tests/test-clone

log: remove increasing windows usage in fastpath

The purpose of increasing windows is to allow backwards iteration on the
filelog  at a reasonable cost.
But is it needed?
 - if follow is False, we have no reason to iterate backwards.
   We basically just want to walk the complete filelog and yield all revisions
   within the revision range. We can do this forward or
   backwards, as it only reads the index.
 - when follow is True, we need to examine the contents of the filelog, and to
   do this efficiently we need to read the filelog forward.
   And on the other hand, to track ancestors and copies, we need to process
   revisions backwards. But is it necessary to use increasing windows
   for this?
   We can iterate over the complete filelog forward, stack the revisions, and
   read the reversed(pile), it does the same thing with a more readable code.

#!/bin/sh

echo
echo % prepare repo a
mkdir a
cd a
hg init
echo a > a
hg add a
hg commit -m test
echo first line > b
hg add b
# create a non-inlined filelog
python -c 'for x in range(10000): print x' >> data1
for j in 0 1 2 3 4 5 6 7 8 9; do
    cat data1 >> b
    hg commit -m test
done
echo % "list files in store/data (should show a 'b.d')"
for i in .hg/store/data/*; do
    echo $i
done

echo
echo % default operation
hg clone . ../b
cd ../b
cat a
hg verify

echo
echo % no update, with debug option
hg --debug clone -U . ../c
cd ../c
cat a 2>/dev/null || echo "a not present"
hg verify

echo
echo % default destination
mkdir ../d
cd ../d
hg clone ../a
cd a
hg cat a

echo
echo % "check that we drop the file: from the path before"
echo % "writing the .hgrc"
cd ../..
hg clone file:a e
grep 'file:' e/.hg/hgrc

echo
echo % check that path aliases are expanded
hg clone -q -U --config 'paths.foobar=a#0' foobar f
hg -R f showconfig paths.default | sed -e 's,.*/,,'

echo
echo % use --pull
hg clone --pull a g
hg -R g verify

echo
echo % clone to '.'
mkdir h
cd h
hg clone ../a .
cd ..

echo
echo
echo % "*** tests for option -u ***"
echo


echo
echo % "adding some more history to repo a"
cd a
echo % "tag ref1"
hg tag ref1
echo the quick brown fox >a
hg ci -m "hacked default"
echo % "updating back to ref1"
hg up ref1
echo
echo % "add branch 'stable' to repo a for later tests"
hg branch stable
echo some text >a
hg ci -m "starting branch stable"
echo % "tag ref2"
hg tag ref2
echo some more text >a
hg ci -m "another change for branch stable"
echo
echo % "updating back to ref2"
hg up ref2
echo
echo % "parents of repo a"
hg parents
echo
echo % "repo a has two heads"
hg heads
cd ..

echo
echo % "testing clone -U -u 1 a ua (must abort)"
hg clone -U -u 1 a ua

echo
echo % "testing clone -u . a ua"
hg clone -u . a ua
echo
echo % "repo ua has both heads"
hg -R ua heads
echo
echo % "same revision checked out in repo a and ua"
hg -R a parents --template "{node|short}\n"
hg -R ua parents --template "{node|short}\n"
rm -r ua

echo
echo % "testing clone --pull -u . a ua"
hg clone --pull -u . a ua
echo
echo % "repo ua has both heads"
hg -R ua heads
echo
echo % "same revision checked out in repo a and ua"
hg -R a parents --template "{node|short}\n"
hg -R ua parents --template "{node|short}\n"
rm -r ua

echo
echo % "testing clone -u stable a ua"
hg clone -u stable a ua
echo
echo % "repo ua has both heads"
hg -R ua heads
echo
echo % "branch stable is checked out"
hg -R ua parents
rm -r ua

echo
echo % "testing clone a ua"
hg clone a ua
echo
echo % "repo ua has both heads"
hg -R ua heads
echo
echo % "branch default is checked out"
hg -R ua parents
rm -r ua

echo
echo % "testing clone -u . a#stable ua"
hg clone -u . a#stable ua
echo
echo % "repo ua has only branch stable"
hg -R ua heads
echo
echo % "same revision checked out in repo a and ua"
hg -R a parents --template "{node|short}\n"
hg -R ua parents --template "{node|short}\n"
rm -r ua

echo
echo % "testing clone -u . -r stable a ua"
hg clone -u . -r stable a ua
echo
echo % "repo ua has only branch stable"
hg -R ua heads
echo
echo % "same revision checked out in repo a and ua"
hg -R a parents --template "{node|short}\n"
hg -R ua parents --template "{node|short}\n"
rm -r ua

echo
echo % "testing clone -r stable a ua"
hg clone -r stable a ua
echo
echo % "repo ua has only branch stable"
hg -R ua heads
echo
echo % "branch stable is checked out"
hg -R ua parents
rm -r ua

echo
echo % "testing clone -u . -r stable -r default a ua"
hg clone -u . -r stable -r default a ua
echo
echo % "repo ua has two heads"
hg -R ua heads
echo
echo % "same revision checked out in repo a and ua"
hg -R a parents --template "{node|short}\n"
hg -R ua parents --template "{node|short}\n"
rm -r ua

cat <<EOF > simpleclone.py
from mercurial import ui, hg
myui = ui.ui()
repo = hg.repository(myui, 'a')
hg.clone(myui, repo, dest="ua")
EOF

python simpleclone.py
rm -r ua

exit 0