60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
import os
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import stat
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import subprocess
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import tempfile
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import shutil
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from lib import common
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strip = os.environ.get("STRIP", "strip")
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def _is_elf(filepath):
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with open(filepath, "rb") as f:
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return f.read(4) == b"\x7fELF"
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def autostrip(composer):
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processed_inodes = {}
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for ent in common.treedir(composer.workdir):
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if not ent.is_file(follow_symlinks=False):
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continue
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if not (os.access(ent.path, os.X_OK) or ".so" in ent.name):
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continue
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if not _is_elf(ent.path):
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continue
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stat_info = os.stat(ent.path)
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inode_key = (stat_info.st_dev, stat_info.st_ino)
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if inode_key in processed_inodes:
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continue
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processed_inodes[inode_key] = True
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oldperm = stat.S_IMODE(stat_info.st_mode)
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try:
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with tempfile.NamedTemporaryFile(mode='wb', delete=False) as tmp_file:
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tmp_path = tmp_file.name
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shutil.copy2(ent.path, tmp_path)
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os.chmod(tmp_path, 0o777)
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subprocess.run([strip, tmp_path], check=True)
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with open(tmp_path, 'rb') as tmp_file:
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stripped_data = tmp_file.read()
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with open(ent.path, 'r+b') as original_file:
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original_file.truncate(0)
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original_file.write(stripped_data)
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original_file.flush()
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os.fsync(original_file.fileno())
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os.chmod(ent.path, oldperm)
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os.unlink(tmp_path)
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except Exception as e:
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if 'tmp_path' in locals() and os.path.exists(tmp_path):
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os.unlink(tmp_path)
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raise RuntimeError(f"Failed to strip {ent.path}: {e}") from e
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