WIP: restructure

A stupid attempt to reduce code duplication led me to believe that all
the scripts could use _a bit_ of refactoring.
This is going to be a major pain (factoring out all the things), which
I'll take gladly.
All the links and usage examples are broken right now, but nobody cares,
so whatevs.

1 files changed, 119 insertions, 0 deletions

diff --git a/project/ci/travis/boost.py b/project/ci/travis/boost.py
new file mode 100644
index 0000000..46ae96b
--- /dev/null
+++ b/project/ci/travis/boost.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+'''Download & build Boost on Travis.
+
+This is similar to build.py, but auto-fills some parameters for build.py from
+the Travis-defined environment variables.
+
+Boost is built in $HOME/boost.
+'''
+
+import argparse
+import logging
+import os
+import os.path
+import sys
+
+from project.boost.build import BoostVersion, main as build_main
+
+
+def _env(name):
+    if name not in os.environ:
+        raise RuntimeError(f'undefined environment variable: {name}')
+    return os.environ[name]
+
+
+def _check_travis():
+    if 'TRAVIS' not in os.environ:
+        raise RuntimeError('not running on Travis')
+
+
+def _get_build_dir():
+    return _env('HOME')
+
+
+def _get_boost_dir():
+    return os.path.join(_get_build_dir(), 'boost')
+
+
+def _get_boost_version():
+    return _env('travis_boost_version')
+
+
+def _get_configuration():
+    return _env('configuration')
+
+
+def _get_platform():
+    return _env('platform')
+
+
+def _setup_logging():
+    logging.basicConfig(
+        format='%(asctime)s | %(levelname)s | %(message)s',
+        level=logging.INFO)
+
+
+def _parse_args(argv=None):
+    if argv is None:
+        argv = sys.argv[1:]
+    logging.info('Command line arguments: %s', argv)
+
+    parser = argparse.ArgumentParser(
+        description=__doc__,
+        formatter_class=argparse.RawDescriptionHelpFormatter)
+    parser.add_argument('--link', metavar='LINKAGE', nargs='*',
+                        help='how the libraries are linked')
+    parser.add_argument('--runtime-link', metavar='LINKAGE',
+                        help='how the libraries link to the runtime')
+    parser.add_argument('b2_args', nargs='*', metavar='B2_ARG', default=[],
+                        help='additional b2 arguments, to be passed verbatim')
+    return parser.parse_args(argv)
+
+
+def build_travis(argv=None):
+    args = _parse_args(argv)
+    _check_travis()
+
+    version = BoostVersion.from_string(_get_boost_version())
+    travis_argv = [
+        'download',
+        '--unpack', _get_build_dir(),
+        '--', str(version)
+    ]
+    build_main(travis_argv)
+
+    unpacked_boost_dir = version.dir_path(_get_build_dir())
+    boost_dir = _get_boost_dir()
+    os.rename(unpacked_boost_dir, boost_dir)
+
+    travis_argv = [
+        'build',
+        '--configuration', _get_configuration(),
+        '--platform', _get_platform(),
+    ]
+    if args.link is not None:
+        travis_argv.append('--link')
+        travis_argv += args.link
+    if args.runtime_link is not None:
+        travis_argv += ['--runtime-link', args.runtime_link]
+    travis_argv += ['--', boost_dir]
+    build_main(travis_argv + args.b2_args)
+
+
+def main(argv=None):
+    _setup_logging()
+    try:
+        build_travis(argv)
+    except Exception as e:
+        logging.exception(e)
+        raise
+
+
+if __name__ == '__main__':
+    main()