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#!/usr/bin/env python3
#
# SPDX-License-Identifier: GPL-2.0-only
#
# This file re-uses code spread throughout other Bitbake source files.
# As such, all other copyrights belong to their own right holders.
#
import os
import sys
import json
import pickle
import codecs
class EventPlayer:
"""Emulate a connection to a bitbake server."""
def __init__(self, eventfile, variables):
self.eventfile = eventfile
self.variables = variables
self.eventmask = []
def waitEvent(self, _timeout):
"""Read event from the file."""
line = self.eventfile.readline().strip()
if not line:
return
try:
decodedline = json.loads(line)
if 'allvariables' in decodedline:
self.variables = decodedline['allvariables']
return
if not 'vars' in decodedline:
raise ValueError
event_str = decodedline['vars'].encode('utf-8')
event = pickle.loads(codecs.decode(event_str, 'base64'))
event_name = "%s.%s" % (event.__module__, event.__class__.__name__)
if event_name not in self.eventmask:
return
return event
except ValueError as err:
print("Failed loading ", line)
raise err
def runCommand(self, command_line):
"""Emulate running a command on the server."""
name = command_line[0]
if name == "getVariable":
var_name = command_line[1]
variable = self.variables.get(var_name)
if variable:
return variable['v'], None
return None, "Missing variable %s" % var_name
elif name == "getAllKeysWithFlags":
dump = {}
flaglist = command_line[1]
for key, val in self.variables.items():
try:
if not key.startswith("__"):
dump[key] = {
'v': val['v'],
'history' : val['history'],
}
for flag in flaglist:
dump[key][flag] = val[flag]
except Exception as err:
print(err)
return (dump, None)
elif name == 'setEventMask':
self.eventmask = command_line[-1]
return True, None
else:
raise Exception("Command %s not implemented" % command_line[0])
def getEventHandle(self):
"""
This method is called by toasterui.
The return value is passed to self.runCommand but not used there.
"""
pass
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