forked from brl/citadel
821 lines
30 KiB
Python
821 lines
30 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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##########################################################################
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#
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# Copyright (C) 2005-2006 Michael 'Mickey' Lauer <mickey@Vanille.de>
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# Copyright (C) 2005-2006 Vanille Media
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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##########################################################################
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#
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# Thanks to:
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# * Holger Freyther <zecke@handhelds.org>
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# * Justin Patrin <papercrane@reversefold.com>
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#
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##########################################################################
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"""
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BitBake Shell
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IDEAS:
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* list defined tasks per package
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* list classes
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* toggle force
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* command to reparse just one (or more) bbfile(s)
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* automatic check if reparsing is necessary (inotify?)
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* frontend for bb file manipulation
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* more shell-like features:
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- output control, i.e. pipe output into grep, sort, etc.
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- job control, i.e. bring running commands into background and foreground
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* start parsing in background right after startup
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* ncurses interface
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PROBLEMS:
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* force doesn't always work
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* readline completion for commands with more than one parameters
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"""
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##########################################################################
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# Import and setup global variables
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##########################################################################
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from __future__ import print_function
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from functools import reduce
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try:
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set
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except NameError:
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from sets import Set as set
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import sys, os, readline, socket, httplib, urllib, commands, popen2, shlex, Queue, fnmatch
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from bb import data, parse, build, cache, taskdata, runqueue, providers as Providers
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__version__ = "0.5.3.1"
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__credits__ = """BitBake Shell Version %s (C) 2005 Michael 'Mickey' Lauer <mickey@Vanille.de>
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Type 'help' for more information, press CTRL-D to exit.""" % __version__
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cmds = {}
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leave_mainloop = False
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last_exception = None
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cooker = None
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parsed = False
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debug = os.environ.get( "BBSHELL_DEBUG", "" )
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##########################################################################
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# Class BitBakeShellCommands
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##########################################################################
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class BitBakeShellCommands:
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"""This class contains the valid commands for the shell"""
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def __init__( self, shell ):
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"""Register all the commands"""
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self._shell = shell
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for attr in BitBakeShellCommands.__dict__:
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if not attr.startswith( "_" ):
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if attr.endswith( "_" ):
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command = attr[:-1].lower()
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else:
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command = attr[:].lower()
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method = getattr( BitBakeShellCommands, attr )
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debugOut( "registering command '%s'" % command )
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# scan number of arguments
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usage = getattr( method, "usage", "" )
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if usage != "<...>":
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numArgs = len( usage.split() )
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else:
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numArgs = -1
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shell.registerCommand( command, method, numArgs, "%s %s" % ( command, usage ), method.__doc__ )
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def _checkParsed( self ):
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if not parsed:
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print("SHELL: This command needs to parse bbfiles...")
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self.parse( None )
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def _findProvider( self, item ):
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self._checkParsed()
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# Need to use taskData for this information
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preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
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if not preferred: preferred = item
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try:
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lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status)
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except KeyError:
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if item in cooker.status.providers:
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pf = cooker.status.providers[item][0]
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else:
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pf = None
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return pf
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def alias( self, params ):
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"""Register a new name for a command"""
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new, old = params
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if not old in cmds:
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print("ERROR: Command '%s' not known" % old)
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else:
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cmds[new] = cmds[old]
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print("OK")
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alias.usage = "<alias> <command>"
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def buffer( self, params ):
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"""Dump specified output buffer"""
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index = params[0]
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print(self._shell.myout.buffer( int( index ) ))
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buffer.usage = "<index>"
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def buffers( self, params ):
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"""Show the available output buffers"""
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commands = self._shell.myout.bufferedCommands()
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if not commands:
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print("SHELL: No buffered commands available yet. Start doing something.")
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else:
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print("="*35, "Available Output Buffers", "="*27)
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for index, cmd in enumerate( commands ):
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print("| %s %s" % ( str( index ).ljust( 3 ), cmd ))
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print("="*88)
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def build( self, params, cmd = "build" ):
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"""Build a providee"""
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global last_exception
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globexpr = params[0]
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self._checkParsed()
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names = globfilter( cooker.status.pkg_pn, globexpr )
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if len( names ) == 0: names = [ globexpr ]
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print("SHELL: Building %s" % ' '.join( names ))
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td = taskdata.TaskData(cooker.configuration.abort)
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localdata = data.createCopy(cooker.configuration.data)
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data.update_data(localdata)
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data.expandKeys(localdata)
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try:
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tasks = []
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for name in names:
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td.add_provider(localdata, cooker.status, name)
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providers = td.get_provider(name)
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if len(providers) == 0:
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raise Providers.NoProvider
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tasks.append([name, "do_%s" % cmd])
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td.add_unresolved(localdata, cooker.status)
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rq = runqueue.RunQueue(cooker, localdata, cooker.status, td, tasks)
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rq.prepare_runqueue()
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rq.execute_runqueue()
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except Providers.NoProvider:
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print("ERROR: No Provider")
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last_exception = Providers.NoProvider
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except runqueue.TaskFailure as fnids:
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last_exception = runqueue.TaskFailure
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except build.FuncFailed as e:
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print("ERROR: Couldn't build '%s'" % names)
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last_exception = e
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build.usage = "<providee>"
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def clean( self, params ):
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"""Clean a providee"""
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self.build( params, "clean" )
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clean.usage = "<providee>"
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def compile( self, params ):
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"""Execute 'compile' on a providee"""
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self.build( params, "compile" )
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compile.usage = "<providee>"
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def configure( self, params ):
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"""Execute 'configure' on a providee"""
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self.build( params, "configure" )
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configure.usage = "<providee>"
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def install( self, params ):
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"""Execute 'install' on a providee"""
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self.build( params, "install" )
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install.usage = "<providee>"
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def edit( self, params ):
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"""Call $EDITOR on a providee"""
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name = params[0]
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bbfile = self._findProvider( name )
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if bbfile is not None:
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os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), bbfile ) )
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else:
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print("ERROR: Nothing provides '%s'" % name)
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edit.usage = "<providee>"
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def environment( self, params ):
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"""Dump out the outer BitBake environment"""
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cooker.showEnvironment()
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def exit_( self, params ):
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"""Leave the BitBake Shell"""
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debugOut( "setting leave_mainloop to true" )
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global leave_mainloop
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leave_mainloop = True
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def fetch( self, params ):
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"""Fetch a providee"""
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self.build( params, "fetch" )
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fetch.usage = "<providee>"
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def fileBuild( self, params, cmd = "build" ):
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"""Parse and build a .bb file"""
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global last_exception
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name = params[0]
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bf = completeFilePath( name )
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print("SHELL: Calling '%s' on '%s'" % ( cmd, bf ))
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try:
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cooker.buildFile(bf, cmd)
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except parse.ParseError:
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print("ERROR: Unable to open or parse '%s'" % bf)
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except build.FuncFailed as e:
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print("ERROR: Couldn't build '%s'" % name)
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last_exception = e
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fileBuild.usage = "<bbfile>"
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def fileClean( self, params ):
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"""Clean a .bb file"""
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self.fileBuild( params, "clean" )
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fileClean.usage = "<bbfile>"
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def fileEdit( self, params ):
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"""Call $EDITOR on a .bb file"""
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name = params[0]
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os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), completeFilePath( name ) ) )
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fileEdit.usage = "<bbfile>"
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def fileRebuild( self, params ):
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"""Rebuild (clean & build) a .bb file"""
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self.fileBuild( params, "rebuild" )
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fileRebuild.usage = "<bbfile>"
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def fileReparse( self, params ):
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"""(re)Parse a bb file"""
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bbfile = params[0]
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print("SHELL: Parsing '%s'" % bbfile)
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parse.update_mtime( bbfile )
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cooker.parser.reparse(bbfile)
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if False: #fromCache:
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print("SHELL: File has not been updated, not reparsing")
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else:
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print("SHELL: Parsed")
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fileReparse.usage = "<bbfile>"
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def abort( self, params ):
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"""Toggle abort task execution flag (see bitbake -k)"""
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cooker.configuration.abort = not cooker.configuration.abort
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print("SHELL: Abort Flag is now '%s'" % repr( cooker.configuration.abort ))
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def force( self, params ):
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"""Toggle force task execution flag (see bitbake -f)"""
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cooker.configuration.force = not cooker.configuration.force
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print("SHELL: Force Flag is now '%s'" % repr( cooker.configuration.force ))
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def help( self, params ):
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"""Show a comprehensive list of commands and their purpose"""
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print("="*30, "Available Commands", "="*30)
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for cmd in sorted(cmds):
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function, numparams, usage, helptext = cmds[cmd]
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print("| %s | %s" % (usage.ljust(30), helptext))
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print("="*78)
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def lastError( self, params ):
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"""Show the reason or log that was produced by the last BitBake event exception"""
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if last_exception is None:
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print("SHELL: No Errors yet (Phew)...")
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else:
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reason, event = last_exception.args
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print("SHELL: Reason for the last error: '%s'" % reason)
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if ':' in reason:
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msg, filename = reason.split( ':' )
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filename = filename.strip()
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print("SHELL: Dumping log file for last error:")
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try:
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print(open( filename ).read())
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except IOError:
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print("ERROR: Couldn't open '%s'" % filename)
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def match( self, params ):
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"""Dump all files or providers matching a glob expression"""
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what, globexpr = params
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if what == "files":
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self._checkParsed()
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for key in globfilter( cooker.status.pkg_fn, globexpr ): print(key)
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elif what == "providers":
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self._checkParsed()
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for key in globfilter( cooker.status.pkg_pn, globexpr ): print(key)
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else:
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print("Usage: match %s" % self.print_.usage)
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match.usage = "<files|providers> <glob>"
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def new( self, params ):
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"""Create a new .bb file and open the editor"""
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dirname, filename = params
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packages = '/'.join( data.getVar( "BBFILES", cooker.configuration.data, 1 ).split('/')[:-2] )
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fulldirname = "%s/%s" % ( packages, dirname )
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if not os.path.exists( fulldirname ):
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print("SHELL: Creating '%s'" % fulldirname)
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os.mkdir( fulldirname )
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if os.path.exists( fulldirname ) and os.path.isdir( fulldirname ):
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if os.path.exists( "%s/%s" % ( fulldirname, filename ) ):
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print("SHELL: ERROR: %s/%s already exists" % ( fulldirname, filename ))
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return False
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print("SHELL: Creating '%s/%s'" % ( fulldirname, filename ))
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newpackage = open( "%s/%s" % ( fulldirname, filename ), "w" )
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print("""DESCRIPTION = ""
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SECTION = ""
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AUTHOR = ""
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HOMEPAGE = ""
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MAINTAINER = ""
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LICENSE = "GPL"
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PR = "r0"
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SRC_URI = ""
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#inherit base
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#do_configure() {
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#
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#}
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#do_compile() {
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#
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#}
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#do_stage() {
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#
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#}
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#do_install() {
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#
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#}
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""", file=newpackage)
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newpackage.close()
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os.system( "%s %s/%s" % ( os.environ.get( "EDITOR" ), fulldirname, filename ) )
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new.usage = "<directory> <filename>"
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def package( self, params ):
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"""Execute 'package' on a providee"""
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self.build( params, "package" )
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package.usage = "<providee>"
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def pasteBin( self, params ):
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"""Send a command + output buffer to the pastebin at http://rafb.net/paste"""
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index = params[0]
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contents = self._shell.myout.buffer( int( index ) )
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sendToPastebin( "output of " + params[0], contents )
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pasteBin.usage = "<index>"
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def pasteLog( self, params ):
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"""Send the last event exception error log (if there is one) to http://rafb.net/paste"""
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if last_exception is None:
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print("SHELL: No Errors yet (Phew)...")
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else:
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reason, event = last_exception.args
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print("SHELL: Reason for the last error: '%s'" % reason)
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if ':' in reason:
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msg, filename = reason.split( ':' )
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filename = filename.strip()
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print("SHELL: Pasting log file to pastebin...")
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file = open( filename ).read()
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sendToPastebin( "contents of " + filename, file )
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def patch( self, params ):
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"""Execute 'patch' command on a providee"""
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self.build( params, "patch" )
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patch.usage = "<providee>"
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def parse( self, params ):
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"""(Re-)parse .bb files and calculate the dependency graph"""
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cooker.status = cache.CacheData(cooker.caches_array)
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ignore = data.getVar("ASSUME_PROVIDED", cooker.configuration.data, 1) or ""
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cooker.status.ignored_dependencies = set( ignore.split() )
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cooker.handleCollections( data.getVar("BBFILE_COLLECTIONS", cooker.configuration.data, 1) )
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(filelist, masked) = cooker.collect_bbfiles()
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cooker.parse_bbfiles(filelist, masked, cooker.myProgressCallback)
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cooker.buildDepgraph()
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global parsed
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parsed = True
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print()
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def reparse( self, params ):
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"""(re)Parse a providee's bb file"""
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bbfile = self._findProvider( params[0] )
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if bbfile is not None:
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print("SHELL: Found bbfile '%s' for '%s'" % ( bbfile, params[0] ))
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self.fileReparse( [ bbfile ] )
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else:
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print("ERROR: Nothing provides '%s'" % params[0])
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reparse.usage = "<providee>"
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def getvar( self, params ):
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"""Dump the contents of an outer BitBake environment variable"""
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var = params[0]
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value = data.getVar( var, cooker.configuration.data, 1 )
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print(value)
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getvar.usage = "<variable>"
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def peek( self, params ):
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"""Dump contents of variable defined in providee's metadata"""
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name, var = params
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bbfile = self._findProvider( name )
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if bbfile is not None:
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the_data = cache.Cache.loadDataFull(bbfile, cooker.configuration.data)
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value = the_data.getVar( var, 1 )
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print(value)
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else:
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print("ERROR: Nothing provides '%s'" % name)
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peek.usage = "<providee> <variable>"
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def poke( self, params ):
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"""Set contents of variable defined in providee's metadata"""
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name, var, value = params
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bbfile = self._findProvider( name )
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if bbfile is not None:
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print("ERROR: Sorry, this functionality is currently broken")
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#d = cooker.pkgdata[bbfile]
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#data.setVar( var, value, d )
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# mark the change semi persistant
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#cooker.pkgdata.setDirty(bbfile, d)
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#print "OK"
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else:
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print("ERROR: Nothing provides '%s'" % name)
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poke.usage = "<providee> <variable> <value>"
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def print_( self, params ):
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|
"""Dump all files or providers"""
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|
what = params[0]
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if what == "files":
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self._checkParsed()
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for key in cooker.status.pkg_fn: print(key)
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elif what == "providers":
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self._checkParsed()
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for key in cooker.status.providers: print(key)
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else:
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print("Usage: print %s" % self.print_.usage)
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print_.usage = "<files|providers>"
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def python( self, params ):
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"""Enter the expert mode - an interactive BitBake Python Interpreter"""
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sys.ps1 = "EXPERT BB>>> "
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sys.ps2 = "EXPERT BB... "
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import code
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interpreter = code.InteractiveConsole( dict( globals() ) )
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interpreter.interact( "SHELL: Expert Mode - BitBake Python %s\nType 'help' for more information, press CTRL-D to switch back to BBSHELL." % sys.version )
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|
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def showdata( self, params ):
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"""Execute 'showdata' on a providee"""
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cooker.showEnvironment(None, params)
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showdata.usage = "<providee>"
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|
|
|
def setVar( self, params ):
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"""Set an outer BitBake environment variable"""
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|
var, value = params
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data.setVar( var, value, cooker.configuration.data )
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print("OK")
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|
setVar.usage = "<variable> <value>"
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|
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def rebuild( self, params ):
|
|
"""Clean and rebuild a .bb file or a providee"""
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|
self.build( params, "clean" )
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|
self.build( params, "build" )
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|
rebuild.usage = "<providee>"
|
|
|
|
def shell( self, params ):
|
|
"""Execute a shell command and dump the output"""
|
|
if params != "":
|
|
print(commands.getoutput( " ".join( params ) ))
|
|
shell.usage = "<...>"
|
|
|
|
def stage( self, params ):
|
|
"""Execute 'stage' on a providee"""
|
|
self.build( params, "populate_staging" )
|
|
stage.usage = "<providee>"
|
|
|
|
def status( self, params ):
|
|
"""<just for testing>"""
|
|
print("-" * 78)
|
|
print("building list = '%s'" % cooker.building_list)
|
|
print("build path = '%s'" % cooker.build_path)
|
|
print("consider_msgs_cache = '%s'" % cooker.consider_msgs_cache)
|
|
print("build stats = '%s'" % cooker.stats)
|
|
if last_exception is not None: print("last_exception = '%s'" % repr( last_exception.args ))
|
|
print("memory output contents = '%s'" % self._shell.myout._buffer)
|
|
|
|
def test( self, params ):
|
|
"""<just for testing>"""
|
|
print("testCommand called with '%s'" % params)
|
|
|
|
def unpack( self, params ):
|
|
"""Execute 'unpack' on a providee"""
|
|
self.build( params, "unpack" )
|
|
unpack.usage = "<providee>"
|
|
|
|
def which( self, params ):
|
|
"""Computes the providers for a given providee"""
|
|
# Need to use taskData for this information
|
|
item = params[0]
|
|
|
|
self._checkParsed()
|
|
|
|
preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
|
|
if not preferred: preferred = item
|
|
|
|
try:
|
|
lv, lf, pv, pf = Providers.findBestProvider(preferred, cooker.configuration.data, cooker.status)
|
|
except KeyError:
|
|
lv, lf, pv, pf = (None,)*4
|
|
|
|
try:
|
|
providers = cooker.status.providers[item]
|
|
except KeyError:
|
|
print("SHELL: ERROR: Nothing provides", preferred)
|
|
else:
|
|
for provider in providers:
|
|
if provider == pf: provider = " (***) %s" % provider
|
|
else: provider = " %s" % provider
|
|
print(provider)
|
|
which.usage = "<providee>"
|
|
|
|
##########################################################################
|
|
# Common helper functions
|
|
##########################################################################
|
|
|
|
def completeFilePath( bbfile ):
|
|
"""Get the complete bbfile path"""
|
|
if not cooker.status: return bbfile
|
|
if not cooker.status.pkg_fn: return bbfile
|
|
for key in cooker.status.pkg_fn:
|
|
if key.endswith( bbfile ):
|
|
return key
|
|
return bbfile
|
|
|
|
def sendToPastebin( desc, content ):
|
|
"""Send content to http://oe.pastebin.com"""
|
|
mydata = {}
|
|
mydata["lang"] = "Plain Text"
|
|
mydata["desc"] = desc
|
|
mydata["cvt_tabs"] = "No"
|
|
mydata["nick"] = "%s@%s" % ( os.environ.get( "USER", "unknown" ), socket.gethostname() or "unknown" )
|
|
mydata["text"] = content
|
|
params = urllib.urlencode( mydata )
|
|
headers = {"Content-type": "application/x-www-form-urlencoded", "Accept": "text/plain"}
|
|
|
|
host = "rafb.net"
|
|
conn = httplib.HTTPConnection( "%s:80" % host )
|
|
conn.request("POST", "/paste/paste.php", params, headers )
|
|
|
|
response = conn.getresponse()
|
|
conn.close()
|
|
|
|
if response.status == 302:
|
|
location = response.getheader( "location" ) or "unknown"
|
|
print("SHELL: Pasted to http://%s%s" % ( host, location ))
|
|
else:
|
|
print("ERROR: %s %s" % ( response.status, response.reason ))
|
|
|
|
def completer( text, state ):
|
|
"""Return a possible readline completion"""
|
|
debugOut( "completer called with text='%s', state='%d'" % ( text, state ) )
|
|
|
|
if state == 0:
|
|
line = readline.get_line_buffer()
|
|
if " " in line:
|
|
line = line.split()
|
|
# we are in second (or more) argument
|
|
if line[0] in cmds and hasattr( cmds[line[0]][0], "usage" ): # known command and usage
|
|
u = getattr( cmds[line[0]][0], "usage" ).split()[0]
|
|
if u == "<variable>":
|
|
allmatches = cooker.configuration.data.keys()
|
|
elif u == "<bbfile>":
|
|
if cooker.status.pkg_fn is None: allmatches = [ "(No Matches Available. Parsed yet?)" ]
|
|
else: allmatches = [ x.split("/")[-1] for x in cooker.status.pkg_fn ]
|
|
elif u == "<providee>":
|
|
if cooker.status.pkg_fn is None: allmatches = [ "(No Matches Available. Parsed yet?)" ]
|
|
else: allmatches = cooker.status.providers.iterkeys()
|
|
else: allmatches = [ "(No tab completion available for this command)" ]
|
|
else: allmatches = [ "(No tab completion available for this command)" ]
|
|
else:
|
|
# we are in first argument
|
|
allmatches = cmds.iterkeys()
|
|
|
|
completer.matches = [ x for x in allmatches if x[:len(text)] == text ]
|
|
#print "completer.matches = '%s'" % completer.matches
|
|
if len( completer.matches ) > state:
|
|
return completer.matches[state]
|
|
else:
|
|
return None
|
|
|
|
def debugOut( text ):
|
|
if debug:
|
|
sys.stderr.write( "( %s )\n" % text )
|
|
|
|
def columnize( alist, width = 80 ):
|
|
"""
|
|
A word-wrap function that preserves existing line breaks
|
|
and most spaces in the text. Expects that existing line
|
|
breaks are posix newlines (\n).
|
|
"""
|
|
return reduce(lambda line, word, width=width: '%s%s%s' %
|
|
(line,
|
|
' \n'[(len(line[line.rfind('\n')+1:])
|
|
+ len(word.split('\n', 1)[0]
|
|
) >= width)],
|
|
word),
|
|
alist
|
|
)
|
|
|
|
def globfilter( names, pattern ):
|
|
return fnmatch.filter( names, pattern )
|
|
|
|
##########################################################################
|
|
# Class MemoryOutput
|
|
##########################################################################
|
|
|
|
class MemoryOutput:
|
|
"""File-like output class buffering the output of the last 10 commands"""
|
|
def __init__( self, delegate ):
|
|
self.delegate = delegate
|
|
self._buffer = []
|
|
self.text = []
|
|
self._command = None
|
|
|
|
def startCommand( self, command ):
|
|
self._command = command
|
|
self.text = []
|
|
def endCommand( self ):
|
|
if self._command is not None:
|
|
if len( self._buffer ) == 10: del self._buffer[0]
|
|
self._buffer.append( ( self._command, self.text ) )
|
|
def removeLast( self ):
|
|
if self._buffer:
|
|
del self._buffer[ len( self._buffer ) - 1 ]
|
|
self.text = []
|
|
self._command = None
|
|
def lastBuffer( self ):
|
|
if self._buffer:
|
|
return self._buffer[ len( self._buffer ) -1 ][1]
|
|
def bufferedCommands( self ):
|
|
return [ cmd for cmd, output in self._buffer ]
|
|
def buffer( self, i ):
|
|
if i < len( self._buffer ):
|
|
return "BB>> %s\n%s" % ( self._buffer[i][0], "".join( self._buffer[i][1] ) )
|
|
else: return "ERROR: Invalid buffer number. Buffer needs to be in (0, %d)" % ( len( self._buffer ) - 1 )
|
|
def write( self, text ):
|
|
if self._command is not None and text != "BB>> ": self.text.append( text )
|
|
if self.delegate is not None: self.delegate.write( text )
|
|
def flush( self ):
|
|
return self.delegate.flush()
|
|
def fileno( self ):
|
|
return self.delegate.fileno()
|
|
def isatty( self ):
|
|
return self.delegate.isatty()
|
|
|
|
##########################################################################
|
|
# Class BitBakeShell
|
|
##########################################################################
|
|
|
|
class BitBakeShell:
|
|
|
|
def __init__( self ):
|
|
"""Register commands and set up readline"""
|
|
self.commandQ = Queue.Queue()
|
|
self.commands = BitBakeShellCommands( self )
|
|
self.myout = MemoryOutput( sys.stdout )
|
|
self.historyfilename = os.path.expanduser( "~/.bbsh_history" )
|
|
self.startupfilename = os.path.expanduser( "~/.bbsh_startup" )
|
|
|
|
readline.set_completer( completer )
|
|
readline.set_completer_delims( " " )
|
|
readline.parse_and_bind("tab: complete")
|
|
|
|
try:
|
|
readline.read_history_file( self.historyfilename )
|
|
except IOError:
|
|
pass # It doesn't exist yet.
|
|
|
|
print(__credits__)
|
|
|
|
def cleanup( self ):
|
|
"""Write readline history and clean up resources"""
|
|
debugOut( "writing command history" )
|
|
try:
|
|
readline.write_history_file( self.historyfilename )
|
|
except:
|
|
print("SHELL: Unable to save command history")
|
|
|
|
def registerCommand( self, command, function, numparams = 0, usage = "", helptext = "" ):
|
|
"""Register a command"""
|
|
if usage == "": usage = command
|
|
if helptext == "": helptext = function.__doc__ or "<not yet documented>"
|
|
cmds[command] = ( function, numparams, usage, helptext )
|
|
|
|
def processCommand( self, command, params ):
|
|
"""Process a command. Check number of params and print a usage string, if appropriate"""
|
|
debugOut( "processing command '%s'..." % command )
|
|
try:
|
|
function, numparams, usage, helptext = cmds[command]
|
|
except KeyError:
|
|
print("SHELL: ERROR: '%s' command is not a valid command." % command)
|
|
self.myout.removeLast()
|
|
else:
|
|
if (numparams != -1) and (not len( params ) == numparams):
|
|
print("Usage: '%s'" % usage)
|
|
return
|
|
|
|
result = function( self.commands, params )
|
|
debugOut( "result was '%s'" % result )
|
|
|
|
def processStartupFile( self ):
|
|
"""Read and execute all commands found in $HOME/.bbsh_startup"""
|
|
if os.path.exists( self.startupfilename ):
|
|
startupfile = open( self.startupfilename, "r" )
|
|
for cmdline in startupfile:
|
|
debugOut( "processing startup line '%s'" % cmdline )
|
|
if not cmdline:
|
|
continue
|
|
if "|" in cmdline:
|
|
print("ERROR: '|' in startup file is not allowed. Ignoring line")
|
|
continue
|
|
self.commandQ.put( cmdline.strip() )
|
|
|
|
def main( self ):
|
|
"""The main command loop"""
|
|
while not leave_mainloop:
|
|
try:
|
|
if self.commandQ.empty():
|
|
sys.stdout = self.myout.delegate
|
|
cmdline = raw_input( "BB>> " )
|
|
sys.stdout = self.myout
|
|
else:
|
|
cmdline = self.commandQ.get()
|
|
if cmdline:
|
|
allCommands = cmdline.split( ';' )
|
|
for command in allCommands:
|
|
pipecmd = None
|
|
#
|
|
# special case for expert mode
|
|
if command == 'python':
|
|
sys.stdout = self.myout.delegate
|
|
self.processCommand( command, "" )
|
|
sys.stdout = self.myout
|
|
else:
|
|
self.myout.startCommand( command )
|
|
if '|' in command: # disable output
|
|
command, pipecmd = command.split( '|' )
|
|
delegate = self.myout.delegate
|
|
self.myout.delegate = None
|
|
tokens = shlex.split( command, True )
|
|
self.processCommand( tokens[0], tokens[1:] or "" )
|
|
self.myout.endCommand()
|
|
if pipecmd is not None: # restore output
|
|
self.myout.delegate = delegate
|
|
|
|
pipe = popen2.Popen4( pipecmd )
|
|
pipe.tochild.write( "\n".join( self.myout.lastBuffer() ) )
|
|
pipe.tochild.close()
|
|
sys.stdout.write( pipe.fromchild.read() )
|
|
#
|
|
except EOFError:
|
|
print()
|
|
return
|
|
except KeyboardInterrupt:
|
|
print()
|
|
|
|
##########################################################################
|
|
# Start function - called from the BitBake command line utility
|
|
##########################################################################
|
|
|
|
def start( aCooker ):
|
|
global cooker
|
|
cooker = aCooker
|
|
bbshell = BitBakeShell()
|
|
bbshell.processStartupFile()
|
|
bbshell.main()
|
|
bbshell.cleanup()
|
|
|
|
if __name__ == "__main__":
|
|
print("SHELL: Sorry, this program should only be called by BitBake.")
|