tests/test-archive-symlinks.t

uncommit: leave empty commit if all files are uncommitted

We had instructions for our internal users to add copy information
after commit like this:

  hg uncommit <srcfile> <dstfile>
  hg cp --after <srcfile> <dstfile>
  hg amend

That usually works, but if the rename was the only change in that
commit, then the commit would get pruned. It's easy to fix the recipe:
just pass the --keep option. However, it seems too subtle, so I think
this is an indication that the commit should not be pruned if any
patterns were given.

Differential Revision: https://phab.mercurial-scm.org/D2862

#require symlink

  $ origdir=`pwd`

  $ hg init repo
  $ cd repo
  $ ln -s nothing dangling

avoid tar warnings about old timestamp

  $ hg ci -d '2000-01-01 00:00:00 +0000' -qAm 'add symlink'

  $ hg archive -t files ../archive
  $ hg archive -t tar -p tar ../archive.tar
  $ hg archive -t zip -p zip ../archive.zip

files

  $ cd "$origdir"
  $ cd archive
  $ readlink.py dangling
  dangling -> nothing

tar

  $ cd "$origdir"
  $ tar xf archive.tar
  $ cd tar
  $ readlink.py dangling
  dangling -> nothing

#if unziplinks
zip

  $ cd "$origdir"
  $ unzip archive.zip > /dev/null 2>&1
  $ cd zip
  $ readlink.py dangling
  dangling -> nothing
#endif

  $ cd ..