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Add --since option to check files modified since a given commit

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2023-06-22 20:29:41 +02:00
parent 22eb82cb8d
commit 43838b8a24
1 changed files with 24 additions and 9 deletions
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33
scripts/code_style.py
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@ -22,7 +22,7 @@ import os
import re
import subprocess
import sys
from typing import FrozenSet, List
from typing import FrozenSet, List, Optional
UNCRUSTIFY_SUPPORTED_VERSION = "0.75.1"
CONFIG_FILE = ".uncrustify.cfg"
@ -63,19 +63,31 @@ def list_generated_files() -> FrozenSet[str]:
checks = re.findall(CHECK_CALL_RE, content)
return frozenset(word for s in checks for word in s.split())
def get_src_files() -> List[str]:
def get_src_files(since: Optional[str]) -> List[str]:
"""
Use git to get a list of the source files.
The optional argument since is a commit, indicating to only list files
that have changed since that commit. Without this argument, list all
files known to git.
Only C files are included, and certain files (generated, or 3rdparty)
are excluded.
"""
git_ls_files_cmd = ["git", "ls-files",
"*.[hc]",
"tests/suites/*.function",
"scripts/data_files/*.fmt"]
output = subprocess.check_output(git_ls_files_cmd,
universal_newlines=True)
if since is None:
git_ls_files_cmd = ["git", "ls-files",
"*.[hc]",
"tests/suites/*.function",
"scripts/data_files/*.fmt"]
output = subprocess.check_output(git_ls_files_cmd,
universal_newlines=True)
else:
git_ls_files_cmd = ["git", "diff", "--name-only", since, "--",
"*.[hc]",
"tests/suites/*.function",
"scripts/data_files/*.fmt"]
output = subprocess.check_output(git_ls_files_cmd,
universal_newlines=True)
src_files = output.split()
generated_files = list_generated_files()
@ -180,6 +192,9 @@ def main() -> int:
parser.add_argument('-f', '--fix', action='store_true',
help=('modify source files to fix the code style '
'(default: print diff, do not modify files)'))
parser.add_argument('-s', '--since', metavar='COMMIT',
help=('only check files modified since the specified commit'
' (e.g. --since=HEAD~3 or --since=development)'))
# --subset is almost useless: it only matters if there are no files
# ('code_style.py' without arguments checks all files known to Git,
# 'code_style.py --subset' does nothing). In particular,
@ -192,7 +207,7 @@ def main() -> int:
args = parser.parse_args()
covered = frozenset(get_src_files())
covered = frozenset(get_src_files(args.since))
# We only check files that are known to git
if args.subset or args.operands:
src_files = [f for f in args.operands if f in covered]