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66 lines
1.7 KiB
66 lines
1.7 KiB
6 years ago
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#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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# Michel Mooij, michel.mooij7@gmail.com
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from waflib import Utils
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from waflib import Errors
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def get_deps(bld, target):
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'''Returns a list of (nested) targets on which this target depends.
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:param bld: a *waf* build instance from the top level *wscript*
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:type bld: waflib.Build.BuildContext
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:param target: task name for which the dependencies should be returned
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:type target: str
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:returns: a list of task names on which the given target depends
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'''
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try:
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tgen = bld.get_tgen_by_name(target)
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except Errors.WafError:
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return []
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else:
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uses = Utils.to_list(getattr(tgen, 'use', []))
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deps = uses[:]
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for use in uses:
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deps += get_deps(bld, use)
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return list(set(deps))
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def get_tgens(bld, names):
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'''Returns a list of task generators based on the given list of task
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generator names.
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:param bld: a *waf* build instance from the top level *wscript*
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:type bld: waflib.Build.BuildContext
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:param names: list of task generator names
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:type names: list of str
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:returns: list of task generators
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'''
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tgens=[]
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for name in names:
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try:
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tgen = bld.get_tgen_by_name(name)
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except Errors.WafError:
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pass
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else:
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tgens.append(tgen)
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return list(set(tgens))
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def get_targets(bld):
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'''Returns a list of user specified build targets or None if no specific
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build targets has been selected using the *--targets=* command line option.
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:param bld: a *waf* build instance from the top level *wscript*.
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:type bld: waflib.Build.BuildContext
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:returns: a list of user specified target names (using --targets=x,y,z) or None
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'''
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if bld.targets == '':
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return None
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targets = bld.targets.split(',')
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for target in targets:
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targets += get_deps(bld, target)
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return targets
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