author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
Wed, 19 Dec 2012 14:46:57 +0100 | |
changeset 18118 | e70ff1e599f4 |
parent 18117 | 526e7ec5c96e |
child 18120 | 88990d3e3d75 |
permissions | -rw-r--r-- |
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# branchmap.py - logic to computes, maintain and stores branchmap for local repo |
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# |
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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from node import bin, hex, nullid, nullrev |
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import encoding |
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def read(repo): |
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partial = {} |
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try: |
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f = repo.opener("cache/branchheads") |
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lines = f.read().split('\n') |
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f.close() |
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except (IOError, OSError): |
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return {}, nullid, nullrev |
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try: |
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last, lrev = lines.pop(0).split(" ", 1) |
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last, lrev = bin(last), int(lrev) |
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if lrev >= len(repo) or repo[lrev].node() != last: |
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# invalidate the cache |
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raise ValueError('invalidating branch cache (tip differs)') |
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for l in lines: |
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if not l: |
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continue |
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node, label = l.split(" ", 1) |
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label = encoding.tolocal(label.strip()) |
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if not node in repo: |
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raise ValueError('invalidating branch cache because node '+ |
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'%s does not exist' % node) |
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partial.setdefault(label, []).append(bin(node)) |
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except KeyboardInterrupt: |
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raise |
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except Exception, inst: |
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if repo.ui.debugflag: |
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Pierre-Yves David <pierre-yves.david@logilab.fr>
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repo.ui.warn(str(inst), '\n') |
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partial, last, lrev = {}, nullid, nullrev |
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return partial, last, lrev |
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
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def write(repo, branches, tip, tiprev): |
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try: |
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f = repo.opener("cache/branchheads", "w", atomictemp=True) |
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f.write("%s %s\n" % (hex(tip), tiprev)) |
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for label, nodes in branches.iteritems(): |
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for node in nodes: |
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f.write("%s %s\n" % (hex(node), encoding.fromlocal(label))) |
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f.close() |
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except (IOError, OSError): |
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pass |