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Allow users to set additional configuration options #8

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Allow users to set additional configuration options #8

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43 changes: 40 additions & 3 deletions docker-entrypoint.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -56,12 +56,28 @@ if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROT
EOPHP
fi

# modify an existing configuration value
set_config() {
key="$1"
value="$2"
php_escaped_value="$(php -r 'var_export($argv[1]);' "$value")"
sed_escaped_value="$(echo "$php_escaped_value" | sed 's/[\/&]/\\&/g')"
sed -ri "s/((['\"])$key\2\s*,\s*)(['\"]).*\3/\1$sed_escaped_value/" wp-config.php
if [[ "$2" =~ ^(true|false|[0-9]+)$ ]]; then
# these don't need escaping
sed_escaped_value=$2
else
php_escaped_value="$(php -r 'var_export($argv[1]);' "$value")"
sed_escaped_value="$(echo "$php_escaped_value" | sed 's/[\/&]/\\&/g')"
fi
sed -ri "s/((['\"])$key\2\s*,\s*)((['\"]).*\4|true|false|[0-9]+)/\1$sed_escaped_value/" wp-config.php
}

# delete a configuration value
del_config() {
sed -ri "/((['\"])$1\2\s*,\s*)((['\"]).*\4|true|false|[0-9]+)/d" wp-config.php
}

# create a blank configuation value (for use in conjunction with above)
blank_config() {
sed -ir "/Happy blogging/idefine('$1', '');" wp-config.php
}

WORDPRESS_DB_HOST="${MYSQL_PORT_3306_TCP#tcp://}"
Expand Down Expand Up @@ -93,6 +109,27 @@ for unique in "${UNIQUES[@]}"; do
fi
done

# allow any of these wordpress configuration opions to be specified via
# environment variables with a "WORDPRESS_" prefix (ie, "WORDPRESS_AUTH_KEY")
# if they are not set they will be returned to default by removal of the option
# i.e. options that must be present cannot be part of this section
CONFIG_OPTS=(
WP_DEBUG
WP_DEBUG_DISPLAY
SCRIPT_DEBUG
SAVEQUERIES
WP_ENV
)
for config_opt in "${CONFIG_OPTS[@]}"; do
eval config_value=\$WORDPRESS_$config_opt
del_config "$config_opt"
if [ "$config_value" ]; then
blank_config "$config_opt"
set_config "$config_opt" "$config_value"
fi
done


TERM=dumb php -- "$WORDPRESS_DB_HOST" "$WORDPRESS_DB_USER" "$WORDPRESS_DB_PASSWORD" "$WORDPRESS_DB_NAME" <<'EOPHP'
<?php
// database might not exist, so let's try creating it (just to be safe)
Expand Down