1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
#!/usr/bin/env python3
import sys
def eprint(*args, **kwargs):
print(*args, file=sys.stderr, **kwargs)
def diff_to_added_lines(diff_file, repository_root, out_stream):
try:
import unidiff
except ImportError:
eprint("diff_to_added_lines.py requires unidiff, use `pip install --user unidiff` to install")
sys.exit(1)
import os.path
import json
# Create a set of all the files and the specific lines within that file that are in the diff
added_lines = dict()
for file_in_diff in unidiff.PatchSet.from_filename(diff_file):
filename = file_in_diff.target_file
# Skip files deleted in the tip (b side of the diff):
if filename == "/dev/null":
continue
assert filename.startswith("b/")
filename = os.path.join(repository_root, filename[2:])
if filename not in added_lines:
added_lines[filename] = []
added_lines[filename].append(0)
for diff_hunk in file_in_diff:
for diff_line in diff_hunk:
if diff_line.line_type == "+":
if filename not in added_lines:
added_lines[filename] = []
added_lines[filename].append(diff_line.target_line_no)
json.dump(added_lines, out_stream)
if __name__ == "__main__":
if len(sys.argv) != 3:
eprint("diff_to_added_lines.py: converts a unified-diff file into a JSON dictionary mapping filenames onto an array of added or modified line numbers")
eprint("Usage: diff_to_added_lines.py diff.patch repository_root_directory")
sys.exit(1)
diff_to_added_lines(sys.argv[1], sys.argv[2], sys.stdout)
diff_file = sys.argv[1]
repository_root = sys.argv[2]
|
