view tests/test-issue672 @ 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.

#!/bin/sh

# 0-2-4
#  \ \ \
#   1-3-5
#
# rename in #1, content change in #4.

hg init t
cd t

touch 1
touch 2
hg commit -Am init -d "0 0"  # 0

hg rename 1 1a
hg commit -m rename -d "0 0" # 1

hg co -C 0
echo unrelated >> 2
hg ci -m unrelated1 -d "0 0"  # 2

hg merge --debug 1
hg ci -m merge1 -d "0 0" # 3

hg co -C 2
echo hello >> 1
hg ci -m unrelated2 -d "0 0" # 4

hg co -C 3
hg merge -y --debug 4

hg co -C 4
hg merge -y --debug 3