tests/test-log

Store empty (default) branch in branch cache, too.
Operations on this branch don't work otherwise.

Reading branches.cache had to be adjusted to allow an empty label.
Adjusted reading of the cache tip for symmetry, no functional change here.

#!/bin/sh

hg init a

cd a
echo a > a
hg ci -Ama -d '1 0'

hg cp a b
hg ci -mb -d '2 0'

mkdir dir
hg mv b dir
hg ci -mc -d '3 0'

hg mv a b
echo a > d
hg add d
hg ci -md -d '4 0'

hg mv dir/b e
hg ci -me -d '5 0'

hg log a
echo % -f, directory
hg log -f dir
echo % -f, but no args
hg log -f
echo % one rename
hg log -vf a
echo % many renames
hg log -vf e

echo % log copies
hg log -vC --template '{rev} {file_copies%filecopy}\n'

echo % log copies, non-linear manifest
hg up -C 3
hg mv dir/b e
echo foo > foo
hg ci -Ame2 -d '6 0'
hg log -vC --template '{rev} {file_copies%filecopy}\n' -r 5

echo '% log -p d'
hg log -pv d

# log --follow tests
hg init ../follow
cd ../follow
hg branch dummy # needed so -r "" doesn't point to the unnamed/default branch
echo base > base
hg ci -Ambase -d '1 0'

echo r1 >> base
hg ci -Amr1 -d '1 0'
echo r2 >> base
hg ci -Amr2 -d '1 0'

hg up -C 1
echo b1 > b1
hg ci -Amb1 -d '1 0'

echo % log -f
hg log -f

hg up -C 0
echo b2 > b2
hg ci -Amb2 -d '1 0'

echo % log -f -r 1:tip
hg log -f -r 1:tip

hg up -C 3
hg merge tip
hg ci -mm12 -d '1 0'

echo postm >> b1
hg ci -Amb1.1 -d'1 0'

echo % log --follow-first
hg log --follow-first

echo % log -P 2
hg log -P 2

echo '% log -r ""'
hg log -r ''

exit 0