328 lines
10 KiB
Python
328 lines
10 KiB
Python
#
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# __COPYRIGHT__
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""SCons.Tool.Packaging
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SCons Packaging Tool.
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"""
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
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import importlib
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from inspect import getfullargspec
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import SCons.Defaults
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import SCons.Environment
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from SCons.Errors import UserError, SConsEnvironmentError
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from SCons.Script import AddOption, GetOption
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from SCons.Util import is_List, make_path_relative
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from SCons.Variables import EnumVariable
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from SCons.Warnings import warn, SConsWarning
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__all__ = [
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'src_targz', 'src_tarbz2', 'src_tarxz', 'src_zip',
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'targz', 'tarbz2', 'tarxz', 'zip',
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'rpm', 'msi', 'ipk',
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]
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#
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# Utility and Builder function
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#
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def Tag(env, target, source, *more_tags, **kw_tags):
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""" Tag a file with the given arguments.
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Just sets the accordingly named attribute on the file object.
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TODO: FIXME
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"""
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if not target:
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target = source
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first_tag = None
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else:
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first_tag = source
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if first_tag:
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kw_tags[first_tag[0]] = ''
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if not kw_tags and not more_tags:
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raise UserError("No tags given.")
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# XXX: sanity checks
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for x in more_tags:
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kw_tags[x] = ''
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if not SCons.Util.is_List(target):
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target = [target]
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else:
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# hmm, sometimes the target list is a list of a list
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# make sure it is flattened prior to processing.
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# TODO: perhaps some bug ?!?
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target = env.Flatten(target)
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for t in target:
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for k, v in kw_tags.items():
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# all file tags have to start with PACKAGING_, so we can later
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# differentiate between "normal" object attributes and the
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# packaging attributes. As the user should not be bothered with
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# that, the prefix will be added here if missing.
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if not k.startswith('PACKAGING_'):
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k = 'PACKAGING_' + k
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t.Tag(k, v)
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def Package(env, target=None, source=None, **kw):
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""" Entry point for the package tool.
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"""
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# check if we need to find the source files ourselves
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if not source:
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source = env.FindInstalledFiles()
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if not source:
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raise UserError("No source for Package() given")
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# decide which types of packages shall be built. Can be defined through
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# four mechanisms: command line argument, keyword argument,
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# environment argument and default selection (zip or tar.gz) in that
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# order.
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try:
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kw['PACKAGETYPE'] = env['PACKAGETYPE']
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except KeyError:
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pass
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if not kw.get('PACKAGETYPE'):
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kw['PACKAGETYPE'] = GetOption('package_type')
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if kw['PACKAGETYPE'] is None:
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if 'Tar' in env['BUILDERS']:
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kw['PACKAGETYPE'] = 'targz'
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elif 'Zip' in env['BUILDERS']:
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kw['PACKAGETYPE'] = 'zip'
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else:
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raise UserError("No type for Package() given")
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packagetype = kw['PACKAGETYPE']
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if not is_List(packagetype):
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packagetype = packagetype.split(',')
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# load the needed packagers.
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def load_packager(pkgtype):
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try:
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# the specific packager is a relative import
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return importlib.import_module("." + pkgtype, __name__)
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except ImportError as e:
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raise SConsEnvironmentError("packager %s not available: %s"
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% (pkgtype, str(e)))
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packagers = [load_packager(p) for p in packagetype]
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# set up targets and the PACKAGEROOT
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try:
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# fill up the target list with a default target name until the
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# PACKAGETYPE list is of the same size as the target list.
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if not target:
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target = []
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size_diff = len(packagetype) - len(target)
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default_name = "%(NAME)s-%(VERSION)s"
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if size_diff > 0:
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default_target = default_name % kw
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target.extend([default_target] * size_diff)
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if 'PACKAGEROOT' not in kw:
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kw['PACKAGEROOT'] = default_name % kw
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except KeyError as e:
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raise UserError("Missing Packagetag '%s'" % e.args[0])
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# setup the source files
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source = env.arg2nodes(source, env.fs.Entry)
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# call the packager to setup the dependencies.
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targets = []
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try:
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for packager in packagers:
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t = [target.pop(0)]
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t = packager.package(env, t, source, **kw)
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targets.extend(t)
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assert len(target) == 0
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except KeyError as e:
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raise UserError("Missing Packagetag '%s' for %s packager"
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% (e.args[0], packager.__name__))
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except TypeError:
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# this exception means that a needed argument for the packager is
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# missing. As our packagers get their "tags" as named function
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# arguments we need to find out which one is missing.
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argspec = getfullargspec(packager.package)
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args = argspec.args
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if argspec.defaults:
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# throw away arguments with default values
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args = args[:-len(argspec.defaults)]
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args.remove('env')
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args.remove('target')
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args.remove('source')
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# now remove any args for which we have a value in kw.
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args = [x for x in args if x not in kw]
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if not args:
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raise # must be a different error, so re-raise
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elif len(args) == 1:
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raise UserError("Missing Packagetag '%s' for %s packager"
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% (args[0], packager.__name__))
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raise UserError("Missing Packagetags '%s' for %s packager"
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% (", ".join(args), packager.__name__))
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target = env.arg2nodes(target, env.fs.Entry)
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#XXX: target set above unused... what was the intent?
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targets.extend(env.Alias('package', targets))
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return targets
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#
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# SCons tool initialization functions
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#
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added = False
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def generate(env):
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global added
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if not added:
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added = True
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AddOption('--package-type',
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dest='package_type',
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default=None,
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type="string",
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action="store",
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help='The type of package to create.')
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try:
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env['BUILDERS']['Package']
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env['BUILDERS']['Tag']
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except KeyError:
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env['BUILDERS']['Package'] = Package
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env['BUILDERS']['Tag'] = Tag
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def exists(env):
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return 1
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# XXX
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def options(opts):
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opts.AddVariables(
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EnumVariable('PACKAGETYPE',
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'the type of package to create.',
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None, allowed_values=list(map( str, __all__ )),
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ignorecase=2
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)
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)
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#
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# Internal utility functions
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#
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def copy_attr(f1, f2):
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""" Copies the special packaging file attributes from f1 to f2.
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"""
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if f1._tags:
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pattrs = [
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tag
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for tag in f1._tags
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if not hasattr(f2, tag) and tag.startswith('PACKAGING_')
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]
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for attr in pattrs:
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f2.Tag(attr, f1.GetTag(attr))
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def putintopackageroot(target, source, env, pkgroot, honor_install_location=1):
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""" Copies all source files to the directory given in pkgroot.
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If honor_install_location is set and the copied source file has an
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PACKAGING_INSTALL_LOCATION attribute, the PACKAGING_INSTALL_LOCATION is
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used as the new name of the source file under pkgroot.
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The source file will not be copied if it is already under the the pkgroot
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directory.
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All attributes of the source file will be copied to the new file.
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Note:
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Uses CopyAs builder.
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"""
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# make sure the packageroot is a Dir object.
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if SCons.Util.is_String(pkgroot):
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pkgroot = env.Dir(pkgroot)
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if not SCons.Util.is_List(source):
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source = [source]
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new_source = []
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for file in source:
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if SCons.Util.is_String(file):
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file = env.File(file)
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if file.is_under(pkgroot):
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new_source.append(file)
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else:
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if file.GetTag('PACKAGING_INSTALL_LOCATION') and \
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honor_install_location:
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new_name = make_path_relative(file.GetTag('PACKAGING_INSTALL_LOCATION'))
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else:
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new_name = make_path_relative(file.get_path())
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new_file = pkgroot.File(new_name)
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new_file = env.CopyAs(new_file, file)[0]
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copy_attr(file, new_file)
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new_source.append(new_file)
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return target, new_source
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def stripinstallbuilder(target, source, env):
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""" Strips the install builder action from the source list and stores
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the final installation location as the "PACKAGING_INSTALL_LOCATION" of
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the source of the source file. This effectively removes the final installed
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files from the source list while remembering the installation location.
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It also warns about files which have no install builder attached.
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"""
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def has_no_install_location(file):
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return not (file.has_builder() and hasattr(file.builder, 'name')
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and file.builder.name in ["InstallBuilder", "InstallAsBuilder"])
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if len([src for src in source if has_no_install_location(src)]):
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warn(SConsWarning, "there are files to package which have no\
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InstallBuilder attached, this might lead to irreproducible packages")
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n_source = []
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for s in source:
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if has_no_install_location(s):
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n_source.append(s)
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else:
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for ss in s.sources:
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n_source.append(ss)
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copy_attr(s, ss)
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ss.Tag('PACKAGING_INSTALL_LOCATION', s.get_path())
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return target, n_source
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# Local Variables:
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# tab-width:4
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# indent-tabs-mode:nil
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# End:
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# vim: set expandtab tabstop=4 shiftwidth=4:
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