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find and use appropriate shasum command #19

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find and use appropriate shasum command #19

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def4892
find and use appropriate shasum command
Jun 7, 2023
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Jun 8, 2023
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14 changes: 13 additions & 1 deletion download-launch-agent.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,18 @@ fi
echo "Setting up CircleCI Runner directories"
sudo mkdir -p /var/opt/circleci /opt/circleci

# Find appropriate hash cmd
if hash shasum 2>/dev/null; then
echo "found shasum command"
alias SHACMD="shasum -a256"
elif hash sha256sum 2>/dev/null; then
echo "found sha256sum command"
alias SHACMD="sha256sum"
else
echo "shasum command not found"
exit 1
fi

# Downloading launch agent
echo "Using CircleCI Launch Agent version ${agent_version}"
echo "Downloading and verifying CircleCI Launch Agent Binary"
Expand All @@ -24,5 +36,5 @@ curl --compressed -L "${base_url}/${agent_version}/${file}" -o "${file}"

# Verifying download
echo "Verifying CircleCI Launch Agent download"
grep "${file}" checksums.txt | sha256sum --check && chmod +x "${file}"
grep "${file}" checksums.txt | SHACMD --check && chmod +x "${file}"
sudo cp "${file}" "/opt/circleci/circleci-launch-agent" || echo "Invalid checksum for CircleCI Launch Agent, please try download again"