mosesdecoder/jam-files/check-environment.jam

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# get stuff from environment variables if not set on the command line
# unless blocked explicitly
for local what in cmph irstlm
{
if ! [ option.get "with-$(what)" ] && ! [ option.get "no-$(what)" : : no ]
{
local where = [ os.environ "$(what:U)_ROOT" ] ;
if $(where)
{
echo "setting option with-$(what) from environment variable "
"$(what:U)_ROOT ." ;
option.set "with-$(what)" : $(where) ;
}
}
local where = [ option.get "with-$(what)" ] ;
}
# if --with-moses-regtest is specified without a directory
local regtest = [ option.get "with-moses-regtest" : no : yes ] ;
if $(regtest) = yes
{ # regtests requested but no path given
echo "Regression tests requested but no path given." ;
local $(where) = [ os.environ "MOSES_REGTEST_ROOT" ] ;
if ! $(where)
{
local HOME = [ os.environ "HOME" ] ;
if [ path.exists $(HOME)/moses-regression-tests ]
{
echo "Using ~/moses-regression-tests as the default." ;
option.set "with-moses-regtest" : "~/moses-regression-tests" ;
}
}
else
{
if [ path.exists $(where) ]
{
echo "Using $(where) from environment variable MOSES_REGTEST_ROOT."
option.set "with-regtest" : $(where) ;
}
}
}