The environment variable FUEGO_LOGLEVELS is used to control message output
(including debug messages) during execution of a Fuego test.

= Introduction =
The FUEGO_LOGLEVELS variable specifies a string containing a list of areas and
log level combinations, separated by commas.  The area and loglevel are
joined by a colon.

Here is an example:
{{{#!YellowBox
export FUEGO_LOGLEVELS="deploy:verbose,criteria:debug"
}}}

Note that a sample of this line is provided in the Jenkins
job for every test.  It is, by default, commented out. However, you can easily
turn on FUEGO_LOGLEVELS by uncommenting this line.  You can customize
the log level to use for different execution areas by changing the value of the
variable.

To change this line in a Jenkins job, select the job in the Jenkins interface,
then select "Configure", and edit the line in "Execute Shell - Command"
box, in the "Build" section of the job configuration.

If the FUEGO_LOGLEVELS variable is not set, the default logging level for
all areas of test execution is "info".

= log levels =
There are 5 logging levels available, and messages from Fuego are
categorized into these 5 different levels:
 * error
 * warning
 * info
 * verbose
 * debug

Specifying a particular level means that all messages above that level
will be output.  Messages at level 'error' are always shown, no matter
what log level is specified.


= execution areas =
Area names correspond to phases, and to sub-phases of the test execution stepx.
The following area names are supported:
 * pre_test
 * pre_check
 * build
 * makepkg
 * deploy
 * snapshot
 * run
 * post_test
 * processing
 * parser
 * criteria
 * charting

= output functions =
With this feature, 5 new functions have been added to the Fuego core.
These functions may be used in your test shell script (fuego_test.sh), so
that your output may be managed the same way that core output is managed.

The following functions are available:
 * dprint - print output if the message level is 'debug'.
 * vprint - print output if the message level is 'debug' or 'verbose'.
 * iprint - print output if the message level is 'debug', verbose', or 'info'.
 * wprint - print output if the message level is 'debug', 'verbose', 'info', or warning'.
 * eprint - print output always (message level 'error')

== deprecated FUEGO_DEBUG ==
FUEGO_LOGLEVELS replaces the earlier [[FUEGO_DEBUG]] variable for controlling
debug output of Fuego.  However, as of Fuego version 1.4, both FUEGO_DEBUG is still supported for backwards compatibility.