From d11d663c5c7ff12d1eb737c9e073d50f5c3f5a53 Mon Sep 17 00:00:00 2001
From: BlackDex <black.dex@gmail.com>
Date: Thu, 12 Nov 2020 13:40:26 +0100
Subject: [PATCH] Added error handling during dotenv loading
Some issue people report are because of misconfiguration or bad .env
files. To mittigate this i added error handling for this.
- Panic/Quit on a LineParse error, which indicates bad .env file format.
- Emits a info message when there is no .env file found.
- Emits a warning message when there is a .env file, but not no
permissions.
- Emits a warning on every other message not specifically catched.
---
src/config.rs | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/src/config.rs b/src/config.rs
index 09f4ae2e..b23dd674 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -53,7 +53,32 @@ macro_rules! make_config {
impl ConfigBuilder {
fn from_env() -> Self {
- dotenv::from_path(".env").ok();
+ match dotenv::from_path(".env") {
+ Ok(_) => (),
+ Err(e) => match e {
+ dotenv::Error::LineParse(msg, pos) => {
+ panic!("Error loading the .env file:\nNear {:?} on position {}\nPlease fix and restart!\n", msg, pos);
+ },
+ dotenv::Error::Io(ioerr) => match ioerr.kind() {
+ std::io::ErrorKind::NotFound => {
+ println!("[INFO] No .env file found.\n");
+ ()
+ },
+ std::io::ErrorKind::PermissionDenied => {
+ println!("[WARNING] Permission Denied while trying to read the .env file!\n");
+ ()
+ },
+ _ => {
+ println!("[WARNING] Reading the .env file failed:\n{:?}\n", ioerr);
+ ()
+ }
+ },
+ _ => {
+ println!("[WARNING] Reading the .env file failed:\n{:?}\n", e);
+ ()
+ }
+ }
+ };
let mut builder = ConfigBuilder::default();
$($(