The main purpose of this commit is to ensure that exec callbacks are
registered at startup (or config reload), so that they have a chance to
run on the first update interval. Much of the code in exec.cc got
consolidated, making it easier to follow. Several checks for NULL
pointers should eliminate some obscure segfaults I noticed, as well.
During the refactoring, I implemented height and width arguments for
execbar and execgauge. The functionality was already there, but wasn't
being used. All this is accompanied by updates to the man page and
plenty of code comments.
Noone knows what it was supposed to do and removing it seems to fix sf.net #3411610 (and probably
a few others). If it turns out it was doing something useful, we will try to reintroduce it
without breaking other things.
After some minor rewrite of the top parser (which was in fact the only
real user of the obj->type field left since introduction of text object
callbacks), there is no need for the obj->type field anymore.
This is the more generic way, although I doubt this is really error
preventing. To me, it's not totally clear as to when
substitute_newlines() is forbidden and when not. Maybe someone (the
author?) can shed light on the internal algorithm of this feature.
This is tricky: there is no such thing as $text. In fact, everything
below TEXT in the conkyrc which is NOT a text object will become one of
type OBJ_text.
To make life easy, introduce a function obj_be_plain_text() converting a
given object to the given plain text.
The callback functions are:
print - to be called from generate_text_internal()
iftest - same as print for ifblock objects (triggers jumping)
barval - same as above for bar objects (returns current bar value)
gaugeval - same as above for gauge objects
graphval - same as above for graph objects
percentage - for percentage objects, returns actual percentage
free - called in free_text_objects()
Until conversion is complete, if the function pointer is NULL the old
lookup by type is being done.
Note that it's possible to assign both 'print' and 'iftest' callbacks.
In this case, the code simply ignores the 'iftest' callback, though this
could easily be changed (always calling DO_JUMP at last, of course) in
order to allow ifblock objects to print something in addition to jumping
somewhere (or not).
Murphy hit me again: in my naive attempt to fix the clash between
ifblocks and objects parsing text objects due to the double use of the
'sub' field, I overlooked this problem with reusing the 'special_data'
field. So here comes the real thing (TM), donating ifblocks their own
field for pointing to the jump target.
The problem with the original commit was that some session-managers set
stdin to /dev/null for the processes they launch, therefore the variable
wasn't very effective.
This commit change the variable conky_user_time to user_time.
This variable has a mandatory argument, a console identifier
(eg. tty7, pts/0, etc.).
Once called, this will list how long the user for the given console has been
logged in for.
This commit also allows multiple user_time to be specified for different
consoles, as well as correctly handle a conky restart.
The bug reporter asks if it is possible to add a variable giving the "current
user time" only, since the variable user_times reports the times for ALL
logged users.
AFAIK, the only info one can gather inside conky, is the login time for the
tty connected to conky's standard input.
This commit adds support for it (it should work on any posix compliant *nix).
Note that in coherence with the definition, the variable is called
conky_user_time (for a single user stand-alone machine used as a desktop
this would be the "current" user time).
This was really creepy stuff. Last updated in April, 2006 to work with
kernels > 2.6.12. I consider this "fobar" (fscking obsolete beyond all
recognition) and doubt anyone still uses this. If you do, blame me. :)
