def display_tasks(tasks, color, colorize_tree, ascii, theme_name,
ignored_fields, field_limit, human_readable, utc_timestamps,
theme_overrides):
"""
Render Eliot tasks, apply any command-line-specified behaviour and render
the task trees to stdout.
"""
if color == 'auto':
colorize = sys.stdout.isatty()
else:
colorize = color == 'always'
setup_platform(colorize=colorize)
write = text_writer(sys.stdout).write
write_err = text_writer(sys.stderr).write
if theme_name == 'auto':
dark_background = is_dark_terminal_background(default=True)
else:
dark_background = theme_name == 'dark'
theme = apply_theme_overrides(
get_theme(dark_background=dark_background,
colored=colored if colorize else None), theme_overrides)
render_tasks(write=write,
write_err=write_err,
tasks=tasks,
ignored_fields=set(ignored_fields) or None,
field_limit=field_limit,
human_readable=human_readable,
colorize_tree=colorize and colorize_tree,
ascii=ascii,
utc_timestamps=utc_timestamps,
theme=theme)
def render_stdout(message):
"""Ref:
http://stackoverflow.com/questions/42936027/how-to-generate-eliot-tasks-for-eliottree-render-tasks
"""
eliottree.render_tasks(codecs.getwriter('utf-8')(sys.stdout).write,
eliottree.tasks_from_iterable([message]),
colorize=True,
human_readable=True)
def render_tasks(self, iterable, **kw):
fd = StringIO()
err = StringIO(u'')
tasks = tasks_from_iterable(iterable)
render_tasks(write=fd.write, write_err=err.write, tasks=tasks, **kw)
if err.tell():
return fd.getvalue(), err.getvalue()
return fd.getvalue()
def test_multiline_field(self):
"""
When no field limit is specified for task values, multiple lines are
output for multiline tasks.
"""
fd = StringIO()
tasks = tasks_from_iterable([multiline_action_task])
render_tasks(write=fd.write, tasks=tasks)
self.assertThat(
fd.getvalue(),
ExactlyEquals(u'f3a32bb3-ea6b-457c-aa99-08a3d0491ab4\n'
u'\u2514\u2500\u2500 app:action/1 \u21d2 started '
u'1425356800\n'
u' \u2514\u2500\u2500 message: this is a\u23ce\n'
u' many line message\n\n'))
def _eliottree(logs):
"""
Render some Eliot log events into a tree-like string.
:param list[dict] logs: The Eliot log events to render. These should be
dicts like those passed to an Eliot destination.
:return unicode: The rendered string.
"""
tasks = tasks_from_iterable(logs)
out = StringIO()
render_tasks(
write=out.write,
tasks=tasks,
field_limit=0,
)
return out.getvalue()
def display_tasks(tasks, color, ignored_fields, field_limit, human_readable):
"""
Render Eliot tasks, apply any command-line-specified behaviour and render
the task trees to stdout.
"""
write = text_writer(sys.stdout).write
write_err = text_writer(sys.stderr).write
if color == 'auto':
colorize = sys.stdout.isatty()
else:
colorize = color == 'always'
render_tasks(write=write,
write_err=write_err,
tasks=tasks,
ignored_fields=set(ignored_fields) or None,
field_limit=field_limit,
human_readable=human_readable,
colorize=colorize)
import requests
from eliot import start_action, add_destinations, log_call
from eliottree import render_tasks, tasks_from_iterable
messages = []
def collect_messages(message):
messages.append(message)
add_destinations(collect_messages)
@log_call
def get_some_data(url):
requests.get(url)
try:
with start_action(action_type='SomeOuterAction', x=123) as action:
action.log(message_type='my_dummy_message',
text='something is about to happen')
url = 'http://4ut23y74283ty872y3t47823t.com/'
with start_action(action_type='SomeInnerAction', url=url):
get_some_data(url)
except:
render_tasks(sys.stdout.write,
tasks_from_iterable(messages),
colorize=True)
def __call__(self, message):
tasks, self._parser = self._parser.add(message)
if tasks:
render_tasks(self.out, tasks, **self.opts)
