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author | Tudor Florea <tudor.florea@enea.com> | 2014-10-16 03:05:19 +0200 |
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committer | Tudor Florea <tudor.florea@enea.com> | 2014-10-16 03:05:19 +0200 |
commit | c527fd1f14c27855a37f2e8ac5346ce8d940ced2 (patch) | |
tree | bb002c1fdf011c41dbd2f0927bed23ecb5f83c97 /bitbake/lib/bb/command.py | |
download | poky-daisy-140929.tar.gz |
initial commit for Enea Linux 4.0-140929daisy-140929
Migrated from the internal git server on the daisy-enea-point-release branch
Signed-off-by: Tudor Florea <tudor.florea@enea.com>
Diffstat (limited to 'bitbake/lib/bb/command.py')
-rw-r--r-- | bitbake/lib/bb/command.py | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py new file mode 100644 index 0000000000..84fcdf9433 --- /dev/null +++ b/bitbake/lib/bb/command.py | |||
@@ -0,0 +1,444 @@ | |||
1 | """ | ||
2 | BitBake 'Command' module | ||
3 | |||
4 | Provide an interface to interact with the bitbake server through 'commands' | ||
5 | """ | ||
6 | |||
7 | # Copyright (C) 2006-2007 Richard Purdie | ||
8 | # | ||
9 | # This program is free software; you can redistribute it and/or modify | ||
10 | # it under the terms of the GNU General Public License version 2 as | ||
11 | # published by the Free Software Foundation. | ||
12 | # | ||
13 | # This program is distributed in the hope that it will be useful, | ||
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | # GNU General Public License for more details. | ||
17 | # | ||
18 | # You should have received a copy of the GNU General Public License along | ||
19 | # with this program; if not, write to the Free Software Foundation, Inc., | ||
20 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
21 | |||
22 | """ | ||
23 | The bitbake server takes 'commands' from its UI/commandline. | ||
24 | Commands are either synchronous or asynchronous. | ||
25 | Async commands return data to the client in the form of events. | ||
26 | Sync commands must only return data through the function return value | ||
27 | and must not trigger events, directly or indirectly. | ||
28 | Commands are queued in a CommandQueue | ||
29 | """ | ||
30 | |||
31 | import bb.event | ||
32 | import bb.cooker | ||
33 | |||
34 | class CommandCompleted(bb.event.Event): | ||
35 | pass | ||
36 | |||
37 | class CommandExit(bb.event.Event): | ||
38 | def __init__(self, exitcode): | ||
39 | bb.event.Event.__init__(self) | ||
40 | self.exitcode = int(exitcode) | ||
41 | |||
42 | class CommandFailed(CommandExit): | ||
43 | def __init__(self, message): | ||
44 | self.error = message | ||
45 | CommandExit.__init__(self, 1) | ||
46 | |||
47 | class CommandError(Exception): | ||
48 | pass | ||
49 | |||
50 | class Command: | ||
51 | """ | ||
52 | A queue of asynchronous commands for bitbake | ||
53 | """ | ||
54 | def __init__(self, cooker): | ||
55 | self.cooker = cooker | ||
56 | self.cmds_sync = CommandsSync() | ||
57 | self.cmds_async = CommandsAsync() | ||
58 | |||
59 | # FIXME Add lock for this | ||
60 | self.currentAsyncCommand = None | ||
61 | |||
62 | def runCommand(self, commandline, ro_only = False): | ||
63 | command = commandline.pop(0) | ||
64 | if hasattr(CommandsSync, command): | ||
65 | # Can run synchronous commands straight away | ||
66 | command_method = getattr(self.cmds_sync, command) | ||
67 | if ro_only: | ||
68 | if not hasattr(command_method, 'readonly') or False == getattr(command_method, 'readonly'): | ||
69 | return None, "Not able to execute not readonly commands in readonly mode" | ||
70 | try: | ||
71 | result = command_method(self, commandline) | ||
72 | except CommandError as exc: | ||
73 | return None, exc.args[0] | ||
74 | except Exception: | ||
75 | import traceback | ||
76 | return None, traceback.format_exc() | ||
77 | else: | ||
78 | return result, None | ||
79 | if self.currentAsyncCommand is not None: | ||
80 | return None, "Busy (%s in progress)" % self.currentAsyncCommand[0] | ||
81 | if command not in CommandsAsync.__dict__: | ||
82 | return None, "No such command" | ||
83 | self.currentAsyncCommand = (command, commandline) | ||
84 | self.cooker.configuration.server_register_idlecallback(self.cooker.runCommands, self.cooker) | ||
85 | return True, None | ||
86 | |||
87 | def runAsyncCommand(self): | ||
88 | try: | ||
89 | if self.cooker.state == bb.cooker.state.error: | ||
90 | return False | ||
91 | if self.currentAsyncCommand is not None: | ||
92 | (command, options) = self.currentAsyncCommand | ||
93 | commandmethod = getattr(CommandsAsync, command) | ||
94 | needcache = getattr( commandmethod, "needcache" ) | ||
95 | if needcache and self.cooker.state != bb.cooker.state.running: | ||
96 | self.cooker.updateCache() | ||
97 | return True | ||
98 | else: | ||
99 | commandmethod(self.cmds_async, self, options) | ||
100 | return False | ||
101 | else: | ||
102 | return False | ||
103 | except KeyboardInterrupt as exc: | ||
104 | self.finishAsyncCommand("Interrupted") | ||
105 | return False | ||
106 | except SystemExit as exc: | ||
107 | arg = exc.args[0] | ||
108 | if isinstance(arg, basestring): | ||
109 | self.finishAsyncCommand(arg) | ||
110 | else: | ||
111 | self.finishAsyncCommand("Exited with %s" % arg) | ||
112 | return False | ||
113 | except Exception as exc: | ||
114 | import traceback | ||
115 | if isinstance(exc, bb.BBHandledException): | ||
116 | self.finishAsyncCommand("") | ||
117 | else: | ||
118 | self.finishAsyncCommand(traceback.format_exc()) | ||
119 | return False | ||
120 | |||
121 | def finishAsyncCommand(self, msg=None, code=None): | ||
122 | if msg or msg == "": | ||
123 | bb.event.fire(CommandFailed(msg), self.cooker.event_data) | ||
124 | elif code: | ||
125 | bb.event.fire(CommandExit(code), self.cooker.event_data) | ||
126 | else: | ||
127 | bb.event.fire(CommandCompleted(), self.cooker.event_data) | ||
128 | self.currentAsyncCommand = None | ||
129 | self.cooker.finishcommand() | ||
130 | |||
131 | class CommandsSync: | ||
132 | """ | ||
133 | A class of synchronous commands | ||
134 | These should run quickly so as not to hurt interactive performance. | ||
135 | These must not influence any running synchronous command. | ||
136 | """ | ||
137 | |||
138 | def stateShutdown(self, command, params): | ||
139 | """ | ||
140 | Trigger cooker 'shutdown' mode | ||
141 | """ | ||
142 | command.cooker.shutdown(False) | ||
143 | |||
144 | def stateForceShutdown(self, command, params): | ||
145 | """ | ||
146 | Stop the cooker | ||
147 | """ | ||
148 | command.cooker.shutdown(True) | ||
149 | |||
150 | def getAllKeysWithFlags(self, command, params): | ||
151 | """ | ||
152 | Returns a dump of the global state. Call with | ||
153 | variable flags to be retrieved as params. | ||
154 | """ | ||
155 | flaglist = params[0] | ||
156 | return command.cooker.getAllKeysWithFlags(flaglist) | ||
157 | getAllKeysWithFlags.readonly = True | ||
158 | |||
159 | def getVariable(self, command, params): | ||
160 | """ | ||
161 | Read the value of a variable from data | ||
162 | """ | ||
163 | varname = params[0] | ||
164 | expand = True | ||
165 | if len(params) > 1: | ||
166 | expand = (params[1] == "True") | ||
167 | |||
168 | return command.cooker.data.getVar(varname, expand) | ||
169 | getVariable.readonly = True | ||
170 | |||
171 | def setVariable(self, command, params): | ||
172 | """ | ||
173 | Set the value of variable in data | ||
174 | """ | ||
175 | varname = params[0] | ||
176 | value = str(params[1]) | ||
177 | command.cooker.data.setVar(varname, value) | ||
178 | |||
179 | def setConfig(self, command, params): | ||
180 | """ | ||
181 | Set the value of variable in configuration | ||
182 | """ | ||
183 | varname = params[0] | ||
184 | value = str(params[1]) | ||
185 | setattr(command.cooker.configuration, varname, value) | ||
186 | |||
187 | def enableDataTracking(self, command, params): | ||
188 | """ | ||
189 | Enable history tracking for variables | ||
190 | """ | ||
191 | command.cooker.enableDataTracking() | ||
192 | |||
193 | def disableDataTracking(self, command, params): | ||
194 | """ | ||
195 | Disable history tracking for variables | ||
196 | """ | ||
197 | command.cooker.disableDataTracking() | ||
198 | |||
199 | def setPrePostConfFiles(self, command, params): | ||
200 | prefiles = params[0].split() | ||
201 | postfiles = params[1].split() | ||
202 | command.cooker.configuration.prefile = prefiles | ||
203 | command.cooker.configuration.postfile = postfiles | ||
204 | |||
205 | def getCpuCount(self, command, params): | ||
206 | """ | ||
207 | Get the CPU count on the bitbake server | ||
208 | """ | ||
209 | return bb.utils.cpu_count() | ||
210 | getCpuCount.readonly = True | ||
211 | |||
212 | def matchFile(self, command, params): | ||
213 | fMatch = params[0] | ||
214 | return command.cooker.matchFile(fMatch) | ||
215 | |||
216 | def generateNewImage(self, command, params): | ||
217 | image = params[0] | ||
218 | base_image = params[1] | ||
219 | package_queue = params[2] | ||
220 | timestamp = params[3] | ||
221 | description = params[4] | ||
222 | return command.cooker.generateNewImage(image, base_image, | ||
223 | package_queue, timestamp, description) | ||
224 | |||
225 | def ensureDir(self, command, params): | ||
226 | directory = params[0] | ||
227 | bb.utils.mkdirhier(directory) | ||
228 | |||
229 | def setVarFile(self, command, params): | ||
230 | """ | ||
231 | Save a variable in a file; used for saving in a configuration file | ||
232 | """ | ||
233 | var = params[0] | ||
234 | val = params[1] | ||
235 | default_file = params[2] | ||
236 | op = params[3] | ||
237 | command.cooker.modifyConfigurationVar(var, val, default_file, op) | ||
238 | |||
239 | def removeVarFile(self, command, params): | ||
240 | """ | ||
241 | Remove a variable declaration from a file | ||
242 | """ | ||
243 | var = params[0] | ||
244 | command.cooker.removeConfigurationVar(var) | ||
245 | |||
246 | def createConfigFile(self, command, params): | ||
247 | """ | ||
248 | Create an extra configuration file | ||
249 | """ | ||
250 | name = params[0] | ||
251 | command.cooker.createConfigFile(name) | ||
252 | |||
253 | def setEventMask(self, command, params): | ||
254 | handlerNum = params[0] | ||
255 | llevel = params[1] | ||
256 | debug_domains = params[2] | ||
257 | mask = params[3] | ||
258 | return bb.event.set_UIHmask(handlerNum, llevel, debug_domains, mask) | ||
259 | |||
260 | def setFeatures(self, command, params): | ||
261 | """ | ||
262 | Set the cooker features to include the passed list of features | ||
263 | """ | ||
264 | features = params[0] | ||
265 | command.cooker.setFeatures(features) | ||
266 | |||
267 | # although we change the internal state of the cooker, this is transparent since | ||
268 | # we always take and leave the cooker in state.initial | ||
269 | setFeatures.readonly = True | ||
270 | |||
271 | class CommandsAsync: | ||
272 | """ | ||
273 | A class of asynchronous commands | ||
274 | These functions communicate via generated events. | ||
275 | Any function that requires metadata parsing should be here. | ||
276 | """ | ||
277 | |||
278 | def buildFile(self, command, params): | ||
279 | """ | ||
280 | Build a single specified .bb file | ||
281 | """ | ||
282 | bfile = params[0] | ||
283 | task = params[1] | ||
284 | |||
285 | command.cooker.buildFile(bfile, task) | ||
286 | buildFile.needcache = False | ||
287 | |||
288 | def buildTargets(self, command, params): | ||
289 | """ | ||
290 | Build a set of targets | ||
291 | """ | ||
292 | pkgs_to_build = params[0] | ||
293 | task = params[1] | ||
294 | |||
295 | command.cooker.buildTargets(pkgs_to_build, task) | ||
296 | buildTargets.needcache = True | ||
297 | |||
298 | def generateDepTreeEvent(self, command, params): | ||
299 | """ | ||
300 | Generate an event containing the dependency information | ||
301 | """ | ||
302 | pkgs_to_build = params[0] | ||
303 | task = params[1] | ||
304 | |||
305 | command.cooker.generateDepTreeEvent(pkgs_to_build, task) | ||
306 | command.finishAsyncCommand() | ||
307 | generateDepTreeEvent.needcache = True | ||
308 | |||
309 | def generateDotGraph(self, command, params): | ||
310 | """ | ||
311 | Dump dependency information to disk as .dot files | ||
312 | """ | ||
313 | pkgs_to_build = params[0] | ||
314 | task = params[1] | ||
315 | |||
316 | command.cooker.generateDotGraphFiles(pkgs_to_build, task) | ||
317 | command.finishAsyncCommand() | ||
318 | generateDotGraph.needcache = True | ||
319 | |||
320 | def generateTargetsTree(self, command, params): | ||
321 | """ | ||
322 | Generate a tree of buildable targets. | ||
323 | If klass is provided ensure all recipes that inherit the class are | ||
324 | included in the package list. | ||
325 | If pkg_list provided use that list (plus any extras brought in by | ||
326 | klass) rather than generating a tree for all packages. | ||
327 | """ | ||
328 | klass = params[0] | ||
329 | pkg_list = params[1] | ||
330 | |||
331 | command.cooker.generateTargetsTree(klass, pkg_list) | ||
332 | command.finishAsyncCommand() | ||
333 | generateTargetsTree.needcache = True | ||
334 | |||
335 | def findCoreBaseFiles(self, command, params): | ||
336 | """ | ||
337 | Find certain files in COREBASE directory. i.e. Layers | ||
338 | """ | ||
339 | subdir = params[0] | ||
340 | filename = params[1] | ||
341 | |||
342 | command.cooker.findCoreBaseFiles(subdir, filename) | ||
343 | command.finishAsyncCommand() | ||
344 | findCoreBaseFiles.needcache = False | ||
345 | |||
346 | def findConfigFiles(self, command, params): | ||
347 | """ | ||
348 | Find config files which provide appropriate values | ||
349 | for the passed configuration variable. i.e. MACHINE | ||
350 | """ | ||
351 | varname = params[0] | ||
352 | |||
353 | command.cooker.findConfigFiles(varname) | ||
354 | command.finishAsyncCommand() | ||
355 | findConfigFiles.needcache = False | ||
356 | |||
357 | def findFilesMatchingInDir(self, command, params): | ||
358 | """ | ||
359 | Find implementation files matching the specified pattern | ||
360 | in the requested subdirectory of a BBPATH | ||
361 | """ | ||
362 | pattern = params[0] | ||
363 | directory = params[1] | ||
364 | |||
365 | command.cooker.findFilesMatchingInDir(pattern, directory) | ||
366 | command.finishAsyncCommand() | ||
367 | findFilesMatchingInDir.needcache = False | ||
368 | |||
369 | def findConfigFilePath(self, command, params): | ||
370 | """ | ||
371 | Find the path of the requested configuration file | ||
372 | """ | ||
373 | configfile = params[0] | ||
374 | |||
375 | command.cooker.findConfigFilePath(configfile) | ||
376 | command.finishAsyncCommand() | ||
377 | findConfigFilePath.needcache = False | ||
378 | |||
379 | def showVersions(self, command, params): | ||
380 | """ | ||
381 | Show the currently selected versions | ||
382 | """ | ||
383 | command.cooker.showVersions() | ||
384 | command.finishAsyncCommand() | ||
385 | showVersions.needcache = True | ||
386 | |||
387 | def showEnvironmentTarget(self, command, params): | ||
388 | """ | ||
389 | Print the environment of a target recipe | ||
390 | (needs the cache to work out which recipe to use) | ||
391 | """ | ||
392 | pkg = params[0] | ||
393 | |||
394 | command.cooker.showEnvironment(None, pkg) | ||
395 | command.finishAsyncCommand() | ||
396 | showEnvironmentTarget.needcache = True | ||
397 | |||
398 | def showEnvironment(self, command, params): | ||
399 | """ | ||
400 | Print the standard environment | ||
401 | or if specified the environment for a specified recipe | ||
402 | """ | ||
403 | bfile = params[0] | ||
404 | |||
405 | command.cooker.showEnvironment(bfile) | ||
406 | command.finishAsyncCommand() | ||
407 | showEnvironment.needcache = False | ||
408 | |||
409 | def parseFiles(self, command, params): | ||
410 | """ | ||
411 | Parse the .bb files | ||
412 | """ | ||
413 | command.cooker.updateCache() | ||
414 | command.finishAsyncCommand() | ||
415 | parseFiles.needcache = True | ||
416 | |||
417 | def compareRevisions(self, command, params): | ||
418 | """ | ||
419 | Parse the .bb files | ||
420 | """ | ||
421 | if bb.fetch.fetcher_compare_revisions(command.cooker.data): | ||
422 | command.finishAsyncCommand(code=1) | ||
423 | else: | ||
424 | command.finishAsyncCommand() | ||
425 | compareRevisions.needcache = True | ||
426 | |||
427 | def triggerEvent(self, command, params): | ||
428 | """ | ||
429 | Trigger a certain event | ||
430 | """ | ||
431 | event = params[0] | ||
432 | bb.event.fire(eval(event), command.cooker.data) | ||
433 | command.currentAsyncCommand = None | ||
434 | triggerEvent.needcache = False | ||
435 | |||
436 | def resetCooker(self, command, params): | ||
437 | """ | ||
438 | Reset the cooker to its initial state, thus forcing a reparse for | ||
439 | any async command that has the needcache property set to True | ||
440 | """ | ||
441 | command.cooker.reset() | ||
442 | command.finishAsyncCommand() | ||
443 | resetCooker.needcache = False | ||
444 | |||