docker-minecraft-server/start-finalSetupEnvVariables

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#!/bin/bash
. ${SCRIPTS:-/}start-utils
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: ${ENV_VARIABLE_PREFIX:=CFG_}
if isTrue "${REPLACE_ENV_VARIABLES}"; then
log "Replacing env variables in configs that match the prefix $ENV_VARIABLE_PREFIX ..."
# File excludes
fileExcludes=
for f in ${REPLACE_ENV_VARIABLES_EXCLUDES}; do
fileExcludes="${fileExcludes} -not -name $f"
done
# Directory excludes (recursive)
dirExcludes=$(join_by " -o -path " ${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS})
if [[ $dirExcludes ]]; then
dirExcludes=" -type d ( -path ${dirExcludes} ) -prune -o"
fi
isDebugging && echo "Using find file exclusions: $fileExcludes"
isDebugging && echo "Using find directory exclusions: $dirExcludes"
for name in $(compgen -v $ENV_VARIABLE_PREFIX); do
# check if name of env variable matches the prefix
# sanity check environment variables to avoid code injections
# Read content from file environment
if [[ $name = *"_FILE" ]]; then
value=$(<${!name})
name="${name%_FILE}"
else
value=${!name}
fi
log "Replacing $name with $value ..."
find /data/ \
$dirExcludes \
-type f \
\( -name "*.yml" -or -name "*.yaml" -or -name "*.txt" -or -name "*.cfg" \
-or -name "*.conf" -or -name "*.properties" \) \
$fileExcludes \
-exec sed -i 's#${'"$name"'}#'"$value"'#g' {} \;
done
fi
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exec ${SCRIPTS:-/}start-minecraftFinalSetup $@