view tests/test-confused-revert @ 9827:4fe9ca519637

mdiff: fix diff -b/B/w on mixed whitespace hunks (issue127)

Previous code was computing hunks then checking if these hunks could be ignored
when taking whitespace/blank-lines options in accounts. This approach is simple
but fails with hunks containing both whitespace and non-whitespace changes, the
whole hunk is emitted while it can be mostly made of whitespace. The new
version normalize the whitespaces before hunk generation, and test for
blank-lines afterwards.

#!/bin/sh

hg init
echo foo > a
hg add a
hg commit -m "1" -d "1000000 0"

echo bar > b
hg add b
hg remove a

echo "%%% should show a removed and b added"
hg status

echo "reverting..."
hg revert --all

echo "%%% should show b unknown and a back to normal"
hg status

rm b

hg co -C 0
echo foo-a > a
hg commit -m "2a" -d "1000000 0"

hg co -C 0
echo foo-b > a
hg commit -m "2b" -d "1000000 0"

HGMERGE=true hg merge 1

echo "%%% should show foo-b"
cat a

echo bar > b
hg add b
rm a
hg remove a

echo "%%% should show a removed and b added"
hg status

echo "%%% revert should fail"
hg revert --all

echo "%%% revert should be ok now"
hg revert -r2 --all

echo "%%% should show b unknown and a marked modified (merged)"
hg status

echo "%%% should show foo-b"
cat a