def uninstall_Windows():
"""
<Purpose>
Removes seattle from the Winodws registry startup key and/or the
startup folder should either exist, then stops all seattle processes using
stop_all_seattle_process.py
<Arguments>
None.
<Exceptions>
Possible IOError could be caused by filepath manipulation from a
sub-function.
SeattleNotInstalledError if seattle was not installed prior to uninstall.
<Side Effects>
Removes seattle from the Windows registry key and/or the Windows startup
folder if it exists in either place.
Stops seattle from running.
<Returns>
True if the uninstall succeeded. Currently, if uninstall fails, it must be
because seattle was not installed prior to uninstall. We must return a
boolean value for the parent function.
"""
# First see if seattle appears as a value in the Windows startup registry key,
# and remove it if it exists.
# removed_from_registry is used later and thus must have a value in case the
# try: block below raises an exception.
removed_from_registry = False
try:
removed_from_registry = remove_seattle_from_win_startup_registry()
except WindowsError:
print "The uninstaller does not have access to the Windows registry " \
+ "startup keys. This means that seattle is likely not installed in " \
+ "your Windows registry startup key, though you may want to " \
+ "manually check the following registry keys and remove seattle " \
+ "from those keys should it exist there: "
print "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run"
print "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run"
# Distinguish the above-printed text from what will be printed later by
# by printing a blank line.
print
servicelogger.log(" uninstaller could not access the Windows registry " \
+ "during this attempted uninstall.")
# Next, see if there is a link to the seattle starter script in the startup
# folder and remove it if it is there.
if not WIN_STARTUP_SCRIPT_PATH == None:
removed_from_startup_folder = \
remove_seattle_from_win_startup_folder()
# Check to see if uninstall actually removed seattle from the computer.
if not removed_from_registry and not removed_from_startup_folder:
raise SeattleNotInstalledError("Seattle could not be detected as " \
+ "having been installed prior to " \
+ "uninstall.")
elif removed_from_registry or removed_from_startup_folder:
# Stop all instances of seattle from running before returning.
stop_all_seattle_processes.main()
return True
def _stop_seattle_processes():
"""
<Purpose>
Kills all the seattle programs that are running.
<Arguments>
None
<Side Effects>
Kills all the seattle programs that are running.
If this fails, this process will be terminated.
<Exceptions>
None.
<Returns>
None.
"""
# Wrap the lock_acquired value so that it can referred to by reference
context = {'lock_acquired': False}
# 10 seconds should be enough time to get the lock on normal operation.
# Otherwise, assume we have a deadlock and exit.
wait_time = 10
def check_failed_lock_acquire():
for i in xrange(wait_time):
if context['lock_acquired']:
break
time.sleep(1)
else:
print>>sys.stderr, "Uninstallation cannot be completed; Failed to acquire lock."
harshexit.harshexit(1)
lock_check_thread = threading.Thread(target=check_failed_lock_acquire)
lock_check_thread.daemon = True
lock_check_thread.start()
# Stop all instances of seattle from running before returning.
stop_all_seattle_processes.main()
context['lock_acquired'] = True
def uninstall_Linux_and_Mac():
"""
<Purpose>
Remove the seattle entry from the crontab, and kill all seattle processes
by using stop_all_seattle_processes.py
<Arguments>
None.
<Exceptions>
SeattleNotInstalledError if seattle had not been initially installed when
the uninstaller was run.
UnsupportedOSError from a child function if the OS running this script is
not supported.
<Side Effects>
Removes the seattle entry from the crontab and stops seattle from running.
<Returns>
True if succeeded in uninstalling,
False otherwise.
"""
# Derek Cheng: Find out if this is a Nokia N800/900 Tablet, and if so runs a
# separate uninstaller because there is no crontab on the tablets.
if platform.machine().startswith('armv'):
return uninstall_nokia()
if platform.machine().startswith('mips'):
return True
# Find out if Seattle is installed (currently in the crontab), and remove if
# so.
crontab_contents_stdout = subprocess.Popen(["crontab","-l"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE).stdout
# Generate a temp file with the user's crontab minus our task.
temp_crontab_file = tempfile.NamedTemporaryFile()
seattle_crontab_entry_found = False
for line in crontab_contents_stdout:
if not seattleinstaller.get_starter_file_name() in line:
temp_crontab_file.write(line)
else:
seattle_crontab_entry_found = True
if not seattle_crontab_entry_found:
temp_crontab_file.close()
raise SeattleNotInstalledError("Seattle cannot be uninstalled because it " \
+ "is not currently installed.")
# Replace the old crontab with the updated crontab contents.
temp_crontab_file.flush()
replace_crontab = subprocess.Popen(["crontab",temp_crontab_file.name],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
replace_crontab.wait()
temp_crontab_file.close()
# Confirm that seattle was successfully removed from the crontab, and set
# the 'crontab_updated_for_2009_installer' value in nodeman.cfg to False.
modified_crontab_contents_stdout,modified_crontab_contents_stderr = \
subprocess.Popen(["crontab","-l"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE).communicate()
if seattleinstaller.get_starter_file_name() \
in modified_crontab_contents_stdout:
return False
else:
# Stop all instances of seattle from running before returning.
stop_all_seattle_processes.main()
configuration = persist.restore_object("nodeman.cfg")
configuration['crontab_updated_for_2009_installer'] = False
persist.commit_object(configuration,"nodeman.cfg")
return True
def uninstall_Windows():
"""
<Purpose>
Removes seattle from the Winodws registry startup key and/or the
startup folder should either exist, then stops all seattle processes using
stop_all_seattle_process.py
<Arguments>
None.
<Exceptions>
Possible IOError could be caused by filepath manipulation from a
sub-function.
SeattleNotInstalledError if seattle was not installed prior to uninstall.
<Side Effects>
Removes seattle from the Windows registry key and/or the Windows startup
folder if it exists in either place.
Stops seattle from running.
<Returns>
True if the uninstall succeeded. Currently, if uninstall fails, it must be
because seattle was not installed prior to uninstall. We must return a
boolean value for the parent function.
"""
# First see if seattle appears as a value in the Windows startup registry key,
# and remove it if it exists.
# removed_from_registry is used later and thus must have a value in case the
# try: block below raises an exception.
removed_from_registry = False
try:
removed_from_registry = remove_seattle_from_win_startup_registry()
except WindowsError:
print "The uninstaller does not have access to the Windows registry " \
+ "startup keys. This means that seattle is likely not installed in " \
+ "your Windows registry startup key, though you may want to " \
+ "manually check the following registry keys and remove seattle " \
+ "from those keys should it exist there: "
print "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run"
print "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run"
# Distinguish the above-printed text from what will be printed later by
# by printing a blank line.
print
servicelogger.log(" uninstaller could not access the Windows registry " \
+ "during this attempted uninstall.")
# Next, see if there is a link to the seattle starter script in the startup
# folder and remove it if it is there.
if not WIN_STARTUP_SCRIPT_PATH == None:
removed_from_startup_folder = \
remove_seattle_from_win_startup_folder()
# Check to see if uninstall actually removed seattle from the computer.
if not removed_from_registry and not removed_from_startup_folder:
raise SeattleNotInstalledError("Seattle could not be detected as " \
+ "having been installed prior to " \
+ "uninstall.")
elif removed_from_registry or removed_from_startup_folder:
# Stop all instances of seattle from running before returning.
stop_all_seattle_processes.main()
return True
os.remove(symlink_path)
# Cannot remove the symlink due to some reason.
except OSError, e:
# The symlink does not exist - that is fine.
if e.errno == errno.ENOENT:
pass
else:
# The symlink cannot be removed.
_output("The symlink cannot be removed. Make sure you have the " \
+ "permission to do so.")
servicelogger.log("Seattle cannot be uninstalled because " \
+ symlink_path + " cannot be removed.")
return False
# Stop all instances of seattle from running.
stop_all_seattle_processes.main()
return True
def uninstall_Linux_and_Mac():
"""
<Purpose>
Remove the seattle entry from the crontab, and kill all seattle processes
by using stop_all_seattle_processes.py
<Arguments>
None.
<Exceptions>
SeattleNotInstalledError if seattle had not been initially installed when
the uninstaller was run.
UnsupportedOSError from a child function if the OS running this script is
def uninstall_Linux_and_Mac():
"""
<Purpose>
Remove the seattle entry from the crontab, and kill all seattle processes
by using stop_all_seattle_processes.py
<Arguments>
None.
<Exceptions>
SeattleNotInstalledError if seattle had not been initially installed when
the uninstaller was run.
UnsupportedOSError from a child function if the OS running this script is
not supported.
<Side Effects>
Removes the seattle entry from the crontab and stops seattle from running.
<Returns>
True if succeeded in uninstalling,
False otherwise.
"""
# Derek Cheng: Find out if this is a Nokia N800/900 Tablet, and if so runs a
# separate uninstaller because there is no crontab on the tablets.
if platform.machine().startswith('armv'):
return uninstall_nokia()
if platform.machine().startswith('mips'):
return True
# Find out if Seattle is installed (currently in the crontab), and remove if
# so.
crontab_contents_stdout = subprocess.Popen(["crontab", "-l"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE).stdout
# Generate a temp file with the user's crontab minus our task.
temp_crontab_file = tempfile.NamedTemporaryFile()
seattle_crontab_entry_found = False
for line in crontab_contents_stdout:
if not seattleinstaller.get_starter_file_name() in line:
temp_crontab_file.write(line)
else:
seattle_crontab_entry_found = True
if not seattle_crontab_entry_found:
temp_crontab_file.close()
raise SeattleNotInstalledError("Seattle cannot be uninstalled because it " \
+ "is not currently installed.")
# Replace the old crontab with the updated crontab contents.
temp_crontab_file.flush()
replace_crontab = subprocess.Popen(["crontab", temp_crontab_file.name],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
replace_crontab.wait()
temp_crontab_file.close()
# Confirm that seattle was successfully removed from the crontab, and set
# the 'crontab_updated_for_2009_installer' value in nodeman.cfg to False.
modified_crontab_contents_stdout,modified_crontab_contents_stderr = \
subprocess.Popen(["crontab","-l"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE).communicate()
if seattleinstaller.get_starter_file_name() \
in modified_crontab_contents_stdout:
return False
else:
# Stop all instances of seattle from running before returning.
stop_all_seattle_processes.main()
configuration = persist.restore_object("nodeman.cfg")
configuration['crontab_updated_for_2009_installer'] = False
persist.commit_object(configuration, "nodeman.cfg")
return True
os.remove(symlink_path)
# Cannot remove the symlink due to some reason.
except OSError, e:
# The symlink does not exist - that is fine.
if e.errno == errno.ENOENT:
pass
else:
# The symlink cannot be removed.
_output("The symlink cannot be removed. Make sure you have the " \
+ "permission to do so.")
servicelogger.log("Seattle cannot be uninstalled because " \
+ symlink_path + " cannot be removed.")
return False
# Stop all instances of seattle from running.
stop_all_seattle_processes.main()
return True
def uninstall_Linux_and_Mac():
"""
<Purpose>
Remove the seattle entry from the crontab, and kill all seattle processes
by using stop_all_seattle_processes.py
<Arguments>
None.
<Exceptions>
SeattleNotInstalledError if seattle had not been initially installed when
the uninstaller was run.
UnsupportedOSError from a child function if the OS running this script is