8000 Use kwargs for several functions to move through all possible arguments by ildus · Pull Request #36 · postgrespro/testgres · GitHub
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Use kwargs for several functions to move through all possible arguments #36

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Merged
merged 3 commits into from
Feb 28, 2018
Merged

Use kwargs for several functions to move through all possible arguments #36

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8e5b09d
Use kwargs for several functions to move through all possible arguments
ildus Feb 28, 2018
2693dac
Use kwargs for PostgresNode.init
ildus Feb 28, 2018
9b06dc2
Remove unused constant from imports import node.py
ildus Feb 28, 2018
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44 changes: 14 additions & 30 deletions testgres/node.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,7 @@
HBA_CONF_FILE, \
RECOVERY_CONF_FILE, \
PG_LOG_FILE, \
UTILS_LOG_FILE, \
DEFAULT_XLOG_METHOD
UTILS_LOG_FILE

from .decorators import \
method_decorator, \
Expand Down Expand Up @@ -112,7 +111,7 @@ def __enter__(self):
def __exit__(self, type, value, traceback):
self.free_port()

# NOTE: ctrl+C does not count!
# NOTE: Ctrl+C does not count!
got_exception = type is not None and type != KeyboardInterrupt

c1 = self.cleanup_on_good_exit and not got_exception
Expand Down Expand Up @@ -254,19 +253,15 @@ def _collect_special_files(self):

return result

def init(self,
fsync=False,
unix_sockets=True,
allow_streaming=True,
initdb_params=None):
def init(self, initdb_params=None, **kwargs):
"""
Perform initdb for this node.

Args:
initdb_params: parameters for initdb (list).
fsync: should this node use fsync to keep data safe?
unix_sockets: should we enable UNIX sockets?
allow_streaming: should this node add a hba entry for replication?
initdb_params: parameters for initdb (list).

Returns:
This instance of PostgresNode.
Expand All @@ -281,9 +276,7 @@ def init(self,
params=initdb_params)

# initialize default config files
self.default_conf(fsync=fsync,
unix_sockets=unix_sockets,
allow_streaming=allow_streaming)
self.default_conf(**kwargs)

return self

Expand Down Expand Up @@ -681,16 +674,13 @@ def psql(self,
return process.returncode, out, err

@method_decorator(positional_args_hack(['dbname', 'query']))
def safe_psql(self,
query,
dbname=None,
username=None,
input=None):
def safe_psql(self, query=None, **kwargs):
"""
Execute a query using psql.

Args:
query: query to be executed.
filename: file with a query.
dbname: database name to connect to.
username: database user name.
input: raw input to be passed.
Expand All @@ -699,10 +689,7 @@ def safe_psql(self,
psql's output as str.
"""

ret, out, err = self.psql(query=query,
dbname=dbname,
username=username,
input=input)
ret, out, err = self.psql(query=query, **kwargs)
if ret:
raise QueryException((err or b'').decode('utf-8'), query)

Expand Down Expand Up @@ -858,37 +845,34 @@ def execute(self,

return res

def backup(self, username=None, xlog_method=DEFAULT_XLOG_METHOD):
def backup(self, **kwargs):
"""
Perform pg_basebackup.

Args:
username: database user name.
xlog_method: a method for collecting the logs ('fetch' | 'stream').
base_dir: the base directory for data files and logs

Returns:
A smart object of type NodeBackup.
"""

from .backup import NodeBackup
return NodeBackup(node=self,
username=username,
xlog_method=xlog_method)
return NodeBackup(node=self, **kwargs)

def replicate(self,
name=None,
username=None,
xlog_method=DEFAULT_XLOG_METHOD):
def replicate(self, name=None, **kwargs):
"""
Create a binary replica of this node.

Args:
name: replica's application name.
username: database user name.
xlog_method: a method for collecting the logs ('fetch' | 'stream').
base_dir: the base directory for data files and logs
"""

backup = self.backup(username=username, xlog_method=xlog_method)
backup = self.backup(**kwargs)

# transform backup into a replica
return backup.spawn_replica(name=name, destroy=True)
Expand Down
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