From e84228ba01bd80623ba19013360a59a96ca8cee1 Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Sat, 11 Feb 2023 14:59:38 +1100
Subject: [PATCH] Read `log_level` from env `CARGO_BINSTALL_LOG_LEVEL` if arg
 not present (#790)

* Enable feature "env" on dep clap in bin
* Read log_level from env `CARGO_BINSTALL_LOG_LEVEL` if arg not present

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
 crates/bin/Cargo.toml  | 2 +-
 crates/bin/src/args.rs | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/crates/bin/Cargo.toml b/crates/bin/Cargo.toml
index 97791471..3025aacf 100644
--- a/crates/bin/Cargo.toml
+++ b/crates/bin/Cargo.toml
@@ -24,7 +24,7 @@ pkg-fmt = "zip"
 [dependencies]
 binstalk = { path = "../binstalk", version = "0.8.0", default-features = false }
 binstalk-manifests = { path = "../binstalk-manifests", version = "0.3.0" }
-clap = { version = "4.1.4", features = ["derive"] }
+clap = { version = "4.1.4", features = ["derive", "env"] }
 crates_io_api = { version = "0.8.1", default-features = false }
 dirs = "4.0.0"
 fs-lock = { version = "0.1.0", path = "../fs-lock" }
diff --git a/crates/bin/src/args.rs b/crates/bin/src/args.rs
index 107c452c..8a3df325 100644
--- a/crates/bin/src/args.rs
+++ b/crates/bin/src/args.rs
@@ -226,7 +226,12 @@ pub struct Args {
     ///
     /// Set to `off` to disable logging completely, this will also
     /// disable output from `cargo-install`.
-    #[clap(help_heading = "Meta", long, value_name = "LEVEL")]
+    #[clap(
+        help_heading = "Meta",
+        long,
+        value_name = "LEVEL",
+        env = "CARGO_BINSTALL_LOG_LEVEL"
+    )]
     pub log_level: Option<LevelFilter>,
 
     /// Equivalent to setting `log_level` to `off`.