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#!/bin/bash
# Set the SKIP_JOB environment variable if this job is supposed to only run
# when submodules are updated and they were not. The following time consuming
# tasks will be skipped when the environment variable is present.
set -euo pipefail
IFS=$'\n\t'
source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
if [[ -z "${CI_ONLY_WHEN_SUBMODULES_CHANGED+x}" ]]; then
echo "Executing the job since there is no skip rule in effect"
elif git diff HEAD^ | grep --quiet "^index .* 160000"; then
# Submodules pseudo-files inside git have the 160000 permissions, so when
# those files are present in the diff a submodule was updated.
echo "Executing the job since submodules are updated"
else
echo "Not executing this job since no submodules were updated"
ciCommandSetEnv SKIP_JOB 1
fi
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