view tests/test-merge-default @ 5810:124577de40a7

context: preserve changeset in filectx if we have one

If we know original changeset we are working with - try hard to
preserve it. Fallback to filelog.linkrev() only if we have no way
to get original changeset, since linkrev() may point to other
changeset.

#!/bin/sh

hg init
echo a > a
hg commit -A -ma

echo a >> a
hg commit -mb

echo a >> a
hg commit -mc

hg up 1
echo a >> a
hg commit -md

hg up 1
echo a >> a
hg commit -me

hg up 1
echo % should fail because not at a head
hg merge

hg up
echo % should fail because \> 2 heads
hg merge

echo % should succeed
hg merge 2
hg commit -mm1

echo % should succeed - 2 heads
hg merge
hg commit -mm2

echo % should fail because at tip
hg merge

hg up 0
echo % should fail because 1 head
hg merge

true