Files
RedBear-OS/local/recipes/dev/libclc/source/llvm/utils/gn/gn.py
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

76 lines
2.4 KiB
Python
Executable File

#!/usr/bin/env python3
"""Calls `gn` with the right --dotfile= and --root= arguments for LLVM."""
# GN normally expects a file called '.gn' at the root of the repository.
# Since LLVM's GN build isn't supported, putting that file at the root
# is deemed inappropriate, which requires passing --dotfile= and -root= to GN.
# Since that gets old fast, this script automatically passes these arguments.
import os
import subprocess
import sys
THIS_DIR = os.path.dirname(__file__)
ROOT_DIR = os.path.join(THIS_DIR, "..", "..", "..")
def get_platform():
import platform
if sys.platform == "darwin":
return "mac-amd64" if platform.machine() != "arm64" else "mac-arm64"
if platform.machine() not in ("AMD64", "x86_64"):
return None
if sys.platform.startswith("linux"):
return "linux-amd64"
if sys.platform == "win32":
return "windows-amd64"
def print_no_gn(mention_get):
print("gn binary not found in PATH")
if mention_get:
print("run llvm/utils/gn/get.py to download a binary and try again, or")
print("follow https://gn.googlesource.com/gn/#getting-started")
return 1
def main():
# Find real gn executable.
gn = "gn"
if (
subprocess.call(
"gn --version",
stdout=subprocess.DEVNULL,
stderr=subprocess.STDOUT,
shell=True,
)
!= 0
):
# Not on path. See if get.py downloaded a prebuilt binary and run that
# if it's there, or suggest to run get.py if it isn't.
platform = get_platform()
if not platform:
return print_no_gn(mention_get=False)
gn = os.path.join(os.path.dirname(__file__), "bin", platform, "gn")
if not os.path.exists(gn + (".exe" if sys.platform == "win32" else "")):
return print_no_gn(mention_get=True)
# Compute --dotfile= and --root= args to add.
extra_args = []
gn_main_arg = next((x for x in sys.argv[1:] if not x.startswith("-")), None)
if gn_main_arg != "help": # `gn help` gets confused by the switches.
cwd = os.getcwd()
dotfile = os.path.relpath(os.path.join(THIS_DIR, ".gn"), cwd)
root = os.path.relpath(ROOT_DIR, cwd)
extra_args = ["--dotfile=" + dotfile, "--root=" + root]
# Run GN command with --dotfile= and --root= added.
cmd = [gn] + extra_args + sys.argv[1:]
sys.exit(subprocess.call(cmd))
if __name__ == "__main__":
main()