view tests/test-merge9 @ 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

# test that we don't interrupt the merge session if
# a file-level merge failed

hg init repo
cd repo

echo foo > foo
echo a > bar
hg ci -Am 'add foo' -d '0 0'

hg mv foo baz
echo b >> bar
echo quux > quux1
hg ci -Am 'mv foo baz' -d '0 0'

hg up -qC 0
echo >> foo
echo c >> bar
echo quux > quux2
hg ci -Am 'change foo' -d '0 0'

# test with the rename on the remote side
HGMERGE=false hg merge

# test with the rename on the local side
hg up -C 1
HGMERGE=false hg merge

true