From 25d28531a1e042f74cb0ea6543f74a450d682d72 Mon Sep 17 00:00:00 2001
From: Dmitriy Pleshevskiy <dmitriy@ideascup.me>
Date: Mon, 7 Nov 2022 23:41:52 +0300
Subject: [PATCH] cli: fallback to environment variable

---
 Cargo.toml | 2 +-
 src/cli.rs | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 842935b..fc6b11e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ categories = ["command-line-interface", "config", "development-tools"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = { version = "3.2.15", default-features = false, features = ["std", "derive"] }
+clap = { version = "3.2.15", default-features = false, features = ["std", "env", "derive"] }
 
 [features]
 color = ["clap/color"]
diff --git a/src/cli.rs b/src/cli.rs
index a3b268d..e0d0b2a 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -39,6 +39,7 @@ pub struct Args {
         short = 'f',
         long,
         default_value = ".env",
+        env = "VNETOD_FILE",
         help = "Change source file with environment variables"
     )]
     pub file: PathBuf,