view tests/test-diffstat @ 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 repo
cd repo
i=0; while [ "$i" -lt 213 ]; do echo a >> a; i=`expr $i + 1`; done
hg add a

echo '% wide diffstat'
hg diff --stat

echo '% diffstat width'
COLUMNS=24 hg diff --config ui.interactive=true --stat

hg ci -m adda

cat >> a <<EOF
a
a
a
EOF

echo '% narrow diffstat'
hg diff --stat

hg ci -m appenda

printf '\0' > b
hg add b

echo '% binary diffstat'
hg diff --stat

echo '% binary git diffstat'
hg diff --stat --git