view tests/test-issue322 @ 4979:06abdaf78788

revlog: add a magic null revision to our index

We expand our index by one entry so that index[nullrev] points to a
unique entry, the null revision. This naturally eliminates numerous
extra tests in the performance-sensitive index access functions, most
of which are now trivial again.

Adding new entries is now done with insert(-1, e) rather than
append(e).

#!/bin/sh
# http://www.selenic.com/mercurial/bts/issue322

echo % file replaced with directory

hg init a
cd a
echo a > a
hg commit -Ama
rm a
mkdir a
echo a > a/a

echo % should fail - would corrupt dirstate
hg add a/a

cd ..

echo % directory replaced with file

hg init c
cd c
mkdir a
echo a > a/a
hg commit -Ama

rm -r a
echo a > a

echo % should fail - would corrupt dirstate
hg add a

cd ..

echo % directory replaced with file

hg init d
cd d
mkdir b
mkdir b/c
echo a > b/c/d
hg commit -Ama
rm -r b
echo a > b

echo % should fail - would corrupt dirstate
hg add b

exit 0