INSTRUCTION stringlengths 1 46.3k | RESPONSE stringlengths 75 80.2k |
|---|---|
Update CloudWatch metrics configuration. | def update_stage_config( self,
project_name,
stage_name,
cloudwatch_log_level,
cloudwatch_data_trace,
cloudwatch_metrics_enabled
... |
Delete the CF stack managed by Zappa. | def delete_stack(self, name, wait=False):
"""
Delete the CF stack managed by Zappa.
"""
try:
stack = self.cf_client.describe_stacks(StackName=name)['Stacks'][0]
except: # pragma: no cover
print('No Zappa stack named {0}'.format(name))
return Fa... |
Build the entire CF stack.
Just used for the API Gateway, but could be expanded in the future. | def create_stack_template( self,
lambda_arn,
lambda_name,
api_key_required,
iam_authorization,
authorizer,
cors_options=None,
... |
Update or create the CF stack managed by Zappa. | def update_stack(self, name, working_bucket, wait=False, update_only=False, disable_progress=False):
"""
Update or create the CF stack managed by Zappa.
"""
capabilities = []
template = name + '-template-' + str(int(time.time())) + '.json'
with open(template, 'wb') as ou... |
Given a name, describes CloudFront stacks and returns dict of the stack Outputs
, else returns an empty dict. | def stack_outputs(self, name):
"""
Given a name, describes CloudFront stacks and returns dict of the stack Outputs
, else returns an empty dict.
"""
try:
stack = self.cf_client.describe_stacks(StackName=name)['Stacks'][0]
return {x['OutputKey']: x['OutputV... |
Given a lambda_name and stage_name, return a valid API URL. | def get_api_url(self, lambda_name, stage_name):
"""
Given a lambda_name and stage_name, return a valid API URL.
"""
api_id = self.get_api_id(lambda_name)
if api_id:
return "https://{}.execute-api.{}.amazonaws.com/{}".format(api_id, self.boto_session.region_name, stage... |
Given a lambda_name, return the API id. | def get_api_id(self, lambda_name):
"""
Given a lambda_name, return the API id.
"""
try:
response = self.cf_client.describe_stack_resource(StackName=lambda_name,
LogicalResourceId='Api')
return response[... |
Creates the API GW domain and returns the resulting DNS name. | def create_domain_name(self,
domain_name,
certificate_name,
certificate_body=None,
certificate_private_key=None,
certificate_chain=None,
certificate_arn=None,... |
Updates Route53 Records following GW domain creation | def update_route53_records(self, domain_name, dns_name):
"""
Updates Route53 Records following GW domain creation
"""
zone_id = self.get_hosted_zone_id_for_domain(domain_name)
is_apex = self.route53.get_hosted_zone(Id=zone_id)['HostedZone']['Name'][:-1] == domain_name
if... |
This updates your certificate information for an existing domain,
with similar arguments to boto's update_domain_name API Gateway api.
It returns the resulting new domain information including the new certificate's ARN
if created during this process.
Previously, this method involved do... | def update_domain_name(self,
domain_name,
certificate_name=None,
certificate_body=None,
certificate_private_key=None,
certificate_chain=None,
certificate_arn=... |
Update domain base path mapping on API Gateway if it was changed | def update_domain_base_path_mapping(self, domain_name, lambda_name, stage, base_path):
"""
Update domain base path mapping on API Gateway if it was changed
"""
api_id = self.get_api_id(lambda_name)
if not api_id:
print("Warning! Can't update base path mapping!")
... |
Same behaviour of list_host_zones, but transparently handling pagination. | def get_all_zones(self):
"""Same behaviour of list_host_zones, but transparently handling pagination."""
zones = {'HostedZones': []}
new_zones = self.route53.list_hosted_zones(MaxItems='100')
while new_zones['IsTruncated']:
zones['HostedZones'] += new_zones['HostedZones']
... |
Scan our hosted zones for the record of a given name.
Returns the record entry, else None. | def get_domain_name(self, domain_name, route53=True):
"""
Scan our hosted zones for the record of a given name.
Returns the record entry, else None.
"""
# Make sure api gateway domain is present
try:
self.apigateway_client.get_domain_name(domainName=domain_n... |
Given our role name, get and set the credentials_arn. | def get_credentials_arn(self):
"""
Given our role name, get and set the credentials_arn.
"""
role = self.iam.Role(self.role_name)
self.credentials_arn = role.arn
return role, self.credentials_arn |
Remove obsolete policy statements to prevent policy from bloating over the limit after repeated updates. | def _clear_policy(self, lambda_name):
"""
Remove obsolete policy statements to prevent policy from bloating over the limit after repeated updates.
"""
try:
policy_response = self.lambda_client.get_policy(
FunctionName=lambda_name
)
if p... |
Create permissions to link to an event.
Related: http://docs.aws.amazon.com/lambda/latest/dg/with-s3-example-configure-event-source.html | def create_event_permission(self, lambda_name, principal, source_arn):
"""
Create permissions to link to an event.
Related: http://docs.aws.amazon.com/lambda/latest/dg/with-s3-example-configure-event-source.html
"""
logger.debug('Adding new permission to invoke Lambda function: ... |
Given a Lambda ARN, name and a list of events, schedule this as CloudWatch Events.
'events' is a list of dictionaries, where the dict must contains the string
of a 'function' and the string of the event 'expression', and an optional 'name' and 'description'.
Expressions can be in rate or cron ... | def schedule_events(self, lambda_arn, lambda_name, events, default=True):
"""
Given a Lambda ARN, name and a list of events, schedule this as CloudWatch Events.
'events' is a list of dictionaries, where the dict must contains the string
of a 'function' and the string of the event 'expre... |
Returns an AWS-valid Lambda event name. | def get_event_name(lambda_name, name):
"""
Returns an AWS-valid Lambda event name.
"""
return '{prefix:.{width}}-{postfix}'.format(prefix=lambda_name, width=max(0, 63 - len(name)), postfix=name)[:64] |
Returns an AWS-valid CloudWatch rule name using a digest of the event name, lambda name, and function.
This allows support for rule names that may be longer than the 64 char limit. | def get_hashed_rule_name(event, function, lambda_name):
"""
Returns an AWS-valid CloudWatch rule name using a digest of the event name, lambda name, and function.
This allows support for rule names that may be longer than the 64 char limit.
"""
event_name = event.get('name', func... |
Delete a CWE rule.
This deletes them, but they will still show up in the AWS console.
Annoying. | def delete_rule(self, rule_name):
"""
Delete a CWE rule.
This deletes them, but they will still show up in the AWS console.
Annoying.
"""
logger.debug('Deleting existing rule {}'.format(rule_name))
# All targets must be removed before
# we can actually... |
Get all of the rule names associated with a lambda function. | def get_event_rule_names_for_lambda(self, lambda_arn):
"""
Get all of the rule names associated with a lambda function.
"""
response = self.events_client.list_rule_names_by_target(TargetArn=lambda_arn)
rule_names = response['RuleNames']
# Iterate when the results are pagi... |
Get all of the rule details associated with this function. | def get_event_rules_for_lambda(self, lambda_arn):
"""
Get all of the rule details associated with this function.
"""
rule_names = self.get_event_rule_names_for_lambda(lambda_arn=lambda_arn)
return [self.events_client.describe_rule(Name=r) for r in rule_names] |
Given a list of events, unschedule these CloudWatch Events.
'events' is a list of dictionaries, where the dict must contains the string
of a 'function' and the string of the event 'expression', and an optional 'name' and 'description'. | def unschedule_events(self, events, lambda_arn=None, lambda_name=None, excluded_source_services=None):
excluded_source_services = excluded_source_services or []
"""
Given a list of events, unschedule these CloudWatch Events.
'events' is a list of dictionaries, where the dict must contai... |
Create the SNS-based async topic. | def create_async_sns_topic(self, lambda_name, lambda_arn):
"""
Create the SNS-based async topic.
"""
topic_name = get_topic_name(lambda_name)
# Create SNS topic
topic_arn = self.sns_client.create_topic(
Name=topic_name)['TopicArn']
# Create subscriptio... |
Remove the async SNS topic. | def remove_async_sns_topic(self, lambda_name):
"""
Remove the async SNS topic.
"""
topic_name = get_topic_name(lambda_name)
removed_arns = []
for sub in self.sns_client.list_subscriptions()['Subscriptions']:
if topic_name in sub['TopicArn']:
se... |
Create the DynamoDB table for async task return values | def create_async_dynamodb_table(self, table_name, read_capacity, write_capacity):
"""
Create the DynamoDB table for async task return values
"""
try:
dynamodb_table = self.dynamodb_client.describe_table(TableName=table_name)
return False, dynamodb_table
#... |
Fetch the CloudWatch logs for a given Lambda name. | def fetch_logs(self, lambda_name, filter_pattern='', limit=10000, start_time=0):
"""
Fetch the CloudWatch logs for a given Lambda name.
"""
log_name = '/aws/lambda/' + lambda_name
streams = self.logs_client.describe_log_streams(
logGroupName=log_name,
desc... |
Filter all log groups that match the name given in log_filter. | def remove_log_group(self, group_name):
"""
Filter all log groups that match the name given in log_filter.
"""
print("Removing log group: {}".format(group_name))
try:
self.logs_client.delete_log_group(logGroupName=group_name)
except botocore.exceptions.ClientE... |
Removed all logs that are assigned to a given rest api id. | def remove_api_gateway_logs(self, project_name):
"""
Removed all logs that are assigned to a given rest api id.
"""
for rest_api in self.get_rest_apis(project_name):
for stage in self.apigateway_client.get_stages(restApiId=rest_api['id'])['item']:
self.remove_... |
Get the Hosted Zone ID for a given domain. | def get_hosted_zone_id_for_domain(self, domain):
"""
Get the Hosted Zone ID for a given domain.
"""
all_zones = self.get_all_zones()
return self.get_best_match_zone(all_zones, domain) |
Return zone id which name is closer matched with domain name. | def get_best_match_zone(all_zones, domain):
"""Return zone id which name is closer matched with domain name."""
# Related: https://github.com/Miserlou/Zappa/issues/459
public_zones = [zone for zone in all_zones['HostedZones'] if not zone['Config']['PrivateZone']]
zones = {zone['Name'][... |
Remove DNS challenge TXT. | def remove_dns_challenge_txt(self, zone_id, domain, txt_challenge):
"""
Remove DNS challenge TXT.
"""
print("Deleting DNS challenge..")
resp = self.route53.change_resource_record_sets(
HostedZoneId=zone_id,
ChangeBatch=self.get_dns_challenge_change_batch('... |
Load AWS credentials.
An optional boto_session can be provided, but that's usually for testing.
An optional profile_name can be provided for config files that have multiple sets
of credentials. | def load_credentials(self, boto_session=None, profile_name=None):
"""
Load AWS credentials.
An optional boto_session can be provided, but that's usually for testing.
An optional profile_name can be provided for config files that have multiple sets
of credentials.
"""
... |
Main cert installer path. | def get_cert_and_update_domain(
zappa_instance,
lambda_name,
api_stage,
domain=None,
manual=False,
):
"""
Main cert installe... |
Parse account key to get public key | def parse_account_key():
"""Parse account key to get public key"""
LOGGER.info("Parsing account key...")
cmd = [
'openssl', 'rsa',
'-in', os.path.join(gettempdir(), 'account.key'),
'-noout',
'-text'
]
devnull = open(os.devnull, 'wb')
return subprocess.check_output... |
Parse certificate signing request for domains | def parse_csr():
"""
Parse certificate signing request for domains
"""
LOGGER.info("Parsing CSR...")
cmd = [
'openssl', 'req',
'-in', os.path.join(gettempdir(), 'domain.csr'),
'-noout',
'-text'
]
devnull = open(os.devnull, 'wb')
out = subprocess.check_outp... |
Use regular expressions to find crypto values from parsed account key,
and return a header we can send to our Boulder instance. | def get_boulder_header(key_bytes):
"""
Use regular expressions to find crypto values from parsed account key,
and return a header we can send to our Boulder instance.
"""
pub_hex, pub_exp = re.search(
r"modulus:\n\s+00:([a-f0-9\:\s]+?)\npublicExponent: ([0-9]+)",
key_bytes.decode('ut... |
Agree to LE TOS | def register_account():
"""
Agree to LE TOS
"""
LOGGER.info("Registering account...")
code, result = _send_signed_request(DEFAULT_CA + "/acme/new-reg", {
"resource": "new-reg",
"agreement": "https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf",
})
if code == 201... |
Call LE to get a new signed CA. | def get_cert(zappa_instance, log=LOGGER, CA=DEFAULT_CA):
"""
Call LE to get a new signed CA.
"""
out = parse_account_key()
header = get_boulder_header(out)
accountkey_json = json.dumps(header['jwk'], sort_keys=True, separators=(',', ':'))
thumbprint = _b64(hashlib.sha256(accountkey_json.enco... |
Loop until our challenge is verified, else fail. | def verify_challenge(uri):
"""
Loop until our challenge is verified, else fail.
"""
while True:
try:
resp = urlopen(uri)
challenge_status = json.loads(resp.read().decode('utf8'))
except IOError as e:
raise ValueError("Error checking challenge: {0} {1}"... |
Get the new certificate.
Returns the signed bytes. | def sign_certificate():
"""
Get the new certificate.
Returns the signed bytes.
"""
LOGGER.info("Signing certificate...")
cmd = [
'openssl', 'req',
'-in', os.path.join(gettempdir(), 'domain.csr'),
'-outform', 'DER'
]
devnull = open(os.devnull, 'wb')
csr_der = ... |
Encode cert bytes to PEM encoded cert file. | def encode_certificate(result):
"""
Encode cert bytes to PEM encoded cert file.
"""
cert_body = """-----BEGIN CERTIFICATE-----\n{0}\n-----END CERTIFICATE-----\n""".format(
"\n".join(textwrap.wrap(base64.b64encode(result).decode('utf8'), 64)))
signed_crt = open("{}/signed.crt".format(gettempd... |
Helper function to make signed requests to Boulder | def _send_signed_request(url, payload):
"""
Helper function to make signed requests to Boulder
"""
payload64 = _b64(json.dumps(payload).encode('utf8'))
out = parse_account_key()
header = get_boulder_header(out)
protected = copy.deepcopy(header)
protected["nonce"] = urlopen(DEFAULT_CA +... |
Shamelessly promote our little community. | def shamelessly_promote():
"""
Shamelessly promote our little community.
"""
click.echo("Need " + click.style("help", fg='green', bold=True) +
"? Found a " + click.style("bug", fg='green', bold=True) +
"? Let us " + click.style("know", fg='green', bold=True) + "! :D")
... |
Main program execution handler. | def handle(): # pragma: no cover
"""
Main program execution handler.
"""
try:
cli = ZappaCLI()
sys.exit(cli.handle())
except SystemExit as e: # pragma: no cover
cli.on_exit()
sys.exit(e.code)
except KeyboardInterrupt: # pragma: no cover
cli.on_exit()
... |
A shortcut property for settings of a stage. | def stage_config(self):
"""
A shortcut property for settings of a stage.
"""
def get_stage_setting(stage, extended_stages=None):
if extended_stages is None:
extended_stages = []
if stage in extended_stages:
raise RuntimeError(stag... |
Forcefully override a setting set by zappa_settings (for the current stage only)
:param key: settings key
:param val: value | def override_stage_config_setting(self, key, val):
"""
Forcefully override a setting set by zappa_settings (for the current stage only)
:param key: settings key
:param val: value
"""
self._stage_config_overrides = getattr(self, '_stage_config_overrides', {})
self.... |
Main function.
Parses command, load settings and dispatches accordingly. | def handle(self, argv=None):
"""
Main function.
Parses command, load settings and dispatches accordingly.
"""
desc = ('Zappa - Deploy Python applications to AWS Lambda'
' and API Gateway.\n')
parser = argparse.ArgumentParser(description=desc)
pa... |
Given a command to execute and stage,
execute that command. | def dispatch_command(self, command, stage):
"""
Given a command to execute and stage,
execute that command.
"""
self.api_stage = stage
if command not in ['status', 'manage']:
if not self.vargs.get('json', None):
click.echo("Calling " + click.... |
Only build the package | def package(self, output=None):
"""
Only build the package
"""
# Make sure we're in a venv.
self.check_venv()
# force not to delete the local zip
self.override_stage_config_setting('delete_local_zip', False)
# Execute the prebuild script
if self.p... |
Only build the template file. | def template(self, lambda_arn, role_arn, output=None, json=False):
"""
Only build the template file.
"""
if not lambda_arn:
raise ClickException("Lambda ARN is required to template.")
if not role_arn:
raise ClickException("Role ARN is required to templat... |
Package your project, upload it to S3, register the Lambda function
and create the API Gateway routes. | def deploy(self, source_zip=None):
"""
Package your project, upload it to S3, register the Lambda function
and create the API Gateway routes.
"""
if not source_zip:
# Make sure we're in a venv.
self.check_venv()
# Execute the prebuild script... |
Repackage and update the function code. | def update(self, source_zip=None, no_upload=False):
"""
Repackage and update the function code.
"""
if not source_zip:
# Make sure we're in a venv.
self.check_venv()
# Execute the prebuild script
if self.prebuild_script:
s... |
Rollsback the currently deploy lambda code to a previous revision. | def rollback(self, revision):
"""
Rollsback the currently deploy lambda code to a previous revision.
"""
print("Rolling back..")
self.zappa.rollback_lambda_function_version(
self.lambda_name, versions_back=revision)
print("Done!") |
Tail this function's logs.
if keep_open, do so repeatedly, printing any new logs | def tail(self, since, filter_pattern, limit=10000, keep_open=True, colorize=True, http=False, non_http=False, force_colorize=False):
"""
Tail this function's logs.
if keep_open, do so repeatedly, printing any new logs
"""
try:
since_stamp = string_to_timestamp(since... |
Tear down an existing deployment. | def undeploy(self, no_confirm=False, remove_logs=False):
"""
Tear down an existing deployment.
"""
if not no_confirm: # pragma: no cover
confirm = input("Are you sure you want to undeploy? [y/n] ")
if confirm != 'y':
return
if self.use_al... |
Update any cognito triggers | def update_cognito_triggers(self):
"""
Update any cognito triggers
"""
if self.cognito:
user_pool = self.cognito.get('user_pool')
triggers = self.cognito.get('triggers', [])
lambda_configs = set()
for trigger in triggers:
la... |
Given a a list of functions and a schedule to execute them,
setup up regular execution. | def schedule(self):
"""
Given a a list of functions and a schedule to execute them,
setup up regular execution.
"""
events = self.stage_config.get('events', [])
if events:
if not isinstance(events, list): # pragma: no cover
print("Events must... |
Given a a list of scheduled functions,
tear down their regular execution. | def unschedule(self):
"""
Given a a list of scheduled functions,
tear down their regular execution.
"""
# Run even if events are not defined to remove previously existing ones (thus default to []).
events = self.stage_config.get('events', [])
if not isinstance(... |
Invoke a remote function. | def invoke(self, function_name, raw_python=False, command=None, no_color=False):
"""
Invoke a remote function.
"""
# There are three likely scenarios for 'command' here:
# command, which is a modular function path
# raw_command, which is a string of python to execute... |
Formats correctly the string output from the invoke() method,
replacing line breaks and tabs when necessary. | def format_invoke_command(self, string):
"""
Formats correctly the string output from the invoke() method,
replacing line breaks and tabs when necessary.
"""
string = string.replace('\\n', '\n')
formated_response = ''
for line in string.splitlines():
... |
Apply various heuristics to return a colorized version the invoke
command string. If these fail, simply return the string in plaintext.
Inspired by colorize_log_entry(). | def colorize_invoke_command(self, string):
"""
Apply various heuristics to return a colorized version the invoke
command string. If these fail, simply return the string in plaintext.
Inspired by colorize_log_entry().
"""
final_string = string
try:
... |
Describe the status of the current deployment. | def status(self, return_json=False):
"""
Describe the status of the current deployment.
"""
def tabular_print(title, value):
"""
Convenience function for priting formatted table items.
"""
click.echo('%-*s%s' % (32, click.style("\t" + titl... |
Make sure the environment contains only strings
(since putenv needs a string) | def check_environment(self, environment):
"""
Make sure the environment contains only strings
(since putenv needs a string)
"""
non_strings = []
for (k,v) in environment.items():
if not isinstance(v, basestring):
non_strings.append(k)
... |
Initialize a new Zappa project by creating a new zappa_settings.json in a guided process.
This should probably be broken up into few separate componants once it's stable.
Testing these inputs requires monkeypatching with mock, which isn't pretty. | def init(self, settings_file="zappa_settings.json"):
"""
Initialize a new Zappa project by creating a new zappa_settings.json in a guided process.
This should probably be broken up into few separate componants once it's stable.
Testing these inputs requires monkeypatching with mock, whi... |
Register or update a domain certificate for this env. | def certify(self, no_confirm=True, manual=False):
"""
Register or update a domain certificate for this env.
"""
if not self.domain:
raise ClickException("Can't certify a domain without " + click.style("domain", fg="red", bold=True) + " configured!")
if not no_confir... |
Spawn a debug shell. | def shell(self):
"""
Spawn a debug shell.
"""
click.echo(click.style("NOTICE!", fg="yellow", bold=True) + " This is a " + click.style("local", fg="green", bold=True) + " shell, inside a " + click.style("Zappa", bold=True) + " object!")
self.zappa.shell()
return |
Allows the execution of custom code between creation of the zip file and deployment to AWS.
:return: None | def callback(self, position):
"""
Allows the execution of custom code between creation of the zip file and deployment to AWS.
:return: None
"""
callbacks = self.stage_config.get('callbacks', {})
callback = callbacks.get(position)
if callback:
(mod_p... |
Print a warning if there's a new Zappa version available. | def check_for_update(self):
"""
Print a warning if there's a new Zappa version available.
"""
try:
version = pkg_resources.require("zappa")[0].version
updateable = check_new_version_available(version)
if updateable:
click.echo(click.sty... |
Load the local zappa_settings file.
An existing boto session can be supplied, though this is likely for testing purposes.
Returns the loaded Zappa object. | def load_settings(self, settings_file=None, session=None):
"""
Load the local zappa_settings file.
An existing boto session can be supplied, though this is likely for testing purposes.
Returns the loaded Zappa object.
"""
# Ensure we're passed a valid settings file.
... |
Return zappa_settings path as JSON or YAML (or TOML), as appropriate. | def get_json_or_yaml_settings(self, settings_name="zappa_settings"):
"""
Return zappa_settings path as JSON or YAML (or TOML), as appropriate.
"""
zs_json = settings_name + ".json"
zs_yml = settings_name + ".yml"
zs_yaml = settings_name + ".yaml"
zs_toml = setting... |
Load our settings file. | def load_settings_file(self, settings_file=None):
"""
Load our settings file.
"""
if not settings_file:
settings_file = self.get_json_or_yaml_settings()
if not os.path.isfile(settings_file):
raise ClickException("Please configure your zappa_settings file ... |
Ensure that the package can be properly configured,
and then create it. | def create_package(self, output=None):
"""
Ensure that the package can be properly configured,
and then create it.
"""
# Create the Lambda zip package (includes project and virtualenvironment)
# Also define the path the handler file so it can be copied to the zip
... |
Remove our local zip file. | def remove_local_zip(self):
"""
Remove our local zip file.
"""
if self.stage_config.get('delete_local_zip', True):
try:
if os.path.isfile(self.zip_path):
os.remove(self.zip_path)
if self.handler_path and os.path.isfile(self... |
Remove the local and S3 zip file after uploading and updating. | def remove_uploaded_zip(self):
"""
Remove the local and S3 zip file after uploading and updating.
"""
# Remove the uploaded zip from S3, because it is now registered..
if self.stage_config.get('delete_s3_zip', True):
self.zappa.remove_from_s3(self.zip_path, self.s3_b... |
Cleanup after the command finishes.
Always called: SystemExit, KeyboardInterrupt and any other Exception that occurs. | def on_exit(self):
"""
Cleanup after the command finishes.
Always called: SystemExit, KeyboardInterrupt and any other Exception that occurs.
"""
if self.zip_path:
# Only try to remove uploaded zip if we're running a command that has loaded credentials
if s... |
Parse, filter and print logs to the console. | def print_logs(self, logs, colorize=True, http=False, non_http=False, force_colorize=None):
"""
Parse, filter and print logs to the console.
"""
for log in logs:
timestamp = log['timestamp']
message = log['message']
if "START RequestId" in message:
... |
Determines if a log entry is an HTTP-formatted log string or not. | def is_http_log_entry(self, string):
"""
Determines if a log entry is an HTTP-formatted log string or not.
"""
# Debug event filter
if 'Zappa Event' in string:
return False
# IP address filter
for token in string.replace('\t', ' ').split(' '):
... |
Apply various heuristics to return a colorized version of a string.
If these fail, simply return the string in plaintext. | def colorize_log_entry(self, string):
"""
Apply various heuristics to return a colorized version of a string.
If these fail, simply return the string in plaintext.
"""
final_string = string
try:
# First, do stuff in square brackets
inside_squares... |
Parse and execute the prebuild_script from the zappa_settings. | def execute_prebuild_script(self):
"""
Parse and execute the prebuild_script from the zappa_settings.
"""
(pb_mod_path, pb_func) = self.prebuild_script.rsplit('.', 1)
try: # Prefer prebuild script in working directory
if pb_mod_path.count('.') >= 1: # Prebuild sc... |
Given a string, print a warning if this could
collide with a Zappa core package module.
Use for app functions and events. | def collision_warning(self, item):
"""
Given a string, print a warning if this could
collide with a Zappa core package module.
Use for app functions and events.
"""
namespace_collisions = [
"zappa.", "wsgi.", "middleware.", "handler.", "util.", "letsencrypt.... |
Ensure we're inside a virtualenv. | def check_venv(self):
""" Ensure we're inside a virtualenv. """
if self.zappa:
venv = self.zappa.get_current_venv()
else:
# Just for `init`, when we don't have settings yet.
venv = Zappa.get_current_venv()
if not venv:
raise ClickException(... |
Route all stdout to null. | def silence(self):
"""
Route all stdout to null.
"""
sys.stdout = open(os.devnull, 'w')
sys.stderr = open(os.devnull, 'w') |
Test the deployed endpoint with a GET request. | def touch_endpoint(self, endpoint_url):
"""
Test the deployed endpoint with a GET request.
"""
# Private APIGW endpoints most likely can't be reached by a deployer
# unless they're connected to the VPC by VPN. Instead of trying
# connect to the service, print a warning a... |
Permute all casings of a given string.
A pretty algorithm, via @Amber
http://stackoverflow.com/questions/6792803/finding-all-possible-case-permutations-in-python | def all_casings(input_string):
"""
Permute all casings of a given string.
A pretty algorithm, via @Amber
http://stackoverflow.com/questions/6792803/finding-all-possible-case-permutations-in-python
"""
if not input_string:
yield ""
else:
first = input_string[:1]
if fi... |
return a dict | def status_count(self, project):
'''
return a dict
'''
result = dict()
if project not in self.projects:
self._list_project()
if project not in self.projects:
return result
tablename = self._tablename(project)
for status, count in se... |
Get encoding from request headers or page head. | def get_encoding(headers, content):
"""Get encoding from request headers or page head."""
encoding = None
content_type = headers.get('content-type')
if content_type:
_, params = cgi.parse_header(content_type)
if 'charset' in params:
encoding = params['charset'].strip("'\"")
... |
encoding of Response.content.
if Response.encoding is None, encoding will be guessed
by header or content or chardet if available. | def encoding(self):
"""
encoding of Response.content.
if Response.encoding is None, encoding will be guessed
by header or content or chardet if available.
"""
if hasattr(self, '_encoding'):
return self._encoding
# content is unicode
if isinst... |
Content of the response, in unicode.
if Response.encoding is None and chardet module is available, encoding
will be guessed. | def text(self):
"""
Content of the response, in unicode.
if Response.encoding is None and chardet module is available, encoding
will be guessed.
"""
if hasattr(self, '_text') and self._text:
return self._text
if not self.content:
return u'... |
Returns the json-encoded content of the response, if any. | def json(self):
"""Returns the json-encoded content of the response, if any."""
if hasattr(self, '_json'):
return self._json
try:
self._json = json.loads(self.text or self.content)
except ValueError:
self._json = None
return self._json |
Returns a PyQuery object of the response's content | def doc(self):
"""Returns a PyQuery object of the response's content"""
if hasattr(self, '_doc'):
return self._doc
elements = self.etree
doc = self._doc = PyQuery(elements)
doc.make_links_absolute(utils.text(self.url))
return doc |
Returns a lxml object of the response's content that can be selected by xpath | def etree(self):
"""Returns a lxml object of the response's content that can be selected by xpath"""
if not hasattr(self, '_elements'):
try:
parser = lxml.html.HTMLParser(encoding=self.encoding)
self._elements = lxml.html.fromstring(self.content, parser=parser... |
Raises stored :class:`HTTPError` or :class:`URLError`, if one occurred. | def raise_for_status(self, allow_redirects=True):
"""Raises stored :class:`HTTPError` or :class:`URLError`, if one occurred."""
if self.status_code == 304:
return
elif self.error:
if self.traceback:
six.reraise(Exception, Exception(self.error), Traceback.... |
Do not send process status package back to scheduler.
It's used by callbacks like on_message, on_result etc... | def not_send_status(func):
"""
Do not send process status package back to scheduler.
It's used by callbacks like on_message, on_result etc...
"""
@functools.wraps(func)
def wrapper(self, response, task):
self._extinfo['not_send_status'] = True
function = func.__get__(self, self.... |
A decorator for setting the default kwargs of `BaseHandler.crawl`.
Any self.crawl with this callback will use this config. | def config(_config=None, **kwargs):
"""
A decorator for setting the default kwargs of `BaseHandler.crawl`.
Any self.crawl with this callback will use this config.
"""
if _config is None:
_config = {}
_config.update(kwargs)
def wrapper(func):
func._config = _config
re... |
method will been called every minutes or seconds | def every(minutes=NOTSET, seconds=NOTSET):
"""
method will been called every minutes or seconds
"""
def wrapper(func):
# mark the function with variable 'is_cronjob=True', the function would be
# collected into the list Handler._cron_jobs by meta class
func.is_cronjob = True
... |
Catch errors of rabbitmq then reconnect | def catch_error(func):
"""Catch errors of rabbitmq then reconnect"""
import amqp
try:
import pika.exceptions
connect_exceptions = (
pika.exceptions.ConnectionClosed,
pika.exceptions.AMQPConnectionError,
)
except ImportError:
connect_exceptions = ()... |
Reconnect to rabbitmq server | def reconnect(self):
"""Reconnect to rabbitmq server"""
import pika
import pika.exceptions
self.connection = pika.BlockingConnection(pika.URLParameters(self.amqp_url))
self.channel = self.connection.channel()
try:
self.channel.queue_declare(self.name)
... |
Reconnect to rabbitmq server | def reconnect(self):
"""Reconnect to rabbitmq server"""
parsed = urlparse.urlparse(self.amqp_url)
port = parsed.port or 5672
self.connection = amqp.Connection(host="%s:%s" % (parsed.hostname, port),
userid=parsed.username or 'guest',
... |
Put a task into task queue
when use heap sort, if we put tasks(with the same priority and exetime=0) into queue,
the queue is not a strict FIFO queue, but more like a FILO stack.
It is very possible that when there are continuous big flow, the speed of select is
slower than req... | def put(self, taskid, priority=0, exetime=0):
"""
Put a task into task queue
when use heap sort, if we put tasks(with the same priority and exetime=0) into queue,
the queue is not a strict FIFO queue, but more like a FILO stack.
It is very possible that when there are co... |
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