Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_vendor/pep517/build.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """Build a project using PEP 517 hooks. |
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2 """ |
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3 import argparse |
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4 import logging |
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5 import os |
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6 from pip._vendor import toml |
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7 import shutil |
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8 |
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9 from .envbuild import BuildEnvironment |
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10 from .wrappers import Pep517HookCaller |
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11 from .dirtools import tempdir, mkdir_p |
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12 from .compat import FileNotFoundError |
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13 |
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14 log = logging.getLogger(__name__) |
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15 |
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16 |
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17 def validate_system(system): |
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18 """ |
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19 Ensure build system has the requisite fields. |
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20 """ |
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21 required = {'requires', 'build-backend'} |
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22 if not (required <= set(system)): |
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23 message = "Missing required fields: {missing}".format( |
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24 missing=required-set(system), |
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25 ) |
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26 raise ValueError(message) |
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27 |
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28 |
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29 def load_system(source_dir): |
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30 """ |
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31 Load the build system from a source dir (pyproject.toml). |
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32 """ |
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33 pyproject = os.path.join(source_dir, 'pyproject.toml') |
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34 with open(pyproject) as f: |
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35 pyproject_data = toml.load(f) |
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36 return pyproject_data['build-system'] |
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37 |
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38 |
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39 def compat_system(source_dir): |
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40 """ |
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41 Given a source dir, attempt to get a build system backend |
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42 and requirements from pyproject.toml. Fallback to |
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43 setuptools but only if the file was not found or a build |
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44 system was not indicated. |
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45 """ |
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46 try: |
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47 system = load_system(source_dir) |
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48 except (FileNotFoundError, KeyError): |
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49 system = {} |
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50 system.setdefault( |
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51 'build-backend', |
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52 'setuptools.build_meta:__legacy__', |
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53 ) |
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54 system.setdefault('requires', ['setuptools', 'wheel']) |
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55 return system |
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56 |
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57 |
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58 def _do_build(hooks, env, dist, dest): |
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59 get_requires_name = 'get_requires_for_build_{dist}'.format(**locals()) |
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60 get_requires = getattr(hooks, get_requires_name) |
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61 reqs = get_requires({}) |
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62 log.info('Got build requires: %s', reqs) |
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63 |
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64 env.pip_install(reqs) |
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65 log.info('Installed dynamic build dependencies') |
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66 |
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67 with tempdir() as td: |
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68 log.info('Trying to build %s in %s', dist, td) |
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69 build_name = 'build_{dist}'.format(**locals()) |
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70 build = getattr(hooks, build_name) |
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71 filename = build(td, {}) |
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72 source = os.path.join(td, filename) |
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73 shutil.move(source, os.path.join(dest, os.path.basename(filename))) |
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74 |
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75 |
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76 def build(source_dir, dist, dest=None, system=None): |
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77 system = system or load_system(source_dir) |
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78 dest = os.path.join(source_dir, dest or 'dist') |
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79 mkdir_p(dest) |
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80 |
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81 validate_system(system) |
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82 hooks = Pep517HookCaller( |
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83 source_dir, system['build-backend'], system.get('backend-path') |
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84 ) |
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85 |
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86 with BuildEnvironment() as env: |
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87 env.pip_install(system['requires']) |
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88 _do_build(hooks, env, dist, dest) |
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89 |
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90 |
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91 parser = argparse.ArgumentParser() |
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92 parser.add_argument( |
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93 'source_dir', |
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94 help="A directory containing pyproject.toml", |
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95 ) |
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96 parser.add_argument( |
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97 '--binary', '-b', |
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98 action='store_true', |
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99 default=False, |
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100 ) |
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101 parser.add_argument( |
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102 '--source', '-s', |
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103 action='store_true', |
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104 default=False, |
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105 ) |
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106 parser.add_argument( |
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107 '--out-dir', '-o', |
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108 help="Destination in which to save the builds relative to source dir", |
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109 ) |
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110 |
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111 |
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112 def main(args): |
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113 # determine which dists to build |
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114 dists = list(filter(None, ( |
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115 'sdist' if args.source or not args.binary else None, |
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116 'wheel' if args.binary or not args.source else None, |
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117 ))) |
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118 |
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119 for dist in dists: |
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120 build(args.source_dir, dist, args.out_dir) |
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121 |
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122 |
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123 if __name__ == '__main__': |
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124 main(parser.parse_args()) |