Mercurial > treepkg > treepkg
annotate treepkg/packager.py @ 53:74cd21b6400b
rename some variables from pkg_track to track
author | Bernhard Herzog <bh@intevation.de> |
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date | Tue, 03 Apr 2007 20:37:07 +0200 |
parents | 78cf5f6778ec |
children | b0014b8f6029 |
rev | line source |
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0 | 1 # Copyright (C) 2007 by Intevation GmbH |
2 # Authors: | |
3 # Bernhard Herzog <bh@intevation.de> | |
4 # | |
5 # This program is free software under the GPL (>=v2) | |
6 # Read the file COPYING coming with the software for details. | |
7 | |
8 """Classes to automatically build debian packages from subversion checkouts""" | |
9 | |
10 import os | |
11 import time | |
12 import re | |
13 import logging | |
14 import shutil | |
15 import traceback | |
16
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16 import datetime |
0 | 17 |
18 import util | |
19 import subversion | |
20 import run | |
16
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21 import status |
0 | 22 |
23 | |
24 def _filenameproperty(relative_dir): | |
25 def get(self): | |
26 return os.path.join(self.base_dir, relative_dir) | |
27 return property(get) | |
28 | |
29 | |
30 class SourcePackager(object): | |
31 | |
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32 # Derived classes must supply the package basename |
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33 pkg_basename = None |
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34 |
53
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35 def __init__(self, track, status, work_dir, src_dir, revision): |
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36 self.track = track |
0 | 37 self.status = status |
38 self.work_dir = work_dir | |
39 self.src_dir = src_dir | |
40 self.revision = revision | |
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41 assert(self.pkg_basename) |
0 | 42 |
43 def determine_package_version(self, directory): | |
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44 """Returns the version number of the new package as a string |
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45 |
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46 The directory parameter is the name of the directory containing |
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47 the newly exported sources. The sources were exported with the |
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48 export_sources method. |
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49 |
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50 The default implementation simply returns the revision converted |
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51 to a string. |
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52 """ |
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53 return str(self.revision) |
0 | 54 |
55 def export_sources(self): | |
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56 """Export the sources from the subversion working directory |
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57 |
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58 This method first exports the sources to a temporary directory |
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59 and then renames the directory. The new name is of the form |
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60 |
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61 <pkg_basename>-<version> |
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62 |
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63 Where pkg_basename is the value of self.pkg_basename and version |
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64 is the return value of the determine_package_version() method. |
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65 """ |
0 | 66 temp_dir = os.path.join(self.work_dir, "temp") |
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67 self.track.export_sources(temp_dir) |
0 | 68 |
69 pkgbaseversion = self.determine_package_version(temp_dir) | |
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70 pkgbasedir = os.path.join(self.work_dir, |
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71 self.pkg_basename + "-" + pkgbaseversion) |
0 | 72 |
73 os.rename(temp_dir, pkgbasedir) | |
74 return pkgbaseversion, pkgbasedir | |
75 | |
76 | |
77 def update_version_numbers(self, pkgbasedir): | |
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78 """Updates the version numbers in the code in pkgbasedir. |
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79 |
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80 The default implementation does nothing. Derived classes should |
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81 override this method if necessary. |
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82 """ |
0 | 83 |
84 def create_tarball(self, tarballname, workdir, basedir): | |
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85 """Creates a new tarball. |
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86 |
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87 Parameters: |
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88 |
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89 tarballname -- the filename of the new tarball |
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90 workdir -- The directory into which to change before running tar. |
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91 (actually this is done with GNUI tar's -C option) |
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92 basedir -- The basedirectory of the files that are packaged |
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93 into the tarfile. This should be a relative |
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94 filename directly in workdir. |
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95 """ |
0 | 96 logging.info("Creating tarball %r", tarballname) |
97 run.call(["tar", "czf", tarballname, "-C", workdir, basedir]) | |
98 | |
99 def copy_debian_directory(self, pkgbasedir, pkgbaseversion, changemsg): | |
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100 """Copies the debian directory and updates the copy's changelog |
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101 |
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102 Parameter: |
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103 pkgbasedir -- The directory holding the unpacked source package |
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104 pkgbaseversion -- The version to update the changelog to |
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105 changemsg -- The message for the changelog |
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106 |
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107 When determining the actual version for the new package, this |
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108 function looks at the previous version in the changelog. If it |
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109 has a prefix separated from the version number by a colon this |
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110 prefix is prepended to the pkgbaseversion parameter. Debian |
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111 uses such prefixes for the kde packages. |
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112 """ |
0 | 113 debian_dir = os.path.join(pkgbasedir, "debian") |
114 changelog = os.path.join(debian_dir, "changelog") | |
115 | |
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116 self.track.copy_debian_directory(debian_dir) |
0 | 117 |
118 logging.info("Updating %r", changelog) | |
119 oldversion = util.debian_changelog_version(changelog) | |
120 if ":" in oldversion: | |
121 oldversionprefix = oldversion.split(":")[0] + ":" | |
122 else: | |
123 oldversionprefix = "" | |
124 run.call(["debchange", "-c", changelog, | |
125 "-v", oldversionprefix + pkgbaseversion + "-kk1", | |
126 changemsg], | |
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127 env=self.track.debian_environment()) |
0 | 128 |
129 | |
130 def create_source_package(self, pkgbasedir, origtargz): | |
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131 """Creates a new source package from pkgbasedir and origtargz""" |
0 | 132 logging.info("Creating new source package") |
133 run.call(["dpkg-source", "-b", os.path.basename(pkgbasedir), | |
134 os.path.basename(origtargz)], | |
135 cwd=os.path.dirname(pkgbasedir), | |
136 suppress_output=True, | |
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137 env=self.track.debian_environment()) |
0 | 138 |
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139 def move_source_package(self, pkgbasename): |
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140 """Moves the new source package from the work_dir to the src_dir""" |
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141 logging.info("Moving source package to %r", self.src_dir) |
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142 util.ensure_directory(self.src_dir) |
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143 for filename in [filename for filename in os.listdir(self.work_dir) |
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144 if filename.startswith(pkgbasename)]: |
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145 os.rename(os.path.join(self.work_dir, filename), |
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146 os.path.join(self.src_dir, filename)) |
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147 |
0 | 148 def package(self): |
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149 """Creates a source package from a subversion checkout. |
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150 |
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151 After setting up the working directory, this method calls the |
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152 do_package method to do the actual packaging. Afterwards the |
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153 work directory is removed. |
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154 """ |
0 | 155 util.ensure_directory(self.work_dir) |
156 try: | |
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157 self.status.creating_source_package() |
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158 self.do_package() |
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159 self.status.source_package_created() |
0 | 160 finally: |
161 logging.info("Removing workdir %r", self.work_dir) | |
162 shutil.rmtree(self.work_dir) | |
163 | |
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164 def do_package(self): |
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165 """Does the work of creating a source package |
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166 This method must be overriden by derived classes. |
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167 |
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168 The method should do the work in self.work_dir. When the |
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169 package is done, the source package files should be in |
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170 self.src_dir. |
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171 """ |
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172 raise NotImplementedError |
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173 |
0 | 174 |
175 class BinaryPackager(object): | |
176 | |
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177 def __init__(self, track, status, binary_dir, dsc_file, logfile): |
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178 self.track = track |
0 | 179 self.status = status |
180 self.binary_dir = binary_dir | |
181 self.dsc_file = dsc_file | |
182 self.logfile = logfile | |
183 | |
184 def package(self): | |
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185 self.status.creating_binary_package() |
0 | 186 util.ensure_directory(self.binary_dir) |
187 logging.info("Building binary package; loging to %r", self.logfile) | |
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188 cmd = ["/usr/sbin/pbuilder", "build", |
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189 "--configfile", self.track.pbuilderrc, |
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190 "--logfile", self.logfile, |
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191 "--buildresult", self.binary_dir, self.dsc_file] |
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192 run.call(self.track.root_cmd + cmd, suppress_output=True) |
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193 self.status.binary_package_created() |
0 | 194 |
195 | |
196 class RevisionPackager(object): | |
197 | |
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198 source_packager_cls = SourcePackager |
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199 binary_packager_cls = BinaryPackager |
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200 |
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201 def __init__(self, track, revision): |
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202 self.track = track |
0 | 203 self.revision = revision |
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204 self.base_dir = self.track.pkg_dir_for_revision(self.revision, 1) |
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205 self.status = status.RevisionStatus(os.path.join(self.base_dir, |
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206 "status")) |
0 | 207 |
208 work_dir = _filenameproperty("work") | |
209 binary_dir = _filenameproperty("binary") | |
210 src_dir = _filenameproperty("src") | |
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211 build_log = _filenameproperty("build.log") |
0 | 212 |
213 def find_dsc_file(self): | |
214 for filename in os.listdir(self.src_dir): | |
215 if filename.endswith(".dsc"): | |
216 return os.path.join(self.src_dir, filename) | |
217 return None | |
218 | |
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219 def has_build_log(self): |
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220 return os.path.exists(self.build_log) |
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221 |
0 | 222 def package(self): |
223 try: | |
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224 util.ensure_directory(self.work_dir) |
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225 self.status.start = datetime.datetime.utcnow() |
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226 src_packager = self.source_packager_cls(self.track, self.status, |
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227 self.work_dir, self.src_dir, |
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228 self.revision) |
0 | 229 src_packager.package() |
230 | |
231 dsc_file = self.find_dsc_file() | |
232 if dsc_file is None: | |
233 raise RuntimeError("Cannot find dsc File in %r" % self.src_dir) | |
234 | |
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235 bin_packager = self.binary_packager_cls(self.track, self.status, |
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236 self.binary_dir, dsc_file, |
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237 self.build_log) |
0 | 238 bin_packager.package() |
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239 self.status.stop = datetime.datetime.utcnow() |
0 | 240 except: |
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241 self.status.error() |
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242 self.status.stop = datetime.datetime.utcnow() |
0 | 243 raise |
244 | |
245 def remove_package_dir(self): | |
246 logging.info("Removing pkgdir %r", self.base_dir) | |
247 shutil.rmtree(self.base_dir) | |
248 | |
249 | |
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250 class PackageTrack(object): |
0 | 251 |
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252 revision_packager_cls = RevisionPackager |
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253 |
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254 svn_external_subdirs = [] |
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255 |
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256 extra_config_desc = [] |
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257 |
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258 def __init__(self, name, base_dir, svn_url, root_cmd, pbuilderrc, deb_email, |
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259 deb_fullname, packager_class="treepkg.packager"): |
0 | 260 self.name = name |
261 self.base_dir = base_dir | |
262 self.svn_url = svn_url | |
263 self.root_cmd = root_cmd | |
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264 self.pbuilderrc = pbuilderrc |
0 | 265 self.deb_email = deb_email |
266 self.deb_fullname = deb_fullname | |
267 self.pkg_dir_template = "%(revision)d-%(increment)d" | |
268 self.pkg_dir_regex \ | |
269 = re.compile(r"(?P<revision>[0-9]+)-(?P<increment>[0-9]+)$") | |
270 | |
271 checkout_dir = _filenameproperty("checkout") | |
272 debian_dir = _filenameproperty("debian") | |
273 pkg_dir = _filenameproperty("pkg") | |
274 | |
275 def pkg_dir_for_revision(self, revision, increment): | |
276 return os.path.join(self.pkg_dir, | |
277 self.pkg_dir_template % locals()) | |
278 | |
279 def last_changed_revision(self): | |
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280 revisions = [] |
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281 for directory in [self.checkout_dir] + self.svn_external_subdirs: |
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282 directory = os.path.join(self.checkout_dir, directory) |
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283 revisions.append(subversion.last_changed_revision(directory)) |
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284 return max(revisions) |
0 | 285 |
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286 def get_revision_numbers(self): |
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287 """Returns a list of the numbers of the packaged revisions""" |
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288 revisions = [] |
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289 if os.path.exists(self.pkg_dir): |
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290 for filename in os.listdir(self.pkg_dir): |
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291 match = self.pkg_dir_regex.match(filename) |
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292 if match: |
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293 revisions.append(int(match.group("revision"))) |
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294 return revisions |
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295 |
0 | 296 def last_packaged_revision(self): |
297 """Returns the revision number of the highest packaged revision. | |
298 | |
299 If the revision cannot be determined because no already packaged | |
300 revisions can be found, the function returns -1. | |
301 """ | |
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302 return max([-1] + self.get_revision_numbers()) |
0 | 303 |
304 def debian_source(self): | |
305 return util.extract_value_for_key(open(os.path.join(self.debian_dir, | |
306 "control")), | |
307 "Source:") | |
308 | |
309 def update_checkout(self): | |
310 """Updates the working copy of self.svn_url in self.checkout_dir. | |
311 | |
312 If self.checkout_dir doesn't exist yet, self.svn_url is checked | |
313 out into that directory. | |
314 """ | |
315 localdir = self.checkout_dir | |
316 if os.path.exists(localdir): | |
317 logging.info("Updating the working copy in %r", localdir) | |
318 subversion.update(localdir) | |
319 else: | |
320 logging.info("The working copy in %r doesn't exist yet." | |
26 | 321 " Checking out from %r", localdir, |
0 | 322 self.svn_url) |
323 subversion.checkout(self.svn_url, localdir) | |
324 | |
325 def export_sources(self, to_dir): | |
326 logging.info("Exporting sources for tarball to %r", to_dir) | |
327 subversion.export(self.checkout_dir, to_dir) | |
328 # some versions of svn (notably version 1.4.2 shipped with etch) | |
329 # do export externals such as the admin subdirectory. We may | |
330 # have to do that in an extra step. | |
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331 for subdir in self.svn_external_subdirs: |
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332 absdir = os.path.join(to_dir, subdir) |
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333 if not os.path.isdir(absdir): |
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334 subversion.export(os.path.join(self.checkout_dir, subdir), |
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335 absdir) |
0 | 336 |
337 def copy_debian_directory(self, to_dir): | |
338 logging.info("Copying debian directory to %r", to_dir) | |
339 shutil.copytree(self.debian_dir, to_dir) | |
340 | |
341 def debian_environment(self): | |
342 """Returns the environment variables for the debian commands""" | |
343 env = os.environ.copy() | |
344 env["DEBFULLNAME"] = self.deb_fullname | |
345 env["DEBEMAIL"] = self.deb_email | |
346 return env | |
347 | |
348 def package_if_updated(self): | |
349 """Checks if the checkout changed and returns a new packager if so""" | |
350 self.update_checkout() | |
351 current_revision = self.last_changed_revision() | |
352 logging.info("New revision is %d", current_revision) | |
353 previous_revision = self.last_packaged_revision() | |
354 logging.info("Previously packaged revision was %d", previous_revision) | |
355 if current_revision > previous_revision: | |
356 logging.info("New revision is not packaged yet") | |
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357 return self.revision_packager_cls(self, current_revision) |
0 | 358 else: |
359 logging.info("New revision already packaged.") | |
360 | |
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361 def get_revisions(self): |
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362 """Returns RevisionPackager objects for each packaged revision""" |
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363 return [self.revision_packager_cls(self, revision) |
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364 for revision in self.get_revision_numbers()] |
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365 |
0 | 366 |
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367 def create_package_track(packager_class, **kw): |
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368 module = util.import_dotted_name(packager_class) |
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369 return module.PackageTrack(**kw) |
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370 |
0 | 371 |
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372 class PackagerGroup(object): |
0 | 373 |
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374 def __init__(self, package_tracks, check_interval): |
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375 self.package_tracks = package_tracks |
0 | 376 self.check_interval = check_interval |
377 | |
378 def run(self): | |
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379 """Runs the packager group indefinitely""" |
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380 logging.info("Tree packager starts. Will check every %d seconds", |
0 | 381 self.check_interval) |
382 last_check = -1 | |
383 while 1: | |
384 now = time.time() | |
385 if now > last_check + self.check_interval: | |
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386 self.check_package_tracks() |
0 | 387 last_check = now |
388 next_check = now + self.check_interval | |
389 to_sleep = next_check - time.time() | |
390 if to_sleep > 0: | |
391 logging.info("Next check at %s", | |
392 time.strftime("%Y-%m-%d %H:%M:%S", | |
393 time.localtime(next_check))) | |
394 time.sleep(to_sleep) | |
395 else: | |
396 logging.info("Next check now") | |
397 | |
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398 def check_package_tracks(self): |
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399 logging.info("Checking package tracks") |
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400 for track in self.package_tracks: |
0 | 401 try: |
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402 packager = track.package_if_updated() |
0 | 403 if packager: |
404 packager.package() | |
405 except: | |
406 logging.exception("An error occurred while" | |
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407 " checking packager track %r", track.name) |
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408 logging.info("Checked all package tracks") |
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409 |
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410 def get_package_tracks(self): |
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411 return self.package_tracks |