view tests/test-revlog-group-emptyiter @ 11541:ab9fa7a85dd9 stable

filelog: cmp: don't read data if hashes are identical (issue2273)

filelog.renamed() is an expensive call as it reads the filelog if p1 == nullid.
It's more efficient to first compute the hash, and to bail early if
the computed hash is the same as the stored nodeid.

'samehashes' variable is not strictly necessary, but helps for comprehension.

#! /bin/sh

# issue 1678

echo "# -- setting up base repo"
hg init a
cd a
touch a
hg ci -Am a
cd ..

echo "# -- cloning base repo"
hg clone a b
cd b

echo "# -- setting up cset to push"
hg up null
touch a
hg ci -Am b # different msg so we get a clog new entry

echo "# -- pushing"
hg push -f ../a