def collect_output(self, buffer):
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
if not self.driver.solver.ready:
sels = self.driver.solver.selections
buffer.insert_at_cursor("Can't run:\n{reason}".format(
reason=self.driver.solver.get_failure_reason()))
return
uncached = self.driver.get_uncached_implementations()
if uncached:
buffer.insert_at_cursor(
"Can't run: the chosen versions have not been downloaded yet. I need:\n\n- "
+ "\n\n- ".join([
'%s version %s\n (%s)' %
(x[0].uri, x[1].get_version(), x[1].id) for x in uncached
]))
return
sels = self.driver.solver.selections
doc = sels.toDOM()
self.hide()
try:
gtk.gdk.flush()
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
# Tell 0launch to run the program
doc.documentElement.setAttribute('run-test', 'true')
payload = doc.toxml('utf-8')
if sys.version_info[0] > 2:
stdout = sys.stdout.buffer
else:
stdout = sys.stdout
stdout.write(('Length:%8x\n' % len(payload)).encode('utf-8') +
payload)
stdout.flush()
reply = support.read_bytes(0, len('Length:') + 9)
assert reply.startswith(b'Length:')
test_output = support.read_bytes(0,
int(reply.split(b':', 1)[1], 16))
# Cope with invalid UTF-8
import codecs
decoder = codecs.getdecoder('utf-8')
data = decoder(test_output, 'replace')[0]
buffer.insert_at_cursor(data)
finally:
self.show()
def collect_output(self, buffer):
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
if not self.policy.ready:
missing = [
iface.uri for iface in self.policy.implementation
if self.policy.implementation[iface] is None
]
buffer.insert_at_cursor(
"Can't run: no version has been selected for:\n- " +
"\n- ".join(missing))
return
uncached = self.policy.get_uncached_implementations()
if uncached:
buffer.insert_at_cursor(
"Can't run: the chosen versions have not been downloaded yet. I need:\n\n- "
+ "\n\n- ".join([
'%s version %s\n (%s)' %
(x[0].uri, x[1].get_version(), x[1].id) for x in uncached
]))
return
from zeroinstall.injector import selections
sels = selections.Selections(self.policy)
doc = sels.toDOM()
self.hide()
try:
gtk.gdk.flush()
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
# Tell 0launch to run the program
doc.documentElement.setAttribute('run-test', 'true')
payload = doc.toxml('utf-8')
sys.stdout.write(('Length:%8x\n' % len(payload)) + payload)
sys.stdout.flush()
reply = support.read_bytes(0, len('Length:') + 9)
assert reply.startswith('Length:')
test_output = support.read_bytes(0,
int(reply.split(':', 1)[1], 16))
# Cope with invalid UTF-8
import codecs
decoder = codecs.getdecoder('utf-8')
data = decoder(test_output, 'replace')[0]
buffer.insert_at_cursor(data)
finally:
self.show()
def collect_output(self, buffer):
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
if not self.driver.solver.ready:
sels = self.driver.solver.selections
buffer.insert_at_cursor("Can't run:\n{reason}".format(
reason = self.driver.solver.get_failure_reason()))
return
uncached = self.driver.get_uncached_implementations()
if uncached:
buffer.insert_at_cursor("Can't run: the chosen versions have not been downloaded yet. I need:\n\n- " +
"\n\n- " . join(['%s version %s\n (%s)' %(x[0].uri, x[1].get_version(), x[1].id) for x in uncached]))
return
sels = self.driver.solver.selections
doc = sels.toDOM()
self.hide()
try:
gtk.gdk.flush()
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
# Tell 0launch to run the program
doc.documentElement.setAttribute('run-test', 'true')
payload = doc.toxml('utf-8')
if sys.version_info[0] > 2:
stdout = sys.stdout.buffer
else:
stdout = sys.stdout
stdout.write(('Length:%8x\n' % len(payload)).encode('utf-8') + payload)
stdout.flush()
reply = support.read_bytes(0, len('Length:') + 9)
assert reply.startswith(b'Length:')
test_output = support.read_bytes(0, int(reply.split(b':', 1)[1], 16))
# Cope with invalid UTF-8
import codecs
decoder = codecs.getdecoder('utf-8')
data = decoder(test_output, 'replace')[0]
buffer.insert_at_cursor(data)
finally:
self.show()
def collect_output(self, buffer):
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
if not self.policy.ready:
missing = [iface.uri for iface in self.policy.implementation if self.policy.implementation[iface] is None]
buffer.insert_at_cursor("Can't run: no version has been selected for:\n- " + "\n- ".join(missing))
return
uncached = self.policy.get_uncached_implementations()
if uncached:
buffer.insert_at_cursor(
"Can't run: the chosen versions have not been downloaded yet. I need:\n\n- "
+ "\n\n- ".join(["%s version %s\n (%s)" % (x[0].uri, x[1].get_version(), x[1].id) for x in uncached])
)
return
from zeroinstall.injector import selections
sels = selections.Selections(self.policy)
doc = sels.toDOM()
self.hide()
try:
gtk.gdk.flush()
iter = buffer.get_end_iter()
buffer.place_cursor(iter)
# Tell 0launch to run the program
doc.documentElement.setAttribute("run-test", "true")
payload = doc.toxml("utf-8")
sys.stdout.write(("Length:%8x\n" % len(payload)) + payload)
sys.stdout.flush()
reply = support.read_bytes(0, len("Length:") + 9)
assert reply.startswith("Length:")
test_output = support.read_bytes(0, int(reply.split(":", 1)[1], 16))
# Cope with invalid UTF-8
import codecs
decoder = codecs.getdecoder("utf-8")
data = decoder(test_output, "replace")[0]
buffer.insert_at_cursor(data)
finally:
self.show()
def get_selections_gui(iface_uri, gui_args, test_callback = None, use_gui = True):
"""Run the GUI to choose and download a set of implementations.
The user may ask the GUI to submit a bug report about the program. In that case,
the GUI may ask us to test it. test_callback is called in that case with the implementations
to be tested; the callback will typically call L{zeroinstall.injector.run.test_selections} and return the result of that.
@param iface_uri: the required program, or None to show just the preferences dialog
@type iface_uri: str
@param gui_args: any additional arguments for the GUI itself
@type gui_args: [str]
@param test_callback: function to use to try running the program
@type test_callback: L{zeroinstall.injector.selections.Selections} -> str
@param use_gui: if True, raise a SafeException if the GUI is not available. If None, returns DontUseGUI if the GUI cannot be started. If False, returns DontUseGUI always. (since 1.11)
@param use_gui: bool | None
@return: the selected implementations
@rtype: L{zeroinstall.injector.selections.Selections}
@since: 0.28
"""
if use_gui is False:
return DontUseGUI
if 'DISPLAY' not in os.environ:
if use_gui is None:
return DontUseGUI
else:
raise SafeException("Can't use GUI because $DISPLAY is not set")
from zeroinstall.injector import selections, qdom
from io import BytesIO
from os.path import join, dirname
gui_exe = join(dirname(__file__), '0launch-gui', '0launch-gui')
import socket
cli, gui = socket.socketpair()
try:
child = os.fork()
if child == 0:
# We are the child (GUI)
try:
try:
cli.close()
# We used to use pipes to support Python2.3...
os.dup2(gui.fileno(), 1)
os.dup2(gui.fileno(), 0)
if use_gui is True:
gui_args = ['-g'] + gui_args
if iface_uri is not None:
gui_args = gui_args + ['--', iface_uri]
os.execvp(sys.executable, [sys.executable, gui_exe] + gui_args)
except:
import traceback
traceback.print_exc(file = sys.stderr)
finally:
sys.stderr.flush()
os._exit(1)
# We are the parent (CLI)
gui.close()
gui = None
while True:
logger.info("Waiting for selections from GUI...")
reply = support.read_bytes(cli.fileno(), len('Length:') + 9, null_ok = True)
if reply:
if not reply.startswith(b'Length:'):
raise Exception("Expected Length:, but got %s" % repr(reply))
reply = reply.decode('ascii')
xml = support.read_bytes(cli.fileno(), int(reply.split(':', 1)[1], 16))
dom = qdom.parse(BytesIO(xml))
sels = selections.Selections(dom)
if dom.getAttribute('run-test'):
logger.info("Testing program, as requested by GUI...")
if test_callback is None:
output = b"Can't test: no test_callback was passed to get_selections_gui()\n"
else:
output = test_callback(sels)
logger.info("Sending results to GUI...")
output = ('Length:%8x\n' % len(output)).encode('utf-8') + output
logger.debug("Sending: %s", repr(output))
while output:
sent = cli.send(output)
output = output[sent:]
continue
else:
sels = None
pid, status = os.waitpid(child, 0)
assert pid == child
if status == 1 << 8:
logger.info("User cancelled the GUI; aborting")
return None # Aborted
elif status == 100 << 8:
if use_gui is None:
return DontUseGUI
else:
raise SafeException("No GUI available")
if status != 0:
raise Exception("Error from GUI: code = %d" % status)
break
finally:
for sock in [cli, gui]:
if sock is not None: sock.close()
return sels
def get_selections_gui(iface_uri, gui_args, test_callback = None, use_gui = True):
"""Run the GUI to choose and download a set of implementations.
The user may ask the GUI to submit a bug report about the program. In that case,
the GUI may ask us to test it. test_callback is called in that case with the implementations
to be tested; the callback will typically call L{zeroinstall.injector.run.test_selections} and return the result of that.
@param iface_uri: the required program, or None to show just the preferences dialog
@type iface_uri: str
@param gui_args: any additional arguments for the GUI itself
@type gui_args: [str]
@param test_callback: function to use to try running the program
@type test_callback: L{zeroinstall.injector.selections.Selections} -> str
@param use_gui: if True, raise a SafeException if the GUI is not available. If None, returns DontUseGUI if the GUI cannot be started. If False, returns DontUseGUI always. (since 1.11)
@param use_gui: bool | None
@return: the selected implementations
@rtype: L{zeroinstall.injector.selections.Selections}
@since: 0.28
"""
if use_gui is False:
return DontUseGUI
if 'DISPLAY' not in os.environ:
if use_gui is None:
return DontUseGUI
else:
raise SafeException("Can't use GUI because $DISPLAY is not set")
from zeroinstall.injector import selections, qdom
from io import BytesIO
from os.path import join, dirname
gui_exe = join(dirname(__file__), '0launch-gui', '0launch-gui')
import socket
cli, gui = socket.socketpair()
try:
child = os.fork()
if child == 0:
# We are the child (GUI)
try:
try:
cli.close()
# We used to use pipes to support Python2.3...
os.dup2(gui.fileno(), 1)
os.dup2(gui.fileno(), 0)
if use_gui is True:
gui_args = ['-g'] + gui_args
if iface_uri is not None:
gui_args = gui_args + ['--', iface_uri]
os.execvp(sys.executable, [sys.executable, gui_exe] + gui_args)
except:
import traceback
traceback.print_exc(file = sys.stderr)
finally:
sys.stderr.flush()
os._exit(1)
# We are the parent (CLI)
gui.close()
gui = None
while True:
logger.info("Waiting for selections from GUI...")
reply = support.read_bytes(cli.fileno(), len('Length:') + 9, null_ok = True)
if reply:
if not reply.startswith(b'Length:'):
raise Exception("Expected Length:, but got %s" % repr(reply))
reply = reply.decode('ascii')
xml = support.read_bytes(cli.fileno(), int(reply.split(':', 1)[1], 16))
dom = qdom.parse(BytesIO(xml))
sels = selections.Selections(dom)
if dom.getAttribute('run-test'):
logger.info("Testing program, as requested by GUI...")
if test_callback is None:
output = b"Can't test: no test_callback was passed to get_selections_gui()\n"
else:
output = test_callback(sels)
logger.info("Sending results to GUI...")
output = ('Length:%8x\n' % len(output)).encode('utf-8') + output
logger.debug("Sending: %s", repr(output))
while output:
sent = cli.send(output)
output = output[sent:]
continue
else:
sels = None
pid, status = os.waitpid(child, 0)
assert pid == child
if status == 1 << 8:
logger.info("User cancelled the GUI; aborting")
return None # Aborted
elif status == 100 << 8:
if use_gui is None:
return DontUseGUI
else:
raise SafeException("No GUI available")
if status != 0:
raise Exception("Error from GUI: code = %d" % status)
break
finally:
for sock in [cli, gui]:
if sock is not None: sock.close()
return sels
def read_chunk():
l = support.read_bytes(0, 8, null_ok = True)
logger.debug("Read '%s' from master", l)
if not l: return None
return support.read_bytes(0, int(l, 16))
