Corrupt an hg repo with a pull started during an aborted commit

Create two repos, so that one of them can pull from the other one.

  $ hg init source

  $ cd source

  $ touch foo

  $ hg add foo

  $ hg ci -m 'add foo'

  $ hg clone . ../corrupted

  updating to branch default

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ echo >> foo

  $ hg ci -m 'change foo'

Add a hook to wait 5 seconds and then abort the commit

  $ cd ../corrupted

  $ echo "[hooks]" >> .hg/hgrc

  $ echo 'pretxncommit = sh -c "sleep 5; exit 1"' >> .hg/hgrc

start a commit...

  $ touch bar

  $ hg add bar

  $ hg ci -m 'add bar' &

... and start a pull while the commit is still running

  $ sleep 1

  $ hg pull ../source 2>/dev/null

  pulling from ../source

  transaction abort!

  rollback completed

  abort: pretxncommit hook exited with status 1

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  new changesets 52998019f625

  (run 'hg update' to get a working copy)

see what happened

  $ wait

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checked 2 changesets with 2 changes to 1 files

  $ cd ..