def _ask_command(command):
if not console_utils.stdin_is_interactive():
return None
if platform.system() == 'Windows':
other = 'windows'
else:
other = 'unix'
choices = {'b': 'bokeh_app', 'c': other, 'n': 'notebook'}
while True:
data = console_utils.console_input(
"Is `{}` a (B)okeh app, (N)otebook, or (C)ommand line? ".format(
command))
data = data.lower().strip()
if len(data) == 0 or data[0] not in choices:
print("Please enter 'b', 'n', or 'c'.")
print(
" A Bokeh app is the project-relative path to a Bokeh script or app directory."
)
print(
" A notebook file is the project-relative path to a .ipynb file."
)
print(
" A command line is any command you might type at the command prompt."
)
continue
return choices[data]
def load_project(dirname):
"""Load a Project, fixing it if needed and possible."""
project = Project(dirname, frontend=CliFrontend(), must_exist=True)
# No sense in engaging the user if we cannot achieve a fixed state.
if project.unfixable_problems:
return project
if console_utils.stdin_is_interactive():
regressions = 0
problems = project.fixable_problems
while problems and regressions < 3:
# Instead of looping through the problems in the list, we
# fix only the first one and refresh the list. This allows
# us to detect when fixing one problem impacts another,
# positively or negatively.
problem = problems[0]
print(problem.text)
should_fix = console_utils.console_ask_yes_or_no(problem.fix_prompt, default=False)
if not should_fix:
break
problem.fix(project)
project.use_changes_without_saving()
o_problems, problems = problems, project.fixable_problems
# If the number of problems doesn't decrease as a result of
# fixing a problem, it suggests some sort of negative cycle.
# We can't reliably detect a cycle, so instead we simply let
# this happen 3 times before we give up.
regressions += (len(problems) >= len(o_problems))
if not problems:
project.save()
return project
def _interactively_fix_missing_variables(project, result):
"""Return True if we need to re-prepare."""
if project.problems:
return False
if not console_utils.stdin_is_interactive():
return False
# We don't ask the user to manually enter CONDA_PREFIX
# (CondaEnvRequirement) because it's a bizarre/confusing
# thing to ask.
can_ask_about = [
status for status in result.statuses
if (not status and isinstance(status.requirement, EnvVarRequirement)
and not isinstance(status.requirement, CondaEnvRequirement))
]
if can_ask_about:
print("(Use Ctrl+C to quit.)")
start_over = False
values = dict()
for status in can_ask_about:
reply = console_utils.console_input(
"Value for " + status.requirement.env_var + ": ",
encrypted=status.requirement.encrypted)
if reply is None:
return False # EOF
reply = reply.strip()
if reply == '':
start_over = True
break
values[status.requirement.env_var] = reply
if len(values) > 0:
status = project_ops.set_variables(project, result.env_spec_name,
values.items(), result)
if status:
return True
else:
console_utils.print_status_errors(status)
return False
else:
return start_over
def load_project(dirname):
"""Load a Project, fixing it if needed and possible."""
project = Project(dirname, frontend=CliFrontend())
if console_utils.stdin_is_interactive():
had_fixable = len(project.fixable_problems) > 0
for problem in project.fixable_problems:
print(problem.text)
should_fix = console_utils.console_ask_yes_or_no(problem.fix_prompt, default=False)
if should_fix:
problem.fix(project)
else:
problem.no_fix(project)
# both fix() and no_fix() can modify project_file, if no changes
# were made this is a no-op.
if had_fixable:
project.save()
return project
def test_stdin_is_interactive(monkeypatch):
result = console_utils.stdin_is_interactive()
assert result is True or result is False
def handle_bugs(main_func, program_name, details_dict):
"""Invoke main entry point, handling uncaught exceptions.
Args:
main_func (function): a main()-style function returning an exit status
program_name (str): name of the app
details_dict (dict): dictionary of stuff to include in the bug report file
Returns:
an exit status code from main_func or 1 on uncaught exception
"""
slugified_program_name = slugify(program_name)
try:
return main_func()
except KeyboardInterrupt:
# KeyboardInterrupt doesn't derive from Exception, but the default handler
# prints a stack trace which is sort of ugly, so we replace the default
# with this.
print("%s was interrupted." % program_name, file=sys.stderr)
return 1
except Exception:
(exception_type, exception_value, exception_trace) = sys.exc_info()
try:
import datetime
import pprint
import tempfile
import traceback
print("An unexpected error occurred, most likely a bug in %s." %
program_name,
file=sys.stderr)
print(" (The error was: %s: %s)" %
(exception_type.__name__, str(exception_value)),
file=sys.stderr)
# so batch jobs have the details in their logs
output_to_console = not console_utils.stdin_is_interactive()
when = datetime.date.today().isoformat()
prefix = "bug_details_%s_%s_" % (slugified_program_name, when)
with tempfile.NamedTemporaryFile(prefix=prefix,
suffix=".txt",
delete=False) as bugfile:
report_name = bugfile.name
def output(s):
bugfile.write(s.encode('utf-8'))
bugfile.write("\n".encode('utf-8'))
if output_to_console:
print(s, file=sys.stderr)
output("Bug details for %s error on %s" % (program_name, when))
output("")
output("sys.argv: %r" % sys.argv)
output("")
output(pprint.pformat(details_dict))
output("")
output("\n".join(
traceback.format_exception(exception_type, exception_value,
exception_trace)))
if output_to_console:
print("Above details were also saved to %s" % report_name,
file=sys.stderr)
else:
print("Details about the error were saved to %s" % report_name,
file=sys.stderr)
except Exception:
# re-raise the original exception, which is probably more useful
# than reporting whatever was broken about our bug handling code
# above.
raise exception_value
# exit code
return 1
