Mercurial > hg > PaInt
annotate paint/package.py @ 84:582ffe5e39a0
paint/package.py
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Tue, 17 Sep 2013 17:46:51 -0700 |
| parents | 7f442f585580 |
| children |
| 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 """ |
| 83 | 34 # TODO: directory of sources |
| 35 # e.g. http://hg.mozilla.org/mozilla-central/file/tip/testing/mozbase | |
| 4 | 36 self.src = src |
| 50 | 37 self.verbose = verbose |
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38 |
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39 # ephemeral data |
| 5 | 40 self._tmppath = None |
| 28 | 41 self._egg_info_path = None |
| 33 | 42 self._build_path = None |
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43 self._pkg_info_path = None |
| 5 | 44 |
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45 # package metadata provider |
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46 # TODO: this should be chooseable but currently the keys of the |
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47 # interfaces are not the same |
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48 self.package_info = info.EggInfo |
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49 |
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50 # TODO: list of temporary files/directories to be deleted |
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51 |
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52 def _log(self, message): |
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53 if self.verbose: |
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54 print '>>> %s' % message |
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55 |
| 34 | 56 def _path(self): |
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57 """filesystem path to package directory""" |
| 7 | 58 |
| 51 | 59 self._log(">>> _path:Getting path to package") |
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60 |
| 7 | 61 # return cached copy if it exists |
| 62 if self._tmppath: | |
| 63 return self._tmppath | |
| 64 | |
| 65 # fetch from the web if a URL | |
| 66 tmpfile = None | |
| 67 src = self.src | |
| 5 | 68 if utils.isURL(self.src): |
| 8 | 69 tmpfile = src = self.fetch() |
| 7 | 70 |
| 71 # unpack if an archive | |
| 28 | 72 if self._is_archive(src): |
| 8 | 73 try: |
| 37 | 74 self._unpack(src) |
| 8 | 75 finally: |
| 76 if tmpfile: | |
| 77 os.remove(tmpfile) | |
| 7 | 78 return self._tmppath |
| 79 | |
| 5 | 80 return self.src |
| 81 | |
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82 def fetch(self, filename=None): |
| 8 | 83 """fetch from remote source to a temporary file""" |
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84 if filename is None: |
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85 fd, filename = tempfile.mkstemp() |
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86 os.close(fd) |
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87 fp = file(filename, 'w') |
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88 resource = urllib2.urlopen(self.src) |
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89 fp.write(resource.read()) |
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90 fp.close() |
| 7 | 91 return filename |
| 92 | |
| 37 | 93 def _unpack(self, archive): |
| 7 | 94 """unpack the archive to a temporary destination""" |
| 95 # TODO: should handle zipfile additionally at least | |
| 96 # Ideally, this would be pluggable, etc | |
| 8 | 97 assert tarfile.is_tarfile(archive), "%s is not an archive" % self.src |
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98 tf = tarfile.TarFile.open(archive) |
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99 self._tmppath = tempfile.mkdtemp() |
| 19 | 100 members = tf.getmembers() |
| 101 | |
| 102 # cut off the top level directory | |
| 37 | 103 members = [i for i in members if os.path.sep in i.name] |
| 19 | 104 tld = set() |
| 105 for member in members: | |
| 106 directory, member.name = member.name.split(os.path.sep, 1) | |
| 107 tld.add(directory) | |
| 108 assert len(tld) == 1 | |
| 109 | |
| 110 # extract | |
| 111 for member in members: | |
| 112 tf.extract(member, path=self._tmppath) | |
| 113 tf.close() | |
| 7 | 114 |
| 28 | 115 def _is_archive(self, path): |
| 7 | 116 """returns if the filesystem path is an archive""" |
| 117 # TODO: should handle zipfile additionally at least | |
| 118 # Ideally, this would be pluggable, etc | |
| 84 | 119 return (not os.path.isdir(path)) and tarfile.is_tarfile(path) |
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120 |
| 28 | 121 def _cleanup(self): |
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122 if self._tmppath: |
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123 shutil.rmtree(self._tmppath) |
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124 self._tmppath = None |
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125 |
| 65 | 126 __del__ = _cleanup |
| 11 | 127 |
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128 ### python-package-specific functionality |
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129 |
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130 def info(self): |
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131 """return info dictionary for package""" |
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132 self._log(">>> Getting the info") |
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133 return self.package_info(self._path())() |
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134 |
| 11 | 135 def dependencies(self): |
| 78 | 136 """list dependencies of a package""" |
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137 return self.package_info(self._path()).dependencies() |
| 24 | 138 |
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139 def extension(self): |
| 35 | 140 """filename extension of the package""" |
| 141 | |
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142 print ">>> extension:Getting package" |
| 35 | 143 package = self.package() |
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144 print ">>> extension:package=%s" % package |
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145 |
| 35 | 146 # determine the extension (XXX hacky) |
| 147 extensions = ('.tar.gz', '.zip', '.tar.bz2') | |
| 148 for ext in extensions: | |
| 36 | 149 if package.endswith(ext): |
| 35 | 150 return ext |
| 151 | |
| 152 raise Exception("Extension %s not found: %s" % (extensions, package)) | |
| 153 | |
| 154 def package(self, destination=None): | |
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155 """ |
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156 repackage the package to ensure its actually in the right form |
| 34 | 157 and return the path to the destination |
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158 - destination: if given, path to put the build in |
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159 """ |
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160 |
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161 self._log("package: Getting package directory, destination=%s" % repr(destination)) |
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162 |
| 33 | 163 if self._build_path: |
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164 self._log("package: build_path already set: %s" % self._build_path) |
| 34 | 165 if destination: |
| 166 shutil.copy(self._build_path, destination) | |
| 167 return os.path.abspath(destination) | |
| 168 | |
| 169 # return cached copy | |
| 33 | 170 return self._build_path |
| 171 | |
| 34 | 172 path = self._path() |
| 173 dist = os.path.join(path, 'dist') | |
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174 self._log("package: dist directory: %s; (path=%s)" % (dist, path)) |
| 34 | 175 if os.path.exists(dist): |
| 176 shutil.rmtree(dist) | |
| 177 | |
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178 command = [sys.executable, 'setup.py', 'sdist'] |
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179 self._log("package: running: %s" % ' '.join(command)) |
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180 call(command, cwd=path) |
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181 self._log("package: done running setup.py dist") |
| 34 | 182 |
| 183 assert os.path.exists(dist) | |
| 184 contents = os.listdir(dist) | |
| 185 assert len(contents) == 1 | |
| 186 | |
| 187 self._build_path = os.path.join(dist, contents[0]) | |
| 188 | |
| 189 # destination | |
| 190 # use an evil recursive trick | |
| 191 if destination: | |
| 36 | 192 return self.package(destination=destination) |
| 34 | 193 |
| 194 return self._build_path | |
| 195 | |
| 24 | 196 def download(self, directory): |
| 197 """download a package and all its dependencies using pip""" | |
| 28 | 198 if not os.path.exists(directory): |
| 199 os.makedirs(directory) | |
| 200 assert os.path.isdir(directory) | |
| 201 pip.main(['install', '--download', directory, self.src]) | |
| 202 | |
| 203 def pypi(self, directory): | |
| 204 """ | |
| 205 download packages for a pypi directory structure | |
| 206 http://k0s.org/portfolio/pypi.html | |
| 207 """ | |
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208 if not os.path.exists(directory): |
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209 os.makedirs(directory) |
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210 assert os.path.isdir(directory) |
| 28 | 211 tempdir = tempfile.mkdtemp() |
| 212 try: | |
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213 self.download(tempdir) |
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214 files = os.listdir(tempdir) |
| 52 | 215 self._log(">>> Files: %s" % files) |
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216 for f in files: |
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217 |
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218 # full path |
| 47 | 219 src = os.path.join(tempdir, f) |
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220 |
| 35 | 221 # make a package of the thing |
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222 print ">>> pypi:Packaging %s" % src |
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223 package = Package(src) |
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224 print ">>> pypi:DONE packaging %s" % src |
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225 |
| 36 | 226 # get destination dirname, filename |
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227 print ">>> pypi:Getting PyPI path" |
| 36 | 228 dirname, filename = package.pypi_path() |
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229 print ">>> pypi:DONE PyPI path: %s/%s" % (dirname, filename) |
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230 |
| 36 | 231 # make the directory if it doesn't exist |
| 232 subdir = os.path.join(directory, dirname) | |
| 233 if not os.path.exists(subdir): | |
| 234 os.makedirs(subdir) | |
| 235 assert os.path.isdir(subdir) | |
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236 |
| 36 | 237 # move the file |
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238 print ">>> pypi:Moving to PyPI path %s/%s" % (subdir, filename) |
| 47 | 239 package.package(destination=os.path.join(subdir, filename)) |
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240 print ">>> Done with %s" % src |
| 28 | 241 finally: |
| 242 shutil.rmtree(tempdir) | |
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243 |
| 36 | 244 def pypi_path(self): |
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245 """ |
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246 returns subpath 2-tuple appropriate for pypi path structure: |
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247 http://k0s.org/portfolio/pypi.html |
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248 """ |
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249 self._log(">>> pypi_path:Getting info") |
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250 info = self.info() |
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251 self._log(">>> pypi_path:DONE getting info") |
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252 |
| 36 | 253 # determine the extension |
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254 self._log(">>> pypi_path:Getting extension") |
| 36 | 255 extension = self.extension() |
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256 self._log(">>> pypi_path:DONE Getting extension: %s" % extension) |
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257 |
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258 # get the filename destination |
| 36 | 259 name = info['Name'] |
| 260 version = info['Version'] | |
| 261 filename = '%s-%s%s' % (name, version, extension) | |
| 262 return name, filename | |
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263 |
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264 |
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265 class PackageSet(object): |
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266 """ |
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267 a group of packages |
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268 """ |
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269 |
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270 def __init__(self, *packages): |
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271 self.packages = [] |
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272 for package in packages: |
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273 self.add(package) |
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274 raise NotImplementedError |
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275 |
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276 def add(self, package): |
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277 """ |
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278 add a package to the instance. |
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279 If Package instance, add that, otherwise convert |
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280 """ |
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281 |
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282 __iadd__ = add |
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283 |
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284 def dependencies(self): |
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285 """return dependecies for each package""" |
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286 |
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287 def unroll_dependencies(self): |
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288 """unroll dependencies for a package set""" |