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Break this out into a reusable function and document regex shortcomings.

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This commit is contained in:
Richard C Isaacson 2014-03-05 10:50:58 -06:00
parent 49bd8b0b35
commit 38abd5e20e
2 changed files with 36 additions and 21 deletions
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23
lib/ansible/inventory/ini.py
View file

@ -23,6 +23,7 @@ from ansible.inventory.group import Group
from ansible.inventory.expand_hosts import detect_range
from ansible.inventory.expand_hosts import expand_hostname_range
from ansible import errors
import ansible.utils as utils
import shlex
import re
import ast
@ -68,27 +69,7 @@ class InventoryParser(object):
# Split off any comments that are not contained in a variable.
if "#" in line:
split_line = line.split("#")
instances = len(split_line) - 1
if instances > 0:
marker = 0
while marker < instances:
if ("=\"" in split_line[marker] and "\"" in split_line[marker + 1]) or (
"='" in split_line[marker] and "'" in split_line[marker + 1]):
marker += 1
else:
if marker == 0:
line = split_line[marker]
else:
# We have multiple fragments that we need to combine back together.
# rekram is us reversing that work we did with marker.
rekram = 0
new_line = split_line[rekram]
while marker > rekram:
rekram += 1
new_line = new_line + "#" + split_line[rekram]
line = new_line
break
line = utils.split_unquoted_hash(line)
# Clean up the end of the line.
line = line.strip()

34
lib/ansible/utils/__init__.py
View file

@ -1071,3 +1071,37 @@ def random_password(length=20, chars=C.DEFAULT_PASSWORD_CHARS):
password.append(new_char)
return ''.join(password)
def split_unquoted_hash(line):
'''
Carve off comments from a line which are not contained in quotes and a part of an assignment.
'''
# We would really like to have this using a regex to make it less code. For instance:
# line = re.split('(?<!=["|\'].*)#(?!.*?["|\']).*', line)[0]
# this has the problem that it comes back with a "sre_constants.error: look-behind requires fixed-width pattern"
if "#" in line:
split_line = line.split("#")
instances = len(split_line) - 1
if instances > 0:
marker = 0
while marker < instances:
if ("=\"" in split_line[marker] and "\"" in split_line[marker + 1]) or (
"='" in split_line[marker] and "'" in split_line[marker + 1]):
marker += 1
else:
if marker == 0:
line = split_line[marker]
else:
# We have multiple fragments that we need to combine back together.
# rekram is us reversing that work we did with marker.
rekram = 0
new_line = split_line[rekram]
while marker > rekram:
rekram += 1
new_line = new_line + "#" + split_line[rekram]
line = new_line
break
return line