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annotate lib/python3.8/site-packages/pip/_internal/vcs/git.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 # The following comment should be removed at some point in the future.
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2 # mypy: disallow-untyped-defs=False
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3
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4 from __future__ import absolute_import
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5
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6 import logging
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7 import os.path
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8 import re
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9
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10 from pip._vendor.packaging.version import parse as parse_version
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11 from pip._vendor.six.moves.urllib import parse as urllib_parse
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12 from pip._vendor.six.moves.urllib import request as urllib_request
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13
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14 from pip._internal.exceptions import BadCommand
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15 from pip._internal.utils.misc import display_path, hide_url
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16 from pip._internal.utils.subprocess import make_command
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17 from pip._internal.utils.temp_dir import TempDirectory
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18 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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19 from pip._internal.vcs.versioncontrol import (
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20 RemoteNotFoundError,
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21 VersionControl,
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22 find_path_to_setup_from_repo_root,
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23 vcs,
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24 )
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25
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26 if MYPY_CHECK_RUNNING:
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27 from typing import Optional, Tuple
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28 from pip._internal.utils.misc import HiddenText
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29 from pip._internal.vcs.versioncontrol import AuthInfo, RevOptions
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30
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31
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32 urlsplit = urllib_parse.urlsplit
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33 urlunsplit = urllib_parse.urlunsplit
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34
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35
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36 logger = logging.getLogger(__name__)
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37
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38
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39 HASH_REGEX = re.compile('^[a-fA-F0-9]{40}$')
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40
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41
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42 def looks_like_hash(sha):
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43 return bool(HASH_REGEX.match(sha))
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44
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45
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46 class Git(VersionControl):
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47 name = 'git'
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48 dirname = '.git'
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49 repo_name = 'clone'
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50 schemes = (
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51 'git', 'git+http', 'git+https', 'git+ssh', 'git+git', 'git+file',
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52 )
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53 # Prevent the user's environment variables from interfering with pip:
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54 # https://github.com/pypa/pip/issues/1130
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55 unset_environ = ('GIT_DIR', 'GIT_WORK_TREE')
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56 default_arg_rev = 'HEAD'
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57
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58 @staticmethod
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59 def get_base_rev_args(rev):
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60 return [rev]
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61
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62 def is_immutable_rev_checkout(self, url, dest):
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63 # type: (str, str) -> bool
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64 _, rev_options = self.get_url_rev_options(hide_url(url))
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65 if not rev_options.rev:
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66 return False
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67 if not self.is_commit_id_equal(dest, rev_options.rev):
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68 # the current commit is different from rev,
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69 # which means rev was something else than a commit hash
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70 return False
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71 # return False in the rare case rev is both a commit hash
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72 # and a tag or a branch; we don't want to cache in that case
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73 # because that branch/tag could point to something else in the future
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74 is_tag_or_branch = bool(
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75 self.get_revision_sha(dest, rev_options.rev)[0]
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76 )
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77 return not is_tag_or_branch
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78
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79 def get_git_version(self):
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80 VERSION_PFX = 'git version '
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81 version = self.run_command(['version'], show_stdout=False)
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82 if version.startswith(VERSION_PFX):
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83 version = version[len(VERSION_PFX):].split()[0]
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84 else:
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85 version = ''
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86 # get first 3 positions of the git version because
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87 # on windows it is x.y.z.windows.t, and this parses as
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88 # LegacyVersion which always smaller than a Version.
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89 version = '.'.join(version.split('.')[:3])
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90 return parse_version(version)
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91
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92 @classmethod
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93 def get_current_branch(cls, location):
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94 """
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95 Return the current branch, or None if HEAD isn't at a branch
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96 (e.g. detached HEAD).
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97 """
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98 # git-symbolic-ref exits with empty stdout if "HEAD" is a detached
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99 # HEAD rather than a symbolic ref. In addition, the -q causes the
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100 # command to exit with status code 1 instead of 128 in this case
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101 # and to suppress the message to stderr.
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102 args = ['symbolic-ref', '-q', 'HEAD']
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103 output = cls.run_command(
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104 args, extra_ok_returncodes=(1, ), show_stdout=False, cwd=location,
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105 )
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106 ref = output.strip()
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107
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108 if ref.startswith('refs/heads/'):
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109 return ref[len('refs/heads/'):]
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110
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111 return None
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112
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113 def export(self, location, url):
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114 # type: (str, HiddenText) -> None
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115 """Export the Git repository at the url to the destination location"""
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116 if not location.endswith('/'):
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117 location = location + '/'
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118
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119 with TempDirectory(kind="export") as temp_dir:
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120 self.unpack(temp_dir.path, url=url)
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121 self.run_command(
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122 ['checkout-index', '-a', '-f', '--prefix', location],
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123 show_stdout=False, cwd=temp_dir.path
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124 )
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125
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126 @classmethod
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127 def get_revision_sha(cls, dest, rev):
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128 """
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129 Return (sha_or_none, is_branch), where sha_or_none is a commit hash
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130 if the revision names a remote branch or tag, otherwise None.
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131
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132 Args:
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133 dest: the repository directory.
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134 rev: the revision name.
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135 """
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136 # Pass rev to pre-filter the list.
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137 output = cls.run_command(['show-ref', rev], cwd=dest,
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138 show_stdout=False, on_returncode='ignore')
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139 refs = {}
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140 for line in output.strip().splitlines():
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141 try:
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142 sha, ref = line.split()
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143 except ValueError:
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144 # Include the offending line to simplify troubleshooting if
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145 # this error ever occurs.
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146 raise ValueError('unexpected show-ref line: {!r}'.format(line))
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147
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148 refs[ref] = sha
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149
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150 branch_ref = 'refs/remotes/origin/{}'.format(rev)
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151 tag_ref = 'refs/tags/{}'.format(rev)
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152
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153 sha = refs.get(branch_ref)
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154 if sha is not None:
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155 return (sha, True)
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156
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157 sha = refs.get(tag_ref)
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158
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159 return (sha, False)
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160
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161 @classmethod
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162 def resolve_revision(cls, dest, url, rev_options):
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163 # type: (str, HiddenText, RevOptions) -> RevOptions
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164 """
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165 Resolve a revision to a new RevOptions object with the SHA1 of the
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166 branch, tag, or ref if found.
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167
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168 Args:
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169 rev_options: a RevOptions object.
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170 """
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171 rev = rev_options.arg_rev
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172 # The arg_rev property's implementation for Git ensures that the
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173 # rev return value is always non-None.
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174 assert rev is not None
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175
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176 sha, is_branch = cls.get_revision_sha(dest, rev)
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177
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178 if sha is not None:
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179 rev_options = rev_options.make_new(sha)
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180 rev_options.branch_name = rev if is_branch else None
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181
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182 return rev_options
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183
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184 # Do not show a warning for the common case of something that has
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185 # the form of a Git commit hash.
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186 if not looks_like_hash(rev):
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187 logger.warning(
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188 "Did not find branch or tag '%s', assuming revision or ref.",
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189 rev,
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190 )
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191
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192 if not rev.startswith('refs/'):
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193 return rev_options
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194
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195 # If it looks like a ref, we have to fetch it explicitly.
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196 cls.run_command(
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197 make_command('fetch', '-q', url, rev_options.to_args()),
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198 cwd=dest,
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199 )
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200 # Change the revision to the SHA of the ref we fetched
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201 sha = cls.get_revision(dest, rev='FETCH_HEAD')
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202 rev_options = rev_options.make_new(sha)
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203
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204 return rev_options
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205
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206 @classmethod
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207 def is_commit_id_equal(cls, dest, name):
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208 """
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209 Return whether the current commit hash equals the given name.
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210
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211 Args:
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212 dest: the repository directory.
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213 name: a string name.
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214 """
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215 if not name:
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216 # Then avoid an unnecessary subprocess call.
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217 return False
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218
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219 return cls.get_revision(dest) == name
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220
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221 def fetch_new(self, dest, url, rev_options):
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222 # type: (str, HiddenText, RevOptions) -> None
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223 rev_display = rev_options.to_display()
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224 logger.info('Cloning %s%s to %s', url, rev_display, display_path(dest))
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225 self.run_command(make_command('clone', '-q', url, dest))
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226
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227 if rev_options.rev:
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228 # Then a specific revision was requested.
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229 rev_options = self.resolve_revision(dest, url, rev_options)
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230 branch_name = getattr(rev_options, 'branch_name', None)
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231 if branch_name is None:
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232 # Only do a checkout if the current commit id doesn't match
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233 # the requested revision.
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234 if not self.is_commit_id_equal(dest, rev_options.rev):
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235 cmd_args = make_command(
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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236 'checkout', '-q', rev_options.to_args(),
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237 )
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238 self.run_command(cmd_args, cwd=dest)
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239 elif self.get_current_branch(dest) != branch_name:
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240 # Then a specific branch was requested, and that branch
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241 # is not yet checked out.
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242 track_branch = 'origin/{}'.format(branch_name)
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243 cmd_args = [
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244 'checkout', '-b', branch_name, '--track', track_branch,
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245 ]
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246 self.run_command(cmd_args, cwd=dest)
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247
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248 #: repo may contain submodules
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249 self.update_submodules(dest)
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250
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251 def switch(self, dest, url, rev_options):
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diff changeset
252 # type: (str, HiddenText, RevOptions) -> None
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parents:
diff changeset
253 self.run_command(
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guerler
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diff changeset
254 make_command('config', 'remote.origin.url', url),
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guerler
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diff changeset
255 cwd=dest,
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guerler
parents:
diff changeset
256 )
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guerler
parents:
diff changeset
257 cmd_args = make_command('checkout', '-q', rev_options.to_args())
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guerler
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diff changeset
258 self.run_command(cmd_args, cwd=dest)
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guerler
parents:
diff changeset
259
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guerler
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diff changeset
260 self.update_submodules(dest)
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guerler
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diff changeset
261
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diff changeset
262 def update(self, dest, url, rev_options):
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guerler
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diff changeset
263 # type: (str, HiddenText, RevOptions) -> None
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guerler
parents:
diff changeset
264 # First fetch changes from the default remote
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guerler
parents:
diff changeset
265 if self.get_git_version() >= parse_version('1.9.0'):
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guerler
parents:
diff changeset
266 # fetch tags in addition to everything else
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diff changeset
267 self.run_command(['fetch', '-q', '--tags'], cwd=dest)
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guerler
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diff changeset
268 else:
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269 self.run_command(['fetch', '-q'], cwd=dest)
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guerler
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diff changeset
270 # Then reset to wanted revision (maybe even origin/master)
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271 rev_options = self.resolve_revision(dest, url, rev_options)
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272 cmd_args = make_command('reset', '--hard', '-q', rev_options.to_args())
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273 self.run_command(cmd_args, cwd=dest)
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diff changeset
274 #: update submodules
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275 self.update_submodules(dest)
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276
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277 @classmethod
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278 def get_remote_url(cls, location):
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279 """
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280 Return URL of the first remote encountered.
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281
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282 Raises RemoteNotFoundError if the repository does not have a remote
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283 url configured.
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284 """
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285 # We need to pass 1 for extra_ok_returncodes since the command
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286 # exits with return code 1 if there are no matching lines.
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287 stdout = cls.run_command(
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288 ['config', '--get-regexp', r'remote\..*\.url'],
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289 extra_ok_returncodes=(1, ), show_stdout=False, cwd=location,
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290 )
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291 remotes = stdout.splitlines()
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guerler
parents:
diff changeset
292 try:
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293 found_remote = remotes[0]
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guerler
parents:
diff changeset
294 except IndexError:
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
295 raise RemoteNotFoundError
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guerler
parents:
diff changeset
296
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guerler
parents:
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297 for remote in remotes:
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diff changeset
298 if remote.startswith('remote.origin.url '):
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299 found_remote = remote
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guerler
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300 break
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301 url = found_remote.split(' ')[1]
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guerler
parents:
diff changeset
302 return url.strip()
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guerler
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303
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guerler
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304 @classmethod
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guerler
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305 def get_revision(cls, location, rev=None):
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guerler
parents:
diff changeset
306 if rev is None:
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guerler
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307 rev = 'HEAD'
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diff changeset
308 current_rev = cls.run_command(
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
309 ['rev-parse', rev], show_stdout=False, cwd=location,
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guerler
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diff changeset
310 )
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guerler
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diff changeset
311 return current_rev.strip()
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guerler
parents:
diff changeset
312
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guerler
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diff changeset
313 @classmethod
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
314 def get_subdirectory(cls, location):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
315 """
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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diff changeset
316 Return the path to setup.py, relative to the repo root.
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diff changeset
317 Return None if setup.py is in the repo root.
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diff changeset
318 """
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
319 # find the repo root
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diff changeset
320 git_dir = cls.run_command(
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
321 ['rev-parse', '--git-dir'],
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diff changeset
322 show_stdout=False, cwd=location).strip()
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
323 if not os.path.isabs(git_dir):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
324 git_dir = os.path.join(location, git_dir)
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guerler
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diff changeset
325 repo_root = os.path.abspath(os.path.join(git_dir, '..'))
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
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diff changeset
326 return find_path_to_setup_from_repo_root(location, repo_root)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
327
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
328 @classmethod
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
329 def get_url_rev_and_auth(cls, url):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
330 # type: (str) -> Tuple[str, Optional[str], AuthInfo]
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
331 """
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
332 Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
333 That's required because although they use SSH they sometimes don't
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
334 work with a ssh:// scheme (e.g. GitHub). But we need a scheme for
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
335 parsing. Hence we remove it again afterwards and return it as a stub.
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
336 """
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
337 # Works around an apparent Git bug
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
338 # (see https://article.gmane.org/gmane.comp.version-control.git/146500)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
339 scheme, netloc, path, query, fragment = urlsplit(url)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
340 if scheme.endswith('file'):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
341 initial_slashes = path[:-len(path.lstrip('/'))]
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
342 newpath = (
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
343 initial_slashes +
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
344 urllib_request.url2pathname(path)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
345 .replace('\\', '/').lstrip('/')
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
346 )
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
347 url = urlunsplit((scheme, netloc, newpath, query, fragment))
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
348 after_plus = scheme.find('+') + 1
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
349 url = scheme[:after_plus] + urlunsplit(
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
350 (scheme[after_plus:], netloc, newpath, query, fragment),
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
351 )
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
352
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
353 if '://' not in url:
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
354 assert 'file:' not in url
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
355 url = url.replace('git+', 'git+ssh://')
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
356 url, rev, user_pass = super(Git, cls).get_url_rev_and_auth(url)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
357 url = url.replace('ssh://', '')
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
358 else:
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
359 url, rev, user_pass = super(Git, cls).get_url_rev_and_auth(url)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
360
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
361 return url, rev, user_pass
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
362
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
363 @classmethod
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
364 def update_submodules(cls, location):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
365 if not os.path.exists(os.path.join(location, '.gitmodules')):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
366 return
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
367 cls.run_command(
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
368 ['submodule', 'update', '--init', '--recursive', '-q'],
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
369 cwd=location,
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
370 )
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
371
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
372 @classmethod
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
373 def controls_location(cls, location):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
374 if super(Git, cls).controls_location(location):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
375 return True
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
376 try:
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
377 r = cls.run_command(['rev-parse'],
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
378 cwd=location,
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guerler
parents:
diff changeset
379 show_stdout=False,
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guerler
parents:
diff changeset
380 on_returncode='ignore',
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guerler
parents:
diff changeset
381 log_failed_cmd=False)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
382 return not r
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
383 except BadCommand:
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
384 logger.debug("could not determine if %s is under git control "
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
385 "because git is not available", location)
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
386 return False
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
387
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
388
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
guerler
parents:
diff changeset
389 vcs.register(Git)