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contrib: simple extension to practically convert a repo from tip delta to parentdelta
contrib: simple extension to practically convert a repo from tip delta to parentdelta

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compress.py
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# Copyright 2010 Pradeepkumar Gayam <in3xes@gmail.com>
#
# Author(s):
# Pradeepkumar Gayam <in3xes@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from mercurial import hg, ui, transaction, util, changegroup, localrepo, merge
import sys, os
def compress(ui, repo, dest, **opts):
dest = os.path.realpath(util.expandpath(dest))
target = localrepo.instance(ui, dest, create=1)
tr = transaction.transaction(sys.stderr.write,
util.opener('.', False), "compress")
src_cl = repo.changelog
tar_cl = target.changelog
changedfiles = set()
mmfs = {}
collect = changegroup.collector(src_cl, mmfs, changedfiles)
total = len(repo)
opener = target.sopener
for r in src_cl:
p = [src_cl.node(i) for i in src_cl.parentrevs(r)]
nd = tar_cl.addrevision(src_cl.revision(src_cl.node(r)), tr,
src_cl.linkrev(r), p[0], p[1])
collect(nd)
ui.progress(('adding changesets'), r, unit=('revisions'),
total=total)
src_mnfst = repo.manifest
tar_mnfst = target.manifest
for r in src_mnfst:
p = [src_mnfst.node(i) for i in src_mnfst.parentrevs(r)]
tar_mnfst.addrevision(src_mnfst.revision(src_mnfst.node(r)), tr,
src_mnfst.linkrev(r), p[0], p[1])
ui.progress(('adding manifest'), r, unit=('revisions'),
total=total)
total = len(changedfiles)
for cnt, f in enumerate(changedfiles):
sf = repo.file(f)
tf = target.file(f)
for r in sf:
p = [sf.node(i) for i in sf.parentrevs(r)]
a = tf.addrevision(sf.revision(sf.node(r)), tr, sf.linkrev(r),
p[0], p[1])
ui.progress(('adding files'), cnt, item=f, unit=('file'), total=total)
tr.close()
cmdtable = {
"compress" : (compress, [], "DEST")
}