Mercurial > hg
annotate tests/svn-safe-append.py @ 30706:2e4862646f02
repair: speed up stripping of many roots
repair.strip() expects a set of root revisions to strip. It then
builds the full set of descedants by walking the descandants of
each. It is rare that more than a few roots get passed in, but if that
happens, it will wastefully walk the changelog for each root. So let's
just walk it once.
I noticed this because the narrowhg extension was passing not only
roots, but all the commits to strip. When there were tens of thousands
of commits to strip, this resulted in quadratic behavior with that
extension.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 04 Jan 2017 10:07:12 -0800 |
parents | bdba6a2015d0 |
children | ffa3026d4196 |
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1 #!/usr/bin/env python |
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py3: make tests/svn-safe-append.py use absolute_import
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3 from __future__ import absolute_import |
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5 __doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b. |
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6 Without this svn will not detect workspace changes.""" |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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7 |
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8 import os |
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9 import sys |
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10 |
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11 text = sys.argv[1] |
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12 fname = sys.argv[2] |
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13 |
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14 f = open(fname, "ab") |
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15 try: |
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16 before = os.fstat(f.fileno()).st_mtime |
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17 f.write(text) |
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18 f.write("\n") |
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19 finally: |
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20 f.close() |
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21 inc = 1 |
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22 now = os.stat(fname).st_mtime |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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23 while now == before: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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24 t = now + inc |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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25 inc += 1 |
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convert: fix test-convert-svn-* problems with mtime not changing
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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26 os.utime(fname, (t, t)) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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27 now = os.stat(fname).st_mtime |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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28 |