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Use a self._raise_error helper and avoid passing the lineno around

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Based on a patch by @Richard2ndQuadrant.
This commit is contained in:
Abhijit Menon-Sen 2015-08-19 20:58:06 +05:30
parent 9133cd409c
commit 74aab6f726
1 changed files with 19 additions and 16 deletions
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35
lib/ansible/inventory/ini.py
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@ -65,6 +65,9 @@ class InventoryParser(object):
# Note: we could discard self.hosts after this point. # Note: we could discard self.hosts after this point.
def _raise_error(self, message):
raise AnsibleError("%s:%d: " % (self.filename, self.lineno) + message)
def _parse(self, lines): def _parse(self, lines):
''' '''
Populates self.groups from the given array of lines. Raises an error on Populates self.groups from the given array of lines. Raises an error on
@ -82,9 +85,9 @@ class InventoryParser(object):
groupname = 'ungrouped' groupname = 'ungrouped'
state = 'hosts' state = 'hosts'
i = 0 self.lineno = 0
for line in lines: for line in lines:
i += 1 self.lineno += 1
line = line.strip() line = line.strip()
@ -102,7 +105,7 @@ class InventoryParser(object):
state = state or 'hosts' state = state or 'hosts'
if state not in ['hosts', 'children', 'vars']: if state not in ['hosts', 'children', 'vars']:
title = ":".join(m.groups()) title = ":".join(m.groups())
raise AnsibleError("%s:%d: Section [%s] has unknown type: %s" % (self.filename, i, title, state)) self._raise_error("Section [%s] has unknown type: %s" % (title, state))
# If we haven't seen this group before, we add a new Group. # If we haven't seen this group before, we add a new Group.
# #
@ -116,7 +119,7 @@ class InventoryParser(object):
self.groups[groupname] = Group(name=groupname) self.groups[groupname] = Group(name=groupname)
if state == 'vars': if state == 'vars':
pending_declarations[groupname] = dict(line=i, state=state, name=groupname) pending_declarations[groupname] = dict(line=self.lineno, state=state, name=groupname)
# When we see a declaration that we've been waiting for, we can # When we see a declaration that we've been waiting for, we can
# delete the note. # delete the note.
@ -133,14 +136,14 @@ class InventoryParser(object):
# [groupname] contains host definitions that must be added to # [groupname] contains host definitions that must be added to
# the current group. # the current group.
if state == 'hosts': if state == 'hosts':
hosts = self._parse_host_definition(line, i) hosts = self._parse_host_definition(line)
for h in hosts: for h in hosts:
self.groups[groupname].add_host(h) self.groups[groupname].add_host(h)
# [groupname:vars] contains variable definitions that must be # [groupname:vars] contains variable definitions that must be
# applied to the current group. # applied to the current group.
elif state == 'vars': elif state == 'vars':
(k, v) = self._parse_variable_definition(line, i) (k, v) = self._parse_variable_definition(line)
self.groups[groupname].set_variable(k, v) self.groups[groupname].set_variable(k, v)
# [groupname:children] contains subgroup names that must be # [groupname:children] contains subgroup names that must be
@ -148,11 +151,11 @@ class InventoryParser(object):
# must themselves be declared as groups, but as before, they # must themselves be declared as groups, but as before, they
# may only be declared later. # may only be declared later.
elif state == 'children': elif state == 'children':
child = self._parse_group_name(line, i) child = self._parse_group_name(line)
if child not in self.groups: if child not in self.groups:
self.groups[child] = Group(name=child) self.groups[child] = Group(name=child)
pending_declarations[child] = dict(line=i, state=state, name=child, parent=groupname) pending_declarations[child] = dict(line=self.lineno, state=state, name=child, parent=groupname)
self.groups[groupname].add_child_group(self.groups[child]) self.groups[groupname].add_child_group(self.groups[child])
@ -162,7 +165,7 @@ class InventoryParser(object):
# This is a fencepost. It can happen only if the state checker # This is a fencepost. It can happen only if the state checker
# accepts a state that isn't handled above. # accepts a state that isn't handled above.
else: else:
raise AnsibleError("%s:%d: Entered unhandled state: %s" % (self.filename, i, state)) self._raise_error("Entered unhandled state: %s" % (state))
# Any entries in pending_declarations not removed by a group declaration # Any entries in pending_declarations not removed by a group declaration
# above mean that there was an unresolved forward reference. We report # above mean that there was an unresolved forward reference. We report
@ -175,7 +178,7 @@ class InventoryParser(object):
elif decl['state'] == 'children': elif decl['state'] == 'children':
raise AnsibleError("%s:%d: Section [%s:children] includes undefined group: %s" % (self.filename, decl['line'], decl['parent'], decl['name'])) raise AnsibleError("%s:%d: Section [%s:children] includes undefined group: %s" % (self.filename, decl['line'], decl['parent'], decl['name']))
def _parse_group_name(self, line, i): def _parse_group_name(self, line):
''' '''
Takes a single line and tries to parse it as a group name. Returns the Takes a single line and tries to parse it as a group name. Returns the
group name if successful, or raises an error. group name if successful, or raises an error.
@ -185,9 +188,9 @@ class InventoryParser(object):
if m: if m:
return m.group(1) return m.group(1)
raise AnsibleError("%s:%d: Expected group name, got: %s" % (self.filename, i, line)) self._raise_error("Expected group name, got: %s" % (line))
def _parse_variable_definition(self, line, i): def _parse_variable_definition(self, line):
''' '''
Takes a string and tries to parse it as a variable definition. Returns Takes a string and tries to parse it as a variable definition. Returns
the key and value if successful, or raises an error. the key and value if successful, or raises an error.
@ -202,9 +205,9 @@ class InventoryParser(object):
(k, v) = [e.strip() for e in line.split("=", 1)] (k, v) = [e.strip() for e in line.split("=", 1)]
return (k, self._parse_value(v)) return (k, self._parse_value(v))
raise AnsibleError("%s:%d: Expected key=value, got: %s" % (self.filename, i, line)) self._raise_error("Expected key=value, got: %s" % (line))
def _parse_host_definition(self, line, i): def _parse_host_definition(self, line):
''' '''
Takes a single line and tries to parse it as a host definition. Returns Takes a single line and tries to parse it as a host definition. Returns
a list of Hosts if successful, or raises an error. a list of Hosts if successful, or raises an error.
@ -223,7 +226,7 @@ class InventoryParser(object):
try: try:
tokens = shlex.split(line, comments=True) tokens = shlex.split(line, comments=True)
except ValueError as e: except ValueError as e:
raise AnsibleError("%s:%d: Error parsing host definition '%s': %s" % (self.filename, i, varstring, e)) self._raise_error("Error parsing host definition '%s': %s" % (varstring, e))
(hostnames, port) = self._expand_hostpattern(tokens[0]) (hostnames, port) = self._expand_hostpattern(tokens[0])
hosts = self._Hosts(hostnames, port) hosts = self._Hosts(hostnames, port)
@ -233,7 +236,7 @@ class InventoryParser(object):
variables = {} variables = {}
for t in tokens[1:]: for t in tokens[1:]:
if '=' not in t: if '=' not in t:
raise AnsibleError("%s:%d: Expected key=value host variable assignment, got: %s" % (self.filename, i, t)) self._raise_error("Expected key=value host variable assignment, got: %s" % (t))
(k, v) = t.split('=', 1) (k, v) = t.split('=', 1)
variables[k] = self._parse_value(v) variables[k] = self._parse_value(v)