setdiscovery: fix hang when #heads>200 (
issue2971)
When setting up the next sample, we always add all of the heads, regardless
of the desired max sample size. But if the number of heads exceeds this
size, then we don't add any more nodes from the still undecided set.
(This is debatable per se, and I'll investigate it, but it's how we designed
it at the moment.)
The bug was that we always added the overall heads, not the heads of the
remaining undecided set. Thus, if #heads>200 (desired sample size), we
did not make progress any longer.
test stripping of filelogs where the linkrev doesn't always increase
$ echo '[extensions]' >> $HGRCPATH
$ echo 'hgext.mq =' >> $HGRCPATH
$ hg init orig
$ cd orig
$ commit()
> {
> hg up -qC null
> count=1
> for i in "$@"; do
> for f in $i; do
> echo $count > $f
> done
> count=`expr $count + 1`
> done
> hg commit -qAm "$*"
> }
2 1 0 2 0 1 2
$ commit '201 210'
$ commit '102 120' '210'
$ commit '021'
$ commit '201' '021 120'
$ commit '012 021' '102 201' '120 210'
$ commit 'manifest-file'
$ commit '102 120' '012 210' '021 201'
$ commit '201 210' '021 120' '012 102'
$ HGUSER=another-user; export HGUSER
$ commit 'manifest-file'
$ commit '012' 'manifest-file'
$ cd ..
$ hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed
$ cd crossed
$ hg debugindex --manifest
rev offset length base linkrev nodeid p1 p2
0 0 112 0 0 6f105cbb914d 000000000000 000000000000
1 112 56 1 3 1b55917b3699 000000000000 000000000000
2 168 123 1 1 8f3d04e263e5 000000000000 000000000000
3 291 122 1 2 f0ef8726ac4f 000000000000 000000000000
4 413 87 4 4 0b76e38b4070 000000000000 000000000000
$ for i in 012 021 102 120 201 210 manifest-file; do
> echo $i
> hg debugindex $i
> echo
> done
012
rev offset length base linkrev nodeid p1 p2
0 0 3 0 0 b8e02f643373 000000000000 000000000000
1 3 3 1 1 5d9299349fc0 000000000000 000000000000
2 6 3 2 2 2661d26c6496 000000000000 000000000000
021
rev offset length base linkrev nodeid p1 p2
0 0 3 0 0 b8e02f643373 000000000000 000000000000
1 3 3 1 2 5d9299349fc0 000000000000 000000000000
2 6 3 2 1 2661d26c6496 000000000000 000000000000
102
rev offset length base linkrev nodeid p1 p2
0 0 3 0 1 b8e02f643373 000000000000 000000000000
1 3 3 1 0 5d9299349fc0 000000000000 000000000000
2 6 3 2 2 2661d26c6496 000000000000 000000000000
120
rev offset length base linkrev nodeid p1 p2
0 0 3 0 1 b8e02f643373 000000000000 000000000000
1 3 3 1 2 5d9299349fc0 000000000000 000000000000
2 6 3 2 0 2661d26c6496 000000000000 000000000000
201
rev offset length base linkrev nodeid p1 p2
0 0 3 0 2 b8e02f643373 000000000000 000000000000
1 3 3 1 0 5d9299349fc0 000000000000 000000000000
2 6 3 2 1 2661d26c6496 000000000000 000000000000
210
rev offset length base linkrev nodeid p1 p2
0 0 3 0 2 b8e02f643373 000000000000 000000000000
1 3 3 1 1 5d9299349fc0 000000000000 000000000000
2 6 3 2 0 2661d26c6496 000000000000 000000000000
manifest-file
rev offset length base linkrev nodeid p1 p2
0 0 3 0 3 b8e02f643373 000000000000 000000000000
1 3 3 1 4 5d9299349fc0 000000000000 000000000000
$ cd ..
$ for i in 0 1 2 3 4; do
> hg clone -q -U --pull crossed $i
> echo "% Trying to strip revision $i"
> hg --cwd $i strip $i
> echo "% Verifying"
> hg --cwd $i verify
> echo
> done
% Trying to strip revision 0
saved backup bundle to $TESTTMP/0/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 15 total revisions
% Trying to strip revision 1
saved backup bundle to $TESTTMP/1/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 14 total revisions
% Trying to strip revision 2
saved backup bundle to $TESTTMP/2/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 14 total revisions
% Trying to strip revision 3
saved backup bundle to $TESTTMP/3/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 19 total revisions
% Trying to strip revision 4
saved backup bundle to $TESTTMP/4/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 19 total revisions