Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/setuptools/_distutils/archive_util.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 """distutils.archive_util |
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2 |
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3 Utility functions for creating archive files (tarballs, zip files, |
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4 that sort of thing).""" |
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5 |
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6 import os |
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7 from warnings import warn |
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8 import sys |
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9 |
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10 try: |
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11 import zipfile |
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12 except ImportError: |
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13 zipfile = None |
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14 |
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15 |
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16 from distutils.errors import DistutilsExecError |
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17 from distutils.spawn import spawn |
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18 from distutils.dir_util import mkpath |
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19 from distutils import log |
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20 |
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21 try: |
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22 from pwd import getpwnam |
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23 except ImportError: |
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24 getpwnam = None |
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25 |
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26 try: |
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27 from grp import getgrnam |
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28 except ImportError: |
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29 getgrnam = None |
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30 |
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31 def _get_gid(name): |
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32 """Returns a gid, given a group name.""" |
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33 if getgrnam is None or name is None: |
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34 return None |
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35 try: |
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36 result = getgrnam(name) |
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37 except KeyError: |
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38 result = None |
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39 if result is not None: |
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40 return result[2] |
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41 return None |
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42 |
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43 def _get_uid(name): |
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44 """Returns an uid, given a user name.""" |
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45 if getpwnam is None or name is None: |
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46 return None |
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47 try: |
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48 result = getpwnam(name) |
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49 except KeyError: |
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50 result = None |
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51 if result is not None: |
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52 return result[2] |
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53 return None |
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54 |
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55 def make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0, |
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56 owner=None, group=None): |
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57 """Create a (possibly compressed) tar file from all the files under |
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58 'base_dir'. |
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59 |
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60 'compress' must be "gzip" (the default), "bzip2", "xz", "compress", or |
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61 None. ("compress" will be deprecated in Python 3.2) |
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62 |
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63 'owner' and 'group' can be used to define an owner and a group for the |
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64 archive that is being built. If not provided, the current owner and group |
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65 will be used. |
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66 |
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67 The output tar file will be named 'base_dir' + ".tar", possibly plus |
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68 the appropriate compression extension (".gz", ".bz2", ".xz" or ".Z"). |
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69 |
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70 Returns the output filename. |
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71 """ |
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72 tar_compression = {'gzip': 'gz', 'bzip2': 'bz2', 'xz': 'xz', None: '', |
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73 'compress': ''} |
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74 compress_ext = {'gzip': '.gz', 'bzip2': '.bz2', 'xz': '.xz', |
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75 'compress': '.Z'} |
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76 |
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77 # flags for compression program, each element of list will be an argument |
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78 if compress is not None and compress not in compress_ext.keys(): |
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79 raise ValueError( |
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80 "bad value for 'compress': must be None, 'gzip', 'bzip2', " |
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81 "'xz' or 'compress'") |
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82 |
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83 archive_name = base_name + '.tar' |
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84 if compress != 'compress': |
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85 archive_name += compress_ext.get(compress, '') |
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86 |
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87 mkpath(os.path.dirname(archive_name), dry_run=dry_run) |
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88 |
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89 # creating the tarball |
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90 import tarfile # late import so Python build itself doesn't break |
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91 |
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92 log.info('Creating tar archive') |
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93 |
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94 uid = _get_uid(owner) |
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95 gid = _get_gid(group) |
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96 |
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97 def _set_uid_gid(tarinfo): |
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98 if gid is not None: |
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99 tarinfo.gid = gid |
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100 tarinfo.gname = group |
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101 if uid is not None: |
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102 tarinfo.uid = uid |
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103 tarinfo.uname = owner |
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104 return tarinfo |
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105 |
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106 if not dry_run: |
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107 tar = tarfile.open(archive_name, 'w|%s' % tar_compression[compress]) |
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108 try: |
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109 tar.add(base_dir, filter=_set_uid_gid) |
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110 finally: |
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111 tar.close() |
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112 |
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113 # compression using `compress` |
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114 if compress == 'compress': |
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115 warn("'compress' will be deprecated.", PendingDeprecationWarning) |
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116 # the option varies depending on the platform |
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117 compressed_name = archive_name + compress_ext[compress] |
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118 if sys.platform == 'win32': |
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119 cmd = [compress, archive_name, compressed_name] |
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120 else: |
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121 cmd = [compress, '-f', archive_name] |
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122 spawn(cmd, dry_run=dry_run) |
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123 return compressed_name |
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124 |
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125 return archive_name |
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126 |
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127 def make_zipfile(base_name, base_dir, verbose=0, dry_run=0): |
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128 """Create a zip file from all the files under 'base_dir'. |
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129 |
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130 The output zip file will be named 'base_name' + ".zip". Uses either the |
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131 "zipfile" Python module (if available) or the InfoZIP "zip" utility |
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132 (if installed and found on the default search path). If neither tool is |
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133 available, raises DistutilsExecError. Returns the name of the output zip |
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134 file. |
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135 """ |
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136 zip_filename = base_name + ".zip" |
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137 mkpath(os.path.dirname(zip_filename), dry_run=dry_run) |
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138 |
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139 # If zipfile module is not available, try spawning an external |
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140 # 'zip' command. |
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141 if zipfile is None: |
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142 if verbose: |
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143 zipoptions = "-r" |
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144 else: |
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145 zipoptions = "-rq" |
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146 |
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147 try: |
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148 spawn(["zip", zipoptions, zip_filename, base_dir], |
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149 dry_run=dry_run) |
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150 except DistutilsExecError: |
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151 # XXX really should distinguish between "couldn't find |
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152 # external 'zip' command" and "zip failed". |
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153 raise DistutilsExecError(("unable to create zip file '%s': " |
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154 "could neither import the 'zipfile' module nor " |
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155 "find a standalone zip utility") % zip_filename) |
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156 |
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157 else: |
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158 log.info("creating '%s' and adding '%s' to it", |
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159 zip_filename, base_dir) |
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160 |
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161 if not dry_run: |
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162 try: |
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163 zip = zipfile.ZipFile(zip_filename, "w", |
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164 compression=zipfile.ZIP_DEFLATED) |
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165 except RuntimeError: |
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166 zip = zipfile.ZipFile(zip_filename, "w", |
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167 compression=zipfile.ZIP_STORED) |
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168 |
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169 with zip: |
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170 if base_dir != os.curdir: |
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171 path = os.path.normpath(os.path.join(base_dir, '')) |
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172 zip.write(path, path) |
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173 log.info("adding '%s'", path) |
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174 for dirpath, dirnames, filenames in os.walk(base_dir): |
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175 for name in dirnames: |
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176 path = os.path.normpath(os.path.join(dirpath, name, '')) |
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177 zip.write(path, path) |
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178 log.info("adding '%s'", path) |
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179 for name in filenames: |
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180 path = os.path.normpath(os.path.join(dirpath, name)) |
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181 if os.path.isfile(path): |
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182 zip.write(path, path) |
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183 log.info("adding '%s'", path) |
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184 |
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185 return zip_filename |
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186 |
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187 ARCHIVE_FORMATS = { |
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188 'gztar': (make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"), |
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189 'bztar': (make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"), |
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190 'xztar': (make_tarball, [('compress', 'xz')], "xz'ed tar-file"), |
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191 'ztar': (make_tarball, [('compress', 'compress')], "compressed tar file"), |
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192 'tar': (make_tarball, [('compress', None)], "uncompressed tar file"), |
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193 'zip': (make_zipfile, [],"ZIP file") |
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194 } |
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195 |
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196 def check_archive_formats(formats): |
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197 """Returns the first format from the 'format' list that is unknown. |
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198 |
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199 If all formats are known, returns None |
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200 """ |
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201 for format in formats: |
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202 if format not in ARCHIVE_FORMATS: |
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203 return format |
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204 return None |
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205 |
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206 def make_archive(base_name, format, root_dir=None, base_dir=None, verbose=0, |
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207 dry_run=0, owner=None, group=None): |
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208 """Create an archive file (eg. zip or tar). |
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209 |
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210 'base_name' is the name of the file to create, minus any format-specific |
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211 extension; 'format' is the archive format: one of "zip", "tar", "gztar", |
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212 "bztar", "xztar", or "ztar". |
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213 |
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214 'root_dir' is a directory that will be the root directory of the |
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215 archive; ie. we typically chdir into 'root_dir' before creating the |
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216 archive. 'base_dir' is the directory where we start archiving from; |
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217 ie. 'base_dir' will be the common prefix of all files and |
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218 directories in the archive. 'root_dir' and 'base_dir' both default |
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219 to the current directory. Returns the name of the archive file. |
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220 |
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221 'owner' and 'group' are used when creating a tar archive. By default, |
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222 uses the current owner and group. |
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223 """ |
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224 save_cwd = os.getcwd() |
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225 if root_dir is not None: |
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226 log.debug("changing into '%s'", root_dir) |
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227 base_name = os.path.abspath(base_name) |
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228 if not dry_run: |
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229 os.chdir(root_dir) |
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230 |
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231 if base_dir is None: |
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232 base_dir = os.curdir |
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233 |
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234 kwargs = {'dry_run': dry_run} |
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235 |
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236 try: |
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237 format_info = ARCHIVE_FORMATS[format] |
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238 except KeyError: |
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239 raise ValueError("unknown archive format '%s'" % format) |
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240 |
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241 func = format_info[0] |
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242 for arg, val in format_info[1]: |
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243 kwargs[arg] = val |
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244 |
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245 if format != 'zip': |
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246 kwargs['owner'] = owner |
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247 kwargs['group'] = group |
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248 |
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249 try: |
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250 filename = func(base_name, base_dir, **kwargs) |
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251 finally: |
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252 if root_dir is not None: |
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253 log.debug("changing back to '%s'", save_cwd) |
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254 os.chdir(save_cwd) |
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255 |
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256 return filename |