diff options
Diffstat (limited to 'boost/build/build.py')
| -rwxr-xr-x | boost/build/build.py | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/boost/build/build.py b/boost/build/build.py index bfb204b..4957e85 100755 --- a/boost/build/build.py +++ b/boost/build/build.py @@ -5,10 +5,24 @@ # For details, see https://github.com/egor-tensin/cmake-common. # Distributed under the MIT License. -# This script downloads and builds the Boost libraries. -# It's main utility is being able to download & unpack the Boost distribution -# archive in a cross-platform way + setting the correct --stagedir parameter -# value to avoid name clashes. +'''Download & build Boost. + +This script downloads and builds the Boost libraries. It's main purpose is to: +1) provide a cross-platform way to download & unpack the Boost distribution +archive, +2) set the correct --stagedir parameter value to avoid name clashes. + +Please pick a command below. You can execute `%(prog)s COMMAND --help` to view +its usage message. + +A simple usage example: + + $ %(prog)s download 1.71.0 + ... + + $ %(prog)s build -- boost_1_71_0/ --with-filesystem --with-program_options + ... +''' import abc import argparse @@ -123,13 +137,13 @@ def _parse_linkage(s): raise argparse.ArgumentTypeError(f'invalid linkage: {s}') -Version = namedtuple('Version', ['major', 'minor', 'patch']) +_Version = namedtuple('_Version', ['major', 'minor', 'patch']) @total_ordering class BoostVersion: def __init__(self, major, minor, patch): - self._impl = Version(major, minor, patch) + self._impl = _Version(major, minor, patch) @property def major(self): @@ -178,7 +192,7 @@ class BoostVersion: return f'{self.dir_name}{self.archive_ext}' def get_download_url(self): - if self._impl < Version(1, 63, 0): + if self._impl < _Version(1, 63, 0): return f'https://sourceforge.net/projects/boost/files/boost/{self}/{self.archive_name}/download' return f'https://dl.bintray.com/boostorg/release/{self}/source/{self.archive_name}' @@ -425,7 +439,10 @@ def _parse_args(argv=None): argv = sys.argv[1:] logging.info('Command line arguments: %s', argv) - parser = argparse.ArgumentParser() + parser = argparse.ArgumentParser( + description=__doc__, + formatter_class=argparse.RawDescriptionHelpFormatter) + subparsers = parser.add_subparsers(dest='command') download = subparsers.add_parser('download', help='download & bootstrap Boost') @@ -435,35 +452,35 @@ def _parse_args(argv=None): help='download directory (temporary file unless specified)') download.add_argument('--unpack', metavar='DIR', dest='unpack_dir', type=_parse_dir, default='.', - help='directory to unpack Boost to') + help='directory to unpack the archive to') download.add_argument('boost_version', metavar='VERSION', type=BoostVersion.from_string, help='Boost version (in the MAJOR.MINOR.PATCH format)') - build = subparsers.add_parser('build', help='build Boost libraries') + build = subparsers.add_parser('build', help='build the libraries') # These are used to put the built libraries into proper stage/ # subdirectories (to avoid name clashes). build.add_argument('--platform', metavar='PLATFORM', nargs='*', dest='platforms', default=[], type=_parse_platform, - help='target platform (e.g. x86/x64)') + help=f'target platform ({"/".join(map(str, Platform))})') build.add_argument('--configuration', metavar='CONFIGURATION', nargs='*', dest='configurations', default=[], type=_parse_configuration, - help='target configuration (e.g. Debug/Release)') + help=f'target configuration ({"/".join(map(str, Configuration))})') # This is needed because the default behaviour on Linux and Windows is # different: static & dynamic libs are built on Linux, but only static libs # are built on Windows by default. build.add_argument('--link', metavar='LINKAGE', nargs='*', default=[], type=_parse_linkage, - help='how the libraries are linked (i.e. static/shared)') + help=f'how the libraries are linked ({"/".join(map(str, Linkage))})') # This is used to omit runtime-link=static I'd have to otherwise use a lot, # plus the script validates the link= and runtime-link= combinations. build.add_argument('--runtime-link', metavar='LINKAGE', type=_parse_linkage, default=Linkage.STATIC, - help='how the libraries link to the runtime') + help=f'how the libraries link to the runtime ({"/".join(map(str, Linkage))})') build.add_argument('--build', metavar='DIR', dest='build_dir', type=_parse_dir, @@ -475,7 +492,10 @@ def _parse_args(argv=None): build.add_argument('b2_args', nargs='*', metavar='B2_ARG', default=[], help='additional b2 arguments, to be passed verbatim') - return parser.parse_args(argv) + args = parser.parse_args(argv) + if args.command is None: + parser.error("please specify a command") + return args def build(args): |