view tests/test-audit-path @ 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

hg init

echo % should fail
hg add .hg/00changelog.i

mkdir a
echo a > a/a
hg ci -Ama
ln -s a b
echo b > a/b

echo % should fail
hg add b/b

echo % should succeed
hg add b

echo % should still fail - maybe
hg add b/b

echo % unbundle tampered bundle
hg init target
cd target
hg unbundle $TESTDIR/tampered.hg

echo % attack .hg/test
hg manifest -r0
hg update -Cr0

echo % attack foo/.hg/test
hg manifest -r1
hg update -Cr1

echo % attack back/test where back symlinks to ..
hg manifest -r2
hg update -Cr2

echo % attack ../test
hg manifest -r3
hg update -Cr3

echo % attack /tmp/test
hg manifest -r4
hg update -Cr4 2>&1 | sed -e "s|/.*/test-audit-path|[HGTMP]/test-audit-path|"

exit 0