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Check for regexp match when using insertbefore or insertafter (#36474)

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Add tests to cover this scenario
Fixes #36156
This commit is contained in:
Sam Doran 2018-02-21 17:03:38 -05:00 • committed by GitHub
commit 723daf3e3a
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4 changed files with 220 additions and 29 deletions
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63
lib/ansible/modules/files/lineinfile.py
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@ -42,10 +42,10 @@ options:
regexp:
description:
- The regular expression to look for in every line of the file. For
C(state=present), the pattern to replace if found; only the last line
C(state=present), the pattern to replace if found. Only the last line
found will be replaced. For C(state=absent), the pattern of the line(s)
to remove. Uses Python regular expressions; see
U(http://docs.python.org/2/library/re.html).
to remove. Uses Python regular expressions.
See U(http://docs.python.org/2/library/re.html).
version_added: '1.7'
state:
description:
@ -282,7 +282,7 @@ def present(module, dest, regexp, line, insertafter, insertbefore, create,
if firstmatch:
break
if insertbefore:
# + 1 for the previous line
# index[1] for the previous line
index[1] = lineno
if firstmatch:
break
@ -301,44 +301,49 @@ def present(module, dest, regexp, line, insertafter, insertbefore, create,
if not b_new_line.endswith(b_linesep):
b_new_line += b_linesep
# Add lines when the regexp match already exists somewhere else in the file
if insertafter and insertafter != 'EOF':
# If a regexp is specified and a match is found anywhere in the file, do
# not insert the line before or after.
if regexp is None and m:
# Ensure there is a line separator after the found string
# at the end of the file.
if b_lines and not b_lines[-1][-1:] in (b('\n'), b('\r')):
b_lines[-1] = b_lines[-1] + b_linesep
# Insert lines
if insertafter and insertafter != 'EOF':
# If the line to insert after is at the end of the file
# use the appropriate index value.
if len(b_lines) == index[1]:
if b_lines[index[1] - 1].rstrip(b('\r\n')) != b_line:
b_lines.append(b_line + b_linesep)
# Ensure there is a line separator after the found string
# at the end of the file.
if b_lines and not b_lines[-1][-1:] in (b('\n'), b('\r')):
b_lines[-1] = b_lines[-1] + b_linesep
# If the line to insert after is at the end of the file
# use the appropriate index value.
if len(b_lines) == index[1]:
if b_lines[index[1] - 1].rstrip(b('\r\n')) != b_line:
b_lines.append(b_line + b_linesep)
msg = 'line added'
changed = True
elif b_lines[index[1]].rstrip(b('\r\n')) != b_line:
b_lines.insert(index[1], b_line + b_linesep)
msg = 'line added'
changed = True
elif b_lines[index[1]].rstrip(b('\r\n')) != b_line:
b_lines.insert(index[1], b_line + b_linesep)
msg = 'line added'
changed = True
elif insertbefore:
# If the line to insert before is at the beginning of the file
# use the appropriate index value.
if index[1] == 0:
if b_lines[index[1]].rstrip(b('\r\n')) != b_line:
elif insertbefore:
# If the line to insert before is at the beginning of the file
# use the appropriate index value.
if index[1] == 0:
if b_lines[index[1]].rstrip(b('\r\n')) != b_line:
b_lines.insert(index[1], b_line + b_linesep)
msg = 'line replaced'
changed = True
elif b_lines[index[1] - 1].rstrip(b('\r\n')) != b_line:
b_lines.insert(index[1], b_line + b_linesep)
msg = 'line replaced'
changed = True
elif b_lines[index[1] - 1].rstrip(b('\r\n')) != b_line:
b_lines.insert(index[1], b_line + b_linesep)
msg = 'line replaced'
changed = True
elif b_lines[index[0]] != b_new_line:
b_lines[index[0]] = b_new_line
msg = 'line replaced'
changed = True
elif backrefs:
# Do absolutely nothing, since it's not safe generating the line
# without the regexp matching to populate the backrefs.