3 # WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
7 # Mathieu Courtois - EDF R&D, 2013 - http://www.code-aster.org
10 When a project has a lot of options the 'waf configure' command line can be
11 very long and it becomes a cause of error.
12 This tool provides a convenient way to load a set of configuration parameters
13 from a local file or from a remote url.
15 The configuration parameters are stored in a Python file that is imported as
16 an extra waf tool can be.
19 $ waf configure --use-config-dir=http://www.anywhere.org --use-config=myconf1 ...
21 The file 'myconf1' will be downloaded from 'http://www.anywhere.org'
22 (or 'http://www.anywhere.org/wafcfg').
23 If the files are available locally, it could be:
24 $ waf configure --use-config-dir=/somewhere/myconfigurations --use-config=myconf1 ...
26 The configuration of 'myconf1.py' is automatically loaded by calling
27 its 'configure' function. In this example, it defines environment variables and
31 self.env['CC'] = 'gcc-4.8'
32 self.env.append_value('LIBPATH', [...])
33 self.options.perlbinary = '/usr/local/bin/perl'
34 self.options.pyc = False
36 The corresponding command line should have been:
37 $ CC=gcc-4.8 LIBPATH=... waf configure --nopyc --with-perl-binary=/usr/local/bin/perl
40 This is an extra tool, not bundled with the default waf binary.
41 To add the use_config tool to the waf file:
42 $ ./waf-light --tools=use_config
44 When using this tool, the wscript will look like:
47 opt.load('use_config')
50 conf.load('use_config')
58 """Local repository containing additional Waf tools (plugins)"""
59 remote_repo = 'https://raw.githubusercontent.com/waf-project/waf/master/'
61 Remote directory containing downloadable waf tools. The missing tools can be downloaded by using::
63 $ waf configure --download
66 remote_locs = ['waflib/extras', 'waflib/Tools']
68 Remote directories for use with :py:const:`waflib.extras.use_config.remote_repo`
73 from urllib import request
75 from urllib import urlopen
77 urlopen = request.urlopen
80 from waflib import Errors, Context, Logs, Utils, Options, Configure
83 from urllib.parse import urlparse
85 from urlparse import urlparse
90 DEFAULT_DIR = 'wafcfg'
91 # add first the current wafcfg subdirectory
92 sys.path.append(osp.abspath(DEFAULT_DIR))
95 group = self.add_option_group('configure options')
96 group.add_option('--download', dest='download', default=False, action='store_true', help='try to download the tools if missing')
98 group.add_option('--use-config', action='store', default=None,
99 metavar='CFG', dest='use_config',
100 help='force the configuration parameters by importing '
101 'CFG.py. Several modules may be provided (comma '
103 group.add_option('--use-config-dir', action='store', default=DEFAULT_DIR,
104 metavar='CFG_DIR', dest='use_config_dir',
105 help='path or url where to find the configuration file')
107 def download_check(node):
109 Hook to check for the tools which are downloaded. Replace with your function if necessary.
114 def download_tool(tool, force=False, ctx=None):
116 Download a Waf tool from the remote repository defined in :py:const:`waflib.extras.use_config.remote_repo`::
118 $ waf configure --download
120 for x in Utils.to_list(remote_repo):
121 for sub in Utils.to_list(remote_locs):
122 url = '/'.join((x, sub, tool + '.py'))
126 if web.getcode() != 200:
128 except AttributeError:
131 # on python3 urlopen throws an exception
132 # python 2.3 does not have getcode and throws an exception to fail
135 tmp = ctx.root.make_node(os.sep.join((Context.waf_dir, 'waflib', 'extras', tool + '.py')))
136 tmp.write(web.read(), 'wb')
137 Logs.warn('Downloaded %s from %s', tool, url)
140 module = Context.load_tool(tool)
142 Logs.warn('The tool %s from %s is unusable', tool, url)
150 raise Errors.WafError('Could not load the Waf tool')
152 def load_tool(tool, tooldir=None, ctx=None, with_sys_path=True):
154 module = Context.load_tool_default(tool, tooldir, ctx, with_sys_path)
155 except ImportError as e:
156 if not ctx or not hasattr(Options.options, 'download'):
157 Logs.error('Could not load %r during options phase (download unavailable at this point)' % tool)
159 if Options.options.download:
160 module = download_tool(tool, ctx=ctx)
162 ctx.fatal('Could not load the Waf tool %r or download a suitable replacement from the repository (sys.path %r)\n%s' % (tool, sys.path, e))
164 ctx.fatal('Could not load the Waf tool %r from %r (try the --download option?):\n%s' % (tool, sys.path, e))
167 Context.load_tool_default = Context.load_tool
168 Context.load_tool = load_tool
169 Configure.download_tool = download_tool
173 use_cfg = opts.use_config
176 url = urlparse(opts.use_config_dir)
179 kwargs['download'] = True
180 kwargs['remote_url'] = url.geturl()
181 # search first with the exact url, else try with +'/wafcfg'
182 kwargs['remote_locs'] = ['', DEFAULT_DIR]
183 tooldir = url.geturl() + ' ' + DEFAULT_DIR
184 for cfg in use_cfg.split(','):
185 Logs.pprint('NORMAL', "Searching configuration '%s'..." % cfg)
186 self.load(cfg, tooldir=tooldir, **kwargs)
187 self.start_msg('Checking for configuration')
188 self.end_msg(use_cfg)