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[BOLT][UTILS] Add nfc-check-setup --switch-back option

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Add an option to switch repo revision back, handling stashing automatically.

Reviewed By: rafauler

Differential Revision: https://reviews.llvm.org/D128243
This commit is contained in:
Amir Ayupov 2022-08-17 17:37:13 -07:00
parent e3d64ccf9f
commit 330eec139e
1 changed files with 23 additions and 10 deletions
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33
bolt/utils/nfc-check-setup.py
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@ -26,7 +26,10 @@ def main():
Passes the options through to llvm-bolt-wrapper.
'''))
parser.add_argument('build_dir', nargs='?', default=os.getcwd(),
help='Path to BOLT build directory, default is current directory')
help='Path to BOLT build directory, default is current '
'directory')
parser.add_argument('--switch-back', default=False, action='store_true',
help='Checkout back to the starting revision')
args, wrapper_args = parser.parse_known_args()
bolt_path = f'{args.build_dir}/bin/llvm-bolt'
@ -50,8 +53,13 @@ def main():
# memorize the old hash for logging
old_ref = get_git_ref_or_rev(source_dir)
# save local changes before checkout
subprocess.run(shlex.split("git stash"), cwd=source_dir)
# determine whether a stash is needed
stash = subprocess.run(shlex.split("git status --porcelain"), cwd=source_dir,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
text=True).stdout
if stash:
# save local changes before checkout
subprocess.run(shlex.split("git stash"), cwd=source_dir)
# check out the previous commit
subprocess.run(shlex.split("git checkout -f HEAD^"), cwd=source_dir)
# get the parent commit hash for logging
@ -65,17 +73,22 @@ def main():
ini = subprocess.check_output(
shlex.split(
f"{wrapper_path} {bolt_path}.old {bolt_path}.new") + wrapper_args,
text=True)
text=True)
with open(f'{args.build_dir}/bin/llvm-bolt-wrapper.ini', 'w') as f:
f.write(ini)
# symlink llvm-bolt-wrapper
os.symlink(wrapper_path, bolt_path)
print(f"The repository {source_dir} has been switched from rev {old_ref} "
f"to {new_ref}. Local changes were stashed. Switch back using\n\t"
f"git checkout {old_ref}\n"
"Current build directory is ready to run BOLT tests, e.g.\n\t"
"bin/llvm-lit -sv tools/bolt/test\nor\n\t"
"bin/llvm-lit -sv tools/bolttests")
if args.switch_back:
if stash:
subprocess.run(shlex.split("git stash pop"), cwd=source_dir)
subprocess.run(shlex.split(f"git checkout {old_ref}"), cwd=source_dir)
else:
print(f"The repository {source_dir} has been switched from {old_ref} "
f"to {new_ref}. Local changes were stashed. Switch back using\n\t"
f"git checkout {old_ref}\n")
print(f"Build directory {args.build_dir} is ready to run BOLT tests, e.g.\n"
"\tbin/llvm-lit -sv tools/bolt/test\nor\n"
"\tbin/llvm-lit -sv tools/bolttests")
if __name__ == "__main__":