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83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
#! /usr/bin/env python
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# encoding: utf-8
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# Calle Rosenquist, 2017 (xbreak)
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"""
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Create task that copies source files to the associated build node.
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This is useful to e.g. construct a complete Python package so it can be unit tested
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without installation.
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Source files to be copied can be specified either in `buildcopy_source` attribute, or
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`source` attribute. If both are specified `buildcopy_source` has priority.
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Examples::
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def build(bld):
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bld(name = 'bar',
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features = 'py buildcopy',
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source = bld.path.ant_glob('src/bar/*.py'))
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bld(name = 'py baz',
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features = 'buildcopy',
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buildcopy_source = bld.path.ant_glob('src/bar/*.py') + ['src/bar/resource.txt'])
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"""
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import os, shutil
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from waflib import Errors, Task, TaskGen, Utils, Node
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@TaskGen.before_method('process_source')
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@TaskGen.feature('buildcopy')
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def make_buildcopy(self):
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"""
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Creates the buildcopy task.
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"""
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def to_src_nodes(lst):
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"""Find file nodes only in src, TaskGen.to_nodes will not work for this since it gives
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preference to nodes in build.
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"""
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if isinstance(lst, Node.Node):
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if not lst.is_src():
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raise Errors.WafError('buildcopy: node %s is not in src'%lst)
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if not os.path.isfile(lst.abspath()):
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raise Errors.WafError('buildcopy: Cannot copy directory %s (unsupported action)'%lst)
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return lst
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if isinstance(lst, str):
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lst = [x for x in Utils.split_path(lst) if x and x != '.']
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node = self.bld.path.get_src().search_node(lst)
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if node:
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if not os.path.isfile(node.abspath()):
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raise Errors.WafError('buildcopy: Cannot copy directory %s (unsupported action)'%node)
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return node
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node = self.bld.path.get_src().find_node(lst)
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if node:
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if not os.path.isfile(node.abspath()):
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raise Errors.WafError('buildcopy: Cannot copy directory %s (unsupported action)'%node)
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return node
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raise Errors.WafError('buildcopy: File not found in src: %s'%os.path.join(*lst))
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nodes = [ to_src_nodes(n) for n in getattr(self, 'buildcopy_source', getattr(self, 'source', [])) ]
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node_pairs = [(n, n.get_bld()) for n in nodes]
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self.create_task('buildcopy', [n[0] for n in node_pairs], [n[1] for n in node_pairs], node_pairs=node_pairs)
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class buildcopy(Task.Task):
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"""
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Copy for each pair `n` in `node_pairs`: n[0] -> n[1].
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Attribute `node_pairs` should contain a list of tuples describing source and target:
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node_pairs = [(in, out), ...]
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"""
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color = 'PINK'
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def keyword(self):
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return 'Copying'
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def run(self):
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for f,t in self.node_pairs:
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t.parent.mkdir()
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shutil.copy2(f.abspath(), t.abspath())
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