Mercurial > hg > PaInt
annotate paint/package.py @ 69:fea269259222
move comment to more appropriate place
author | Jeff Hammel <jhammel@mozilla.com> |
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date | Sat, 26 Jan 2013 00:00:56 -0800 |
parents | d001017d5870 |
children | da69d58f960d |
rev | line source |
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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 """ |
25 class for python package introspection. | |
26 constructor takes the package 'src' | |
27 """ | |
4 | 28 |
50 | 29 def __init__(self, src, verbose=True): |
63 | 30 """ |
31 - src : URL or filesystem path to the package | |
32 """ | |
4 | 33 self.src = src |
50 | 34 self.verbose = verbose |
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35 |
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36 # ephemeral data |
5 | 37 self._tmppath = None |
28 | 38 self._egg_info_path = None |
33 | 39 self._build_path = None |
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40 self._pkg_info_path = None |
5 | 41 |
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42 # package metadata provider |
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43 # TODO: this should be chooseable but currently the keys of the |
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44 # interfaces are not the same |
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45 self.package_info = info.EggInfo |
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46 |
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47 # TODO: list of temporary files/directories to be deleted |
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48 |
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49 def _log(self, message): |
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50 if self.verbose: |
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51 print '>>> %s' % message |
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52 |
34 | 53 def _path(self): |
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54 """filesystem path to package directory""" |
7 | 55 |
51 | 56 self._log(">>> _path:Getting path to package") |
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57 |
7 | 58 # return cached copy if it exists |
59 if self._tmppath: | |
60 return self._tmppath | |
61 | |
62 # fetch from the web if a URL | |
63 tmpfile = None | |
64 src = self.src | |
5 | 65 if utils.isURL(self.src): |
8 | 66 tmpfile = src = self.fetch() |
7 | 67 |
68 # unpack if an archive | |
28 | 69 if self._is_archive(src): |
8 | 70 try: |
37 | 71 self._unpack(src) |
8 | 72 finally: |
73 if tmpfile: | |
74 os.remove(tmpfile) | |
7 | 75 return self._tmppath |
76 | |
5 | 77 return self.src |
78 | |
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79 def fetch(self, filename=None): |
8 | 80 """fetch from remote source to a temporary file""" |
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81 if filename is None: |
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82 fd, filename = tempfile.mkstemp() |
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83 os.close(fd) |
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84 fp = file(filename, 'w') |
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85 resource = urllib2.urlopen(self.src) |
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86 fp.write(resource.read()) |
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87 fp.close() |
7 | 88 return filename |
89 | |
37 | 90 def _unpack(self, archive): |
7 | 91 """unpack the archive to a temporary destination""" |
92 # TODO: should handle zipfile additionally at least | |
93 # Ideally, this would be pluggable, etc | |
8 | 94 assert tarfile.is_tarfile(archive), "%s is not an archive" % self.src |
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95 tf = tarfile.TarFile.open(archive) |
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96 self._tmppath = tempfile.mkdtemp() |
19 | 97 members = tf.getmembers() |
98 | |
99 # cut off the top level directory | |
37 | 100 members = [i for i in members if os.path.sep in i.name] |
19 | 101 tld = set() |
102 for member in members: | |
103 directory, member.name = member.name.split(os.path.sep, 1) | |
104 tld.add(directory) | |
105 assert len(tld) == 1 | |
106 | |
107 # extract | |
108 for member in members: | |
109 tf.extract(member, path=self._tmppath) | |
110 tf.close() | |
7 | 111 |
28 | 112 def _is_archive(self, path): |
7 | 113 """returns if the filesystem path is an archive""" |
114 # TODO: should handle zipfile additionally at least | |
115 # Ideally, this would be pluggable, etc | |
116 return tarfile.is_tarfile(path) | |
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117 |
28 | 118 def _cleanup(self): |
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119 if self._tmppath: |
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120 shutil.rmtree(self._tmppath) |
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121 self._tmppath = None |
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122 |
65 | 123 __del__ = _cleanup |
11 | 124 |
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125 ### python-package-specific functionality |
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126 |
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127 def info(self): |
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128 """return info dictionary for package""" |
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129 self._log(">>> Getting the info") |
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130 return self.package_info(self._path())() |
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131 |
11 | 132 def dependencies(self): |
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133 return self.package_info(self._path()).dependencies() |
24 | 134 |
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135 def extension(self): |
35 | 136 """filename extension of the package""" |
137 | |
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138 print ">>> extension:Getting package" |
35 | 139 package = self.package() |
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140 print ">>> extension:package=%s" % package |
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141 |
35 | 142 # determine the extension (XXX hacky) |
143 extensions = ('.tar.gz', '.zip', '.tar.bz2') | |
144 for ext in extensions: | |
36 | 145 if package.endswith(ext): |
35 | 146 return ext |
147 | |
148 raise Exception("Extension %s not found: %s" % (extensions, package)) | |
149 | |
150 def package(self, destination=None): | |
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151 """ |
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152 repackage the package to ensure its actually in the right form |
34 | 153 and return the path to the destination |
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154 - destination: if given, path to put the build in |
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155 """ |
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156 |
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157 self._log("package: Getting package directory, destination=%s" % repr(destination)) |
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158 |
33 | 159 if self._build_path: |
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160 self._log("package: build_path already set: %s" % self._build_path) |
34 | 161 if destination: |
162 shutil.copy(self._build_path, destination) | |
163 return os.path.abspath(destination) | |
164 | |
165 # return cached copy | |
33 | 166 return self._build_path |
167 | |
34 | 168 path = self._path() |
169 dist = os.path.join(path, 'dist') | |
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170 self._log("package: dist directory: %s; (path=%s)" % (dist, path)) |
34 | 171 if os.path.exists(dist): |
172 shutil.rmtree(dist) | |
173 | |
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174 command = [sys.executable, 'setup.py', 'sdist'] |
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175 self._log("package: running: %s" % ' '.join(command)) |
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176 call(command, cwd=path) |
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177 self._log("package: done running setup.py dist") |
34 | 178 |
179 assert os.path.exists(dist) | |
180 contents = os.listdir(dist) | |
181 assert len(contents) == 1 | |
182 | |
183 self._build_path = os.path.join(dist, contents[0]) | |
184 | |
185 # destination | |
186 # use an evil recursive trick | |
187 if destination: | |
36 | 188 return self.package(destination=destination) |
34 | 189 |
190 return self._build_path | |
191 | |
24 | 192 def download(self, directory): |
193 """download a package and all its dependencies using pip""" | |
28 | 194 if not os.path.exists(directory): |
195 os.makedirs(directory) | |
196 assert os.path.isdir(directory) | |
197 pip.main(['install', '--download', directory, self.src]) | |
198 | |
199 def pypi(self, directory): | |
200 """ | |
201 download packages for a pypi directory structure | |
202 http://k0s.org/portfolio/pypi.html | |
203 """ | |
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204 if not os.path.exists(directory): |
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205 os.makedirs(directory) |
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206 assert os.path.isdir(directory) |
28 | 207 tempdir = tempfile.mkdtemp() |
208 try: | |
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209 self.download(tempdir) |
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210 files = os.listdir(tempdir) |
52 | 211 self._log(">>> Files: %s" % files) |
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212 for f in files: |
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213 |
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214 # full path |
47 | 215 src = os.path.join(tempdir, f) |
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216 |
35 | 217 # make a package of the thing |
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218 print ">>> pypi:Packaging %s" % src |
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219 package = Package(src) |
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220 print ">>> pypi:DONE packaging %s" % src |
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221 |
36 | 222 # get destination dirname, filename |
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223 print ">>> pypi:Getting PyPI path" |
36 | 224 dirname, filename = package.pypi_path() |
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225 print ">>> pypi:DONE PyPI path: %s/%s" % (dirname, filename) |
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226 |
36 | 227 # make the directory if it doesn't exist |
228 subdir = os.path.join(directory, dirname) | |
229 if not os.path.exists(subdir): | |
230 os.makedirs(subdir) | |
231 assert os.path.isdir(subdir) | |
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232 |
36 | 233 # move the file |
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234 print ">>> pypi:Moving to PyPI path %s/%s" % (subdir, filename) |
47 | 235 package.package(destination=os.path.join(subdir, filename)) |
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236 print ">>> Done with %s" % src |
28 | 237 finally: |
238 shutil.rmtree(tempdir) | |
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239 |
36 | 240 def pypi_path(self): |
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241 """ |
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242 returns subpath 2-tuple appropriate for pypi path structure: |
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243 http://k0s.org/portfolio/pypi.html |
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244 """ |
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245 print ">>> pypi_path:Getting info" |
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246 info = self.info() |
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247 print ">>> pypi_path:DONE getting info" |
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248 |
36 | 249 # determine the extension |
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250 print ">>> pypi_path:Getting extension" |
36 | 251 extension = self.extension() |
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252 print ">>> pypi_path:DONE Getting extension: %s" % extension |
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253 |
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254 # get the filename destination |
36 | 255 name = info['Name'] |
256 version = info['Version'] | |
257 filename = '%s-%s%s' % (name, version, extension) | |
258 return name, filename |