view tests/test-journal-exists.t @ 37552:8b8a845c85fc

httppeer: perform capabilities request in makepeer()

Previously, we constructed an httppeer then always ran _fetchcaps()
to issue the capabilities command.

We want to issue the capabilities command before constructing a
peer instance so we can construct an appropriate peer instance
depending on the capabilities result.

With the code for making and sending requests moved out of httppeer,
it is now possible to send command requests without an httppeer.

This commit creates a new function for making the capabilities
request and calls it as part of makepeer().

This code should be functionality equivalent to what existed before.

Differential Revision: https://phab.mercurial-scm.org/D3237

  $ hg init
  $ echo a > a
  $ hg ci -Am0
  adding a

  $ hg -q clone . foo

  $ touch .hg/store/journal

  $ echo foo > a
  $ hg ci -Am0
  abort: abandoned transaction found!
  (run 'hg recover' to clean up transaction)
  [255]

  $ hg recover
  rolling back interrupted transaction
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions

Check that zero-size journals are correctly aborted:

#if unix-permissions no-root
  $ hg bundle -qa repo.hg
  $ chmod -w foo/.hg/store/00changelog.i

  $ hg -R foo unbundle repo.hg
  adding changesets
  abort: Permission denied: $TESTTMP/foo/.hg/store/.00changelog.i-* (glob)
  [255]

  $ if test -f foo/.hg/store/journal; then echo 'journal exists :-('; fi
#endif