From d0b4bd2dc156d0153edcc4281ba2cf021be48cd4 Mon Sep 17 00:00:00 2001
From: ttionya <git@ttionya.com>
Date: Mon, 1 Mar 2021 22:02:09 +0800
Subject: [PATCH] feat: use -n for readability

---
 scripts/includes.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/scripts/includes.sh b/scripts/includes.sh
index 1ef5f03..7ca345a 100644
--- a/scripts/includes.sh
+++ b/scripts/includes.sh
@@ -91,7 +91,7 @@ function send_mail_content() {
 # Outputs:
 #     variables with prefix 'DOTENV_'
 # Reference:
-#     https://gist.github.com/judy2k/7656bfe3b322d669ef75364a46327836
+#     https://gist.github.com/judy2k/7656bfe3b322d669ef75364a46327836#gistcomment-3632918
 ########################################
 function export_env_file() {
     if [[ -f "${ENV_FILE}" ]]; then
@@ -120,13 +120,13 @@ function get_env() {
     local VAR_DOTENV_FILE="DOTENV_${VAR_FILE}"
     local VALUE=""
 
-    if [[ "${!VAR:-}" ]]; then
+    if [[ -n "${!VAR:-}" ]]; then
         VALUE="${!VAR}"
-    elif [[ "${!VAR_FILE:-}" ]]; then
+    elif [[ -n "${!VAR_FILE:-}" ]]; then
         VALUE="$(cat "${!VAR_FILE}")"
-    elif [[ "${!VAR_DOTENV_FILE:-}" ]]; then
+    elif [[ -n "${!VAR_DOTENV_FILE:-}" ]]; then
         VALUE="$(cat "${!VAR_DOTENV_FILE}")"
-    elif [[ "${!VAR_DOTENV:-}" ]]; then
+    elif [[ -n "${!VAR_DOTENV:-}" ]]; then
         VALUE="${!VAR_DOTENV}"
     fi