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bt
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#!/usr/bin/env python3
#
# bt is part of Brewtarget, and is copyright the following authors 2022-2023:
# • Matt Young <[email protected]>
#
# Brewtarget is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# Brewtarget is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
#-----------------------------------------------------------------------------------------------------------------------
# This build tool (bt) script helps with Git setup, meson build configuration and packaging. Usage is:
#
# ./bt setup Sets up Git options and configures the 'mbuild' meson build directory
#
# ./bt setup all As above but also tries to install all tools and dependencies we need
#
# ./bt package Does the packaging. First runs 'meson install' (with extra options to "install"
# binaries, data etc to a subdirectory of the build directory rather than to where they
# need to be for a local install). Then creates a distributable package, making use
# of various build variables passed back from Meson.
#
#
#
# .:TODO:. At some point we should be able to retire:
# configure
# setupgit.sh
# CMakeLists.txt
# src/CMakeLists.txt
#
# .:TODO:. We should probably also break this file up into several smaller ones!
#
# Note that Python allows both single and double quotes for delimiting strings. In Meson, we need single quotes, in
# C++, we need double quotes. We mostly try to use single quotes below for consistency with Meson, except where using
# double quotes avoids having to escape a single quote.
#-----------------------------------------------------------------------------------------------------------------------
#-----------------------------------------------------------------------------------------------------------------------
# Python built-in modules we use
#-----------------------------------------------------------------------------------------------------------------------
import argparse
import datetime
import glob
import logging
import os
import pathlib
import platform
import re
import shutil
import stat
import subprocess
import sys
import tempfile
from decimal import Decimal
#-----------------------------------------------------------------------------------------------------------------------
# Global constants
#-----------------------------------------------------------------------------------------------------------------------
# There is some inevitable duplication with constants in meson.build, but we try to keep it to a minimum
projectName = 'brewtarget'
capitalisedProjectName = projectName.capitalize()
projectUrl = 'https://github.com/' + capitalisedProjectName + '/' + projectName + '/'
#-----------------------------------------------------------------------------------------------------------------------
# Welcome banner and environment info
#-----------------------------------------------------------------------------------------------------------------------
# The '%c' argument to strftime means "Locale’s appropriate date and time representation"
print(
'⭐ ' + capitalisedProjectName + ' Build Tool (bt) running on ' + platform.system() + ' (' + platform.release() +
'), using Python ' + platform.python_version() + ', at ' + datetime.datetime.now().strftime('%c') + ' ⭐'
)
#-----------------------------------------------------------------------------------------------------------------------
# Set up logging to stderr
#-----------------------------------------------------------------------------------------------------------------------
logging.basicConfig(format='%(message)s')
log = logging.getLogger(__name__)
# This is our default log level, but it can be overridden via the -v and -q command line options -- see below
log.setLevel(logging.INFO)
# Include the log level in the message
handler = logging.StreamHandler()
handler.setFormatter(
# You can add timestamps etc to logs, but that's overkill for this script. Source file location of log message is
# however pretty useful for debugging.
logging.Formatter('{levelname:s}: {message} [{filename:s}:{lineno:d}]', style='{')
)
log.addHandler(handler)
# If we don't do this, everything gets printed twice
log.propagate = False
#-----------------------------------------------------------------------------------------------------------------------
# Python 3rd-party modules we use
#-----------------------------------------------------------------------------------------------------------------------
# Per https://docs.python.org/3/library/ensurepip.html, the official way to ensure Pip is installed and at the latest
# version is via 'python -m ensurepip --upgrade' (which should of course be 'python3 -m ensurepip --upgrade' on systems
# that have both Python 2 and Python 3). However, on Debian/Ubuntu, this will give an error "No module named ensurepip"
# because ensurepip is deliberately disabled to push you towards using 'sudo apt update' +
# 'sudo apt install python3-pip'.
if (platform.system() != 'Linux'):
# https://docs.python.org/3/library/sys.html#sys.executable says sys.executable is '"the absolute path of the
# executable binary for the Python interpreter, on systems where this makes sense".
log.info(
'Attempting to ensure latest version of Pip is installed via ' + sys.executable + ' -m ensurepip --upgrade'
)
subprocess.run([sys.executable, '-m', 'ensurepip', '--upgrade'])
else:
# We don't want to run a sudo command every time the script is invoked, so check whether it's necessary
exe_pip = shutil.which('pip3')
if (exe_pip is None or exe_pip == ''):
log.info('Attempting to install Pip')
subprocess.run(['sudo', 'apt', 'update'])
subprocess.run(['sudo', 'apt', 'install', 'python3-pip'])
# If Pip still isn't installed we need to bail here.
exe_pip = shutil.which('pip3')
if (exe_pip is None or exe_pip == ''):
pathEnvVar = ''
if ('PATH' in os.environ):
pathEnvVar = os.environ['PATH']
log.critical(
'Cannot find pip (PATH=' + pathEnvVar + ') - please see https://pip.pypa.io/en/stable/installation/ for how to ' +
'install'
)
exit(1)
#
# We use the packaging module (see https://pypi.org/project/packaging/) for handling version numbers (as described at
# https://packaging.pypa.io/en/stable/version.html).
#
# On MacOS at least, we also need to install setuptools to be able to access packaging.version.
#
subprocess.run([exe_pip, 'install', 'packaging'])
subprocess.run([exe_pip, 'install', 'setuptools'])
import packaging.version
# The requests library (see https://pypi.org/project/requests/) is used for downloading files in a more Pythonic way
# than invoking wget through the shell.
subprocess.run([exe_pip, 'install', 'requests'])
import requests
#
# Once all platforms we're running on have Python version 3.11 or above, we will be able to use the built-in tomllib
# library (see https://docs.python.org/3/library/tomllib.html) for parsing TOML. Until then, it's easier to import the
# tomlkit library (see https://pypi.org/project/tomlkit/) which actually has rather more functionality than we need
#
subprocess.run([exe_pip, 'install', 'tomlkit'])
import tomlkit
#-----------------------------------------------------------------------------------------------------------------------
# Parse command line arguments
#-----------------------------------------------------------------------------------------------------------------------
# We do this (nearly) first as we want the program to exit straight away if incorrect arguments are specified
# Choosing which action to call is done a the end of the script, after all functions are defined
#
# Using Python argparse saves us writing a lot of boilerplate, although the help text it generates on the command line
# is perhaps a bit more than we want (eg having to separate 'bt --help' and 'bt setup --help' is overkill for us).
# There are ways around this -- eg see
# https://stackoverflow.com/questions/20094215/argparse-subparser-monolithic-help-output -- but they are probably more
# complexity than is merited here.
#
parser = argparse.ArgumentParser(
prog = 'bt',
description = capitalisedProjectName + ' build tool. A utility to help with installing dependencies, Git ' +
'setup, Meson build configuration and packaging.',
epilog = 'See ' + projectUrl + ' for info and latest releases'
)
# Log level
group = parser.add_mutually_exclusive_group()
group.add_argument('-v', '--verbose', action = 'store_true', help = 'Enable debug logging of this script')
group.add_argument('-q', '--quiet', action = 'store_true', help = 'Suppress info logging of this script')
# Per https://docs.python.org/3/library/argparse.html#sub-commands, you use sub-parsers for sub-commands.
subparsers = parser.add_subparsers(
dest = 'subCommand',
required = True,
title = 'action',
description = "Exactly one of the following actions must be specified. (For actions marked ✴, specify -h or "
"--help AFTER the action for info about options -- eg '%(prog)s setup --help'.)"
)
# Parser for 'setup'
parser_setup = subparsers.add_parser('setup', help = '✴ Set up meson build directory (mbuild) and git options')
subparsers_setup = parser_setup.add_subparsers(dest = 'setupOption', required = False)
parser_setup_all = subparsers_setup.add_parser(
'all',
help = 'Specifying this will also automatically install libraries and frameworks we depend on'
)
# Parser for 'package'
parser_package = subparsers.add_parser('package', help='Build a distributable installer')
#
# Process the arguments for use below
#
# This try/expect ensures that help is printed if the script is invoked without arguments. It's not perfect as you get
# the usage line twice (because parser.parse_args() outputs it to stderr before throwing SystemExit) but it's good
# enough for now at least.
#
try:
args = parser.parse_args()
except SystemExit as se:
if (se.code != None and se.code != 0):
parser.print_help()
sys.exit(0)
#
# The one thing we do set straight away is log level
# Possible levels are 'CRITICAL', 'ERROR', 'WARNING', 'INFO', 'DEBUG', 'NOTSET'. We choose 'INFO' for default, 'DEBUG'
# for verbose and 'WARNING' for quiet. You wouldn't want to suppress warnings, would you? :-)
#
if (args.verbose):
log.setLevel(logging.DEBUG)
elif (args.quiet):
log.setLevel(logging.WARNING)
log.debug('Parsed command line arguments as ' + str(args))
#-----------------------------------------------------------------------------------------------------------------------
# Note the working directory from which we were invoked -- though it shouldn't matter as we try to be independent of
# this
#-----------------------------------------------------------------------------------------------------------------------
log.debug('Working directory when invoked: ' + pathlib.Path.cwd().as_posix())
#-----------------------------------------------------------------------------------------------------------------------
# Directories
#-----------------------------------------------------------------------------------------------------------------------
dir_base = pathlib.Path(__file__).parent.resolve()
dir_gitInfo = dir_base.joinpath('.git')
dir_build = dir_base.joinpath('mbuild')
# Where submodules live and how many there are. Currently there are 2: libbacktrace and valijson
dir_gitSubmodules = dir_base.joinpath('third-party')
num_gitSubmodules = 2
# Top-level packaging directory - NB deliberately different name from 'packaging' (= dir_base.joinpath('packaging'))
dir_packages = dir_build.joinpath('packages')
dir_packages_platform = dir_packages.joinpath(platform.system().lower()) # Platform-specific packaging directory
dir_packages_source = dir_packages.joinpath('source')
#-----------------------------------------------------------------------------------------------------------------------
# Helper function for checking result of running external commands
#
# Given a CompletedProcess object returned from subprocess.run(), this checks the return code and, if it is non-zero
# stops this script with an error message and the same return code. Otherwise the CompletedProcess object is returned
# to the caller (to make it easier to chain things together).
#-----------------------------------------------------------------------------------------------------------------------
def abortOnRunFail(runResult: subprocess.CompletedProcess):
if (runResult.returncode != 0):
# According to https://docs.python.org/3/library/subprocess.html#subprocess.CompletedProcess,
# CompletedProcess.args (the arguments used to launch the process) "may be a list or a string", but its not clear
# when it would be one or the other.
if (isinstance(runResult.args, str)):
log.critical('Error running ' + runResult.args)
else:
commandName = os.path.basename(runResult.args[0])
log.critical('Error running ' + commandName + ' (' + ' '.join(str(ii) for ii in runResult.args) + ')')
exit(runResult.returncode)
return runResult
#-----------------------------------------------------------------------------------------------------------------------
# Helper function for copying one or more files to a directory that might not yet exist
#-----------------------------------------------------------------------------------------------------------------------
def copyFilesToDir(files, directory):
os.makedirs(directory, exist_ok=True)
for currentFile in files:
log.debug('Copying ' + currentFile + ' to ' + directory)
shutil.copy2(currentFile, directory)
return
#-----------------------------------------------------------------------------------------------------------------------
# Helper function for counting files in a directory tree
#-----------------------------------------------------------------------------------------------------------------------
def numFilesInTree(path):
numFiles = 0
for root, dirs, files in os.walk(path):
numFiles += len(files)
return numFiles
#-----------------------------------------------------------------------------------------------------------------------
# Helper function for downloading a file
#-----------------------------------------------------------------------------------------------------------------------
def downloadFile(url):
filename = url.split('/')[-1]
log.info('Downloading ' + url + ' to ' + filename + ' in directory ' + pathlib.Path.cwd().as_posix())
response = requests.get(url)
if (response.status_code != 200):
log.critical('Error code ' + response.status_code + ' while downloading ' + url)
exit(1)
with open(filename, 'wb') as fd:
for chunk in response.iter_content(chunk_size = 128):
fd.write(chunk)
return
#-----------------------------------------------------------------------------------------------------------------------
# Set global variables exe_git and exe_meson with the locations of the git and meson executables plus mesonVersion with
# the version of meson installed
#
# We want to give helpful error messages if Meson or Git is not installed. For other missing dependencies we can rely
# on Meson itself to give explanatory error messages.
#-----------------------------------------------------------------------------------------------------------------------
def findMesonAndGit():
# Advice at https://docs.python.org/3/library/subprocess.html is "For maximum reliability, use a fully qualified path
# for the executable. To search for an unqualified name on PATH, use shutil.which()"
# Check Meson is installed. (See installDependencies() below for what we do to attempt to install it from this
# script.)
global exe_meson
exe_meson = shutil.which("meson")
if (exe_meson is None or exe_meson == ""):
log.critical('Cannot find meson - please see https://mesonbuild.com/Getting-meson.html for how to install')
exit(1)
global mesonVersion
rawVersion = abortOnRunFail(subprocess.run([exe_meson, '--version'], capture_output=True)).stdout.decode('UTF-8').rstrip()
log.debug('Meson version raw: ' + rawVersion)
mesonVersion = packaging.version.parse(rawVersion)
log.debug('Meson version parsed: ' + str(mesonVersion))
# Check Git is installed if its magic directory is present
global exe_git
exe_git = shutil.which("git")
if (dir_gitInfo.is_dir()):
log.debug('Found git information directory:' + dir_gitInfo.as_posix())
if (exe_git is None or exe_git == ""):
log.critical('Cannot find git - please see https://git-scm.com/downloads for how to install')
exit(1)
return
#-----------------------------------------------------------------------------------------------------------------------
# Copy a file, removing comments and folded lines
#
# Have had various problems with comments in debian package control file, even though they are theoretically allowed, so
# we strip them out here, hence slightly more involved code than just
# shutil.copy2(dir_build.joinpath('control'), dir_packages_deb_control)
#
# Similarly, some of the fields in the debian control file that we want to split across multiple lines are not actually
# allowed to be so "folded" by the Debian package generator. So, we do our own folding here. (At the same time, we
# remove extra spaces that make sense on the unfolded line but not once everything is joined onto single line.)
#-----------------------------------------------------------------------------------------------------------------------
def copyWithoutCommentsOrFolds(inputPath, outputPath):
with open(inputPath, 'r') as inputFile, open(outputPath, 'w') as outputFile:
for line in inputFile:
if (not line.startswith('#')):
if (not line.endswith('\\\n')):
outputFile.write(line)
else:
foldedLine = ""
while (line.endswith('\\\n')):
foldedLine += line.removesuffix('\\\n')
line = next(inputFile)
foldedLine += line
# The split and join here is a handy trick for removing repeated spaces from the line without
# fumbling around with regular expressions. Note that this takes the newline off the end, hence
# why we have to add it back manually.
outputFile.write(' '.join(foldedLine.split()))
outputFile.write('\n')
return
#-----------------------------------------------------------------------------------------------------------------------
# Create fileToDistribute.sha256sum for a given fileToDistribute in a given directory
#-----------------------------------------------------------------------------------------------------------------------
def writeSha256sum(directory, fileToDistribute):
#
# In Python 3.11 we could use the file_digest() function from the hashlib module to do this. But it's rather
# more work to do in Python 3.10, so we just use the `sha256sum` command instead.
#
# Note however, that `sha256sum` includes the supplied directory path of a file in its output. We want just the
# filename, not its full or partial path on the build machine. So we change into the directory of the file before
# running the `sha256sum` command.
#
previousWorkingDirectory = pathlib.Path.cwd().as_posix()
os.chdir(directory)
with open(directory.joinpath(fileToDistribute + '.sha256sum').as_posix(),'w') as sha256File:
abortOnRunFail(
subprocess.run(['sha256sum', fileToDistribute],
capture_output=False,
stdout=sha256File)
)
os.chdir(previousWorkingDirectory)
return
#-----------------------------------------------------------------------------------------------------------------------
# Ensure git submodules are present
#
# When a git repository is cloned, the submodules don't get cloned until you specifically ask for it via the
# --recurse-submodules flag.
#
# (Adding submodules is done via Git itself. Eg:
# cd ../third-party
# git submodule add https://github.com/ianlancetaylor/libbacktrace
# But this only needs to be done once, by one person, and committed to our repository, where the connection is
# stored in the .gitmodules file.)
#-----------------------------------------------------------------------------------------------------------------------
def ensureSubmodulesPresent():
findMesonAndGit()
if (not dir_gitSubmodules.is_dir()):
log.info('Creating submodules directory: ' + dir_gitSubmodules.as_posix())
os.makedirs(dir_gitSubmodules, exist_ok=True)
if (numFilesInTree(dir_gitSubmodules) < num_gitSubmodules):
log.info('Pulling in submodules in ' + dir_gitSubmodules.as_posix())
abortOnRunFail(subprocess.run([exe_git, "submodule", "init"], capture_output=False))
abortOnRunFail(subprocess.run([exe_git, "submodule", "update"], capture_output=False))
return
#-----------------------------------------------------------------------------------------------------------------------
# Function to install dependencies -- called if the user runs 'bt setup all'
#-----------------------------------------------------------------------------------------------------------------------
def installDependencies():
log.info('Checking which dependencies need to be installed')
#
# I looked at using ConanCenter (https://conan.io/center/) as a source of libraries, so that we could automate
# installing dependencies, but it does not have all the ones we need. Eg it has Boost, Qt, Xerces-C and Valijson,
# but not Xalan-C. (Someone else has already requested Xalan-C, see
# https://github.com/conan-io/conan-center-index/issues/5546, but that request has been open a long time, so its
# fulfilment doesn't seem imminent.) It also doesn't yet integrate quite as well with meson as we might like (eg
# as at 2023-01-15, https://docs.conan.io/en/latest/reference/conanfile/tools/meson.html is listed as "experimental
# and subject to breaking changes".
#
# Another option is vcpkg (https://vcpkg.io/en/index.html), which does have both Xerces-C and Xalan-C, along with
# Boost, Qt and Valijson. There is an example here https://github.com/Neumann-A/meson-vcpkg of how to use vcpkg from
# Meson. However, it's pretty slow to get started with because it builds from source everything it installs
# (including tools it depends on such as CMake) -- even if they are already installed on your system from another
# source. This is laudably correct but I'm too impatient to do things that way.
#
# Will probably take another look at Conan in future, subject to working out how to have it use already-installed
# versions of libraries/frameworks if they are present. The recommended way to install Conan is via a Python
# package, which makes that part easy. However, there is a fair bit of other ramp-up to do, and some breaking
# changes between "current" Conan 1.X and "soon-to-be-released" Conan 2.0. So, will leave it for now and stick
# mostly to native installs for each of the 3 platforms (Linux, Windows, Mac).
#
# Other notes:
# - GNU coreutils (https://www.gnu.org/software/coreutils/manual/coreutils.html) is probably already installed on
# most Linux distros, but not necessarily on Mac and Windows. It gives us sha256sum.
#
match platform.system():
#-----------------------------------------------------------------------------------------------------------------
#---------------------------------------------- Linux Dependencies -----------------------------------------------
#-----------------------------------------------------------------------------------------------------------------
case 'Linux':
#
# NOTE: For the moment at least, we are assuming you are on Ubuntu or another Debian-based Linux. For other
# flavours of the OS you need to install libraries and frameworks manually.
#
#
# We need a recent version of Boost, ie Boost 1.79 or newer, to use Boost.JSON. For Windows and Mac this is
# fine if you are installing from MSYS2 (https://packages.msys2.org/package/mingw-w64-x86_64-boost) or
# Homebrew (https://formulae.brew.sh/formula/boost) respectively. Unfortunately, as of late-2022, many
# Linux distros provide only older versions of Boost. (Eg, on Ubuntu, you can see this by running
# 'apt-cache policy libboost-dev'.)
#
# First, check whether Boost is installed and if so, what version
#
# We'll look in the following places:
# /usr/include/boost/version.hpp <-- Distro-installed Boost
# /usr/local/include/boost/version.hpp <-- Manually-installed Boost
# ${BOOST_ROOT}/boost/version.hpp <-- If the BOOST_ROOT environment variable is set it gives an
# alternative place to look
#
# Although things should compile with 1.79.0, if we're going to all the bother of installing Boost, we'll
# install a more recent one
minBoostVersion = packaging.version.parse('1.79.0')
boostVersionToInstall = packaging.version.parse('1.80.0') # NB: This _must_ have the patch version
maxBoostVersionFound = packaging.version.parse('0')
possibleBoostVersionHeaders = [pathlib.Path('/usr/include/boost/version.hpp'),
pathlib.Path('/usr/local/include/boost/version.hpp')]
if ('BOOST_ROOT' in os.environ):
possibleBoostVersionHeaders.append(pathlib.Path(os.environ['BOOST_ROOT']).joinpath('boost/version.hpp'))
for boostVersionHeader in possibleBoostVersionHeaders:
if (boostVersionHeader.is_file()):
runResult = abortOnRunFail(
subprocess.run(
['grep', '#define BOOST_LIB_VERSION ', boostVersionHeader.as_posix()],
encoding = "utf-8",
capture_output = True
)
)
log.debug('In ' + boostVersionHeader.as_posix() + ' found ' + str(runResult.stdout))
versionFoundRaw = re.sub(
r'^.*BOOST_LIB_VERSION "([0-9_]*)".*$', r'\1', str(runResult.stdout).rstrip()
).replace('_', '.')
versionFound = packaging.version.parse(versionFoundRaw)
if (versionFound > maxBoostVersionFound):
maxBoostVersionFound = versionFound
log.debug('Parsed as ' + str(versionFound) + '. (Highest found = ' + str(maxBoostVersionFound) + ')')
#
# The Boost version.hpp configuration header file gives two constants for defining the version of Boost
# installed:
#
# BOOST_VERSION is a pure numeric value:
# BOOST_VERSION % 100 is the patch level
# BOOST_VERSION / 100 % 1000 is the minor version
# BOOST_VERSION / 100000 is the major version
# So, eg, for Boost 1.79.0 (= 1.079.00), BOOST_VERSION = 107900
#
# BOOST_LIB_VERSION is a string value with underscores instead of dots (and without the patch level if that's
# 0). So, eg for Boost 1.79.0, BOOST_LIB_VERSION = "1_79" (and for 1.23.45 it would be "1_23_45")
#
# We use BOOST_LIB_VERSION as it's easy to convert it to a version number that Python can understand
#
log.debug(
'Max version of Boost found: ' + str(maxBoostVersionFound) + '. Need >= ' + str(minBoostVersion) +
', otherwise will try to install ' + str(boostVersionToInstall)
)
if (maxBoostVersionFound < minBoostVersion):
log.info(
'Installing Boost ' + str(boostVersionToInstall) + ' as newest version found was ' +
str(maxBoostVersionFound)
)
#
# To manually install the latest version of Boost from source, first we uninstall any old version
# installed via the distro (eg, on Ubuntu, this means 'sudo apt remove libboost-all-dev'), then we follow
# the instructions at https://www.boost.org/more/getting_started/index.html.
#
# It's best to leave the default install location: headers in the 'boost' subdirectory of
# /usr/local/include and libraries in /usr/local/lib.
#
# (It might initially _seem_ a good idea to put things in the same place as the distro packages, ie
# running './bootstrap.sh --prefix=/usr' to put headers in /usr/include and libraries in /usr/lib.
# However, this will mean that Meson cannot find the manually-installed Boost, even though it can find
# distro-installed Boost in this location.) So, eg, for Boost 1.80 on Linux, this means the following
# in the shell:
#
# cd ~
# mkdir ~/boost-tmp
# cd ~/boost-tmp
# wget https://boostorg.jfrog.io/artifactory/main/release/1.80.0/source/boost_1_80_0.tar.bz2
# tar --bzip2 -xf boost_1_80_0.tar.bz2
# cd boost_1_80_0
# ./bootstrap.sh
# sudo ./b2 install
# cd ~
# sudo rm -rf ~/boost-tmp
#
# We can handle the temporary directory stuff more elegantly (ie RAII style) in Python however
#
with tempfile.TemporaryDirectory(ignore_cleanup_errors = True) as tmpDirName:
previousWorkingDirectory = pathlib.Path.cwd().as_posix()
os.chdir(tmpDirName)
log.debug('Working directory now ' + pathlib.Path.cwd().as_posix())
boostUnderscoreName = 'boost_' + str(boostVersionToInstall).replace('.', '_')
downloadFile(
'https://boostorg.jfrog.io/artifactory/main/release/' + str(boostVersionToInstall) + '/source/' +
boostUnderscoreName + '.tar.bz2'
)
log.debug('Boost download completed')
shutil.unpack_archive(boostUnderscoreName + '.tar.bz2')
log.debug('Boost archive extracted')
os.chdir(boostUnderscoreName)
log.debug('Working directory now ' + pathlib.Path.cwd().as_posix())
abortOnRunFail(subprocess.run(['./bootstrap.sh']))
log.debug('Boost bootstrap finished')
abortOnRunFail(subprocess.run(['sudo', './b2', 'install']))
log.debug('Boost install finished')
os.chdir(previousWorkingDirectory)
log.debug('Working directory now ' + pathlib.Path.cwd().as_posix() + '. Removing ' + tmpDirName)
#
# The only issue with the RAII approach to removing the temporary directory is that some of the files
# inside it will be owned by root, so there will be a permissions error when Python attempts to delete
# the directory tree. Fixing the permissions beforehand is a slightly clunky way around this.
#
abortOnRunFail(
subprocess.run(
['sudo', 'chmod', '--recursive', 'a+rw', tmpDirName]
)
)
#
# Almost everything else we can rely on the distro packages. A few notes:
# - We need CMake even for the Meson build because meson uses CMake as one of its library-finding tools
# - The pandoc package helps us create man pages from markdown input
# - The build-essential and debhelper packages are for creating Debian packages
# - The rpm and rpmlint packages are for creating RPM packages
#
log.info('Ensuring other libraries and frameworks are installed')
abortOnRunFail(subprocess.run(['sudo', 'apt-get', 'update']))
abortOnRunFail(
subprocess.run(
['sudo', 'apt', 'install', '-y', 'build-essential',
'cmake',
'coreutils',
'debhelper',
'git',
'libqt5multimedia5-plugins',
'libqt5sql5-psql',
'libqt5sql5-sqlite',
'libqt5svg5-dev',
'libxalan-c-dev',
'libxerces-c-dev',
'lintian',
'meson',
'ninja-build',
'pandoc',
'python3',
'qtbase5-dev',
'qtmultimedia5-dev',
'qttools5-dev',
'qttools5-dev-tools',
'rpm',
'rpmlint']
)
)
#
# Ubuntu 20.04 packages only have Meson 0.53.2, and we need 0.60.0 or later. In this case it means we have to
# install Meson via pip, which is not ideal on Linux.
#
# Specifically, as explained at https://mesonbuild.com/Getting-meson.html#installing-meson-with-pip, although
# using the pip3 install gets a newer version, we have to do the pip install as root (which is normally not
# recommended). If we don't do this, then running `meson install` (or even `sudo meson install`) will barf on
# Linux (because we need to be able to install files into system directories).
#
# So, where a sufficiently recent version of Meson is available in the distro packages (eg
# `sudo apt install meson` on Ubuntu etc) it is much better to install this. Installing via pip is a last
# resort.
#
# The distro ID we get from 'lsb_release -is' will be 'Ubuntu' for all the variants of Ubuntu (eg including
# Kubuntu). Not sure what happens on derivatives such as Linux Mint though.
#
distroName = str(
abortOnRunFail(subprocess.run(['lsb_release', '-is'], encoding = "utf-8", capture_output = True)).stdout
).rstrip()
log.debug('Linux distro: ' + distroName)
if ('Ubuntu' == distroName):
ubuntuRelease = str(
abortOnRunFail(subprocess.run(['lsb_release', '-rs'], encoding = "utf-8", capture_output = True)).stdout
).rstrip()
log.debug('Ubuntu release: ' + ubuntuRelease)
if (Decimal(ubuntuRelease) < Decimal('22.04')):
log.info('Installing newer version of Meson the hard way')
abortOnRunFail(subprocess.run(['sudo', 'apt', 'remove', '-y', 'meson']))
abortOnRunFail(subprocess.run(['sudo', 'pip3', 'install', 'meson']))
#-----------------------------------------------------------------------------------------------------------------
#--------------------------------------------- Windows Dependencies ----------------------------------------------
#-----------------------------------------------------------------------------------------------------------------
case 'Windows':
log.debug('Windows')
#
# First thing is to detect whether we're in the MSYS2 environment, and, if so, whether we're in the right
# version of it.
#
# We take the existence of an executable `uname` in the path as a pretty good indicator that we're in MSYS2
# or similar environment). Then the result of running that should tell us if we're in the 32-bit version of
# MSYS2. (See comment below on why we don't yet support the 64-bit version, though I'm sure we'll fix this one
# day.)
#
exe_uname = shutil.which('uname')
if (exe_uname is None or exe_uname == ''):
log.critical('Cannot find uname. This script needs to be run under MSYS2 - see https://www.msys2.org/')
exit(1)
# We could just run uname without the -a option, but the latter gives some useful diagnostics to log
unameResult = str(
abortOnRunFail(subprocess.run([exe_uname, '-a'], encoding = "utf-8", capture_output = True)).stdout
).rstrip()
log.debug('Running uname -a gives ' + unameResult)
# Output from `uname -a` will be of the form
# MINGW64_NT-10.0-19044 Matt-Virt-Win 3.4.3.x86_64 2023-01-11 20:20 UTC x86_64 Msys
# We just need the bit before the first underscore, eg
# MINGW64
terminalVersion = unameResult.split(sep='_', maxsplit=1)[0]
if (terminalVersion != 'MINGW32'):
# One day we'll try to get the 64-bit build working on Windows. I think it's just the packaging step that's
# the problem. For now, it's easier to insist on 32-bit at set-up. (Obviously 32-bit apps run just fine on
# 64-bit Windows. I don't think there would be any noticeable difference to the end user in having a 64-bit
# version of the app.)
log.critical('Running in ' + terminalVersion + ' but need to run in MINGW32 (ie 32-bit build environment)')
exit(1)
log.info('Ensuring required libraries and frameworks are installed')
#
# Before we install packages, we want to make sure the MSYS2 installation itself is up-to-date, otherwise you
# can hit problems
#
# pacman -S -y should download a fresh copy of the master package database
# pacman -S -u should upgrades all currently-installed packages that are out-of-date
#
abortOnRunFail(subprocess.run(['pacman', '-S', '-y', '--noconfirm']))
abortOnRunFail(subprocess.run(['pacman', '-S', '-u', '--noconfirm']))
#
# We'd normally want to go with the 64-bit versions of things (x86_64) but AIUI it's a bit hard to handle this
# in the NSIS installer, so we the 32-bit versions (i686).
#
# We _could_ just invoke pacman once with the list of everything we want to install. However, this can make
# debugging a bit harder when there is a pacman problem, because it doesn't always give the most explanatory
# error messages. So we loop round and install one thing at a time.
#
arch = 'i686'
installList = ['base-devel',
'cmake',
'coreutils',
'doxygen',
'gcc',
'git',
'mingw-w64-' + arch + '-boost',
'mingw-w64-' + arch + '-cmake',
'mingw-w64-' + arch + '-libbacktrace',
'mingw-w64-' + arch + '-meson',
'mingw-w64-' + arch + '-nsis',
'mingw-w64-' + arch + '-qt5',
'mingw-w64-' + arch + '-toolchain',
'mingw-w64-' + arch + '-xalan-c',
'mingw-w64-' + arch + '-xerces-c']
for packageToInstall in installList:
log.debug('Installing ' + packageToInstall)
abortOnRunFail(
subprocess.run(
['pacman', '-S', '--needed', '--noconfirm', packageToInstall]
)
)
#
# Download NSIS plugins
#
# In theory we can use RAII here, eg:
#
# with tempfile.TemporaryDirectory(ignore_cleanup_errors = True) as tmpDirName:
# previousWorkingDirectory = pathlib.Path.cwd().as_posix()
# os.chdir(tmpDirName)
# ...
# os.chdir(previousWorkingDirectory)
#
# However, in practice, this gets messy when there is an error (eg download fails) because Windows doesn't like
# deleting files or directories that are in use. So, in the event of the script needing to terminate early,
# you get loads of errors, up to and including "maximum recursion depth exceeded" which rather mask whatever
# the original problem was.
#
tmpDirName = tempfile.mkdtemp()
previousWorkingDirectory = pathlib.Path.cwd().as_posix()
os.chdir(tmpDirName)
downloadFile('https://nsis.sourceforge.io/mediawiki/images/a/af/Locate.zip')
shutil.unpack_archive('Locate.zip', 'Locate')
downloadFile('https://nsis.sourceforge.io/mediawiki/images/7/76/Nsislog.zip')
shutil.unpack_archive('Nsislog.zip', 'Nsislog')
copyFilesToDir(['Locate/Include/Locate.nsh'], '/mingw32/share/nsis/Include/')
copyFilesToDir(['Locate/Plugin/locate.dll',
'Nsislog/plugin/nsislog.dll'],'/mingw32/share/nsis/Plugins/ansi/')
os.chdir(previousWorkingDirectory)
shutil.rmtree(tmpDirName, ignore_errors=False)
#-----------------------------------------------------------------------------------------------------------------
#---------------------------------------------- Mac OS Dependencies ----------------------------------------------
#-----------------------------------------------------------------------------------------------------------------
case 'Darwin':
log.debug('Mac')
#
# We install most of the Mac dependencies via Homebrew (https://brew.sh/) using the `brew` command below.
# However, as at 2023-12-01, Homebrew has stopped supplying a package for Xalan-C. So, we install that using
# MacPorts (https://ports.macports.org/), which provides the `port` command.
#
# Note that MacPorts (port) requires sudo but Homebrew (brew) does not. Perhaps more importantly, they two
# package managers install things to different locations:
# - Homebrew packages are installed under /usr/local/Cellar/ with symlinks in /usr/local/opt/
# - MacPorts packages are installed under /opt/local
# This means we need to have both directories in the include path when we come to compile. Thankfully, both
# CMake and Meson take care of finding a library automatically once given its name.
#
#
# Installing Homebrew is, in theory, somewhat easier and more self-contained than MacPorts as you just run the
# following:
# /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
# In practice, invoking that command from this script is a bit fiddly to get right. For the moment, we simply
# assume Homebrew is already installed (because it is on the GitHub actions).
#
#
# We install as many of our dependencies as possible with with Homebrew, and do this first, because some of
# these packages will also be needed for the installation of MacPorts to work.
#
# We could make this list shorter if we wanted as, eg, installing Xalan-C will cause Xerces-C to be installed
# too (as the former depends on the latter). However, I think it's clearer to explicitly list all the direct
# dependencies (eg we do make calls directly into Xerces).
#
# For the moment, we install Qt 5 (= 5.15.7), as there are code changes required to use Qt 6
#
# .:TBD:. Installing Boost here doesn't seem to give us libboost_stacktrace_backtrace
# Also, trying to use the "--cc=clang" option to install boost gives an error ("Error: boost: no bottle
# available!") For the moment, we're just using Boost header files on Mac though, so this should be
# OK.
#
# We install the tree command here as, although it's not needed to do the build itself, it's useful for
# diagnosing certain build problems (eg to see what changes certain parts of the build have made to the build
# directory tree) when the build is running as a GitHub action.
#
installList = ['llvm',
'gcc',
'cmake',
'coreutils',
'boost',
'doxygen',
'git',
'meson',
'ninja',
'pandoc',
'tree',
'qt@5',
# 'xalan-c',
'xerces-c']
for packageToInstall in installList:
log.debug('Installing ' + packageToInstall + ' via Homebrew')
abortOnRunFail(subprocess.run(['brew', 'install', packageToInstall]))
#
# By default, even once Qt5 is installed, Meson will not find it
#
# See https://stackoverflow.com/questions/29431882/get-qt5-up-and-running-on-a-new-mac for suggestion to do
# the following to "symlink the various Qt5 binaries and libraries into your /usr/local/bin and /usr/local/lib
# directories".
#
# Additionally, per lengthy discussion at https://github.com/Homebrew/legacy-homebrew/issues/29938, it seems
# we might also need either:
# ln -s /usr/local/Cellar/qt5/5.15.7/mkspecs /usr/local/mkspecs
# ln -s /usr/local/Cellar/qt5/5.15.7/plugins /usr/local/plugins
# or:
# export PATH=/usr/local/opt/qt5/bin:$PATH
# The former gives permission errors, so we do the latter in mac.yml
#
abortOnRunFail(subprocess.run(['brew', 'link', '--force', 'qt5']))
#
# In theory, we can now install MacPorts. However, I didn't manage to get the following working. The
# configure script complains about the lack of /usr/local/.//mkspecs/macx-clang. So, for now, we comment this
# bit out and install MacPorts for GitHub actions via the mac.yml script.
#
# This is a source install - per instructions at https://guide.macports.org/#installing.macports.source. In
# principle, we could install a precompiled binary, but it's a bit painful to do programatically as even to
# download the right package you have to know not just the the Darwin version of MacOS you are running, but
# also its "release name" (aka "friendly name"). See
# https://apple.stackexchange.com/questions/333452/how-can-i-find-the-friendly-name-of-the-operating-system-from-the-shell-term
# for various ways to do this if we had to, though we might just as easily copy the info
# from https://en.wikipedia.org/wiki/MacOS#Timeline_of_releases
#
## log.debug('Installing MacPorts')
## abortOnRunFail(subprocess.run(['curl', '-O', 'https://distfiles.macports.org/MacPorts/MacPorts-2.8.1.tar.bz2']))
## abortOnRunFail(subprocess.run(['tar', 'xf', 'MacPorts-2.8.1.tar.bz2']))
## abortOnRunFail(subprocess.run(['cd', 'MacPorts-2.8.1/']))
## abortOnRunFail(subprocess.run(['./configure']))
## abortOnRunFail(subprocess.run(['make']))
## abortOnRunFail(subprocess.run(['sudo', 'make', 'install']))
## abortOnRunFail(subprocess.run(['export', 'PATH=/opt/local/bin:/opt/local/sbin:$PATH']))
# Now install Xalan-C via MacPorts
log.debug('Installing xalanc via MacPorts')
abortOnRunFail(subprocess.run(['sudo', 'port', 'install', 'xalanc', 'configure.compiler=clang']))
#
# dmgbuild is a Python package that provides a command line tool to create macOS disk images (aka .dmg
# files) -- see https://dmgbuild.readthedocs.io/en/latest/
#
# Note that we install with the [badge_icons] extra so we can use the badge_icon setting (see
# https://dmgbuild.readthedocs.io/en/latest/settings.html#badge_icon)
#
abortOnRunFail(subprocess.run(['pip3', 'install', 'dmgbuild[badge_icons]']))
case _:
log.critical('Unrecognised platform: ' + platform.system())
exit(1)
#--------------------------------------------------------------------------------------------------------------------
#------------------------------------------- Cross-platform Dependencies --------------------------------------------
#--------------------------------------------------------------------------------------------------------------------
#
# We use libbacktrace from https://github.com/ianlancetaylor/libbacktrace. It's not available as a Debian package
# and not any more included with GCC by default. It's not a large library so, unless and until we start using Conan,
# the easiest approach seems to be to bring it in as a Git submodule and compile from source.
#
ensureSubmodulesPresent()
log.info('Checking libbacktrace is built')
previousWorkingDirectory = pathlib.Path.cwd().as_posix()
backtraceDir = dir_gitSubmodules.joinpath('libbacktrace')
os.chdir(backtraceDir)
log.debug('Run configure and make in ' + backtraceDir.as_posix())
#
# We only want to configure and compile libbacktrace once, so we do it here rather than in Meson.build
#
# Libbacktrace uses autoconf/automake so it's relatively simple to build, but for a couple of gotchas
#
# Note that, although on Linux you can just invoke `./configure`, this doesn't work in the MSYS2 environment, so,
# knowing that 'configure' is a shell script, we invoke it as such. However, we must be careful to run it with the
# correct shell, specifically `sh` (aka dash on Linux) rather than `bash`. Otherwise, the Makefile it generates will
# not work properly, and we'll end up building a library with missing symbols that gives link errors on our own
# executables.
#
# (I haven't delved deeply into this but, confusingly, if you run `sh ./configure` it puts 'SHELL = /bin/bash' in the
# Makefile, whereas, if you run `bash ./configure`, it puts the line 'SHELL = /bin/sh' in the Makefile.)
#
abortOnRunFail(subprocess.run(['sh', './configure']))
abortOnRunFail(subprocess.run(['make']))
os.chdir(previousWorkingDirectory)
log.info('*** Finished checking / installing dependencies ***')
return
#-----------------------------------------------------------------------------------------------------------------------
# ./bt setup
#-----------------------------------------------------------------------------------------------------------------------
def doSetup(setupOption):
if (setupOption == 'all'):
installDependencies()
findMesonAndGit()
# If this is a git checkout then let's set up git with the project standards
if (dir_gitInfo.is_dir()):
log.info('Setting up ' + capitalisedProjectName + ' git preferences')
# Enforce indentation with spaces, not tabs.
abortOnRunFail(
subprocess.run(
[exe_git,
"config",
"--file", dir_gitInfo.joinpath('config').as_posix(),
"core.whitespace",
"tabwidth=3,tab-in-indent"],
capture_output=False
)
)
# Enable the standard pre-commit hook that warns you about whitespace errors
shutil.copy2(dir_gitInfo.joinpath('hooks/pre-commit.sample'),
dir_gitInfo.joinpath('hooks/pre-commit'))
ensureSubmodulesPresent()
# Check whether Meson build directory is already set up. (Although nothing bad happens, if you run setup twice,
# it complains and tells you to run configure.)
# Best clue that set-up has been run (rather than, say, user just created empty mbuild directory by hand) is the
# presence of meson-info/meson-info.json (which is created by setup for IDE integration -- see
# https://mesonbuild.com/IDE-integration.html#ide-integration)
runMesonSetup = True
warnAboutCurrentDirectory = False
if (dir_build.joinpath('meson-info/meson-info.json').is_file()):
log.info('Meson build directory ' + dir_build.as_posix() + ' appears to be already set up')
#
# You usually only need to reset things after you've done certain edits to defaults etc in meson.build. There
# are a whole bunch of things you can control with the 'meson configure' command, but it's simplest in some ways
# just to reset the build directory and rely on meson setup picking up defaults from meson.build.
#
# Note that we don't have to worry about this prompt appearing in a GitHub action, because we are always creating
# the mbuild directory for the first time when this script is run in such actions -- ie we should never reach this
# part of the code.
#
response = ""
while (response != 'y' and response != 'n'):
response = input('Do you want to completely reset the build directory? [y or n] ').lower()
if (response == 'n'):
runMesonSetup = False
else:
# It's very possible that the user's current working directory is mbuild. If so, we need to warn them and move
# up a directory (as 'meson setup' gets upset if current working directory does not exist).
log.info('Removing existing Meson build directory ' + dir_build.as_posix())
if (pathlib.Path.cwd().as_posix() == dir_build.as_posix()):
# We write a warning out here for completeness, but we really need to show it further down as it will have
# scrolled off the top of the terminal with all the output from 'meson setup'
log.warning('You are currently in the directory we are about to delete. ' +
'You will need to change directory!')
warnAboutCurrentDirectory = True
os.chdir(dir_base)
shutil.rmtree(dir_build)
if (runMesonSetup):
log.info('Setting up ' + dir_build.as_posix() + ' meson build directory')
# See https://mesonbuild.com/Commands.html#setup for all the optional parameters to meson setup
# Note that meson setup will create the build directory (along with various subdirectories)
abortOnRunFail(subprocess.run([exe_meson, "setup", dir_build.as_posix(), dir_base.as_posix()],
capture_output=False))
log.info('Finished setting up Meson build. Note that the warnings above about path separator and optimization ' +
'level are expected!')
if (warnAboutCurrentDirectory):
print("❗❗❗ Your current directory has been deleted! You need to run 'cd ../mbuild' ❗❗❗")
log.debug('Setup done')
print()
print('You can now build, test, install and run ' + capitalisedProjectName + ' with the following commands:')
print(' cd ' + os.path.relpath(dir_build))
print(' meson compile')
print(' meson test')
if (platform.system() == 'Linux'):
print(' sudo meson install')
else:
print(' meson install')
print(' ' + projectName)
return
#-----------------------------------------------------------------------------------------------------------------------
# ./bt package