rebase: keep original mq patch format (Issue1574)
Rebase now doesn't make assumptions about which format has been
used for a mq patch (git or normal).
Before finalizing a patch it keeps track of the original format,
by reading its header, and then restores the format when reimporting
it.
This way it also allows for having mixed styles.
Note: this version corrects a failure in the test
#!/bin/sh
hg init t
cd t
echo foo > a
hg add a
hg commit -m "1" -d "1000000 0"
hg verify
chmod -r .hg/store/data/a.i
hg verify 2>/dev/null || echo verify failed
chmod +r .hg/store/data/a.i
hg verify 2>/dev/null || echo verify failed
chmod -w .hg/store/data/a.i
echo barber > a
hg commit -m "2" -d "1000000 0" 2>/dev/null || echo commit failed
chmod -w .
hg diff --nodates
chmod +w .
chmod +w .hg/store/data/a.i
mkdir dir
touch dir/a
hg status
chmod -rx dir
hg status
# reenable perm to allow deletion
chmod +rx dir