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#!/usr/bin/env python
from __future__ import print_function
def filter_by_lines(diffed_file, added_lines_file, repository_root, in_stream, out_stream):
import os.path
import json
diffed_file = sys.argv[1]
added_lines_file = sys.argv[2]
repository_root = sys.argv[3]
# Get a set of all the files and the specific lines within that file to keep:
with open(added_lines_file, "r") as f:
added_lines = json.load(f)
# added_lines is a dict filename -> line_number list
# Make those into line_number sets instead:
for k in added_lines:
added_lines[k] = set(added_lines[k])
# Print the lines that are in the set
found = False
for line in in_stream:
line_parts = line.split(":")
if len(line_parts) < 3:
if found:
# Print lines between a matching warning and the next warning
out_stream.write(line)
continue
try:
linenum = int(line_parts[1])
found = False
filename = line_parts[0]
if not repository_root in filename:
filename = os.path.join(repository_root, line_parts[0])
if filename in added_lines and linenum in added_lines[filename]:
found = True
out_stream.write(line)
except ValueError:
if found:
out_stream.write(line)
continue
if __name__ == "__main__":
import sys
if len(sys.argv) != 4:
print("filter_by_lines.py: filters lines of the form filename:line_number:message, retaining those matching a particular filename and list of line numbers", file=sys.stderr)
print("Usage: filter_by_lines.py diffed_file added_lines.json repository_root_directory < warnings.txt", file=sys.stderr)
sys.exit(1)
filter_by_lines(sys.argv[1], sys.argv[2], sys.argv[3], sys.stdin, sys.stdout)
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