# This scripts is a loop
# it should be run as
#
#    $ cd /path/to/pugs
#    $ nohup sh util/smoke_loop.sh
#
# and then be restarted if it dies

# This is what it does:
#    - svn up every 300 seconds, and if there's any change
#         - svn up parrot, if any change
#            - rebuild parrot
#        - regenerate docs
#            - p6bible
#            - haddock
#        - make smoke
#            - if make fails or no ./pugs is produced
#                - make clean, try again
#        - eval $AFTER_CMD

# it tries to parallelize non-competing processes to reduce the smoke loop latency



#### CONFIG VARS ####

# this is where you did 'svn co' for parrot
export PARROT_PATH=/usr/local/src/parrot

# this is run after each smoke
# upload it to smoke server
AFTER_CMD='perl ./util/smokeserv/smokeserv-client.pl html/index.html'

### Alternatively, rsync it to somewhere else
# AFTER_CMD='DEST=pasta:.htdocs/pugs_test_status; rsync -avz html/ $DEST/; rsync -avz docs/haddock/ $DEST/haddock/'

# this is the -j param to make and the PUGS_TEST_CONCURRENT value
PARALLEL_PROCS=3

#### CONFIG ENDS ####




export PUGS_EMBED=parrot

while true; do
    while [ `svn up | wc -l` -le 1 ]; do
        sleep 300;
    done

    rm -rf html
    mkdir html

    wait; # finish cleanup
    
    (
        # build and test pugs & parrot
        (
            # build parrot if we need to
            cd $PARROT_PATH
            if [ `svn up | wc -l` -gt 1 ]; then
                perl Configure.pl
                make -s # parrot's make doesn't like -j3
                # make test &
            fi
        )
    
        # try incremental build first
        # if it fails clean and try again
        for clean in 0 1; do
            # create the smoke report
            [ $clean = "1" ] && make clean
            perl Makefile.PL
            nice env PUGS_TESTS_CONCURRENT=$PARALLEL_PROCS make smoke -j$PARALLEL_PROCS -s || continue
            [ -x ./pugs ] || continue # in case make lied
            mv smoke.html html/index.html
            mv tests.yml html
            break
        done
    ) &

    (
        # generate docs
        (
            # update documentation
            (cd ../perl6_doc; svn up) &
            (cd ../Perl6-Bible; svn up) &
            wait; # wait for doc updates to finish
        ) >/dev/null
        
        # create the doc index
        perl util/catalog_tests.pl > /dev/null
        mv t_index/* html
        rmdir t_index
    ) &

    make haddock -s &

    wait # finish everthing

    eval $AFTER_CMD;
done