Fix functional tests regarding the changes that moves
options from the main application to the test runner (avocado run).
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Move plugins journal, json, xunit and vm inside the test runner
subcommand, now the command line options belongs to the runner,
instead of the main application.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Export the test runner parser back to the main parser,
so you can use `parser.runner` to extend it.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Add priority when loading plugins (both built-in or external).
The lowest the priority (0 by default) then earliest the plugin will
be loaded.

In the current implementation, only the runner plugin has
priority 0 and the other plug-ins are all defined as priority 3.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Trivial fixes sprint12

In avocado, we use 'less' for a paginator. When one presses
'q' in the paginator, an IOError is raised (the subprocess
opened with os.popen has just quit), so let's introduce a
Paginator class, that can handle cleanly 'q' without asking
API users to handle the exception themselves.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Make it have the same meaning as with the previous
multiplex system (9 variants, loop and sync parameters
with short, medium and long variants).
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Make the multiplexer plugin to properly produce the
environment relative to each variant. Before, we
had an exception when calling option -c.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.docs: Update documentation regarding argument parsing.

Update documentation regarding the last update on argument parsing.
Like option --silent goes to run subcommand and there's no
need to quote for multiples test names.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

avocado.test: Use job.unique_id to build temporary path.

if job.unique_id is available in test, use this information
to build the temporary path used in attribute workdir.

The template format is $TMP/job-<unique_id>-<random>/.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

avocado.cli.parser: New way to parsing arguments.

The parser for the subcommand run now accepts one or more
tests ids (paths / aliases) and there isn't a need to quote the list
as a string.

Example:

* Before: avocado 'sleeptest failtest /usr/bin/true'
* Now: avocado sleeptest failtest /usr/bin/true

So it's now possible to run avocado like `avocado run *.py`.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Remove generic option --silent and turn it to subcommand run.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

On Plugin.configure(), remove app_parser and cmd_parser arguments
and now use parse, an instance of avocado.cli.parser.Parser().
The application (old app_parser) is available with parser.application.
The subcommands (old cmd_parser) is available with parser.subcommands.

Now the runner plugins (like sysinfo, datadir, run, etc.)
make use of the standard method run() to execute the logic.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Modify how we parse command line arguments,
by removing the logic that was inside avocado.cli.app into
this new module.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Debian updates

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.core.tree: Add copyright note

Attributing copyright to Jaime Huerta-Cepas <jhcepas@gmail.com>,
author of the original tree node structure, that we drew inspiration
from and used part of the code (tree drawing).

CC: Jaime Huerta-Cepas <jhcepas@gmail.com>
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Refactory plugins

Build devhelp files for Avocado

Rename `arc` to `avocado`.
Plus:  change instructions for devhelp.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Use `Avocado` to project name.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Bump to the latest version, released after sprint 11.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado.process: Make processes to fail when interrupted by user

So that the avocado command does produce its
intended output. Fixes a small bug introduced with
the simplification of the json and xunit plugins.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Some tests, such as the trinity test, may pass even
when interrupted (Ctrl+C), and that is counter intuitive
with the expected semantic of Ctrl+C. So, even if a command
passed, let's raise a CmdError exception if interrupted.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

Signed-off-by: NRuda Moura <rmoura@redhat.com>

Add new "hello world!" plugin, to perform functional tests
on external plugins.

Created class ExternalPluginsTest() to move all
functional tests regarding external plugins there.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Log a message when loading external plugins discovers that
there is no plugin inside a module.

Plus: cosmetic formatting.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

Signed-off-by: NRuda Moura <rmoura@redhat.com>

* Add optional parameters 'name' and 'enabled' to the constructor.
  You can just use the class variables name and enabled.
  Change plugin variable to noname and enabled variable to False.

* Include new attribute 'description' to include short documentation
  about the plugin. By default it uses the docstring of the class
  or fall backs to a message that there is no documentation.

* Add repr() facility.
Signed-off-by: NRuda Moura <rmoura@redhat.com>

avocado.core.tree: Add note about ETE2 and copyright clarification