tests/svn-safe-append.py
author Arseniy Alekseyev <aalekseyev@janestreet.com>
Mon, 16 Jan 2023 12:10:20 +0000
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parent 48966 6000f5b25c9b
permissions -rwxr-xr-x
typing: import unconditionally This is needed if we're writing python3 signatures.
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#!/usr/bin/env python3
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__doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b.
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Without this svn will not detect workspace changes."""
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import os
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import stat
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import sys
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if sys.version_info[0] >= 3:
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    text = os.fsencode(sys.argv[1])
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    fname = os.fsencode(sys.argv[2])
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else:
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    text = sys.argv[1]
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    fname = sys.argv[2]
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f = open(fname, "ab")
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try:
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    before = os.fstat(f.fileno())[stat.ST_MTIME]
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    f.write(text)
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    f.write(b"\n")
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finally:
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    f.close()
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inc = 1
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now = os.stat(fname)[stat.ST_MTIME]
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while now == before:
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    t = now + inc
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    inc += 1
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    os.utime(fname, (t, t))
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    now = os.stat(fname)[stat.ST_MTIME]