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Output diff without capturing it

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Instead of capturing the output of diff and printing it, let diff do its
own outputting and se the return code to decide what to do.

This also means that the conversion of stdout to UTF-8 is not necessary,
as the reason it was needed was for printing diffs of files with UTF-8
characters in them.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-01-24 18:08:49 +00:00
parent 089d0d08a0
commit ce42cc24d1
1 changed files with 7 additions and 6 deletions
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13
scripts/code_style.py
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@ -115,13 +115,14 @@ def check_style_is_correct(src_file_list: List[str]) -> bool:
# file with the extension ".uncrustify". To get the changes (if any)
# simply diff the 2 files.
diff_cmd = ["diff", "-u", src_file, src_file + ".uncrustify"]
result = subprocess.run(diff_cmd, stdout=subprocess.PIPE, \
stderr=STDERR_UTF8, check=False)
if len(result.stdout) > 0:
print(src_file + " - Incorrect code style.", file=STDOUT_UTF8)
print("File changed - diff:", file=STDOUT_UTF8)
print(str(result.stdout, "utf-8"), file=STDOUT_UTF8)
cp = subprocess.run(diff_cmd, check=False)
if cp.returncode == 1:
print(src_file + " changed - code style is incorrect.", file=STDOUT_UTF8)
style_correct = False
elif cp.returncode != 0:
raise subprocess.CalledProcessError(cp.returncode, cp.args,
cp.stdout, cp.stderr)
# Tidy up artifact
os.remove(src_file + ".uncrustify")