view tests/test-imerge @ 5137:2be225ea5722

extdiff: do single file diffs from the wc with no copy

Extdiff was always making a temporary directory and copying files even when not required. This change makes extdiff avoid the copy when diffing a single file that lives in the wc. This lets external diff tools edit the working copy file directly. It also lets other extensions resuse the functions in extdiff and get in-place diffs.

#!/bin/sh

echo "[extensions]" >> $HGRCPATH
echo "imerge=" >> $HGRCPATH
HGMERGE=true
export HGMERGE

hg init base
cd base

echo foo > foo
echo bar > bar
hg ci -Am0 -d '0 0'

hg mv foo foo2
echo foo >> foo2
hg ci -m1 -d '1 0'

hg up -C 0
echo bar >> foo
echo bar >> bar
hg ci -m2 -d '2 0'

echo % start imerge
hg imerge

cat foo2
cat bar

echo % status -v
hg -v imerge st

echo % next
hg imerge next

echo % merge next
hg --traceback imerge

echo % unresolve
hg imerge unres foo

echo % merge foo
hg imerge merge foo

echo % save
echo foo > foo2
hg imerge save ../savedmerge

echo % load
hg up -C 0
hg imerge --traceback load ../savedmerge
cat foo2

hg ci -m'merged' -d '3 0'
hg tip -v

echo % nothing to merge
hg imerge

exit 0