scripts/guardian-set-init.sh: make script run on darwin
The version of 'sed' shipped on macOS needs a little more handholding than gnu sed commit-id:324ce8b7
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@ -25,7 +25,13 @@ function upsert_env_file {
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# replace the value if it exists, else, append it to the file
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if [[ -f $file ]] && grep -q "^$key=" $file; then
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# file has the key, update it:
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sed -i "/^$key=/s/=.*/=$new_value/" $file
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if [[ "$OSTYPE" == "darwin"* ]]; then
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# on macOS's sed, the -i flag needs the '' argument to not create
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# backup files
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sed -i '' -e "/^$key=/s/=.*/=$new_value/" $file
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else
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sed -i -e "/^$key=/s/=.*/=$new_value/" $file
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fi
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else
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# file does not have the key, add it:
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echo "$key=$new_value" >> $file
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