c4c8f0a099
Option --lts builds the latest LTS release of components SIMGEAR, FGFS
and DATA. The presence of option -s or --lts affects the version or
branch checked out for each component; however, passing none of these
options doesn't imply that development versions will be used for
everything---this selects development versions for FlightGear and
possibly closely-related software, but for the rest, we aim at something
reasonably usable, as in "current release".
For each component, the default version selected depending on whether
-s, --lts or none of these was given, can be overridden using
'--component-branch COMPONENT=BRANCH' (without the quotes). For
instance:
download_and_compile.sh --lts \
--component-branch OSG=OpenSceneGraph-3.6 SIMGEAR FGFS DATA OSG
will build the latest LTS release of FlightGear against the
OpenSceneGraph-3.6 branch of OpenSceneGraph. Option --component-branch
may be used several times and always overrides the defaults determined
by the presence or absence of -s or -lts. Thus, the relative order of
-s, --lts and --component-branch options does not matter.
This commit also adds text to the standard output and log file that
tells users:
- which "suite" they have selected (default=next, -s or --lts) and
what this implies;
- which branch will be checked out for each component (i.e., after
the overrides from all --component-branch options passed have been
applied).
It is nonsensical to provide both -s and --lts in the same invocation,
but the last one wins.