tests/test-convert-baz

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.

#!/bin/sh

"$TESTDIR/hghave" baz || exit 80

baz my-id "mercurial <[e-mail]>"

echo "[extensions]" >> $HGRCPATH
echo "convert=" >> $HGRCPATH
echo 'graphlog =' >> $HGRCPATH

echo % create baz archive
baz make-archive baz@mercurial--convert hg-test-convert-baz

echo % initialize baz repo
mkdir baz-repo
cd baz-repo/
baz init-tree baz@mercurial--convert/baz--test--0
baz import

echo % create initial files
echo 'this is a file' > a
baz add a
mkdir src
baz add src
cd src
dd count=1 if=/dev/zero of=b > /dev/null 2> /dev/null
baz add b
# HACK: hide GNU tar-1.22 "tar: The --preserve option is deprecated, use --preserve-permissions --preserve-order instead"
baz commit -s "added a file, src and src/b (binary)" 2>&1 | grep -v '^tar'

echo % create link file and modify a
ln -s ../a a-link
baz add a-link
echo 'this a modification to a' >> ../a
baz commit -s "added link to a and modify a"

echo % create second link and modify b
ln -s ../a a-link-2
baz add a-link-2
dd count=1 seek=1 if=/dev/zero of=b > /dev/null 2> /dev/null
baz commit -s "added second link and modify b"

echo % b file to link and a-link-2 to regular file
rm -f a-link-2
echo 'this is now a regular file' > a-link-2
ln -sf ../a b
baz commit -s "file to link and link to file test"

echo % move a-link-2 file and src directory
cd ..
baz mv src/a-link-2 c
baz mv src test
baz commit -s "move and rename a-link-2 file and src directory"

echo % move and add the moved file again
echo e > e
baz add e
baz commit -s "add e"
baz mv e f
echo ee > e
baz add e
baz commit -s "move e and recreate it again"
cd ..

echo % converting baz repo to Mercurial
hg convert baz-repo baz-repo-hg

baz register-archive -d baz@mercurial--convert

glog()
{
    hg glog --template '{rev} "{desc|firstline}" files: {files}\n' "$@"
}

echo % show graph log
glog -R baz-repo-hg
hg up -q -R baz-repo-hg
hg -R baz-repo-hg manifest --debug
hg -R baz-repo-hg log -r 5 -r 7 -C --debug | grep copies