fix long version on nix and ci

src/cli.rs

@@ -24,7 +24,9 @@ use crate::{
 };
 
 #[derive(Parser, Debug)]
-#[command(name = "himalaya", author, version, about)]
+#[command(name = env!("CARGO_PKG_NAME"))]
+#[command(author, version, about)]
+#[command(long_version = Cli::LONG_VERSION)]
 #[command(propagate_version = true, infer_subcommands = true)]
 pub struct Cli {
     #[command(subcommand)]
@@ -72,6 +74,21 @@ pub struct Cli {
     pub trace: bool,
 }
 
+impl Cli {
+    pub const LONG_VERSION: &'static str = concat!(
+        "v",
+        env!("CARGO_PKG_VERSION"),
+        " on ",
+        env!("TARGET_OS"),
+        " ",
+        env!("TARGET_ENV"),
+        " ",
+        env!("TARGET_ARCH"),
+        ", git rev ",
+        env!("GIT_REV"),
+    );
+}
+
 #[derive(Subcommand, Debug)]
 pub enum HimalayaCommand {
     #[command(subcommand)]