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#!/usr/bin/python3
import argparse
import contextlib
import os
import shutil
import subprocess
import sys
def format_title(title):
box = {
'tl': '╔', 'tr': '╗', 'bl': '╚', 'br': '╝', 'h': '═', 'v': '║',
}
hline = box['h'] * (len(title) + 2)
return '\n'.join([
f"{box['tl']}{hline}{box['tr']}",
f"{box['v']} {title} {box['v']}",
f"{box['bl']}{hline}{box['br']}",
])
def rm_rf(path):
try:
shutil.rmtree(path)
except FileNotFoundError:
pass
def sanitize_path(name):
return name.replace('/', '-')
def get_current_revision():
revision = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD'],
encoding='utf-8').strip()
if revision == 'HEAD':
# This is a detached HEAD, get the commit hash
revision = subprocess.check_output(['git', 'rev-parse', 'HEAD']).strip().decode('utf-8')
return revision
@contextlib.contextmanager
def checkout_git_revision(revision):
current_revision = get_current_revision()
subprocess.check_call(['git', 'checkout', '-q', revision])
try:
yield
finally:
subprocess.check_call(['git', 'checkout', '-q', current_revision])
def build_install(revision):
build_dir = '_build'
dest_dir = os.path.abspath(sanitize_path(revision))
print(format_title(f'# Building and installing {revision} in {dest_dir}'),
end='\n\n', flush=True)
with checkout_git_revision(revision):
rm_rf(build_dir)
rm_rf(revision)
subprocess.check_call(['meson', build_dir,
'--prefix=/usr', '--libdir=lib',
'-Db_coverage=false', '-Dgtkdoc=false', '-Dtests=false'])
subprocess.check_call(['ninja', '-v', '-C', build_dir])
subprocess.check_call(['ninja', '-v', '-C', build_dir, 'install'],
env={'DESTDIR': dest_dir})
return dest_dir
def compare(old_tree, new_tree):
print(format_title(f'# Comparing the two ABIs'), end='\n\n', flush=True)
old_headers = os.path.join(old_tree, 'usr', 'include')
old_lib = os.path.join(old_tree, 'usr', 'lib', 'libgnome-bluetooth.so')
new_headers = os.path.join(new_tree, 'usr', 'include')
new_lib = os.path.join(new_tree, 'usr', 'lib', 'libgnome-bluetooth.so')
subprocess.check_call([
'abidiff', '--headers-dir1', old_headers, '--headers-dir2', new_headers,
'--drop-private-types', '--fail-no-debug-info', '--no-added-syms', old_lib, new_lib])
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('old', help='the previous revision, considered the reference')
parser.add_argument('new', help='the new revision, to compare to the reference')
args = parser.parse_args()
if args.old == args.new:
print("Let's not waste time comparing something to itself")
sys.exit(0)
old_tree = build_install(args.old)
new_tree = build_install(args.new)
try:
compare(old_tree, new_tree)
except Exception as e:
print ('ABI comparison failed: '+ str(e))
sys.exit(1)
print(f'Hurray! {args.old} and {args.new} are ABI-compatible!')
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