Use apt's CommandLine parser

Previously aptitude was using it's own command line
parser implemented on top of getopt.  Replacing this
with the standard apt class means there are no longer
subtle quirks with our parser (such as "-qq" not
being valid, when it is fine for other apt programs).

The parser is closely tied to the Configuration, and
reads options directly in to the global apt config.

Some options were tracked independently of the global
config; this change is the first part rectifying that
situation.  The goal is to keep all program options,
configuration state, etc. in the global config rather
than passing state variables between functions.  Many
options which previously did not have an associated
configuration item now do; some remain undocumented
for now as they are transitional.

* handle "-qq" like other apt-utils
* properly process all -o command line options (Closes: #587671)
* unknown command line options trigger an error (Closes: #434502)
* --add-user-tag-to, --remove-user-tag-from are working;
  no bug reports suggests that noone has noticed they
  were broken

New aliases for some command-line options:
  --yes, for --assume-yes (apt-get)
  --default-release, for --target-release (apt-utils)
  --install-on-startup, for -i
  --update-on-startup, for -u

New configuration item:
  Aptitude::CmdLine::Sorting, equivalent to --sort

Other new configuration items are for internal use only
at this point.

Closes: #587671
Closes: #434502

1 files changed, 11 insertions, 0 deletions

diff --git a/src/cmdline/cmdline_util.h b/src/cmdline/cmdline_util.h
index e11722a4..2e10b005 100644
--- a/src/cmdline/cmdline_util.h
+++ b/src/cmdline/cmdline_util.h
@@ -222,6 +222,17 @@ namespace aptitude
       get_pattern() const { return pattern; }
     };
 
+    /** \brief Read user-tag application requests from a configuration tree.
+     *
+     *  \param user_tags The vector to which the applications will be added.
+     *  \param config_item Name of the configuration item tree to read from.
+     *  \param is_add \b true if these are add requests.
+     *  \param implicit \b true if these are implicit requests.
+     */
+    bool read_user_tag_applications(std::vector<tag_application> &user_tags,
+                                    const char *config_item,
+                                    const bool is_add, const bool implicit);
+
     /** \brief Apply explicit and implicit user-tags to packages.
      *
      *  Explicit tags are applied where their associated pattern holds;