diff options
author | Adam Kocoloski <adam@cloudant.com> | 2010-08-23 13:51:50 -0400 |
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committer | Adam Kocoloski <adam@cloudant.com> | 2010-08-23 13:51:50 -0400 |
commit | 96a9fa9101e9ed50149d284ff32c361084223fa4 (patch) | |
tree | 51f7c69596df29a26beaf85a8f2376e271ade366 /couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py | |
parent | dd586292bdb6b6ea16b70351c2ca4d20793ac772 (diff) |
consolidate all couchjs stuff in one subdir
Diffstat (limited to 'couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py')
-rw-r--r-- | couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py b/couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py new file mode 100644 index 00000000..c8bfeb83 --- /dev/null +++ b/couchjs/scons/scons-local-2.0.1/SCons/Variables/PackageVariable.py @@ -0,0 +1,106 @@ +"""engine.SCons.Variables.PackageVariable + +This file defines the option type for SCons implementing 'package +activation'. + +To be used whenever a 'package' may be enabled/disabled and the +package path may be specified. + +Usage example: + + Examples: + x11=no (disables X11 support) + x11=yes (will search for the package installation dir) + x11=/usr/local/X11 (will check this path for existance) + + To replace autoconf's --with-xxx=yyy + + opts = Variables() + opts.Add(PackageVariable('x11', + 'use X11 installed here (yes = search some places', + 'yes')) + ... + if env['x11'] == True: + dir = ... search X11 in some standard places ... + env['x11'] = dir + if env['x11']: + ... build with x11 ... +""" + +# +# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY +# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# + +__revision__ = "src/engine/SCons/Variables/PackageVariable.py 5134 2010/08/16 23:02:40 bdeegan" + +__all__ = ['PackageVariable',] + +import SCons.Errors + +__enable_strings = ('1', 'yes', 'true', 'on', 'enable', 'search') +__disable_strings = ('0', 'no', 'false', 'off', 'disable') + +def _converter(val): + """ + """ + lval = val.lower() + if lval in __enable_strings: return True + if lval in __disable_strings: return False + #raise ValueError("Invalid value for boolean option: %s" % val) + return val + + +def _validator(key, val, env, searchfunc): + # NB: searchfunc is currenty undocumented and unsupported + """ + """ + # todo: write validator, check for path + import os + if env[key] is True: + if searchfunc: + env[key] = searchfunc(key, val) + elif env[key] and not os.path.exists(val): + raise SCons.Errors.UserError( + 'Path does not exist for option %s: %s' % (key, val)) + + +def PackageVariable(key, help, default, searchfunc=None): + # NB: searchfunc is currenty undocumented and unsupported + """ + The input parameters describe a 'package list' option, thus they + are returned with the correct converter and validator appended. The + result is usable for input to opts.Add() . + + A 'package list' option may either be 'all', 'none' or a list of + package names (seperated by space). + """ + help = '\n '.join( + (help, '( yes | no | /path/to/%s )' % key)) + return (key, help, default, + lambda k, v, e: _validator(k,v,e,searchfunc), + _converter) + +# Local Variables: +# tab-width:4 +# indent-tabs-mode:nil +# End: +# vim: set expandtab tabstop=4 shiftwidth=4: |