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annotate lib/python3.8/site-packages/setuptools/command/build_clib.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 import distutils.command.build_clib as orig
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2 from distutils.errors import DistutilsSetupError
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3 from distutils import log
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4 from setuptools.dep_util import newer_pairwise_group
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5
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6
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7 class build_clib(orig.build_clib):
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8 """
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9 Override the default build_clib behaviour to do the following:
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10
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11 1. Implement a rudimentary timestamp-based dependency system
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12 so 'compile()' doesn't run every time.
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13 2. Add more keys to the 'build_info' dictionary:
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14 * obj_deps - specify dependencies for each object compiled.
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15 this should be a dictionary mapping a key
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16 with the source filename to a list of
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17 dependencies. Use an empty string for global
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18 dependencies.
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19 * cflags - specify a list of additional flags to pass to
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20 the compiler.
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21 """
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22
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23 def build_libraries(self, libraries):
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24 for (lib_name, build_info) in libraries:
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25 sources = build_info.get('sources')
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26 if sources is None or not isinstance(sources, (list, tuple)):
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27 raise DistutilsSetupError(
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28 "in 'libraries' option (library '%s'), "
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29 "'sources' must be present and must be "
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30 "a list of source filenames" % lib_name)
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31 sources = list(sources)
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32
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33 log.info("building '%s' library", lib_name)
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34
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35 # Make sure everything is the correct type.
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36 # obj_deps should be a dictionary of keys as sources
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37 # and a list/tuple of files that are its dependencies.
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38 obj_deps = build_info.get('obj_deps', dict())
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39 if not isinstance(obj_deps, dict):
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40 raise DistutilsSetupError(
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41 "in 'libraries' option (library '%s'), "
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42 "'obj_deps' must be a dictionary of "
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43 "type 'source: list'" % lib_name)
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44 dependencies = []
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45
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46 # Get the global dependencies that are specified by the '' key.
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47 # These will go into every source's dependency list.
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48 global_deps = obj_deps.get('', list())
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49 if not isinstance(global_deps, (list, tuple)):
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50 raise DistutilsSetupError(
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51 "in 'libraries' option (library '%s'), "
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52 "'obj_deps' must be a dictionary of "
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53 "type 'source: list'" % lib_name)
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54
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55 # Build the list to be used by newer_pairwise_group
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56 # each source will be auto-added to its dependencies.
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57 for source in sources:
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58 src_deps = [source]
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59 src_deps.extend(global_deps)
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60 extra_deps = obj_deps.get(source, list())
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61 if not isinstance(extra_deps, (list, tuple)):
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62 raise DistutilsSetupError(
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63 "in 'libraries' option (library '%s'), "
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64 "'obj_deps' must be a dictionary of "
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65 "type 'source: list'" % lib_name)
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66 src_deps.extend(extra_deps)
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67 dependencies.append(src_deps)
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68
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69 expected_objects = self.compiler.object_filenames(
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70 sources,
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71 output_dir=self.build_temp,
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72 )
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73
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74 if (
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75 newer_pairwise_group(dependencies, expected_objects)
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76 != ([], [])
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77 ):
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78 # First, compile the source code to object files in the library
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79 # directory. (This should probably change to putting object
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80 # files in a temporary build directory.)
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81 macros = build_info.get('macros')
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82 include_dirs = build_info.get('include_dirs')
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83 cflags = build_info.get('cflags')
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84 self.compiler.compile(
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85 sources,
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86 output_dir=self.build_temp,
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87 macros=macros,
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88 include_dirs=include_dirs,
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89 extra_postargs=cflags,
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90 debug=self.debug
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91 )
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92
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93 # Now "link" the object files together into a static library.
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94 # (On Unix at least, this isn't really linking -- it just
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95 # builds an archive. Whatever.)
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96 self.compiler.create_static_lib(
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97 expected_objects,
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98 lib_name,
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99 output_dir=self.build_clib,
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100 debug=self.debug
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101 )