1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
"""
BitBake 'Command' module
Provide an interface to interact with the bitbake server through 'commands'
"""
# Copyright (C) 2006-2007 Richard Purdie
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
The bitbake server takes 'commands' from its UI/commandline.
Commands are either synchronous or asynchronous.
Async commands return data to the client in the form of events.
Sync commands must only return data through the function return value
and must not trigger events, directly or indirectly.
Commands are queued in a CommandQueue
"""
import bb
async_cmds = {}
sync_cmds = {}
class Command:
"""
A queue of asynchronous commands for bitbake
"""
def __init__(self, cooker):
self.cooker = cooker
self.cmds_sync = CommandsSync()
self.cmds_async = CommandsAsync()
# FIXME Add lock for this
self.currentAsyncCommand = None
for attr in CommandsSync.__dict__:
command = attr[:].lower()
method = getattr(CommandsSync, attr)
sync_cmds[command] = (method)
for attr in CommandsAsync.__dict__:
command = attr[:].lower()
method = getattr(CommandsAsync, attr)
async_cmds[command] = (method)
def runCommand(self, commandline):
bb.debug("Running command %s" % commandline)
try:
command = commandline.pop(0)
if command in CommandsSync.__dict__:
# Can run synchronous commands straight away
return getattr(CommandsSync, command)(self.cmds_sync, self, commandline)
if self.currentAsyncCommand is not None:
return "Busy (%s in progress)" % self.currentAsyncCommand[0]
if command not in CommandsAsync.__dict__:
return "No such command"
self.currentAsyncCommand = (command, commandline)
self.cooker.server.register_idle_function(self.cooker.runCommands, self.cooker)
return True
except:
import traceback
return traceback.format_exc()
def runAsyncCommand(self):
try:
if self.currentAsyncCommand is not None:
(command, options) = self.currentAsyncCommand
commandmethod = getattr(CommandsAsync, command)
needcache = getattr( commandmethod, "needcache" )
if needcache and self.cooker.cookerState != bb.cooker.cookerParsed:
self.cooker.updateCache()
return True
else:
commandmethod(self.cmds_async, self, options)
return False
else:
return False
except:
import traceback
self.finishAsyncCommand(traceback.format_exc())
return False
def finishAsyncCommand(self, error = None):
if error:
bb.event.fire(bb.command.CookerCommandFailed(self.cooker.configuration.event_data, error))
else:
bb.event.fire(bb.command.CookerCommandCompleted(self.cooker.configuration.event_data))
self.currentAsyncCommand = None
class CommandsSync:
"""
A class of synchronous commands
These should run quickly so as not to hurt interactive performance.
These must not influence any running synchronous command.
"""
def stateShutdown(self, command, params):
"""
Trigger cooker 'shutdown' mode
"""
command.cooker.cookerAction = bb.cooker.cookerShutdown
def stateStop(self, command, params):
"""
Stop the cooker
"""
command.cooker.cookerAction = bb.cooker.cookerStop
def getCmdLineAction(self, command, params):
"""
Get any command parsed from the commandline
"""
return command.cooker.commandlineAction
def getVariable(self, command, params):
"""
Read the value of a variable from configuration.data
"""
varname = params[0]
expand = True
if len(params) > 1:
expand = params[1]
return bb.data.getVar(varname, command.cooker.configuration.data, expand)
def setVariable(self, command, params):
"""
Set the value of variable in configuration.data
"""
varname = params[0]
value = params[1]
bb.data.setVar(varname, value, command.cooker.configuration.data)
class CommandsAsync:
"""
A class of asynchronous commands
These functions communicate via generated events.
Any function that requires metadata parsing should be here.
"""
def buildFile(self, command, params):
"""
Build a single specified .bb file
"""
bfile = params[0]
task = params[1]
command.cooker.buildFile(bfile, task)
buildFile.needcache = False
def buildTargets(self, command, params):
"""
Build a set of targets
"""
pkgs_to_build = params[0]
task = params[1]
command.cooker.buildTargets(pkgs_to_build, task)
buildTargets.needcache = True
def generateDepTreeEvent(self, command, params):
"""
Generate an event containing the dependency information
"""
pkgs_to_build = params[0]
task = params[1]
command.cooker.generateDepTreeEvent(pkgs_to_build, task)
command.finishAsyncCommand()
generateDepTreeEvent.needcache = True
def generateDotGraph(self, command, params):
"""
Dump dependency information to disk as .dot files
"""
pkgs_to_build = params[0]
task = params[1]
command.cooker.generateDotGraphFiles(pkgs_to_build, task)
command.finishAsyncCommand()
generateDotGraph.needcache = True
def showVersions(self, command, params):
"""
Show the currently selected versions
"""
command.cooker.showVersions()
command.finishAsyncCommand()
showVersions.needcache = True
def showEnvironment(self, command, params):
"""
Print the environment
"""
bfile = params[0]
pkg = params[1]
command.cooker.showEnvironment(bfile, pkg)
command.finishAsyncCommand()
showEnvironment.needcache = True
def parseFiles(self, command, params):
"""
Parse the .bb files
"""
command.cooker.updateCache()
command.finishAsyncCommand()
parseFiles.needcache = True
#
# Events
#
class CookerCommandCompleted(bb.event.Event):
"""
Cooker command completed
"""
def __init__(self, data):
bb.event.Event.__init__(self, data)
class CookerCommandFailed(bb.event.Event):
"""
Cooker command completed
"""
def __init__(self, data, error):
bb.event.Event.__init__(self, data)
self.error = error
|
