view tests/test-issue1306 @ 7654:816b708f23af

store all heads of a branch in the branch cache

All heads of branches will be stored in a new cache file 'branchheads.cache'
within the .hg directory. The old 'branch.cache' file from older versions
will be ignored.

The new cache contents are formatted line-by-line as '{node} {branchtag}\n'.
This is the same as the previous format. Now, every head is recorded in
an oldest -> tipmost order.

The localrepo.branchheads function is reworked to use the data from the cache.

echo % initialize remote repo with branches
hg init remote
cd remote
echo a > a
hg ci -Ama
hg branch br
hg ci -Amb
echo c > c
hg ci -Amc
hg log

cd ..
echo % try cloning -r branch
hg clone -rbr remote local1
hg -R local1 parents

echo % try cloning -rother clone#branch
hg clone -r0 remote#br local2
hg -R local2 parents

echo % try cloning -r1 clone#branch
hg clone -r1 remote#br local3
hg -R local3 parents