Mercurial > hg
annotate contrib/dumprevlog @ 29783:5d44197c208b
profiling: make profiling functions context managers (API)
This makes profiling more flexible since we can now call multiple
functions when a profiler is active. But the real reason for this
is to enable a future consumer to profile a function that returns
a generator. We can't do this from the profiling function itself
because functions can either be generators or have return values:
they can't be both. So therefore it isn't possible to have a generic
profiling function that can both consume and re-emit a generator
and return a value.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sun, 14 Aug 2016 18:25:22 -0700 |
parents | 6359b80f15fb |
children | a915465a731e |
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1 #!/usr/bin/env python |
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2 # Dump revlogs as raw data stream |
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3 # $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump |
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4 |
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5 from __future__ import absolute_import, print_function |
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6 |
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7 import sys |
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8 from mercurial import ( |
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9 node, |
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10 revlog, |
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11 util, |
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12 ) |
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13 |
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14 for fp in (sys.stdin, sys.stdout, sys.stderr): |
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15 util.setbinary(fp) |
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16 |
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17 for f in sys.argv[1:]: |
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18 binopen = lambda fn: open(fn, 'rb') |
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19 r = revlog.revlog(binopen, f) |
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20 print("file:", f) |
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21 for i in r: |
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22 n = r.node(i) |
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23 p = r.parents(n) |
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24 d = r.revision(n) |
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25 print("node:", node.hex(n)) |
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26 print("linkrev:", r.linkrev(i)) |
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27 print("parents:", node.hex(p[0]), node.hex(p[1])) |
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28 print("length:", len(d)) |
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29 print("-start-") |
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30 print(d) |
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31 print("-end-") |