This fixes a problem with package names from inherits showing up

Signed-off-by: Saul Wold <sgw@linux.intel.com>

Konsole 2.x (from KDE 4.x) does not work as devshell - it does not pass
the environment or current working directory through among other issues,
so do a version check and disable it if it is found (skipping to the
next available terminal application.)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

- Name the screen session 'devshell', to avoid confusion if running bitbake
  itself under a screen session.
- Display a warning message when spawning screen, so it's clear to the user
  that screen has been run (otherwise do_devshell just appears to hang).

Signed-off-by: Chris Larson <chris_larson@mentor.com>

In the new implementation, each known terminal is defined as a class in
oe.terminal, as a subclass of bb.process.Popen.  terminal.bbclass wraps this
functionality, providing the metadata pieces.  It obeys the OE_TERMINAL
variable, which is a 'choice' typed variable.  This variable may be 'auto',
'none', or any of the names of the defined terminals.

When using 'auto', or requesting an unsupported terminal, we attempt to spawn
them in priority order until we get one that's available on this system (and
in the case of the X terminals, has DISPLAY defined).  The 'none' value is
used when we're doing things like automated builds, and want to ensure that no
terminal is *ever* spawned, under any circumstances.

Current available terminals:

    gnome
    konsole
    xterm
    rxvt
    screen

Signed-off-by: Chris Larson <chris_larson@mentor.com>

prune_suffix() also needs be aware of MLPREFIX when changing PN for
use in BPN.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Currently oe.utils.contains(X, "A", true, false) will return true for substring matches,
e.g. if X = "ABC". This is not what most users expect from the function.

In the common OE use of this function there is the case of "touchscreen" and "screen" being
used as independent variables. Whilst it could be argued there isn't a problem in that
specific case (touchscreens are usually on screens), there is no substring usage of this
function is OE-Core so this patch changes the behaviour to match only full strings.

It also fixes a bug where duplicate entries would confuse multiple matches, e.g.
contains(X, ["A", "B"], ...) would match X = "A A" which is clearly wrong.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

This adds a ClassRegistry utility metaclass, as maintaining a class registry
is a fairly common thing to do.

Signed-off-by: Chris Larson <chris_larson@mentor.com>

If both VAR and VAR_foo are in subd, we need to ensure VAR_foo gets
returned. Currently the code would work randomly. The only current
user is the rpm packaging backend.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Signed-off-by: Chris Larson <chris_larson@mentor.com>

Signed-off-by: Chris Larson <chris_larson@mentor.com>