include_str! the release version from a VERSION file

VERSION

@@ -0,0 +1 @@
+22.03

helix-term/build.rs

@@ -1,18 +1,10 @@
 use helix_loader::grammar::{build_grammars, fetch_grammars};
 use std::borrow::Cow;
-use std::io::Read;
 use std::process::Command;
 
-fn main() {
-    let mut version = String::new();
-
-    if std::fs::File::open("../.version")
-        .and_then(|mut f| f.read_to_string(&mut version))
-        .is_err()
-    {
-        version = "dev".to_string();
-    }
+const VERSION: &'static str = include_str!("../VERSION");
 
+fn main() {
     let git_hash = Command::new("git")
         .args(&["rev-parse", "HEAD"])
         .output()
@@ -21,8 +13,8 @@ fn main() {
         .and_then(|x| String::from_utf8(x.stdout).ok());
 
     let version: Cow<_> = match git_hash {
-        Some(git_hash) => format!("{} ({})", version, &git_hash[..8]).into(),
-        None => version.into(),
+        Some(git_hash) => format!("{} ({})", VERSION, &git_hash[..8]).into(),
+        None => VERSION.into(),
     };
 
     if std::env::var("HELIX_DISABLE_AUTO_GRAMMAR_BUILD").is_err() {
@@ -31,7 +23,7 @@ fn main() {
     }
 
     println!("cargo:rerun-if-changed=../runtime/grammars/");
-    println!("cargo:rerun-if-changed=../.version");
+    println!("cargo:rerun-if-changed=../VERSION");
 
     println!("cargo:rustc-env=VERSION_AND_GIT_HASH={}", version);
 }