Mercurial > hg
view contrib/undumprevlog @ 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 |
children |
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#!/usr/bin/env python3 # Undump a dump from dumprevlog # $ hg init # $ undumprevlog < repo.dump import sys from mercurial.node import bin from mercurial import ( encoding, revlog, transaction, vfs as vfsmod, ) from mercurial.utils import procutil from mercurial.revlogutils import ( constants as revlog_constants, ) for fp in (sys.stdin, sys.stdout, sys.stderr): procutil.setbinary(fp) opener = vfsmod.vfs(b'.', False) tr = transaction.transaction( sys.stderr.write, opener, {b'store': opener}, b"undump.journal" ) while True: l = sys.stdin.readline() if not l: break if l.startswith("file:"): f = encoding.strtolocal(l[6:-1]) assert f.endswith(b'.i') r = revlog.revlog( opener, target=(revlog_constants.KIND_OTHER, b'undump-revlog'), radix=f[:-2], ) procutil.stdout.write(b'%s\n' % f) elif l.startswith("node:"): n = bin(l[6:-1]) elif l.startswith("linkrev:"): lr = int(l[9:-1]) elif l.startswith("parents:"): p = l[9:-1].split() p1 = bin(p[0]) p2 = bin(p[1]) elif l.startswith("length:"): length = int(l[8:-1]) sys.stdin.readline() # start marker d = encoding.strtolocal(sys.stdin.read(length)) sys.stdin.readline() # end marker r.addrevision(d, tr, lr, p1, p2) tr.close()