view tests/test-clone-pull-corruption.t @ 28599:0e7a929754aa

chgserver: use global ui instead of repo ui for dispatch.request.ui

Before this patch, chgserver will use repo ui as dispatch.request.ui, while
req.ui is designed to be global ui without repo config.

Passing repo ui as dispatch.request.ui leads to repo.ui being incorrect, which
can lead to unwanted results. For example, if the repo config has [extensions],
it could affect which localrepository.featuresetupfuncs get executed and the
repo may have an incorrect list of supported requirements.

This patch changes _renewui to return both global ui and repo ui. The global
ui is passed to req.ui, and the repo ui is used to calculate confighash. It
will make chg pass test-largefiles-misc.t and test-requires.t, which are both
related to repo requirements.

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
  (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
  1 files, 2 changesets, 2 total revisions

  $ cd ..