44 lines
1.2 KiB
Bash
44 lines
1.2 KiB
Bash
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#
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# Helper functions to run a chatty, long task in the background,
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# redirecting the output to file and keep travis happy by regularly
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# writing to the log.
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#
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# This is to workaround the travis log length limit of 4MB
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# Solution from http://stackoverflow.com/questions/26082444/how-to-work-around-travis-cis-4mb-output-limit/26082445#26082445
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#
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# Source this file into the shell script, that needs it.
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#
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# expected variables
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# Name | Example Value
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# PING_SLEEP | 30s
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# BUILD_OUTPUT | /tmp/build-step-logfile.out
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# PING_PID_FILE | /tmp/build-step-ping.pid
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touch $BUILD_OUTPUT
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dump_output() {
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echo Tailing the last 100 lines of output:
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tail -100 $BUILD_OUTPUT
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}
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kill_ping() {
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if [ -e $PING_PID_FILE ]; then
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PING_LOOP_PID=$(cat $PING_PID_FILE)
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kill $PING_LOOP_PID
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rm $PING_PID_FILE
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fi
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}
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error_handler() {
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kill_ping
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echo ERROR: An error was encountered with the build.
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dump_output
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exit 1
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}
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# If an error occurs, run our error handler to output a tail of the build
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trap 'error_handler' ERR
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# Set up a repeating loop to send some output to Travis.
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bash -c "while true; do echo \$(date) - building ...; sleep $PING_SLEEP; done" &
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PING_LOOP_PID=$!
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echo "$PING_LOOP_PID" > $PING_PID_FILE
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