[SCM] guix source archive branch, master, updated. v0.1-75-g82fe08e

[Ludovic Courtès]

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- Log -----------------------------------------------------------------
commit 82fe08ed207a17c51370dc90e965c15ee9db9235
Author: Ludovic Courtès <address@hidden>
Date:   Sun Jan 27 17:58:46 2013 +0100

    guix-package: Always use the next number for new generations.
    
    Suggested by Andreas Enge <address@hidden> at
    <http://lists.gnu.org/archive/html/bug-guix/2013-01/msg00325.html>.
    
    * guix-package.in (latest-profile-number): Remove.
      (switch-symlinks): New procedure.
      (roll-back)[switch-link]: Use it.
      (guix-package)[process-actions]: Always choose NUMBER + 1 for the new
      profile.  Use `switch-symlinks' instead of `symlink'.  Remove code to
      delete PROFILE when it exists since `switch-symlinks' has the same
      effect.
    * tests/guix-package.sh: Adjust existing `--roll-back' tests.
    * doc/guix.texi (Invoking guix-package): Document this `--roll-back'
      behavior.

commit d9307267b3b4a87391e33daacef162745f057c3d
Author: Ludovic Courtès <address@hidden>
Date:   Sun Jan 27 17:18:55 2013 +0100

    guix-package: When rolling back to nothingness, point to the empty profile.
    
    Suggested by Andreas Enge <address@hidden> at
    <http://lists.gnu.org/archive/html/bug-guix/2013-01/msg00316.html>.
    
    * guix-package.in (roll-back): Check whether PROFILE is valid using
      `file-exists?'.  When NUMBER is zero, just emit a notice.  When
      PREVIOUS-NUMBER is zero and PREVIOUS-PROFILE does not exist, build the
      empty profile, and link to it.
    * tests/guix-package.sh: Add tests.
    * doc/guix.texi (Invoking guix-package): Document the new behavior.

-----------------------------------------------------------------------

Summary of changes:
 doc/guix.texi         |    9 +++++++
 guix-package.in       |   65 +++++++++++++++++++++++++++----------------------
 tests/guix-package.sh |   45 ++++++++++++++++++++++-----------
 3 files changed, 75 insertions(+), 44 deletions(-)


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