# ex:ts=4:sw=4:sts=4:et # -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- ########################################################################## # # Copyright (C) 2005-2006 Michael 'Mickey' Lauer # Copyright (C) 2005-2006 Vanille Media # # 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. # ########################################################################## # # Thanks to: # * Holger Freyther # * Justin Patrin # ########################################################################## """ BitBake Shell IDEAS: * list defined tasks per package * list classes * toggle force * command to reparse just one (or more) bbfile(s) * automatic check if reparsing is necessary (inotify?) * frontend for bb file manipulation * more shell-like features: - output control, i.e. pipe output into grep, sort, etc. - job control, i.e. bring running commands into background and foreground * start parsing in background right after startup * ncurses interface PROBLEMS: * force doesn't always work * readline completion for commands with more than one parameters """ ########################################################################## # Import and setup global variables ########################################################################## try: set except NameError: from sets import Set as set import sys, os, readline, socket, httplib, urllib, commands, popen2, copy, shlex, Queue, fnmatch from bb import data, parse, build, fatal, cache, taskdata, runqueue, providers as Providers __version__ = "0.5.3.1" __credits__ = """BitBake Shell Version %s (C) 2005 Michael 'Mickey' Lauer Type 'help' for more information, press CTRL-D to exit.""" % __version__ cmds = {} leave_mainloop = False last_exception = None cooker = None parsed = False debug = os.environ.get( "BBSHELL_DEBUG", "" ) ########################################################################## # Class BitBakeShellCommands ########################################################################## class BitBakeShellCommands: """This class contains the valid commands for the shell""" def __init__( self, shell ): """Register all the commands""" self._shell = shell for attr in BitBakeShellCommands.__dict__: if not attr.startswith( "_" ): if attr.endswith( "_" ): command = attr[:-1].lower() else: command = attr[:].lower() method = getattr( BitBakeShellCommands, attr ) debugOut( "registering command '%s'" % command ) # scan number of arguments usage = getattr( method, "usage", "" ) if usage != "<...>": numArgs = len( usage.split() ) else: numArgs = -1 shell.registerCommand( command, method, numArgs, "%s %s" % ( command, usage ), method.__doc__ ) def _checkParsed( self ): if not parsed: print "SHELL: This command needs to parse bbfiles..." self.parse( None ) def _findProvider( self, item ): self._checkParsed() # Need to use taskData for this information 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: if item in cooker.status.providers: pf = cooker.status.providers[item][0] else: pf = None return pf def alias( self, params ): """Register a new name for a command""" new, old = params if not old in cmds: print "ERROR: Command '%s' not known" % old else: cmds[new] = cmds[old] print "OK" alias.usage = " " def buffer( self, params ): """Dump specified output buffer""" index = params[0] print self._shell.myout.buffer( int( index ) ) buffer.usage = "" def buffers( self, params ): """Show the available output buffers""" commands = self._shell.myout.bufferedCommands() if not commands: print "SHELL: No buffered commands available yet. Start doing something." else: print "="*35, "Available Output Buffers", "="*27 for index, cmd in enumerate( commands ): print "| %s %s" % ( str( index ).ljust( 3 ), cmd ) print "="*88 def build( self, params, cmd = "build" ): """Build a providee""" global last_exception globexpr = params[0] self._checkParsed() names = globfilter( cooker.status.pkg_pn, globexpr ) if len( names ) == 0: names = [ globexpr ] print "SHELL: Building %s" % ' '.join( names ) td = taskdata.TaskData(cooker.configuration.abort) localdata = data.createCopy(cooker.configuration.data) data.update_data(localdata) data.expandKeys(localdata) try: tasks = [] for name in names: td.add_provider(localdata, cooker.status, name) providers = td.get_provider(name) if len(providers) == 0: raise Providers.NoProvider tasks.append([name, "do_%s" % cmd]) td.add_unresolved(localdata, cooker.status) rq = runqueue.RunQueue(cooker, localdata, cooker.status, td, tasks) rq.prepare_runqueue() rq.execute_runqueue() except Providers.NoProvider: print "ERROR: No Provider" last_exception = Providers.NoProvider except runqueue.TaskFailure, fnids: for fnid in fnids: print "ERROR: '%s' failed" % td.fn_index[fnid] last_exception = runqueue.TaskFailure except build.EventException, e: print "ERROR: Couldn't build '%s'" % names last_exception = e build.usage = "" def clean( self, params ): """Clean a providee""" self.build( params, "clean" ) clean.usage = "" def compile( self, params ): """Execute 'compile' on a providee""" self.build( params, "compile" ) compile.usage = "" def configure( self, params ): """Execute 'configure' on a providee""" self.build( params, "configure" ) configure.usage = "" def install( self, params ): """Execute 'install' on a providee""" self.build( params, "install" ) install.usage = "" def edit( self, params ): """Call $EDITOR on a providee""" name = params[0] bbfile = self._findProvider( name ) if bbfile is not None: os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), bbfile ) ) else: print "ERROR: Nothing provides '%s'" % name edit.usage = "" def environment( self, params ): """Dump out the outer BitBake environment""" cooker.showEnvironment() def exit_( self, params ): """Leave the BitBake Shell""" debugOut( "setting leave_mainloop to true" ) global leave_mainloop leave_mainloop = True def fetch( self, params ): """Fetch a providee""" self.build( params, "fetch" ) fetch.usage = "" def fileBuild( self, params, cmd = "build" ): """Parse and build a .bb file""" global last_exception name = params[0] bf = completeFilePath( name ) print "SHELL: Calling '%s' on '%s'" % ( cmd, bf ) try: cooker.buildFile(bf, cmd) except parse.ParseError: print "ERROR: Unable to open or parse '%s'" % bf except build.EventException, e: print "ERROR: Couldn't build '%s'" % name last_exception = e fileBuild.usage = "" def fileClean( self, params ): """Clean a .bb file""" self.fileBuild( params, "clean" ) fileClean.usage = "" def fileEdit( self, params ): """Call $EDITOR on a .bb file""" name = params[0] os.system( "%s %s" % ( os.environ.get( "EDITOR", "vi" ), completeFilePath( name ) ) ) fileEdit.usage = "" def fileRebuild( self, params ): """Rebuild (clean & build) a .bb file""" self.fileBuild( params, "rebuild" ) fileRebuild.usage = "" def fileReparse( self, params ): """(re)Parse a bb file""" bbfile = params[0] print "SHELL: Parsing '%s'" % bbfile parse.update_mtime( bbfile ) cooker.bb_cache.cacheValidUpdate(bbfile) fromCache = cooker.bb_cache.loadData(bbfile, cooker.configuration.data, cooker.status) cooker.bb_cache.sync() if False: #fromCache: print "SHELL: File has not been updated, not reparsing" else: print "SHELL: Parsed" fileReparse.usage = "" def abort( self, params ): """Toggle abort task execution flag (see bitbake -k)""" cooker.configuration.abort = not cooker.configuration.abort print "SHELL: Abort Flag is now '%s'" % repr( cooker.configuration.abort ) def force( self, params ): """Toggle force task execution flag (see bitbake -f)""" cooker.configuration.force = not cooker.configuration.force print "SHELL: Force Flag is now '%s'" % repr( cooker.configuration.force ) def help( self, params ): """Show a comprehensive list of commands and their purpose""" print "="*30, "Available Commands", "="*30 for cmd in sorted(cmds): function,numparams,usage,helptext = cmds[cmd] print "| %s | %s" % (usage.ljust(30), helptext) print "="*78 def lastError( self, params ): """Show the reason or log that was produced by the last BitBake event exception""" if last_exception is None: print "SHELL: No Errors yet (Phew)..." else: reason, event = last_exception.args print "SHELL: Reason for the last error: '%s'" % reason if ':' in reason: msg, filename = reason.split( ':' ) filename = filename.strip() print "SHELL: Dumping log file for last error:" try: print open( filename ).read() except IOError: print "ERROR: Couldn't open '%s'" % filename def match( self, params ): """Dump all files or providers matching a glob expression""" what, globexpr = params if what == "files": self._checkParsed() for key in globfilter( cooker.status.pkg_fn, globexpr ): print key elif what == "providers": self._checkParsed() for key in globfilter( cooker.status.pkg_pn, globexpr ): print key else: print "Usage: match %s" % self.print_.usage match.usage = " " def new( self, params ): """Create a new .bb file and open the editor""" dirname, filename = params packages = '/'.join( data.getVar( "BBFILES", cooker.configuration.data, 1 ).split('/')[:-2] ) fulldirname = "%s/%s" % ( packages, dirname ) if not os.path.exists( fulldirname ): print "SHELL: Creating '%s'" % fulldirname os.mkdir( fulldirname ) if os.path.exists( fulldirname ) and os.path.isdir( fulldirname ): if os.path.exists( "%s/%s" % ( fulldirname, filename ) ): print "SHELL: ERROR: %s/%s already exists" % ( fulldirname, filename ) return False print "SHELL: Creating '%s/%s'" % ( fulldirname, filename ) newpackage = open( "%s/%s" % ( fulldirname, filename ), "w" ) print >>newpackage,"""DESCRIPTION = "" SECTION = "" AUTHOR = "" HOMEPAGE = "" MAINTAINER = "" LICENSE = "GPL" PR = "r0" SRC_URI = "" #inherit base #do_configure() { # #} #do_compile() { # #} #do_stage() { # #} #do_install() { # #} """ newpackage.close() os.system( "%s %s/%s" % ( os.environ.get( "EDITOR" ), fulldirname, filename ) ) new.usage = " " def package( self, params ): """Execute 'package' on a providee""" self.build( params, "package" ) package.usage = "" def pasteBin( self, params ): """Send a command + output buffer to the pastebin at http://rafb.net/paste""" index = params[0] contents = self._shell.myout.buffer( int( index ) ) sendToPastebin( "output of " + params[0], contents ) pasteBin.usage = "" def pasteLog( self, params ): """Send the last event exception error log (if there is one) to http://rafb.net/paste""" if last_exception is None: print "SHELL: No Errors yet (Phew)..." else: reason, event = last_exception.args print "SHELL: Reason for the last error: '%s'" % reason if ':' in reason: msg, filename = reason.split( ':' ) filename = filename.strip() print "SHELL: Pasting log file to pastebin..." file = open( filename ).read() sendToPastebin( "contents of " + filename, file ) def patch( self, params ): """Execute 'patch' command on a providee""" self.build( params, "patch" ) patch.usage = "" def parse( self, params ): """(Re-)parse .bb files and calculate the dependency graph""" cooker.status = cache.CacheData() ignore = data.getVar("ASSUME_PROVIDED", cooker.configuration.data, 1) or "" cooker.status.ignored_dependencies = set( ignore.split() ) cooker.handleCollections( data.getVar("BBFILE_COLLECTIONS", cooker.configuration.data, 1) ) (filelist, masked) = cooker.collect_bbfiles() cooker.parse_bbfiles(filelist, masked, cooker.myProgressCallback) cooker.buildDepgraph() global parsed parsed = True print def reparse( self, params ): """(re)Parse a providee's bb file""" bbfile = self._findProvider( params[0] ) if bbfile is not None: print "SHELL: Found bbfile '%s' for '%s'" % ( bbfile, params[0] ) self.fileReparse( [ bbfile ] ) else: print "ERROR: Nothing provides '%s'" % params[0] reparse.usage = "" def getvar( self, params ): """Dump the contents of an outer BitBake environment variable""" var = params[0] value = data.getVar( var, cooker.configuration.data, 1 ) print value getvar.usage = "" def peek( self, params ): """Dump contents of variable defined in providee's metadata""" name, var = params bbfile = self._findProvider( name ) if bbfile is not None: the_data = cooker.bb_cache.loadDataFull(bbfile, cooker.configuration.data) value = the_data.getVar( var, 1 ) print value else: print "ERROR: Nothing provides '%s'" % name peek.usage = " " def poke( self, params ): """Set contents of variable defined in providee's metadata""" name, var, value = params bbfile = self._findProvider( name ) if bbfile is not None: print "ERROR: Sorry, this functionality is currently broken" #d = cooker.pkgdata[bbfile] #data.setVar( var, value, d ) # mark the change semi persistant #cooker.pkgdata.setDirty(bbfile, d) #print "OK" else: print "ERROR: Nothing provides '%s'" % name poke.usage = " " def print_( self, params ): """Dump all files or providers""" what = params[0] if what == "files": self._checkParsed() for key in cooker.status.pkg_fn: print key elif what == "providers": self._checkParsed() for key in cooker.status.providers: print key else: print "Usage: print %s" % self.print_.usage print_.usage = "" def python( self, params ): """Enter the expert mode - an interactive BitBake Python Interpreter""" sys.ps1 = "EXPERT BB>>> " sys.ps2 = "EXPERT BB... " import code interpreter = code.InteractiveConsole( dict( globals() ) ) interpreter.interact( "SHELL: Expert Mode - BitBake Python %s\nType 'help' for more information, press CTRL-D to switch back to BBSHELL." % sys.version ) def showdata( self, params ): """Execute 'showdata' on a providee""" cooker.showEnvironment(None, params) showdata.usage = "" def setVar( self, params ): """Set an outer BitBake environment variable""" var, value = params data.setVar( var, value, cooker.configuration.data ) print "OK" setVar.usage = " " def rebuild( self, params ): """Clean and rebuild a .bb file or a providee""" self.build( params, "clean" ) self.build( params, "build" ) rebuild.usage = "" 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 = "" def status( self, params ): """""" 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 ): """""" print "testCommand called with '%s'" % params def unpack( self, params ): """Execute 'unpack' on a providee""" self.build( params, "unpack" ) unpack.usage = "" 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 = "" ########################################################################## # 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 == "": allmatches = cooker.configuration.data.keys() elif u == "": 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 == "": 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 "" 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."