The Meson Build System
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210 lines
9.4 KiB
210 lines
9.4 KiB
#!/usr/bin/env python3 |
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# Copyright 2014-2016 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import sys, os |
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import pickle |
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import argparse |
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from . import coredata, mesonlib |
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from .coredata import build_types, warning_levels, libtypelist |
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parser = argparse.ArgumentParser() |
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parser.add_argument('-D', action='append', default=[], dest='sets', |
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help='Set an option to the given value.') |
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parser.add_argument('directory', nargs='*') |
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class ConfException(coredata.MesonException): |
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def __init__(self, *args, **kwargs): |
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super().__init__(*args, **kwargs) |
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class Conf: |
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def __init__(self, build_dir): |
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self.build_dir = build_dir |
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self.coredata_file = os.path.join(build_dir, 'meson-private/coredata.dat') |
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self.build_file = os.path.join(build_dir, 'meson-private/build.dat') |
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if not os.path.isfile(self.coredata_file) or not os.path.isfile(self.build_file): |
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raise ConfException('Directory %s does not seem to be a Meson build directory.' % build_dir) |
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self.coredata = pickle.load(open(self.coredata_file, 'rb')) |
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self.build = pickle.load(open(self.build_file, 'rb')) |
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if self.coredata.version != coredata.version: |
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raise ConfException('Version mismatch (%s vs %s)' % |
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(coredata.version, self.coredata.version)) |
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def save(self): |
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# Only called if something has changed so overwrite unconditionally. |
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pickle.dump(self.coredata, open(self.coredata_file, 'wb')) |
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# We don't write the build file because any changes to it |
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# are erased when Meson is executed the nex time, i.e. the next |
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# time Ninja is run. |
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def print_aligned(self, arr): |
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if len(arr) == 0: |
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return |
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titles = ['Option', 'Description', 'Current Value', ''] |
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longest_name = len(titles[0]) |
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longest_descr = len(titles[1]) |
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longest_value = len(titles[2]) |
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longest_possible_value = len(titles[3]) |
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for x in arr: |
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longest_name = max(longest_name, len(x[0])) |
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longest_descr = max(longest_descr, len(x[1])) |
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longest_value = max(longest_value, len(str(x[2]))) |
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longest_possible_value = max(longest_possible_value, len(x[3])) |
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if longest_possible_value > 0: |
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titles[3] = 'Possible Values' |
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print(' %s%s %s%s %s%s %s' % (titles[0], ' '*(longest_name - len(titles[0])), titles[1], ' '*(longest_descr - len(titles[1])), titles[2], ' '*(longest_value - len(titles[2])), titles[3])) |
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print(' %s%s %s%s %s%s %s' % ('-'*len(titles[0]), ' '*(longest_name - len(titles[0])), '-'*len(titles[1]), ' '*(longest_descr - len(titles[1])), '-'*len(titles[2]), ' '*(longest_value - len(titles[2])), '-'*len(titles[3]))) |
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for i in arr: |
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name = i[0] |
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descr = i[1] |
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value = i[2] |
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if isinstance(value, bool): |
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value = 'true' if value else 'false' |
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possible_values = i[3] |
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namepad = ' '*(longest_name - len(name)) |
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descrpad = ' '*(longest_descr - len(descr)) |
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valuepad = ' '*(longest_value - len(str(value))) |
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f = ' %s%s %s%s %s%s %s' % (name, namepad, descr, descrpad, value, valuepad, possible_values) |
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print(f) |
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def set_options(self, options): |
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for o in options: |
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if '=' not in o: |
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raise ConfException('Value "%s" not of type "a=b".' % o) |
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(k, v) = o.split('=', 1) |
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if self.coredata.is_builtin_option(k): |
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self.coredata.set_builtin_option(k, v) |
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elif k in self.coredata.user_options: |
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tgt = self.coredata.user_options[k] |
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tgt.set_value(v) |
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elif k in self.coredata.compiler_options: |
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tgt = self.coredata.compiler_options[k] |
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tgt.set_value(v) |
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elif k.endswith('linkargs'): |
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lang = k[:-8] |
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if not lang in self.coredata.external_link_args: |
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raise ConfException('Unknown language %s in linkargs.' % lang) |
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# TODO, currently split on spaces, make it so that user |
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# can pass in an array string. |
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newvalue = v.split() |
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self.coredata.external_link_args[lang] = newvalue |
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elif k.endswith('args'): |
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lang = k[:-4] |
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if not lang in self.coredata.external_args: |
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raise ConfException('Unknown language %s in compile args' % lang) |
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# TODO same fix as above |
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newvalue = v.split() |
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self.coredata.external_args[lang] = newvalue |
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else: |
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raise ConfException('Unknown option %s.' % k) |
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def print_conf(self): |
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print('Core properties:') |
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print(' Source dir', self.build.environment.source_dir) |
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print(' Build dir ', self.build.environment.build_dir) |
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print('') |
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print('Core options:') |
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carr = [] |
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booleans = '[true, false]' |
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carr.append(['buildtype', 'Build type', self.coredata.get_builtin_option('buildtype'), build_types]) |
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carr.append(['warning_level', 'Warning level', self.coredata.get_builtin_option('warning_level'), warning_levels]) |
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carr.append(['werror', 'Treat warnings as errors', self.coredata.get_builtin_option('werror'), booleans]) |
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carr.append(['strip', 'Strip on install', self.coredata.get_builtin_option('strip'), booleans]) |
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carr.append(['coverage', 'Coverage report', self.coredata.get_builtin_option('coverage'), booleans]) |
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carr.append(['use_pch', 'Precompiled headers', self.coredata.get_builtin_option('use_pch'), booleans]) |
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carr.append(['unity', 'Unity build', self.coredata.get_builtin_option('unity'), booleans]) |
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carr.append(['default_library', 'Default library type', self.coredata.get_builtin_option('default_library'), libtypelist]) |
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self.print_aligned(carr) |
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print('') |
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print('Compiler arguments:') |
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for (lang, args) in self.coredata.external_args.items(): |
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print(' ' + lang + 'args', str(args)) |
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print('') |
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print('Linker args:') |
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for (lang, args) in self.coredata.external_link_args.items(): |
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print(' ' + lang + 'linkargs', str(args)) |
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print('') |
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print('Compiler options:') |
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okeys = sorted(self.coredata.compiler_options.keys()) |
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if len(okeys) == 0: |
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print(' No compiler options\n') |
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else: |
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coarr = [] |
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for k in okeys: |
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o = self.coredata.compiler_options[k] |
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coarr.append([k, o.description, o.value, '']) |
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self.print_aligned(coarr) |
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print('') |
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print('Directories:') |
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parr = [] |
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parr.append(['prefix', 'Install prefix', self.coredata.get_builtin_option('prefix'), '']) |
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parr.append(['libdir', 'Library directory', self.coredata.get_builtin_option('libdir'), '']) |
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parr.append(['bindir', 'Binary directory', self.coredata.get_builtin_option('bindir'), '']) |
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parr.append(['includedir', 'Header directory', self.coredata.get_builtin_option('includedir'), '']) |
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parr.append(['datadir', 'Data directory', self.coredata.get_builtin_option('datadir'), '']) |
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parr.append(['mandir', 'Man page directory', self.coredata.get_builtin_option('mandir'), '']) |
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parr.append(['localedir', 'Locale file directory', self.coredata.get_builtin_option('localedir'), '']) |
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self.print_aligned(parr) |
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print('') |
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print('Project options:') |
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if len(self.coredata.user_options) == 0: |
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print(' This project does not have any options') |
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else: |
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options = self.coredata.user_options |
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keys = list(options.keys()) |
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keys.sort() |
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optarr = [] |
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for key in keys: |
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opt = options[key] |
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if (opt.choices is None) or (len(opt.choices) == 0): |
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# Zero length list or string |
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choices = ''; |
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else: |
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# A non zero length list or string, convert to string |
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choices = str(opt.choices); |
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optarr.append([key, opt.description, opt.value, choices]) |
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self.print_aligned(optarr) |
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def run(args): |
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args = mesonlib.expand_arguments(args) |
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if not args: |
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args = [os.getcwd()] |
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options = parser.parse_args(args) |
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if len(options.directory) > 1: |
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print('%s <build directory>' % args[0]) |
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print('If you omit the build directory, the current directory is substituted.') |
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return 1 |
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if len(options.directory) == 0: |
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builddir = os.getcwd() |
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else: |
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builddir = options.directory[0] |
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try: |
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c = Conf(builddir) |
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if len(options.sets) > 0: |
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c.set_options(options.sets) |
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c.save() |
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else: |
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c.print_conf() |
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except ConfException as e: |
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print('Meson configurator encountered an error:\n') |
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print(e) |
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return(1) |
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return 0 |
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if __name__ == '__main__': |
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sys.exit(run(sys.argv[1:]))
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