feat: add S3 auth support (behind a new feature flag)

Author: mat813

Cargo.toml

@@ -48,6 +48,12 @@ reqwest = { version = "0.13", default-features = false, optional = true, feature
 
 ureq = { version = "3.0.6", optional = true, default-features = false, features = ["gzip", "json", "socks-proxy", "charset"]}
 
+hmac = { version = "0.12.1", optional = true }
+percent-encoding = { version = "2.3.2", optional = true }
+sha2 = { version = "0.10.0", optional = true }
+time = { version = "0.3.45", optional = true }
+url = { version = "2.5.8", optional = true }
+
 [features]
 default = ["reqwest", "default-tls"]
 
@@ -64,3 +70,4 @@ rustls = ["reqwest?/rustls", "ureq?/rustls"]
 
 reqwest = ["dep:reqwest"]
 ureq = ["dep:ureq"]
+s3-auth = ["dep:hmac", "dep:percent-encoding", "dep:sha2", "dep:url", "dep:time"]

README.md

@@ -78,6 +78,8 @@ fn update() -> Result<(), Box<::std::error::Error>> {
         .asset_prefix("something/self_update")
         .region("eu-west-2")
         .bin_name("self_update_example")
+        // .access_key_id(env!("AWS_ACCESS_KEY_ID"))
+        // .secret_access_key(env!("AWS_SECRET_ACCESS_KEY"))
         .show_download_progress(true)
         .current_version(cargo_crate_version!())
         .build()?