feat: add dotenv to load migra config

migra-cli/Cargo.toml

@@ -24,9 +24,13 @@ path = "tests/commands.rs"
 structopt = "0.3"
 serde = { version = "1.0", features = ["derive"] }
 toml = "0.5"
-chrono = "0.4.19"
-postgres = "0.19.0"
+chrono = "0.4"
+postgres = "0.19"
+dotenv = { version = "0.15", optional = true }
 
 [dev-dependencies]
-assert_cmd = "1.0.3"
-predicates = "1.0.7"
+assert_cmd = "1"
+predicates = "1"
+
+[features]
+default = []

migra-cli/src/main.rs

@@ -13,6 +13,9 @@ use opts::{AppOpt, Command, StructOpt};
 use std::io;
 
 fn main() -> StdResult<()> {
+    #[cfg(feature = "dotenv")]
+    dotenv::dotenv().ok();
+
     let opt = AppOpt::from_args();
 
     match opt.command {