Mercurial > hg
annotate contrib/dumprevlog @ 51582:d8287e43540f
phases: stop using `repo.set` in `remotephasessummary`
The `repository.set` create changectx on the fly, an expensive operation. Using
`repo.revs` and a direct rev-num → node-id translation will be significantly
faster.
This is especially true as we prepare ourself to no longer do the rev-num →
node-id transalation there.
The speedup is a bit lost in the overall noisyness of the slow phase discovery algorithm, but it save a small amount of time in my benchmark.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 05 Apr 2024 12:24:47 +0200 |
parents | 6000f5b25c9b |
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1 #!/usr/bin/env python3 |
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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 |
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6 import sys |
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7 from mercurial.node import hex |
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8 from mercurial import ( |
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9 encoding, |
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10 pycompat, |
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11 revlog, |
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12 ) |
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13 from mercurial.utils import procutil |
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14 |
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15 from mercurial.revlogutils import ( |
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16 constants as revlog_constants, |
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17 ) |
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18 |
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19 for fp in (sys.stdin, sys.stdout, sys.stderr): |
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20 procutil.setbinary(fp) |
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21 |
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22 |
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23 def binopen(path, mode=b'rb'): |
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24 if b'b' not in mode: |
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25 mode = mode + b'b' |
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26 return open(path, pycompat.sysstr(mode)) |
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27 |
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29 binopen.options = {} |
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31 |
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32 def printb(data, end=b'\n'): |
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33 sys.stdout.flush() |
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34 procutil.stdout.write(data + end) |
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35 |
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36 |
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37 for f in sys.argv[1:]: |
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38 localf = encoding.strtolocal(f) |
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39 if not localf.endswith(b'.i'): |
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40 print("file:", f, file=sys.stderr) |
47177 | 41 print(" invalid filename", file=sys.stderr) |
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42 |
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43 r = revlog.revlog( |
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44 binopen, |
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45 target=(revlog_constants.KIND_OTHER, b'dump-revlog'), |
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46 radix=localf[:-2], |
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47 ) |
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48 print("file:", f) |
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49 for i in r: |
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50 n = r.node(i) |
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51 p = r.parents(n) |
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52 d = r.revision(n) |
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53 printb(b"node: %s" % hex(n)) |
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54 printb(b"linkrev: %d" % r.linkrev(i)) |
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55 printb(b"parents: %s %s" % (hex(p[0]), hex(p[1]))) |
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56 printb(b"length: %d" % len(d)) |
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57 printb(b"-start-") |
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58 printb(d) |
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59 printb(b"-end-") |