 				;;
+			wddx@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
 			wddx@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
+			xdebug@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS"
+				;;
+			xmlrpc@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
+				;;
 			xmlrpc@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
-			xsl@debian)
+			xsl@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libxslt"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxslt-dev"
 				;;
+			xsl@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libxslt1.1"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxslt-dev"
+				;;
+			yaml@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent $PHPIZE_DEPS yaml"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS yaml-dev"
+				;;
 			yaml@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libyaml-0-2"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libyaml-dev"
 				;;
+			zip@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libzip"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile $PHPIZE_DEPS cmake gnutls-dev libzip-dev openssl-dev zlib-dev"
+				;;
 			zip@debian)
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake zlib1g-dev libbz2-dev libmbedtls-dev"
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libzip4 libmbedtls1?"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake gnutls-dev libssl-dev libzip-dev libbz2-dev libmbedtls-dev zlib1g-dev"
 				;;
 		esac
 	done
@@ -683,12 +714,6 @@ installBundledModule () {
 			esac
 			;;
 		zip)
-			libZipSrc="$(getPackageSource https://libzip.org/download/libzip-1.5.2.tar.gz)"
-			mkdir "$libZipSrc/build"
-			cd "$libZipSrc/build"
-			cmake ..
-			make -j$(nproc) install
-			cd -
 			if test $1 -le 703; then
 				docker-php-ext-configure zip --with-libzip
 			else
@@ -837,17 +862,22 @@ installPECLModule () {
 				installPECLModule_actual='https://pecl.php.net/get/ssh2'
 			fi
 			;;
+		uuid)
+			if test $1 -le 506; then
+				installPECLModule_actual="$2-1.0.5"
+			fi
+			;;
 		xdebug)
-			if test $1 -lt 501; then
+			if test $1 -le 500; then
 				installPECLModule_actual="$2-2.0.5"
-			elif test $1 -lt 504; then
+			elif test $1 -le 503; then
 				installPECLModule_actual="$2-2.2.7"
-			elif test $1 -lt 505; then
+			elif test $1 -le 504; then
 				installPECLModule_actual="$2-2.4.1"
-			elif test $1 -lt 700; then
+			elif test $1 -le 506; then
 				installPECLModule_actual="$2-2.5.5"
-			elif test $1 -ge 704; then
-				installPECLModule_actual="$2-2.8.0beta2"
+			elif test $1 -le 700; then
+				installPECLModule_actual="$2-2.6.1"
 			fi
 			;;
 		uopz)

From 5db4a3005e4bd67108f73e167c5231c99ae83121 Mon Sep 17 00:00:00 2001
From: Michele Locati <michele@locati.it>
Date: Wed, 11 Dec 2019 17:34:32 +0100
Subject: [PATCH 12/12] Continue implementing Alpine support

Test: xsl, yaml, -STOP-
---
 install-php-extensions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/install-php-extensions b/install-php-extensions
index 5b8e11c..d440d44 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -494,7 +494,7 @@ buildRequiredPackageLists () {
 				;;
 			xsl@alpine)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libxslt"
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxslt-dev"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxslt-dev libgcrypt-dev"
 				;;
 			xsl@debian)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libxslt1.1"