add new linter script & fix packages where needed

Linter will check packages submitted for CI build. If error was found, build will not be allowed. To ensure that all build.sh scripts are consistent and have at least minimal allowed quality, linter is permanently enabled for all branches and pull requests.
2019-08-14 14:27:16 +03:00 · 2019-08-14 14:27:16 +03:00 · 8701462951
parent 56c33a34ad
commit 8701462951
30 changed files with 494 additions and 55 deletions
--- a/.cirrus.yml
+++ b/.cirrus.yml
@ -3,6 +3,10 @@ container:
  cpu: 4
  memory: 8

+##
+##  When doing release builds (branch 'master'), update Docker image if
+##  required.
+##
 docker_builder:
  name: Update docker image

@ -12,17 +16,38 @@ docker_builder:
    DOCKER_USERNAME: xeffyr
    DOCKER_PASSWORD: ENCRYPTED[abe4dc4418b40a4c5a0c1671e4018fd9cc3bcb811a71f87bdb35967ba721501f958d47d48a3d31ab9cac466b48f238a0]

-  update_script: |
+  script: |
    bash ./scripts/build/ci/cirrus-ci_dispatcher.sh --update-docker

+##
+##  Perform basic check for errors in build.sh package scripts.
+##  If error found, exit with error code to stop build.
+##
 task:
-  name: Build
+  name: Lint packages
+
+  timeout_in: 5m
+
+  depends_on:
+    - Update docker image
+
+  script: |
+    bash scripts/lint-packages.sh
+
+##
+##  Determine changes in the last push, find modified packages and
+##  build them for aarch64/arm/i686/x86_64 architectures.
+##
+##  Built packages are accessible from Cirrus CI web interface.
+##
+task:
+  name: Build packages

  # 2 hours is a maximal timeout available for free use.
  timeout_in: 120m

  depends_on:
-    - Update docker image
+    - Lint packages

  environment:
    TERMUX_MAKE_PROCESSES: 4
@ -32,7 +57,7 @@ task:
      TERMUX_ARCH: i686
      TERMUX_ARCH: x86_64

-  # Do not use built-in git client provided by Cirrus as may
+  # Do not use built-in git client provided by Cirrus as it may
  # cause problems when determining changed files.
  clone_script: |
    if [[ -z "$CIRRUS_PR" ]]; then
@ -50,15 +75,19 @@ task:
  output_artifacts:
    path: "./debs/*.deb"

+##
+##  When doing release build (branch 'master'), upload built packages
+##  to APT repository on Bintray.
+##
 task:
-  name: Publish
+  name: Upload packages to Bintray

  only_if: $CIRRUS_BRANCH == 'master'

  timeout_in: 60m

  depends_on:
-    - Build
+    - Build packages

  environment:
    BINTRAY_USERNAME: xeffyr
@ -66,5 +95,5 @@ task:
    BINTRAY_GPG_SUBJECT: termux
    BINTRAY_GPG_PASSPHRASE: ENCRYPTED[854c09c78b3318a30d3c9094b1010dfebd4c71ad9173b64479eaafaa7e941b050afaa936ad635af3709382492828316f]

-  upload_script: |
+  script: |
    bash ./scripts/build/ci/cirrus-ci_dispatcher.sh --upload
--- a/packages/aapt/build.sh
+++ b/packages/aapt/build.sh
@ -5,6 +5,7 @@ _TAG_VERSION=7.1.2
 _TAG_REVISION=33
 TERMUX_PKG_VERSION=${_TAG_VERSION}.${_TAG_REVISION}
 TERMUX_PKG_REVISION=7
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_BUILD_IN_SRC=true
 TERMUX_PKG_DEPENDS="libc++, libexpat, libpng, libzopfli, zlib"

--- a/packages/ack-grep/build.sh
+++ b/packages/ack-grep/build.sh
@ -5,7 +5,7 @@ TERMUX_PKG_VERSION=3.0.2
 TERMUX_PKG_SRCURL=https://beyondgrep.com/ack-v${TERMUX_PKG_VERSION}
 TERMUX_PKG_SHA256=8e49c66019af3a5bf5bce23c005231b2980e93889aa047ee54d857a75ab4a062
 TERMUX_PKG_DEPENDS="perl"
-TERMUX_PKG_SKIP_SRC_EXTRACT=yes
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/build-essential/build.sh
+++ b/packages/build-essential/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Public Domain"
 TERMUX_PKG_MAINTAINER="Leonid Plyushch <leonid.plyushch@gmail.com>"
 TERMUX_PKG_VERSION=3.1
 TERMUX_PKG_REVISION=4
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_METAPACKAGE=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

--- a/packages/ca-certificates/build.sh
+++ b/packages/ca-certificates/build.sh
@ -5,7 +5,7 @@ TERMUX_PKG_VERSION=20190515
 TERMUX_PKG_SRCURL=https://curl.haxx.se/ca/cacert.pem
 # If the checksum has changed, it may be time to update the package version:
 TERMUX_PKG_SHA256=cb2eca3fbfa232c9e3874e3852d43b33589f27face98eef10242a853d83a437a
-TERMUX_PKG_SKIP_SRC_EXTRACT=yes
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/command-not-found/build.sh
+++ b/packages/command-not-found/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://termux.com
 TERMUX_PKG_DESCRIPTION="Suggest installation of packages in interactive shell sessions"
 TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_VERSION=1.39
+TERMUX_PKG_SKIP_SRC_EXTRACT=true

 termux_step_make_install() {
 	TERMUX_LIBEXEC_DIR=$TERMUX_PREFIX/libexec/termux
--- a/packages/dart/build.sh
+++ b/packages/dart/build.sh
@ -2,7 +2,6 @@ TERMUX_PKG_HOMEPAGE=https://www.dartlang.org/
 TERMUX_PKG_DESCRIPTION="Dart is a general-purpose programming language"
 TERMUX_PKG_LICENSE="BSD"
 TERMUX_PKG_VERSION=2.4.1
-TERMUX_PKG_SKIP_SRC_EXTRACT=yes
 TERMUX_PKG_BUILD_IN_SRC=true

 # Dart uses tar and gzip to extract downloaded packages.
--- a/packages/docbook-xml/build.sh
+++ b/packages/docbook-xml/build.sh
@ -3,7 +3,6 @@ TERMUX_PKG_DESCRIPTION="A widely used XML scheme for writing documentation and h
 TERMUX_PKG_LICENSE="MIT"
 TERMUX_PKG_VERSION=4.5
 TERMUX_PKG_REVISION=1
-TERMUX_PKG_SKIP_SRC_EXTRACT=yes
 TERMUX_PKG_DEPENDS="libxml2-utils"
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_BUILD_IN_SRC=true
--- a/packages/dx/build.sh
+++ b/packages/dx/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=http://developer.android.com/tools/help/index.html
 TERMUX_PKG_DESCRIPTION="Command which takes in class files and reformulates them for usage on Android"
 TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_VERSION=$TERMUX_ANDROID_BUILD_TOOLS_VERSION
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/game-repo/build.sh
+++ b/packages/game-repo/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="Henrik Grimler @Grimler91"
 TERMUX_PKG_VERSION=1.1
 TERMUX_PKG_DEPENDS="termux-keyring"
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/hunspell-en-us/build.sh
+++ b/packages/hunspell-en-us/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://hunspell.github.io
 TERMUX_PKG_DESCRIPTION="American english dictionary for hunspell"
 TERMUX_PKG_LICENSE="LGPL-3.0"
 TERMUX_PKG_VERSION=20181025
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/hunspell-ru/build.sh
+++ b/packages/hunspell-ru/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://hunspell.github.io
 TERMUX_PKG_DESCRIPTION="Russian dictionary for hunspell"
 TERMUX_PKG_LICENSE="LGPL-3.0"
 TERMUX_PKG_VERSION=20170303
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/libandroid-glob/build.sh
+++ b/packages/libandroid-glob/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=http://man7.org/linux/man-pages/man3/glob.3.html
 TERMUX_PKG_DESCRIPTION="Shared library for the glob(3) system function"
 TERMUX_PKG_LICENSE="BSD 3-Clause"
 TERMUX_PKG_VERSION=0.6
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_BREAKS="libandroid-glob-dev"
 TERMUX_PKG_REPLACES="libandroid-glob-dev"
 TERMUX_PKG_BUILD_IN_SRC=true
--- a/packages/libc++/build.sh
+++ b/packages/libc++/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://libcxx.llvm.org/
 TERMUX_PKG_DESCRIPTION="C++ Standard Library"
 TERMUX_PKG_LICENSE="NCSA"
 TERMUX_PKG_VERSION=$TERMUX_NDK_VERSION
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_ESSENTIAL=true

 termux_step_post_make_install() {
--- a/packages/libcrypt/build.sh
+++ b/packages/libcrypt/build.sh
@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="A crypt(3) implementation"
 TERMUX_PKG_LICENSE="BSD 2-Clause"
 TERMUX_PKG_VERSION=0.2
 TERMUX_PKG_REVISION=2
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_DEPENDS="openssl"
 TERMUX_PKG_BREAKS="libcrypt-dev"
 TERMUX_PKG_REPLACES="libcrypt-dev"
--- a/packages/mpd/build.sh
+++ b/packages/mpd/build.sh
@ -2,7 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://www.musicpd.org
 TERMUX_PKG_DESCRIPTION="Music player daemon"
 TERMUX_PKG_LICENSE="GPL-2.0"
 TERMUX_PKG_VERSION=0.21.13
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=https://github.com/MusicPlayerDaemon/MPD/archive/v$TERMUX_PKG_VERSION.tar.gz
 TERMUX_PKG_SHA256=0c71ff34aa4def30cd931977cbfe3deb6ec815a726b8c5343f1b8e5707136ebf
 TERMUX_PKG_DEPENDS="libc++, libcurl, libid3tag, libopus, libpulseaudio, libmpdclient, openal-soft, libvorbis, libsqlite, ffmpeg, libmp3lame, libbz2, libogg, libnfs, zlib"
@ -18,7 +18,7 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 -Dpcre=disabled
 -Dsndio=disabled
 "
-TERMUX_PKG_CONFFILES="$TERMUX_PREFIX/etc/mpd.conf"
+TERMUX_PKG_CONFFILES="etc/mpd.conf"

 termux_step_pre_configure() {
 	# Certain packages are not safe to build on device because their
--- a/packages/mpdscribble/build.sh
+++ b/packages/mpdscribble/build.sh
@ -3,11 +3,11 @@ TERMUX_PKG_DESCRIPTION="A Music Player Daemon (MPD) client which submits informa
 TERMUX_PKG_LICENSE="GPL-2.0"
 TERMUX_PKG_MAINTAINER="Henrik Grimler @Grimler91"
 TERMUX_PKG_VERSION=0.22
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=https://github.com/MusicPlayerDaemon/mpdscribble/archive/v${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=9f6d73e1d0d44bf782c199732acc91bb07efc1c02ae04d037d711860dd8e4012
 TERMUX_PKG_DEPENDS="libcurl, mpd, libmpdclient, glib"
-TERMUX_PKG_CONFFILES="$TERMUX_PREFIX/etc/mpdscribble.conf"
+TERMUX_PKG_CONFFILES="etc/mpdscribble.conf"

 termux_step_pre_configure () {
 	NOCONFIGURE=1 ./autogen.sh
--- a/packages/ndk-multilib/build.sh
+++ b/packages/ndk-multilib/build.sh
@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Multilib binaries for cross-compilation"
 TERMUX_PKG_LICENSE="NCSA"
 TERMUX_PKG_VERSION=$TERMUX_NDK_VERSION
 TERMUX_PKG_REVISION=1
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_NO_STATICSPLIT=true

--- a/packages/ndk-sysroot/build.sh
+++ b/packages/ndk-sysroot/build.sh
@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="System header and library files from the Android NDK nee
 TERMUX_PKG_LICENSE="NCSA"
 TERMUX_PKG_VERSION=$TERMUX_NDK_VERSION
 TERMUX_PKG_REVISION=1
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 # This package has taken over <pty.h> from the previous libutil-dev
 # and iconv.h from libandroid-support-dev:
 TERMUX_PKG_CONFLICTS="libutil-dev, libgcc, libandroid-support-dev"
--- a/packages/resolv-conf/build.sh
+++ b/packages/resolv-conf/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=http://man7.org/linux/man-pages/man5/resolv.conf.5.html
 TERMUX_PKG_DESCRIPTION="Resolver configuration file"
 TERMUX_PKG_LICENSE="Public Domain"
 TERMUX_PKG_VERSION=1.2
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_CONFFILES="etc/resolv.conf"

 termux_step_make_install() {
--- a/packages/root-repo/build.sh
+++ b/packages/root-repo/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="Henrik Grimler @Grimler91"
 TERMUX_PKG_VERSION=1.5
 TERMUX_PKG_DEPENDS="termux-keyring"
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/science-repo/build.sh
+++ b/packages/science-repo/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="Henrik Grimler @Grimler91"
 TERMUX_PKG_VERSION=1.0
 TERMUX_PKG_DEPENDS="termux-keyring"
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/termux-keyring/build.sh
+++ b/packages/termux-keyring/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://github.com/termux
 TERMUX_PKG_DESCRIPTION="GPG public keys for the official Termux repositories"
 TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_VERSION=1.2
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/termux-licenses/build.sh
+++ b/packages/termux-licenses/build.sh
@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://termux.com
 TERMUX_PKG_DESCRIPTION="Contains LICENSE files for common licenses"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_VERSION=1.0
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_ESSENTIAL=true

--- a/packages/termux-tools/build.sh
+++ b/packages/termux-tools/build.sh
@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Basic system tools for Termux"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_VERSION=0.69
 TERMUX_PKG_REVISION=2
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_ESSENTIAL=true
 TERMUX_PKG_CONFFILES="etc/motd"
--- a/packages/tsu/build.sh
+++ b/packages/tsu/build.sh
@ -3,7 +3,6 @@ TERMUX_PKG_DESCRIPTION="A su wrapper for Termux"
 TERMUX_PKG_LICENSE="ISC"
 TERMUX_PKG_VERSION=2.3
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
-TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_BUILD_IN_SRC=true

 termux_step_extract_package() {
--- a/packages/unstable-repo/build.sh
+++ b/packages/unstable-repo/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="Leonid Plyushch <leonid.plyushch@gmail.com>"
 TERMUX_PKG_VERSION=2.0
 TERMUX_PKG_DEPENDS="termux-keyring"
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/packages/x11-repo/build.sh
+++ b/packages/x11-repo/build.sh
@ -4,6 +4,7 @@ TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="Leonid Plyushch <leonid.plyushch@gmail.com>"
 TERMUX_PKG_VERSION=2.0
 TERMUX_PKG_DEPENDS="termux-keyring"
+TERMUX_PKG_SKIP_SRC_EXTRACT=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

 termux_step_make_install() {
--- a/scripts/lint-packages.py
+++ b/scripts/lint-packages.py
@ -1,39 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import re
-import sys
-
-def main():
-    package_dir = 'packages'
-    for pkgdir_name in sorted(os.listdir(package_dir)):
-        dir_path = package_dir + '/' + pkgdir_name
-        build_sh_path = dir_path + '/build.sh'
-        if not os.path.isfile(build_sh_path):
-            sys.exit('No build.sh file in: ' + pkgdir_name)
-        with open(build_sh_path) as build_sh:
-            lines = build_sh.readlines()
-        validate_package(pkgdir_name, lines)
-
-def validate_package(package_name, lines):
-    if len(lines) < 3:
-        print('Too few lines in package: ' + package_name)
-        return
-    if not lines[0].startswith('TERMUX_PKG_HOMEPAGE='):
-        print('The first line is not TERMUX_PKG_HOMEPAGE: ' + package_name)
-    if not lines[1].startswith('TERMUX_PKG_DESCRIPTION='):
-        print('The second line is not TERMUX_PKG_DESCRIPTION: ' + package_name)
-
-    line_number = 1
-    for line in lines:
-        if line.endswith(' \n'):
-            print(package_name + ': Line ' + str(line_number) + ' has trailing whitespace')
-        if line.startswith('TERMUX_PKG_REVISION='):
-            value = line[len('TERMUX_PKG_REVISION='):].strip()
-            if not re.match('[0-9]+', value):
-                print(package_name + ': strange TERMUX_PKG_REVISION value "' + value + '"')
-
-        line_number += 1
-
-if __name__ == '__main__':
-    main()
--- a/scripts/lint-packages.sh
+++ b/scripts/lint-packages.sh
@ -0,0 +1,432 @@
+#!/usr/bin/env bash
+
+set -e -u
+
+REPO_DIR=$(realpath "$(dirname "$0")/../")
+PACKAGES_DIR="$REPO_DIR/packages"
+
+check_package_license() {
+	local pkg_licenses=$1
+	local license
+	local license_ok=true
+
+	IFS=","
+	for license in $pkg_licenses; do
+		license=$(echo "$license" | sed -r 's/^\s*(\S+(\s+\S+)*)\s*$/\1/')
+
+		case "$license" in
+			AFL-2.1|AFL-3.0|AGPL-V3|APL-1.0|APSL-2.0|Apache-1.0|Apache-1.1);;
+			Apache-2.0|Artistic-License-2.0|Attribution|BSD|"BSD 2-Clause");;
+			"BSD 3-Clause"|"BSD New"|"BSD Simplified"|BSL-1.0|Bouncy-Castle);;
+			CA-TOSL-1.1|CC0-1.0|CDDL-1.0|CDDL-1.1|CPAL-1.0|CPL-1.0|CPOL);;
+			CPOL-1.02|CUAOFFICE-1.0|CeCILL-1|CeCILL-2|CeCILL-2.1|CeCILL-B);;
+			CeCILL-C|Codehaus|Copyfree|Day|Day-Addendum|ECL2|EPL-1.0|EPL-2.0);;
+			EUDATAGRID|EUPL-1.1|EUPL-1.2|Eiffel-2.0|Entessa-1.0);;
+			Facebook-Platform|Fair|Frameworx-1.0|GPL-2.0|GPL-3.0|GPL-3.0-only);;
+			GPL-3.0-or-later|Go|HSQLDB|Historical|IBMPL-1.0|IJG|IPAFont-1.0);;
+			ISC|IU-Extreme-1.1.1|ImageMagick|JA-SIG|JSON|JTidy|LGPL-2.0);;
+			LGPL-2.1|LGPL-3.0|LPPL-1.0|Libpng|Lucent-1.02|MIT|MPL-2.0|MS-PL);;
+			MS-RL|MirOS|Motosoto-0.9.1|Mozilla-1.1|Multics|NASA-1.3|NAUMEN);;
+			NCSA|NOSL-3.0|NTP|NUnit-2.6.3|NUnit-Test-Adapter-2.6.3|Nethack);;
+			Nokia-1.0a|OCLC-2.0|OSL-3.0|OpenLDAP|OpenSSL|Openfont-1.1);;
+			Opengroup|PHP-3.0|PostgreSQL|"Public Domain"|"Public Domain - SUN");;
+			PythonPL|PythonSoftFoundation|QTPL-1.0|RPL-1.5|Real-1.0|RicohPL);;
+			SUNPublic-1.0|Scala|SimPL-2.0|Sleepycat|Sybase-1.0|TMate|UPL-1.0);;
+			Unicode-DFS-2015|Unlicense|UoI-NCSA|"VIM License"|VovidaPL-1.0|W3C);;
+			WTFPL|Xnet|ZLIB|ZPL-2.0|wxWindows);;
+
+			*)
+				license_ok=false
+				break
+				;;
+		esac
+	done
+	IFS=$old_ifs
+
+	if $license_ok; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+lint_package() {
+	local package_script
+	local package_name
+
+	package_script=$1
+	package_name=$(basename "$(dirname "$package_script")")
+
+	echo "================================================================"
+	echo
+	echo "Package: $package_name"
+	echo
+	echo -n "Syntax check: "
+
+	local syntax_errors
+	syntax_errors=$(bash -n "$package_script" 2>&1)
+
+	if [ -n "$syntax_errors" ]; then
+		echo "FAILED"
+		echo
+		echo "$syntax_errors"
+		echo
+
+		return 1
+	else
+		echo "PASS"
+	fi
+
+	echo
+
+	# Fields checking is done in subshell since we will source build.sh.
+	(set +e +u
+		local pkg_lint_error
+
+		# Certain fields may be API-specific.
+		# Using API 24 here.
+		TERMUX_PKG_API_LEVEL=24
+
+		. "$REPO_DIR/scripts/properties.sh"
+
+		. "$package_script"
+
+		pkg_lint_error=false
+
+		echo -n "TERMUX_PKG_HOMEPAGE: "
+		if [ -n "$TERMUX_PKG_HOMEPAGE" ]; then
+			if ! grep -qP '^https://.+' <<< "$TERMUX_PKG_HOMEPAGE"; then
+				echo "NON-HTTPS"
+			else
+				echo "PASS"
+			fi
+		else
+			echo "NOT SET"
+			pkg_lint_error=true
+		fi
+
+		echo -n "TERMUX_PKG_DESCRIPTION: "
+		if [ -n "$TERMUX_PKG_DESCRIPTION" ]; then
+			str_length=$(($(wc -c <<< "$TERMUX_PKG_DESCRIPTION") - 1))
+
+			if [ $str_length -gt 100 ]; then
+				echo "TOO LONG (allowed: 100 characters max)"
+			else
+				echo "PASS"
+			fi
+
+			unset str_length
+		else
+			echo "NOT SET"
+			pkg_lint_error=true
+		fi
+
+		echo -n "TERMUX_PKG_LICENSE: "
+		if [ -n "$TERMUX_PKG_LICENSE" ]; then
+			if [ "$TERMUX_PKG_LICENSE" = "custom" ]; then
+				echo "CUSTOM"
+			elif [ "$TERMUX_PKG_LICENSE" = "non-free" ]; then
+				echo "NON-FREE"
+			else
+				if check_package_license "$TERMUX_PKG_LICENSE"; then
+					echo "PASS"
+				else
+					echo "INVALID"
+					pkg_lint_error=true
+				fi
+			fi
+		else
+			echo "NOT SET"
+			pkg_lint_error=true
+		fi
+
+		if [ -n "$TERMUX_PKG_API_LEVEL" ]; then
+			echo -n "TERMUX_PKG_API_LEVEL: "
+
+			if grep -qP '^[1-9][0-9]$' <<< "$TERMUX_PKG_API_LEVEL"; then
+				if [ $TERMUX_PKG_API_LEVEL -lt 24 ] || [ $TERMUX_PKG_API_LEVEL -gt 28 ]; then
+					echo "INVALID (allowed: number in range 24 - 28)"
+					pkg_lint_error=true
+				else
+					echo "PASS"
+				fi
+			else
+				echo "INVALID (allowed: number in range 24 - 28)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		echo -n "TERMUX_PKG_VERSION: "
+		if [ -n "$TERMUX_PKG_VERSION" ]; then
+			echo "PASS"
+		else
+			echo "NOT SET"
+			pkg_lint_error=true
+		fi
+
+		if [ -n "$TERMUX_PKG_REVISION" ]; then
+			echo -n "TERMUX_PKG_REVISION: "
+
+			if grep -qP '^[1-9](\d{1,8})?$' <<< "$TERMUX_PKG_REVISION"; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: number in range 1 - 999999999)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_SKIP_SRC_EXTRACT" ]; then
+			echo -n "TERMUX_PKG_SKIP_SRC_EXTRACT: "
+
+			if [ "$TERMUX_PKG_SKIP_SRC_EXTRACT" = "true" ] || [ "$TERMUX_PKG_SKIP_SRC_EXTRACT" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_SRCURL" ]; then
+			echo -n "TERMUX_PKG_SRCURL: "
+
+			urls_ok=true
+			for url in "${TERMUX_PKG_SRCURL[@]}"; do
+				if [ -n "$url" ]; then
+					if ! grep -qP '^https://.+' <<< "$url"; then
+						echo "NON-HTTPS"
+						urls_ok=false
+						break
+					fi
+				else
+					echo "NOT SET (one of the array elements)"
+					urls_ok=false
+					pkg_lint_error=true
+					break
+				fi
+			done
+			unset url
+
+			if $urls_ok; then
+				echo "PASS"
+			fi
+			unset urls_ok
+
+			echo -n "TERMUX_PKG_SHA256: "
+			if [ -n "$TERMUX_PKG_SHA256" ]; then
+				if [ "${#TERMUX_PKG_SRCURL[@]}" -eq "${#TERMUX_PKG_SHA256[@]}" ]; then
+					sha256_ok=true
+
+					for sha256 in "${TERMUX_PKG_SHA256[@]}"; do
+						if ! grep -qP '^[0-9a-fA-F]{64}$' <<< "${sha256}" && [ "$sha256" != "SKIP_CHECKSUM" ]; then
+							echo "MALFORMED (SHA-256 should contain 64 hexadecimal numbers)"
+							sha256_ok=false
+							pkg_lint_error=true
+							break
+						fi
+					done
+					unset sha256
+
+					if $sha256_ok; then
+						echo "PASS"
+					fi
+					unset sha256_ok
+				else
+					echo "LENGTHS OF 'TERMUX_PKG_SRCURL' AND 'TERMUX_PKG_SHA256' ARE NOT EQUAL"
+					pkg_lint_error=true
+				fi
+			else
+				echo "NOT SET"
+				pkg_lint_error=true
+			fi
+		else
+			if [ "$TERMUX_PKG_SKIP_SRC_EXTRACT" != "true" ] && ! declare -F termux_step_extract_package > /dev/null 2>&1; then
+				echo "TERMUX_PKG_SRCURL: NOT SET (set TERMUX_PKG_SKIP_SRC_EXTRACT to 'true' if no sources downloaded)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_METAPACKAGE" ]; then
+			echo -n "TERMUX_PKG_METAPACKAGE: "
+
+			if [ "$TERMUX_PKG_METAPACKAGE" = "true" ] || [ "$TERMUX_PKG_METAPACKAGE" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_ESSENTIAL" ]; then
+			echo -n "TERMUX_PKG_ESSENTIAL: "
+			if [ "$TERMUX_PKG_ESSENTIAL" = "true" ] || [ "$TERMUX_PKG_ESSENTIAL" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_NO_STATICSPLIT" ]; then
+			echo -n "TERMUX_PKG_NO_STATICSPLIT: "
+
+			if [ "$TERMUX_PKG_NO_STATICSPLIT" = "true" ] || [ "$TERMUX_PKG_NO_STATICSPLIT" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_BUILD_IN_SRC" ]; then
+			echo -n "TERMUX_PKG_BUILD_IN_SRC: "
+
+			if [ "$TERMUX_PKG_BUILD_IN_SRC" = "true" ] || [ "$TERMUX_PKG_BUILD_IN_SRC" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_HAS_DEBUG" ]; then
+			echo -n "TERMUX_PKG_HAS_DEBUG: "
+
+			if [ "$TERMUX_PKG_HAS_DEBUG" = "true" ] || [ "$TERMUX_PKG_HAS_DEBUG" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_PLATFORM_INDEPENDENT" ]; then
+			echo -n "TERMUX_PKG_PLATFORM_INDEPENDENT: "
+
+			if [ "$TERMUX_PKG_PLATFORM_INDEPENDENT" = "true" ] || [ "$TERMUX_PKG_PLATFORM_INDEPENDENT" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_HOSTBUILD" ]; then
+			echo -n "TERMUX_PKG_HOSTBUILD: "
+
+			if [ "$TERMUX_PKG_HOSTBUILD" = "true" ] || [ "$TERMUX_PKG_HOSTBUILD" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_FORCE_CMAKE" ]; then
+			echo -n "TERMUX_PKG_FORCE_CMAKE: "
+
+			if [ "$TERMUX_PKG_FORCE_CMAKE" = "true" ] || [ "$TERMUX_PKG_FORCE_CMAKE" = "false" ]; then
+				echo "PASS"
+			else
+				echo "INVALID (allowed: true / false)"
+				pkg_lint_error=true
+			fi
+		fi
+
+		if [ -n "$TERMUX_PKG_RM_AFTER_INSTALL" ]; then
+			echo -n "TERMUX_PKG_RM_AFTER_INSTALL: "
+			file_path_ok=true
+
+			while read -r file_path; do
+				[ -z "$file_path" ] && continue
+
+				if grep -qP '^(\.\.)?/' <<< "$file_path"; then
+					echo "INVALID (file path should be relative to prefix)"
+					file_path_ok=false
+					pkg_lint_error=true
+					break
+				fi
+			done <<< "$TERMUX_PKG_RM_AFTER_INSTALL"
+			unset file_path
+
+			if $file_path_ok; then
+				echo "PASS"
+			fi
+			unset file_path_ok
+		fi
+
+		if [ -n "$TERMUX_PKG_CONFFILES" ]; then
+			echo -n "TERMUX_PKG_CONFFILES: "
+			file_path_ok=true
+
+			while read -r file_path; do
+				[ -z "$file_path" ] && continue
+
+				if grep -qP '^(\.\.)?/' <<< "$file_path"; then
+					echo "INVALID (file path should be relative to prefix)"
+					file_path_ok=false
+					pkg_lint_error=true
+					break
+				fi
+			done <<< "$TERMUX_PKG_CONFFILES"
+			unset file_path
+
+			if $file_path_ok; then
+				echo "PASS"
+			fi
+			unset file_path_ok
+		fi
+
+		if $pkg_lint_error; then
+			exit 1
+		else
+			exit 0
+		fi
+	)
+
+	local ret=$?
+
+	echo
+
+	return "$ret"
+}
+
+linter_main() {
+	local package_counter=0
+	local problems_found=false
+	local package_script
+
+	for package_script in "$@"; do
+		if ! lint_package "$package_script"; then
+			problems_found=true
+			break
+		fi
+
+		package_counter=$((package_counter + 1))
+	done
+
+	if $problems_found; then
+		echo "================================================================"
+		echo
+		echo "A problem has been found in '$(realpath --relative-to="$REPO_DIR" "$package_script")'."
+		echo "Checked $package_counter packages before first error was detected."
+		echo
+		echo "================================================================"
+
+		return 1
+	else
+		echo "================================================================"
+		echo
+		echo "Checked $package_counter packages."
+		echo "Everything seems ok."
+		echo
+		echo "================================================================"
+	fi
+
+	return 0
+}
+
+if [ $# -eq 0 ]; then
+	linter_main "$PACKAGES_DIR"/*/build.sh || exit 1
+else
+	linter_main "$@" || exit 1
+fi