travis.sh

#!/bin/bash
# Abort on Error

## from http://stackoverflow.com/questions/26082444/how-to-work-around-travis-cis-4mb-output-limit
set -e

export PING_SLEEP=30s
export WORKDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
export BUILD_OUTPUT=$WORKDIR/build.out

touch $BUILD_OUTPUT

dump_output() {
    echo Tailing the last 500 lines of output:
    tail -500 $BUILD_OUTPUT  
}
error_handler() {
    echo ERROR: An error was encountered with the build.
    dump_output
    kill $PING_LOOP_PID
    exit 1
}
# If an error occurs, run our error handler to output a tail of the build
trap 'error_handler' ERR

# Set up a repeating loop to send some output to Travis.

bash -c "while true; do echo \$(date) - building ...; sleep $PING_SLEEP; done" &
PING_LOOP_PID=$!

# My build is using bash script, but you could build anything with this, E.g.
# your_build_command_1 >> $BUILD_OUTPUT 2>&1
# your_build_command_2 >> $BUILD_OUTPUT 2>&1
if [ ! -z "$1" ]; then
    if [ "$1" = "core" ]; then
        ./2-build-production.sh etl >> $BUILD_OUTPUT 2>&1
        ./2-build-production.sh core >> $BUILD_OUTPUT 2>&1
    elif [ "$1" = "distcheck" ]; then
        ./autobuild/synfigstudio-release.sh >> $BUILD_OUTPUT 2>&1
    fi
else
./2-build-production.sh >> $BUILD_OUTPUT 2>&1
fi

# The build finished without returning an error so dump a tail of the output
dump_output

# nicely terminate the ping output loop
kill $PING_LOOP_PID