FilesExpand file tree

main

/

format_java.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

44 lines (39 loc) · 1.83 KB

main

/

format_java.py

Copy path

Top

File metadata and controls

• Code
• Blame

44 lines (39 loc) · 1.83 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

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

#!/usr/bin/env python3

"""Check/apply the repository's pinned Java format using JDK 17+."""

import argparse

import hashlib

import os

from pathlib import Path

import subprocess

import urllib.request

VERSION = "1.25.2"

SHA256 = "25157797a0a972c2290b5bc71530c4f7ad646458025e3484412a6e5a9b8c9aa6"

URL = ("https://repo.maven.apache.org/maven2/com/google/googlejavaformat/"

f"google-java-format/{VERSION}/google-java-format-{VERSION}-all-deps.jar")

ROOT = Path(__file__).resolve().parents[2]

def main():

parser = argparse.ArgumentParser(description=__doc__)

parser.add_argument("--apply", action="store_true")

args = parser.parse_args()

jar = ROOT / "target/tools" / f"google-java-format-{VERSION}.jar"

if not jar.exists():

with urllib.request.urlopen(URL, timeout=60) as response:

data = response.read()

if hashlib.sha256(data).hexdigest() != SHA256:

raise ValueError("Formatter download checksum mismatch")

jar.parent.mkdir(parents=True, exist_ok=True)

jar.write_bytes(data)

if hashlib.sha256(jar.read_bytes()).hexdigest() != SHA256:

raise ValueError("Cached formatter checksum mismatch")

java = str(Path(os.environ["JAVA_HOME"]) / "bin/java") if os.environ.get("JAVA_HOME") else "java"

files = sorted(str(p.relative_to(ROOT)) for base in (ROOT / "src", ROOT / "examples/src")

for p in base.rglob("*.java"))

command = [java, "-jar", str(jar)]

command += ["--replace"] if args.apply else ["--dry-run", "--set-exit-if-changed"]

subprocess.run(command + files, cwd=ROOT, check=True)

print(f"Java format {'applied' if args.apply else 'verified'}: {len(files)} files")

if __name__ == "__main__":

try:

main()

except subprocess.CalledProcessError:

raise SystemExit("Formatting differs; use make format on JDK 17+.")