feat(b2sum): add Blake2b checksum utility

Cargo.toml

@@ -287,6 +287,7 @@ resolver = "3"
 members = [
   ".",
   "src/uu/*",
+  "src/uu/b2sum",
   "src/uu/stdbuf/src/libstdbuf",
   "src/uucore",
   "src/uucore_procs",

src/uu/b2sum/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "uu_b2sum"
+version = "0.0.28"
+authors.workspace = true
+license = "MIT"
+description = "b2sum ~ (uutils) compute and check BLAKE2 message digest"
+repository = "https://github.com/uutils/coreutils/tree/main/src/uu/b2sum"
+homepage.workspace = true
+keywords.workspace = true
+categories.workspace = true
+edition.workspace = true
+readme.workspace = true
+
+[dependencies]
+clap = { workspace = true }
+uucore = { workspace = true, features = ["checksum"] }
+uu_hashsum = { path = "../hashsum" }
+
+[[bin]]
+name = "b2sum"
+path = "src/main.rs"
+
+[dev-dependencies]

src/uu/b2sum/locales/en-US.ftl

@@ -0,0 +1,5 @@
+# b2sum messages
+
+b2sum-invalid-length = invalid length: '{$length}'
+b2sum-length-not-multiple = length must be a multiple of 8
+b2sum-length-too-large = length exceeds maximum of 512 bits

src/uu/b2sum/locales/fr-FR.ftl

@@ -0,0 +1,5 @@
+# b2sum messages
+
+b2sum-invalid-length = longueur invalide : '{$length}'
+b2sum-length-not-multiple = la longueur doit être un multiple de 8
+b2sum-length-too-large = la longueur dépasse le maximum de 512 bits

src/uu/b2sum/src/b2sum.rs

@@ -0,0 +1,20 @@
+// This file is part of the uutils coreutils package.
+//
+// For the full copyright and license information, please view the LICENSE
+// file that was distributed with this source code.
+
+use uucore::error::UResult;
+
+#[uucore::main]
+pub fn uumain(args: impl uucore::Args) -> UResult<()> {
+    // Delegate to hashsum with b2sum binary name
+    // hashsum's uumain has #[uucore::main] so it returns i32
+    let exit_code = uu_hashsum::uumain(args);
+
+    // Convert exit code back to UResult
+    if exit_code == 0 {
+        Ok(())
+    } else {
+        Err(uucore::error::USimpleError::new(exit_code, "b2sum failed"))
+    }
+}

src/uu/b2sum/src/lib.rs

@@ -0,0 +1,7 @@
+// This file is part of the uutils coreutils package.
+//
+// For the full copyright and license information, please view the LICENSE
+// file that was distributed with this source code.
+
+mod b2sum;
+pub use b2sum::*;

src/uu/b2sum/src/main.rs

@@ -0,0 +1,6 @@
+// This file is part of the uutils coreutils package.
+//
+// For the full copyright and license information, please view the LICENSE
+// file that was distributed with this source code.
+
+uucore::bin!(uu_b2sum);