#!/bin/bash
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# Hacky workaround for https://github.com/gradle/gradle/issues/3777
# There is currently no configurable timeout, so we retry builds jenkins when we can't get a lock on the zinc compiler cache
# Hopefully we can remove this in the future, but this will save us from having to manually rebuild for the time being.
# Example:
# [2021-10-19T17:25:07.234Z] * What went wrong:
# [2021-10-19T17:25:07.234Z] Execution failed for task ':streams:streams-scala:compileScala'.
# [2021-10-19T17:25:07.234Z] > Timeout waiting to lock zinc-1.3.5_2.13.6_8 compiler cache (/home/jenkins/.gradle/caches/7.0.2/zinc-1.3.5_2.13.6_8). It is currently in use by another Gradle instance.
# [2021-10-19T17:25:07.234Z]   Owner PID: 3999
# [2021-10-19T17:25:07.234Z]   Our PID: 3973
# [2021-10-19T17:25:07.234Z]   Owner Operation: 
# [2021-10-19T17:25:07.234Z]   Our operation: 
# [2021-10-19T17:25:07.234Z]   Lock file: /home/jenkins/.gradle/caches/7.0.2/zinc-1.3.5_2.13.6_8/zinc-1.3.5_2.13.6_8.lock

set -uf -o pipefail

retryable=1
while [[ "$retryable" != 0 ]]; do
	retryable=0
	rm -f buildoutput.log

	"$@" 2>&1 | tee buildoutput.log
	commandReturnCode=$?

	if [ $commandReturnCode -ne 0 ]; then
		if grep "Timeout waiting to lock zinc" buildoutput.log; then
			retryable=1
			echo 'Retrying due to zinc lock timeout'
			continue
		else
			exit $commandReturnCode
		fi
	fi
done