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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Usage: check_source_count.py SEARCH_TERM COUNT ERROR_LOCATION REPLACEMENT [FILES...]
# Checks that FILES contains exactly COUNT matches of SEARCH_TERM. If it does
# not, an error message is printed, quoting ERROR_LOCATION, which should
# probably be the filename and line number of the erroneous call to
# check_source_count.py.
import re
import sys
search_string = sys.argv[1]
expected_count = int(sys.argv[2])
error_location = sys.argv[3]
replacement = sys.argv[4]
files = sys.argv[5:]
details = {}
count = 0
for f in files:
text = file(f).read()
match = re.findall(search_string, text)
if match:
num = len(match)
count += num
details[f] = num
if count == expected_count:
print(f"TEST-PASS | check_source_count.py {search_string} | {expected_count}")
else:
print(
f"TEST-UNEXPECTED-FAIL | check_source_count.py {search_string} | ",
end="",
)
if count < expected_count:
print(
f"There are fewer occurrences of /{search_string}/ than expected. "
"This may mean that you have removed some, but forgotten to "
f"account for it {error_location}."
)
else:
print(
f"There are more occurrences of /{search_string}/ than expected. We're trying "
f"to prevent an increase in the number of {search_string}'s, using {replacement} if "
"possible. If it is unavoidable, you should update the expected "
f"count {error_location}."
)
print(f"Expected: {expected_count}; found: {count}")
for k in sorted(details):
print(f"Found {details[k]} occurences in {k}")
sys.exit(-1)
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