def initialize_logging(self):
log_file = self.config["main"]["log_file"]
if log_file == "default":
log_file = config_location() + "log"
ensure_dir_exists(log_file)
log_level = self.config["main"]["log_level"]
level_map = {
"CRITICAL": logging.CRITICAL,
"ERROR": logging.ERROR,
"WARNING": logging.WARNING,
"INFO": logging.INFO,
"DEBUG": logging.DEBUG,
}
# Disable logging if value is NONE by switching to a no-op handler
# Set log level to a high value so it doesn't even waste cycles getting called.
if log_level.upper() == "NONE":
handler = logging.NullHandler()
log_level = "CRITICAL"
elif dir_path_exists(log_file):
handler = logging.FileHandler(log_file)
else:
self.echo(
'Error: Unable to open the log file "{}".'.format(log_file),
err=True,
fg="red",
)
return
formatter = logging.Formatter(
"%(asctime)s (%(process)d/%(threadName)s) "
"%(name)s %(levelname)s - %(message)s"
)
handler.setFormatter(formatter)
root_logger = logging.getLogger("litecli")
root_logger.addHandler(handler)
root_logger.setLevel(level_map[log_level.upper()])
logging.captureWarnings(True)
root_logger.debug("Initializing litecli logging.")
root_logger.debug("Log file %r.", log_file)
def run_cli(self):
iterations = 0
sqlexecute = self.sqlexecute
logger = self.logger
self.configure_pager()
self.refresh_completions()
history_file = config_location() + "history"
if dir_path_exists(history_file):
history = FileHistory(history_file)
else:
history = None
self.echo(
'Error: Unable to open the history file "{}". '
"Your query history will not be saved.".format(history_file),
err=True,
fg="red",
)
key_bindings = cli_bindings(self)
if 0 and not self.less_chatty:
print("Version:", __version__)
print(
"Mail: https://groups.google.com/forum/#!forum/litecli-users")
print("Github: https://github.com/dbcli/litecli")
# print("Home: https://litecli.com")
def get_message():
prompt = self.get_prompt(self.prompt_format)
if (self.prompt_format == self.default_prompt
and len(prompt) > self.max_len_prompt):
prompt = self.get_prompt("\\d> ")
#print(prompt)
return [("class:prompt", '%s> ' % DBNAME)]
def get_continuation(width, line_number, is_soft_wrap):
continuation = " " * (width - 1) + " "
return [("class:continuation", continuation)]
def show_suggestion_tip():
return iterations < 2
def one_iteration(text=None):
if text is None:
try:
text = self.prompt_app.prompt()
except KeyboardInterrupt:
return
special.set_expanded_output(False)
try:
text = self.handle_editor_command(text)
except RuntimeError as e:
#logger.error("sql: %r, error: %r", text, e)
#logger.error("traceback: %r", traceback.format_exc())
self.showerr(e)
return
if not text.strip():
return
if self.destructive_warning:
destroy = confirm_destructive_query(text)
if destroy is None:
pass # Query was not destructive. Nothing to do here.
elif destroy is True:
self.echo("Your call!")
else:
self.echo("Wise choice!")
return
# Keep track of whether or not the query is mutating. In case
# of a multi-statement query, the overall query is considered
# mutating if any one of the component statements is mutating
mutating = False
try:
logger.debug("sql: %r", text)
special.write_tee(self.get_prompt(self.prompt_format) + text)
if self.logfile:
self.logfile.write("\n# %s\n" % datetime.now())
self.logfile.write(text)
self.logfile.write("\n")
successful = False
start = time()
res = sqlexecute.run(text, DBNAME)
self.formatter.query = text
successful = True
result_count = 0
for title, cur, headers, status in res:
logger.debug("headers: %r", headers)
logger.debug("rows: %r", cur)
logger.debug("status: %r", status)
threshold = 1000
if is_select(status) and cur and cur.rowcount > threshold:
self.echo(
"The result set has more than {} rows.".format(
threshold),
fg="red",
)
if not confirm("Do you want to continue?"):
self.echo("Aborted!", err=True, fg="red")
break
if self.auto_vertical_output:
max_width = self.prompt_app.output.get_size().columns
else:
max_width = None
formatted = self.format_output(
title, cur, headers, special.is_expanded_output(),
max_width)
t = time() - start
try:
if result_count > 0:
self.echo("")
try:
self.output(formatted, status)
except KeyboardInterrupt:
pass
self.echo("Time: %0.03fs" % t)
except KeyboardInterrupt:
pass
start = time()
result_count += 1
mutating = mutating or is_mutating(status)
special.unset_once_if_written()
except EOFError as e:
raise e
except KeyboardInterrupt:
# get last connection id
connection_id_to_kill = sqlexecute.connection_id
logger.debug("connection id to kill: %r",
connection_id_to_kill)
# Restart connection to the database
sqlexecute.connect()
try:
for title, cur, headers, status in sqlexecute.run(
"kill %s" % connection_id_to_kill):
status_str = str(status).lower()
if status_str.find("ok") > -1:
logger.debug(
"cancelled query, connection id: %r, sql: %r",
connection_id_to_kill,
text,
)
self.echo("cancelled query", err=True, fg="red")
except Exception as e:
self.echo(
"Encountered error while cancelling query: {}".format(
e),
err=True,
fg="red",
)
except NotImplementedError:
self.echo("Not Yet Implemented.", fg="yellow")
except OperationalError as e:
logger.debug("Exception: %r", e)
if e.args[0] in (2003, 2006, 2013):
logger.debug("Attempting to reconnect.")
self.echo("Reconnecting...", fg="yellow")
try:
sqlexecute.connect()
logger.debug("Reconnected successfully.")
one_iteration(text)
return # OK to just return, cuz the recursion call runs to the end.
except OperationalError as e:
logger.debug("Reconnect failed. e: %r", e)
self.echo(str(e), err=True, fg="red")
# If reconnection failed, don't proceed further.
return
else:
#logger.error("sql: %r, error: %r", text, e)
#logger.error("traceback: %r", traceback.format_exc())
self.showerr(e)
except Exception as e:
#logger.error("sql: %r, error: %r", text, e)
#logger.error("traceback: %r", traceback.format_exc())
self.showerr(e)
else:
if is_dropping_database(text, self.sqlexecute.dbname):
self.sqlexecute.dbname = None
self.sqlexecute.connect()
# Refresh the table names and column names if necessary.
if need_completion_refresh(text):
self.refresh_completions(reset=need_completion_reset(text))
finally:
if self.logfile is False:
self.echo("Warning: This query was not logged.",
err=True,
fg="red")
query = Query(text, successful, mutating)
self.query_history.append(query)
get_toolbar_tokens = create_toolbar_tokens_func(
self, show_suggestion_tip)
if self.wider_completion_menu:
complete_style = CompleteStyle.MULTI_COLUMN
else:
complete_style = CompleteStyle.COLUMN
with self._completer_lock:
if self.key_bindings == "vi":
editing_mode = EditingMode.VI
else:
editing_mode = EditingMode.EMACS
self.prompt_app = PromptSession(
lexer=PygmentsLexer(LiteCliLexer),
reserve_space_for_menu=self.get_reserved_space(),
message=get_message,
prompt_continuation=get_continuation,
bottom_toolbar=get_toolbar_tokens,
complete_style=complete_style,
input_processors=[
ConditionalProcessor(
processor=HighlightMatchingBracketProcessor(
chars="[](){}"),
filter=HasFocus(DEFAULT_BUFFER) & ~IsDone(),
)
],
tempfile_suffix=".sql",
completer=DynamicCompleter(lambda: self.completer),
history=history,
auto_suggest=AutoSuggestFromHistory(),
complete_while_typing=True,
multiline=cli_is_multiline(self),
style=style_factory(self.syntax_style, self.cli_style),
include_default_pygments_style=False,
key_bindings=key_bindings,
enable_open_in_editor=True,
enable_system_prompt=True,
enable_suspend=True,
editing_mode=editing_mode,
search_ignore_case=True,
)
try:
while True:
one_iteration()
iterations += 1
except EOFError:
special.close_tee()
if not self.less_chatty:
self.echo("Goodbye!")