37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
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from pathlib import Path
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from doit.exceptions import TaskFailed
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from .task import FlowTask
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class BadAliasDepend ( Exception ): pass
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class Alias ( FlowTask ):
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@staticmethod
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def mkRule ( rule, depends=[] ):
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return Alias( rule, depends )
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def __init__ ( self, rule, depends, ):
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if len(depends) != 1:
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raise BadAliasDepend( 'Alias.__init__(): There must be exactly *one* dependency ({})' \
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.format( depends ))
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if not isinstance(depends[0],FlowTask):
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raise BadAliasDepend( 'Alias.__init__(): The dependency must be another *rule* ({})' \
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.format( depends[0] ))
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super().__init__( rule, [], depends )
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def __repr__ ( self ):
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return '<Alias "{}" for "{}">'.format( self.basename, self.depends[0].basename )
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def doTask ( self ):
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return True
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def create_doit_tasks ( self ):
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return { 'basename' : self.basename
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, 'actions' : [ self.doTask ]
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, 'doc' : 'Run {}.'.format( self )
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, 'targets' : self.targets
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, 'file_dep' : self.file_dep
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}
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