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cli.py
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cli.py
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import os
import sys
from spec import eq_, skip, Spec, ok_, trap, raises
from mock import patch, Mock
from invoke.cli import parse, tasks_from_contexts
from invoke.context import Context
from invoke.runner import run
from invoke.parser import Parser
from invoke.collection import Collection
from invoke.tasks import task
from invoke.exceptions import Failure
import invoke
from _utils import _dispatch, _output_eq, IntegrationSpec
class CLI(IntegrationSpec):
"Command-line behavior"
class basic_invocation:
@trap
def vanilla(self):
os.chdir('implicit')
_dispatch('inv foo')
eq_(sys.stdout.getvalue(), "Hm\n")
@trap
def vanilla_with_explicit_collection(self):
# Duplicates _output_eq above, but this way that can change w/o
# breaking our expectations.
_dispatch('inv -c integration print_foo')
eq_(sys.stdout.getvalue(), "foo\n")
def args(self):
_output_eq('-c integration print_name --name inigo', "inigo\n")
def underscored_args(self):
_output_eq(
'-c integration print_underscored_arg --my-option whatevs',
"whatevs\n",
)
def missing_collection_yields_useful_error(self):
_output_eq(
'-c huhwhat -l',
stderr="Can't find any collection named 'huhwhat'!\n"
)
def missing_default_collection_doesnt_say_None(self):
os.chdir('/')
_output_eq('-l', stderr="Can't find any collection named 'tasks'!\n")
def contextualized_tasks_are_given_parser_context_arg(self):
# go() in contextualized.py just returns its initial arg
retval = list(_dispatch('invoke -c contextualized go').values())[0]
assert isinstance(retval, Context)
def core_help_option_prints_core_help(self):
# TODO: change dynamically based on parser contents?
# e.g. no core args == no [--core-opts],
# no tasks == no task stuff?
# NOTE: test will trigger default pty size of 80x24, so the below
# string is formatted appropriately.
# TODO: add more unit-y tests for specific behaviors:
# * fill terminal w/ columns + spacing
# * line-wrap help text in its own column
expected = """
Usage: inv[oke] [--core-opts] task1 [--task1-opts] ... taskN [--taskN-opts]
Core options:
--no-dedupe Disable task deduplication.
-c STRING, --collection=STRING Specify collection name to load.
-d, --debug Enable debug output.
-e, --echo Echo executed commands before running.
-h [STRING], --help[=STRING] Show core or per-task help and exit.
-H STRING, --hide=STRING Set default value of run()'s 'hide' kwarg.
-l, --list List available tasks.
-p, --pty Use a pty when executing shell commands.
-r STRING, --root=STRING Change root directory used for finding task
modules.
-V, --version Show version and exit.
-w, --warn-only Warn, instead of failing, when shell
commands fail.
""".lstrip()
for flag in ['-h', '--help']:
_output_eq(flag, expected)
def per_task_help_prints_help_for_task_only(self):
expected = """
Usage: inv[oke] [--core-opts] punch [--options] [other tasks here ...]
Docstring:
none
Options:
-h STRING, --why=STRING Motive
-w STRING, --who=STRING Who to punch
""".lstrip()
for flag in ['-h', '--help']:
_output_eq('-c decorator {0} punch'.format(flag), expected)
def per_task_help_works_for_unparameterized_tasks(self):
expected = """
Usage: inv[oke] [--core-opts] biz [other tasks here ...]
Docstring:
none
Options:
none
""".lstrip()
_output_eq('-c decorator -h biz', expected)
def per_task_help_displays_docstrings_if_given(self):
expected = """
Usage: inv[oke] [--core-opts] foo [other tasks here ...]
Docstring:
Foo the bar.
Options:
none
""".lstrip()
_output_eq('-c decorator -h foo', expected)
def per_task_help_dedents_correctly(self):
expected = """
Usage: inv[oke] [--core-opts] foo2 [other tasks here ...]
Docstring:
Foo the bar:
example code
Added in 1.0
Options:
none
""".lstrip()
_output_eq('-c decorator -h foo2', expected)
def version_info(self):
_output_eq('-V', "Invoke %s\n" % invoke.__version__)
@trap
def version_override(self):
_dispatch('notinvoke -V', version="nope 1.0")
eq_(sys.stdout.getvalue(), "nope 1.0\n")
class task_list:
"--list"
def _listing(self, lines):
return ("""
Available tasks:
%s
""" % '\n'.join(" " + x for x in lines)).lstrip()
def _list_eq(self, collection, listing):
cmd = '-c {0} --list'.format(collection)
_output_eq(cmd, self._listing(listing))
def simple_output(self):
expected = self._listing((
'bar',
'biz',
'boz',
'foo',
'post1',
'post2',
'print_foo',
'print_name',
'print_underscored_arg',
))
for flag in ('-l', '--list'):
_output_eq('-c integration {0}'.format(flag), expected)
def namespacing(self):
self._list_eq('namespacing', (
'toplevel',
'module.mytask',
))
def top_level_tasks_listed_first(self):
self._list_eq('simple_ns_list', (
'z_toplevel',
'a.subtask'
))
def subcollections_sorted_in_depth_order(self):
self._list_eq('deeper_ns_list', (
'toplevel',
'a.subtask',
'a.nother.subtask',
))
def aliases_sorted_alphabetically(self):
self._list_eq('alias_sorting', (
'toplevel (a, z)',
))
def default_tasks(self):
# sub-ns default task display as "real.name (collection name)"
self._list_eq('explicit_root', (
'top_level (othertop)',
'sub.sub_task (sub, sub.othersub)',
))
def docstrings_shown_alongside(self):
self._list_eq('docstrings', (
'leading_whitespace foo',
'no_docstring',
'one_line foo',
'two_lines foo',
'with_aliases (a, b) foo',
))
def empty_collections_say_no_tasks(self):
_output_eq(
"-c empty -l",
"No tasks found in collection 'empty'!\n"
)
def debug_flag_activates_logging(self):
# Have to patch our logger to get in before Nose logcapture kicks in.
with patch('invoke.util.debug') as debug:
_dispatch('inv -d -c debugging foo')
debug.assert_called_with('my-sentinel')
class autoprinting:
def defaults_to_off_and_no_output(self):
_output_eq("-c autoprint nope", "")
def prints_return_value_to_stdout_when_on(self):
_output_eq("-c autoprint yup", "It's alive!\n")
def prints_return_value_to_stdout_when_on_and_in_collection(self):
_output_eq("-c autoprint sub.yup", "It's alive!\n")
def does_not_fire_on_pre_tasks(self):
_output_eq("-c autoprint pre_check", "")
def does_not_fire_on_post_tasks(self):
_output_eq("-c autoprint post_check", "")
class run_options:
"run() related CLI flags"
def _test_flag(self, flag, kwarg, value):
with patch('invoke.context.run') as run:
_dispatch('invoke {0} -c contextualized run'.format(flag))
run.assert_called_with('x', **{kwarg: value})
def warn_only(self):
self._test_flag('-w', 'warn', True)
def pty(self):
self._test_flag('-p', 'pty', True)
def hide(self):
self._test_flag('--hide both', 'hide', 'both')
def echo(self):
self._test_flag('-e', 'echo', True)
class config_loading:
# TODO: More appropriate in Executor perhaps? Or in addition?
class system_global:
"Systemwide conf file"
def yaml_first(self):
skip()
def json_if_no_yaml(self):
skip()
def python_if_no_json_or_yaml(self):
skip()
class user_specific:
"User-specific conf file"
def yaml_first(self):
skip()
def json_if_no_yaml(self):
skip()
def python_if_no_json_or_yaml(self):
skip()
class project_specific:
"Local-to-project conf file"
def yaml_first(self):
skip()
def json_if_no_yaml(self):
skip()
def python_if_no_json_or_yaml(self):
skip()
def honors_conf_file_flag(self):
skip()
class env_vars:
"Environment variables"
def base_case(self):
# FOO=bar
skip()
def throws_error_on_undefined_settings(self):
skip()
def underscores_top_level(self):
# FOO_BAR=biz => {'foo_bar': 'biz'}
skip()
def underscores_nested(self):
# FOO_BAR=biz => {'foo': {'bar': 'biz'}}
skip()
def both_underscores(self):
# FOO_BAR_BIZ=baz => {'foo_bar': {'biz': 'baz'}}
skip()
class hierarchy:
"Config hierarchy in effect"
def systemwide_overrides_collection(self):
skip()
def user_overrides_systemwide(self):
skip()
def user_overrides_collection(self):
skip()
def project_overrides_user(self):
skip()
def project_overrides_systemwide(self):
skip()
def project_overrides_collection(self):
skip()
def env_vars_override_project(self):
skip()
def env_vars_override_user(self):
skip()
def env_vars_override_systemwide(self):
skip()
def env_vars_override_collection(self):
skip()
def runtime_overrides_env_vars(self):
skip()
def runtime_overrides_project(self):
skip()
def runtime_overrides_user(self):
skip()
def runtime_overrides_systemwide(self):
skip()
def runtime_overrides_collection(self):
skip()
def e_flag_overrides_all(self):
"-e overrides run.echo for all other layers"
skip()
TB_SENTINEL = 'Traceback (most recent call last)'
class HighLevelFailures(Spec):
@trap
def command_failure(self):
"Command failure doesn't show tracebacks"
with patch('sys.exit') as exit:
_dispatch('inv -c fail simple')
assert TB_SENTINEL not in sys.stderr.getvalue()
exit.assert_called_with(1)
class parsing:
@trap
def should_not_show_tracebacks(self):
# Ensure we fall out of dispatch() on missing parser args,
# but are still able to look at stderr to ensure no TB got printed
with patch('sys.exit', Mock(side_effect=SystemExit)):
try:
_dispatch("inv -c fail missing_pos")
except SystemExit:
pass
assert TB_SENTINEL not in sys.stderr.getvalue()
def should_show_core_usage_on_core_failures(self):
skip()
def should_show_context_usage_on_context_failures(self):
skip()
def load_failure(self):
skip()
class CLIParsing(Spec):
"""
High level parsing tests
"""
def setup(self):
@task(positional=[])
def mytask(mystring, s, boolean=False, b=False, v=False,
long_name=False, true_bool=True):
pass
@task(aliases=['mytask27'])
def mytask2():
pass
@task(default=True)
def mytask3(mystring):
pass
@task
def mytask4(clean=False, browse=False):
pass
@task(aliases=['other'], default=True)
def subtask():
pass
subcoll = Collection('sub', subtask)
self.c = Collection(mytask, mytask2, mytask3, mytask4, subcoll)
def _parser(self):
return Parser(self.c.to_contexts())
def _parse(self, argstr):
return self._parser().parse_argv(argstr.split())
def _compare(self, invoke, flagname, value):
invoke = "mytask " + invoke
result = self._parse(invoke)
eq_(result[0].args[flagname].value, value)
def _compare_names(self, given, real):
eq_(self._parse(given)[0].name, real)
def underscored_flags_can_be_given_as_dashed(self):
self._compare('--long-name', 'long_name', True)
def inverse_boolean_flags(self):
self._compare('--no-true-bool', 'true_bool', False)
def namespaced_task(self):
self._compare_names("sub.subtask", "sub.subtask")
def aliases(self):
self._compare_names("mytask27", "mytask2")
def subcollection_aliases(self):
self._compare_names("sub.other", "sub.subtask")
def subcollection_default_tasks(self):
self._compare_names("sub", "sub.subtask")
def loaded_collection_default_task(self):
result = tasks_from_contexts(self._parse(''), self.c)
eq_(len(result), 1)
eq_(result[0][0], 'mytask3')
def boolean_args(self):
"mytask --boolean"
self._compare("--boolean", 'boolean', True)
def flag_then_space_then_value(self):
"mytask --mystring foo"
self._compare("--mystring foo", 'mystring', 'foo')
def flag_then_equals_sign_then_value(self):
"mytask --mystring=foo"
self._compare("--mystring=foo", 'mystring', 'foo')
def short_boolean_flag(self):
"mytask -b"
self._compare("-b", 'b', True)
def short_flag_then_space_then_value(self):
"mytask -s value"
self._compare("-s value", 's', 'value')
def short_flag_then_equals_sign_then_value(self):
"mytask -s=value"
self._compare("-s=value", 's', 'value')
def short_flag_with_adjacent_value(self):
"mytask -svalue"
r = self._parse("mytask -svalue")
eq_(r[0].args.s.value, 'value')
def _flag_value_task(self, value):
r = self._parse("mytask -s %s mytask2" % value)
eq_(len(r), 2)
eq_(r[0].name, 'mytask')
eq_(r[0].args.s.value, value)
eq_(r[1].name, 'mytask2')
def flag_value_then_task(self):
"mytask -s value mytask2"
self._flag_value_task('value')
def flag_value_same_as_task_name(self):
"mytask -s mytask2 mytask2"
self._flag_value_task('mytask2')
def three_tasks_with_args(self):
"mytask --boolean mytask3 --mystring foo mytask2"
r = self._parse("mytask --boolean mytask3 --mystring foo mytask2")
eq_(len(r), 3)
eq_([x.name for x in r], ['mytask', 'mytask3', 'mytask2'])
eq_(r[0].args.boolean.value, True)
eq_(r[1].args.mystring.value, 'foo')
def tasks_with_duplicately_named_kwargs(self):
"mytask --mystring foo mytask3 --mystring bar"
r = self._parse("mytask --mystring foo mytask3 --mystring bar")
eq_(r[0].name, 'mytask')
eq_(r[0].args.mystring.value, 'foo')
eq_(r[1].name, 'mytask3')
eq_(r[1].args.mystring.value, 'bar')
def multiple_short_flags_adjacent(self):
"mytask -bv (and inverse)"
for args in ('-bv', '-vb'):
r = self._parse("mytask %s" % args)
a = r[0].args
eq_(a.b.value, True)
eq_(a.v.value, True)