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jghaines/aws-cloudformation.sh

Created January 25, 2017 00:07
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aws-cloudformation.sh
#!/bin/bash
# wrapper around "aws cloudformation" CLI to ignore certain pseudo-errors
# aws cloudformation deploy exits with 255 for "No changes to deploy" see: https://github.com/awslabs/serverless-application-model/issues/71
# this script exits with 0 for that case
STDERR=$(( aws cloudformation "$@" ) 2>&1)
ERROR_CODE=$?
echo ${STDERR} 1>&2
if [[ "${ERROR_CODE}" -eq "255" && "${STDERR}" =~ "No changes to deploy" ]]; then exit 0; fi
exit ${ERROR_CODE}
@khalidx
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khalidx commented May 24, 2017

Good stuff!

@MoenCertiK
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MoenCertiK commented Nov 17, 2017

nice!

@jeroneemou
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jeroneemou commented Oct 18, 2018

Can be solved with --no-fail-on-empty-changeset switch now 💪

@sapporo46
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sapporo46 commented Nov 1, 2018

@jeroneemou - This got me out of a hole, thanks!

@latheesan-k
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latheesan-k commented Feb 22, 2019

You can also add this to exit gracefully after the sam deploy ... command:

if [ "$?" -eq 255 ]
then
    echo "No changes to deploy."
    true
fi

@jhford-scout24
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jhford-scout24 commented Jul 9, 2019

the PIPESTATUS variable might be useful to you

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