[augeas-devel] ANNOUNCE: Augeas 0.5.0

[David Lutterkort]

I am pleased to announce the release of Augeas 0.5.0, the best Augeas
release, ever (until 0.5.1, that is).

There are several big ticket items in this release:

      * It is now possible to control which files get loaded and what
        lenses are applied to them by passing the AUG_NO_LOAD flag to
        aug_init, manipulating /augeas/load and then calling aug_load
      * Path expressions can now contain variables, for example as a
        shorthand for long expressions. In augtool, you can do something
        like
                augtool> defvar localhost "/files/etc/hosts/*[ipaddr = '127.0.0.1']"
                augtool> match $localhost/alias
                ...
                augtool> set $localhost/alias[last()+1] myhost.example.com
        Similarly, aug_defnode provides a convenient way to find a node,
        create it if it does not exist yet, and store the resulting node
        in a variable
      * The error messages produced when parsing config files fail are a
        little less obtuse; in particular 'Short iteration' has been
        renamed, and error messages now contain the line number and
        column where the error happened

Detailed news:
  - Clean up interface for libfa; the interface is now considered stable
  - New aug_load API call; allows controlling which files to load by
    modifying /augeas/load and then calling aug_load; on startup, the
    transforms marked with autoload are reported under /augeas/load
  - New flag AUG_NO_LOAD for aug_init to keep it from loading files on
    startup; add --noload option to augtool
  - New API calls aug_defvar and aug_defnode to define variables for
    path expressions; exposed as 'defvar' and 'defnode' in augtool
  - Lenses distributed with Augeas are now installed in
    /usr/share/augeas/lenses/dist, which is searched after
    /usr/share/augeas/lenses, so that lenses installed by other packages
    take precedence
  - New program examples/fadot to draw various finite automata (Francis
    Giraldeau)
  - Report line number and character offset in the tree when parsing a
    file with a lens fails
  - Fix error in propagation of dirty flag, which could lead to only
    parts of a tree being saved when multiple files were modified
  - Flush files to disk before moving them
  - Fix a number of memory corruptions in the XPath evaluator
  - Several performance improvements in libfa
  - Lens changes/additions
    * Grub: process embedded comments for update-grub (Raphael Pinson)
    * Iptables: new lens for /etc/sysconfig/iptables
    * Krb5: new lens for /etc/krb5.conf
    * Limits: map dpmain as value of 'domain' node, not as label
              (Raphael Pinson)
    * Lokkit: new lens for /etc/sysconfig/system-config-firewall
    * Modprobe: new lens for /etc/modprobe.d/*
    * Sudoers: more finegrained parsing (ticket #48) (Raphael Pinson)

Tarball:          http://augeas.net/download/augeas-0.5.0.tar.gz
GPG signature[1]: http://augeas.net/download/augeas-0.5.0.tar.gz.sig

RPM's for Fedora and EPEL are making their way through the build systems
and will be available shortly from the usual repos.

David

[1] To verify the signature, first download both the .sig file and the
corresponding tarball. Then, run a command like this:

  gpg --verify augeas-0.5.0.tar.gz.sig

If that command fails because you don't have the required public key,
then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys FC6E8A22

and rerun the `gpg --verify' command.