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fix: grep pattern fixed to remove line comments #311

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fix: grep pattern fixed to remove line comments #311

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e1d6fb6
fix: Don't escape # in grep pattern
langfingaz Feb 24, 2023
58fc649
fix: Remove line comments
langfingaz Feb 24, 2023
709579b
refactor: Add quotes; remove subshell; add comments
langfingaz Mar 2, 2023
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18 changes: 12 additions & 6 deletions lib/env.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -42,13 +42,19 @@ function env_check(){
# loads environment vars from a stream (such as a file)
# example: env_load_stream < .env
function env_load_stream(){
[[ -n $DATA_DIR ]] && printf "DATA_DIR is already set to '$DATA_DIR' - this may cause the DATA_DIR specified in the .env to be ignored\n"
[[ -n $DATA_DIR ]] && printf 'DATA_DIR is already set to "%s" - this may cause the DATA_DIR specified in the .env to be ignored\n' "$DATA_DIR"
# split line into $key and $value by first occurrence of =
while IFS='=' read -r key value; do
([ -z $key ] || [ -z $value ]) && printf 'Invalid environment var "%s=%s"\n' $key $value && exit 1
if [ -z ${!key} ]; then
# assert that the line has characters before and after = by checking if $key or $value is empty
if [ -z "$key" ] || [ -z "$value" ]; then
printf 'Invalid environment var "%s=%s"\n' "$key" "$value"
exit 1
fi
if [ -z "${!key}" ]; then
# this wil fail if $key starts with whitespace characters
export "${key}=${value}"
elif $ENV_DISPLAY_WARNINGS; then
printf '[warn] skip setting environment var "%s=%s", already set "%s=%s"\n' $key $value $key ${!key}
printf '[warn] skip setting environment var "%s=%s", already set "%s=%s"\n' "$key" "$value" "$key" "${!key}"
fi
done
}
Expand All @@ -57,8 +63,8 @@ function env_load_stream(){
# export LC_ALL=en_US.UTF-8

# load DATA_DIR and other vars from docker-compose .env file
# note: strips comments and empty lines
[ -f .env ] && env_load_stream < <(grep -v '^$\|^\s*$\#' .env)
# note: strips line comments ('\s*#') and blank lines ('^$')
[ -f .env ] && env_load_stream < <(grep -v '^$\|^\s*#' .env)

# use the default compose file unless one was specified
# if [ -z "${COMPOSE_FILE}" ]; then
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