django-orchestra/orchestra/contrib/orchestration/helpers.py

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import textwrap
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from django.contrib import messages
from django.core.mail import mail_admins
from django.core.urlresolvers import reverse, NoReverseMatch
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
from django.utils.translation import ungettext, ugettext_lazy as _
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from orchestra import settings as orchestra_settings
from orchestra.admin.utils import change_url
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def get_backends_help_text(backends):
help_texts = {}
for backend in backends:
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help_text = backend.__doc__ or ''
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context = {
'model': backend.model,
'related_models': str(backend.related_models),
'script_executable': backend.script_executable,
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'script_method': '.'.join((backend.script_method.__module__, backend.script_method.__name__)),
'function_method': '.'.join((backend.function_method.__module__, backend.function_method.__name__)),
'actions': str(backend.actions),
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}
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help_text += textwrap.dedent("""
- Model: <tt>'%(model)s'</tt>
- Related models: <tt>%(related_models)s</tt>
- Script executable: <tt>%(script_executable)s</tt>
- Script method: <tt>%(script_method)s</tt>
- Function method: <tt>%(function_method)s</tt>
- Actions: <tt>%(actions)s</tt>
"""
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) % context
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help_text = help_text.lstrip().splitlines()
help_settings = ['']
if backend.doc_settings:
module, names = backend.doc_settings
for name in names:
value = getattr(module, name)
if isinstance(value, str):
help_settings.append("<tt>%s = '%s'</tt>" % (name, value))
else:
help_settings.append("<tt>%s = %s</tt>" % (name, str(value)))
help_text += help_settings
help_texts[backend.get_name()] = '<br>'.join(help_text)
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return help_texts
def get_instance_url(operation):
try:
url = change_url(operation.instance)
except NoReverseMatch:
return _("Deleted {0}").format(operation.instance_repr or '-'.join(
(escape(operation.content_type), escape(operation.object_id))))
return orchestra_settings.ORCHESTRA_SITE_URL + url
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def send_report(method, args, log):
server = args[0]
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backend = method.__self__.__class__.__name__
subject = '[Orchestra] %s execution %s on %s' % (backend, log.state, server)
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separator = "\n%s\n\n" % ('~ '*40,)
operations = '\n'.join([' '.join((op.action, get_instance_url(op))) for op in log.operations.all()])
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log_url = reverse('admin:orchestration_backendlog_change', args=(log.pk,))
log_url = orchestra_settings.ORCHESTRA_SITE_URL + log_url
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message = separator.join([
"[EXIT CODE] %s" % log.exit_code,
"[STDERR]\n%s" % log.stderr,
"[STDOUT]\n%s" % log.stdout,
"[SCRIPT]\n%s" % log.script,
"[TRACEBACK]\n%s" % log.traceback,
"[OPERATIONS]\n%s" % operations,
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"[BACKEND LOG] %s" % log_url,
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])
html_message = '\n\n'.join([
'<h4 style="color:#505050;">Exit code %s</h4>' % log.exit_code,
'<h4 style="color:#505050;">Stderr</h4>'
'<pre style="margin-left:20px;font-size:11px">%s</pre>' % escape(log.stderr),
'<h4 style="color:#505050;">Stdout</h4>'
'<pre style="margin-left:20px;font-size:11px">%s</pre>' % escape(log.stdout),
'<h4 style="color:#505050;">Script</h4>'
'<pre style="margin-left:20px;font-size:11px">%s</pre>' % escape(log.script),
'<h4 style="color:#505050;">Traceback</h4>'
'<pre style="margin-left:20px;font-size:11px">%s</pre>' % escape(log.traceback),
'<h4 style="color:#505050;">Operations</h4>'
'<pre style="margin-left:20px;font-size:11px">%s</pre>' % escape(operations),
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'<h4 style="color:#505050;">Backend log <a href="%s">%s</h4>' % (log_url, log_url),
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])
mail_admins(subject, message, html_message=html_message)
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def get_backend_url(ids):
if len(ids) == 1:
return reverse('admin:orchestration_backendlog_change', args=ids)
elif len(ids) > 1:
url = reverse('admin:orchestration_backendlog_changelist')
return url + '?id__in=%s' % ','.join(map(str, ids))
return ''
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def message_user(request, logs):
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total, successes, async = 0, 0, 0
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ids = []
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async_ids = []
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for log in logs:
total += 1
if log.state != log.EXCEPTION:
# EXCEPTION logs are not stored on the database
ids.append(log.pk)
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if log.is_success:
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successes += 1
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elif not log.has_finished:
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async += 1
async_ids.append(log.id)
errors = total-successes-async
url = get_backend_url(ids)
async_url = get_backend_url(async_ids)
async_msg = ''
if async:
async_msg = ungettext(
_('<a href="{async_url}">{async} backend</a> is running on the background'),
_('<a href="{async_url}">{async} backends</a> are running on the background'),
async)
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if errors:
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msg = ungettext(
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_('<a href="{url}">{errors} out of {total} backend</a> has fail to execute'),
_('<a href="{url}">{errors} out of {total} backends</a> have fail to execute'),
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errors)
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if async_msg:
msg += ', ' + str(async_msg)
msg = msg.format(errors=errors, async=async, async_url=async_url, total=total, url=url)
messages.error(request, mark_safe(msg + '.'))
elif successes:
if async_msg:
msg = ungettext(
_('<a href="{url}">{successes} out of {total} backend</a> has been executed'),
_('<a href="{url}">{successes} out of {total} backends</a> have been executed'),
successes)
msg += ', ' + str(async_msg)
else:
msg = ungettext(
_('<a href="{url}">{total} backend</a> has been executed'),
_('<a href="{url}">{total} backends</a> have been executed'),
total)
msg = msg.format(total=total, url=url, async_url=async_url, async=async, successes=successes)
messages.success(request, mark_safe(msg + '.'))
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else:
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msg = async_msg.format(url=url, async_url=async_url, async=async)
messages.success(request, mark_safe(msg + '.'))