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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(
"TEST-PASS | check_source_count.py {0} | {1}".format(
search_string, expected_count
)
)
else:
print(
"TEST-UNEXPECTED-FAIL | check_source_count.py {0} | ".format(search_string),
end="",
)
if count < expected_count:
print(
"There are fewer occurrences of /{0}/ than expected. "
"This may mean that you have removed some, but forgotten to "
"account for it {1}.".format(search_string, error_location)
)
else:
print(
"There are more occurrences of /{0}/ than expected. We're trying "
"to prevent an increase in the number of {1}'s, using {2} if "
"possible. If it is unavoidable, you should update the expected "
"count {3}.".format(
search_string, search_string, replacement, error_location
)
)
print("Expected: {0}; found: {1}".format(expected_count, count))
for k in sorted(details):
print("Found {0} occurences in {1}".format(details[k], k))
sys.exit(-1)
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