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69 lines
2.1 KiB
69 lines
2.1 KiB
#!/usr/bin/env python3
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import os
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import sys
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import tempfile
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from posix_parity import fail
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from posix_parity import join
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from posix_parity import mergerfs_get_option
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from posix_parity import mergerfs_set_option
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from posix_parity import touch
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def list_and_stat(dirpath):
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out = {}
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for name in os.listdir(dirpath):
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if name in (".", ".."):
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continue
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st = os.lstat(os.path.join(dirpath, name))
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out[name] = (st.st_mode & 0xF000, st.st_size)
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return out
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_posix_readdir_plus <mountpoint>", file=sys.stderr)
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return 1
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mount = sys.argv[1]
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with tempfile.TemporaryDirectory() as native:
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merge_dir = join(mount, "posix-readdir-plus/dir")
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native_dir = join(native, "posix-readdir-plus/dir")
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for i in range(40):
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touch(join(merge_dir, f"f{i:03d}"), bytes(str(i), "ascii"))
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touch(join(native_dir, f"f{i:03d}"), bytes(str(i), "ascii"))
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# Exercise mapping from readdir entries to immediate getattr calls.
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m_map = list_and_stat(merge_dir)
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n_map = list_and_stat(native_dir)
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if m_map != n_map:
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return fail("readdir+getattr map mismatch between mergerfs and native")
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# Optionally toggle readdir policy and ensure semantic output stays stable.
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try:
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orig = mergerfs_get_option(mount, "func.readdir")
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except (PermissionError, FileNotFoundError, OSError):
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return 0
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try:
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for mode in ("seq", "cosr:2:2", "cor:2:2"):
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mergerfs_set_option(mount, "func.readdir", mode)
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got = list_and_stat(merge_dir)
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if got != m_map:
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return fail(f"func.readdir={mode} changed readdir+getattr semantic output")
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except (PermissionError, FileNotFoundError, OSError):
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return 0
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finally:
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try:
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mergerfs_set_option(mount, "func.readdir", orig)
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except OSError:
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pass
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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