Mercurial > hg > PaInt
annotate paint/package.py @ 82:6922c1d4f486
TODO
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Wed, 19 Jun 2013 22:38:21 -0700 |
| parents | 4446cba4cee6 |
| children | 7f442f585580 |
| rev | line source |
|---|---|
| 4 | 1 """ |
| 2 package model for python PAckage INTrospection | |
| 3 """ | |
| 4 | |
| 36 | 5 # TODO: use pkginfo.sdist more |
| 6 | |
| 57 | 7 import info |
| 7 | 8 import os |
| 28 | 9 import pip |
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10 import shutil |
| 19 | 11 import subprocess |
| 12 import sys | |
| 7 | 13 import tarfile |
| 5 | 14 import tempfile |
| 7 | 15 import urllib2 |
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16 import urlparse |
| 7 | 17 import utils |
| 5 | 18 |
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19 from subprocess import check_call as call |
| 19 | 20 |
| 10 | 21 __all__ = ['Package'] |
| 22 | |
| 4 | 23 class Package(object): |
| 33 | 24 """ |
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25 python package introspection. |
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26 invoked with the package source, 'src' |
| 33 | 27 """ |
| 4 | 28 |
| 50 | 29 def __init__(self, src, verbose=True): |
| 63 | 30 """ |
| 31 - src : URL or filesystem path to the package | |
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32 - verbose : show verbose output |
| 63 | 33 """ |
| 4 | 34 self.src = src |
| 50 | 35 self.verbose = verbose |
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36 |
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37 # ephemeral data |
| 5 | 38 self._tmppath = None |
| 28 | 39 self._egg_info_path = None |
| 33 | 40 self._build_path = None |
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41 self._pkg_info_path = None |
| 5 | 42 |
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43 # package metadata provider |
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44 # TODO: this should be chooseable but currently the keys of the |
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45 # interfaces are not the same |
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46 self.package_info = info.EggInfo |
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47 |
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48 # TODO: list of temporary files/directories to be deleted |
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49 |
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50 def _log(self, message): |
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51 if self.verbose: |
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52 print '>>> %s' % message |
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53 |
| 34 | 54 def _path(self): |
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55 """filesystem path to package directory""" |
| 7 | 56 |
| 51 | 57 self._log(">>> _path:Getting path to package") |
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58 |
| 7 | 59 # return cached copy if it exists |
| 60 if self._tmppath: | |
| 61 return self._tmppath | |
| 62 | |
| 63 # fetch from the web if a URL | |
| 64 tmpfile = None | |
| 65 src = self.src | |
| 5 | 66 if utils.isURL(self.src): |
| 8 | 67 tmpfile = src = self.fetch() |
| 7 | 68 |
| 69 # unpack if an archive | |
| 28 | 70 if self._is_archive(src): |
| 8 | 71 try: |
| 37 | 72 self._unpack(src) |
| 8 | 73 finally: |
| 74 if tmpfile: | |
| 75 os.remove(tmpfile) | |
| 7 | 76 return self._tmppath |
| 77 | |
| 5 | 78 return self.src |
| 79 | |
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80 def fetch(self, filename=None): |
| 8 | 81 """fetch from remote source to a temporary file""" |
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82 if filename is None: |
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83 fd, filename = tempfile.mkstemp() |
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84 os.close(fd) |
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85 fp = file(filename, 'w') |
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86 resource = urllib2.urlopen(self.src) |
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87 fp.write(resource.read()) |
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88 fp.close() |
| 7 | 89 return filename |
| 90 | |
| 37 | 91 def _unpack(self, archive): |
| 7 | 92 """unpack the archive to a temporary destination""" |
| 93 # TODO: should handle zipfile additionally at least | |
| 94 # Ideally, this would be pluggable, etc | |
| 8 | 95 assert tarfile.is_tarfile(archive), "%s is not an archive" % self.src |
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96 tf = tarfile.TarFile.open(archive) |
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97 self._tmppath = tempfile.mkdtemp() |
| 19 | 98 members = tf.getmembers() |
| 99 | |
| 100 # cut off the top level directory | |
| 37 | 101 members = [i for i in members if os.path.sep in i.name] |
| 19 | 102 tld = set() |
| 103 for member in members: | |
| 104 directory, member.name = member.name.split(os.path.sep, 1) | |
| 105 tld.add(directory) | |
| 106 assert len(tld) == 1 | |
| 107 | |
| 108 # extract | |
| 109 for member in members: | |
| 110 tf.extract(member, path=self._tmppath) | |
| 111 tf.close() | |
| 7 | 112 |
| 28 | 113 def _is_archive(self, path): |
| 7 | 114 """returns if the filesystem path is an archive""" |
| 115 # TODO: should handle zipfile additionally at least | |
| 116 # Ideally, this would be pluggable, etc | |
| 117 return tarfile.is_tarfile(path) | |
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118 |
| 28 | 119 def _cleanup(self): |
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120 if self._tmppath: |
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121 shutil.rmtree(self._tmppath) |
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122 self._tmppath = None |
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123 |
| 65 | 124 __del__ = _cleanup |
| 11 | 125 |
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126 ### python-package-specific functionality |
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127 |
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128 def info(self): |
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129 """return info dictionary for package""" |
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130 self._log(">>> Getting the info") |
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131 return self.package_info(self._path())() |
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132 |
| 11 | 133 def dependencies(self): |
| 78 | 134 """list dependencies of a package""" |
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135 return self.package_info(self._path()).dependencies() |
| 24 | 136 |
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137 def extension(self): |
| 35 | 138 """filename extension of the package""" |
| 139 | |
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140 print ">>> extension:Getting package" |
| 35 | 141 package = self.package() |
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142 print ">>> extension:package=%s" % package |
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143 |
| 35 | 144 # determine the extension (XXX hacky) |
| 145 extensions = ('.tar.gz', '.zip', '.tar.bz2') | |
| 146 for ext in extensions: | |
| 36 | 147 if package.endswith(ext): |
| 35 | 148 return ext |
| 149 | |
| 150 raise Exception("Extension %s not found: %s" % (extensions, package)) | |
| 151 | |
| 152 def package(self, destination=None): | |
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153 """ |
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154 repackage the package to ensure its actually in the right form |
| 34 | 155 and return the path to the destination |
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156 - destination: if given, path to put the build in |
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157 """ |
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158 |
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159 self._log("package: Getting package directory, destination=%s" % repr(destination)) |
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160 |
| 33 | 161 if self._build_path: |
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162 self._log("package: build_path already set: %s" % self._build_path) |
| 34 | 163 if destination: |
| 164 shutil.copy(self._build_path, destination) | |
| 165 return os.path.abspath(destination) | |
| 166 | |
| 167 # return cached copy | |
| 33 | 168 return self._build_path |
| 169 | |
| 34 | 170 path = self._path() |
| 171 dist = os.path.join(path, 'dist') | |
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172 self._log("package: dist directory: %s; (path=%s)" % (dist, path)) |
| 34 | 173 if os.path.exists(dist): |
| 174 shutil.rmtree(dist) | |
| 175 | |
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176 command = [sys.executable, 'setup.py', 'sdist'] |
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177 self._log("package: running: %s" % ' '.join(command)) |
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178 call(command, cwd=path) |
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179 self._log("package: done running setup.py dist") |
| 34 | 180 |
| 181 assert os.path.exists(dist) | |
| 182 contents = os.listdir(dist) | |
| 183 assert len(contents) == 1 | |
| 184 | |
| 185 self._build_path = os.path.join(dist, contents[0]) | |
| 186 | |
| 187 # destination | |
| 188 # use an evil recursive trick | |
| 189 if destination: | |
| 36 | 190 return self.package(destination=destination) |
| 34 | 191 |
| 192 return self._build_path | |
| 193 | |
| 24 | 194 def download(self, directory): |
| 195 """download a package and all its dependencies using pip""" | |
| 28 | 196 if not os.path.exists(directory): |
| 197 os.makedirs(directory) | |
| 198 assert os.path.isdir(directory) | |
| 199 pip.main(['install', '--download', directory, self.src]) | |
| 200 | |
| 201 def pypi(self, directory): | |
| 202 """ | |
| 203 download packages for a pypi directory structure | |
| 204 http://k0s.org/portfolio/pypi.html | |
| 205 """ | |
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206 if not os.path.exists(directory): |
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207 os.makedirs(directory) |
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208 assert os.path.isdir(directory) |
| 28 | 209 tempdir = tempfile.mkdtemp() |
| 210 try: | |
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211 self.download(tempdir) |
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212 files = os.listdir(tempdir) |
| 52 | 213 self._log(">>> Files: %s" % files) |
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214 for f in files: |
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215 |
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216 # full path |
| 47 | 217 src = os.path.join(tempdir, f) |
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218 |
| 35 | 219 # make a package of the thing |
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220 print ">>> pypi:Packaging %s" % src |
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221 package = Package(src) |
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222 print ">>> pypi:DONE packaging %s" % src |
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223 |
| 36 | 224 # get destination dirname, filename |
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225 print ">>> pypi:Getting PyPI path" |
| 36 | 226 dirname, filename = package.pypi_path() |
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227 print ">>> pypi:DONE PyPI path: %s/%s" % (dirname, filename) |
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228 |
| 36 | 229 # make the directory if it doesn't exist |
| 230 subdir = os.path.join(directory, dirname) | |
| 231 if not os.path.exists(subdir): | |
| 232 os.makedirs(subdir) | |
| 233 assert os.path.isdir(subdir) | |
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234 |
| 36 | 235 # move the file |
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236 print ">>> pypi:Moving to PyPI path %s/%s" % (subdir, filename) |
| 47 | 237 package.package(destination=os.path.join(subdir, filename)) |
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238 print ">>> Done with %s" % src |
| 28 | 239 finally: |
| 240 shutil.rmtree(tempdir) | |
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241 |
| 36 | 242 def pypi_path(self): |
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243 """ |
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244 returns subpath 2-tuple appropriate for pypi path structure: |
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245 http://k0s.org/portfolio/pypi.html |
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246 """ |
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247 self._log(">>> pypi_path:Getting info") |
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248 info = self.info() |
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249 self._log(">>> pypi_path:DONE getting info") |
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250 |
| 36 | 251 # determine the extension |
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252 self._log(">>> pypi_path:Getting extension") |
| 36 | 253 extension = self.extension() |
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254 self._log(">>> pypi_path:DONE Getting extension: %s" % extension) |
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255 |
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256 # get the filename destination |
| 36 | 257 name = info['Name'] |
| 258 version = info['Version'] | |
| 259 filename = '%s-%s%s' % (name, version, extension) | |
| 260 return name, filename | |
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261 |
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262 |
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263 class PackageSet(object): |
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264 """ |
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265 a group of packages |
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266 """ |
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267 |
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268 def __init__(self, *packages): |
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269 self.packages = [] |
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270 for package in packages: |
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271 self.add(package) |
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272 raise NotImplementedError |
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273 |
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274 def add(self, package): |
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275 """ |
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276 add a package to the instance. |
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277 If Package instance, add that, otherwise convert |
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278 """ |
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279 |
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280 __iadd__ = add |
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281 |
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282 def dependencies(self): |
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283 """return dependecies for each package""" |
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284 |
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285 def unroll_dependencies(self): |
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286 """unroll dependencies for a package set""" |