Disable automatic line endings conversion on windows The rationale behind this is that such conversion implies a particular situation in which all files in the repo are terminated by only LF. This is documented nowhere and it bit me sharply when I upgraded. Furthermore, it works on the assumption that a file containing no NULL characters are actually a text file. Therefore it cannot guarantee that no binary file will be harmed in the process. Currently, if a file already contains CRLF line endings when it is copied to the working dir from the repo, then the version in the working dir will be corrupted by an extra CR. I'm working on a patch that will turn this into a warning. But as a side effect, committing such a file back will strip it from its CR. In all case, unrequested data modification can occur under the feet of the user, which is bad(tm), ihmo.

#!/bin/sh
#
# Corrupt an hg repo with two pulls.
#

# create one repo with a long history
hg init source1
cd source1
touch foo
hg add foo
for i in 1 2 3 4 5 6 7 8 9 10; do
    echo $i >> foo
    hg ci -m $i
done
cd ..

# create one repo with a shorter history
hg clone -r 0 source1 source2
cd source2
echo a >> foo
hg ci -m a
cd ..

# create a third repo to pull both other repos into it
hg init corrupted
cd corrupted
# use a hook to make the second pull start while the first one is still running
echo '[hooks]' >> .hg/hgrc
echo 'prechangegroup = sleep 5' >> .hg/hgrc

# start a pull...
hg pull ../source1 &

# ... and start another pull before the first one has finished
sleep 1
hg pull ../source2 2>/dev/null

# see the result
wait
hg verify