Remove embed_runtime feature

It's no longer practical to maintain. Closes #451

Cargo.lock

@@ -317,7 +317,6 @@ dependencies = [
  "quickcheck",
  "regex",
  "ropey",
- "rust-embed",
  "serde",
  "similar",
  "smallvec",
@@ -773,39 +772,6 @@ dependencies = [
  "smallvec",
 ]
 
-[[package]]
-name = "rust-embed"
-version = "5.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fe1fe6aac5d6bb9e1ffd81002340363272a7648234ec7bdfac5ee202cb65523"
-dependencies = [
- "rust-embed-impl",
- "rust-embed-utils",
- "walkdir",
-]
-
-[[package]]
-name = "rust-embed-impl"
-version = "5.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ed91c41c42ef7bf687384439c312e75e0da9c149b0390889b94de3c7d9d9e66"
-dependencies = [
- "proc-macro2",
- "quote",
- "rust-embed-utils",
- "syn",
- "walkdir",
-]
-
-[[package]]
-name = "rust-embed-utils"
-version = "5.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a512219132473ab0a77b52077059f1c47ce4af7fbdc94503e9862a34422876d"
-dependencies = [
- "walkdir",
-]
-
 [[package]]
 name = "ryu"
 version = "1.0.5"

README.md

@@ -51,13 +51,6 @@ # Installation
 > NOTE: running via cargo also doesn't require setting explicit `HELIX_RUNTIME` path, it will automatically
 > detect the `runtime` directory in the project root.
 
-Alternatively, if you want to embed the `runtime/` directory into the Helix binary you can build
-it with:
-
-```
-cargo install --path helix-term --features "embed_runtime"
-```
-
 [![Packaging status](https://repology.org/badge/vertical-allrepos/helix.svg)](https://repology.org/project/helix/versions)
 
 ## MacOS

book/src/install.md

@@ -37,13 +37,6 @@ ## Build from source
 
 This will install the `hx` binary to `$HOME/.cargo/bin`.
 
-Now copy the `runtime/` directory somewhere. Helix will by default look for the
-runtime inside the same folder as the executable, but that can be overriden via
-the `HELIX_RUNTIME` environment variable.
-
-If you want to embed the `runtime/` directory into the Helix binary you can build
-it with:
-
-```
-cargo install --path helix-term --features "embed_runtime"
-```
+Helix also needs it's runtime files so make sure to copy/symlink the `runtime/` directory into the
+config directory (for example `~/.config/helix/runtime` on Linux/macOS). This location can be overriden
+via the `HELIX_RUNTIME` environment variable.

helix-core/Cargo.toml

@@ -11,7 +11,6 @@ homepage = "https://helix-editor.com"
 include = ["src/**/*", "README.md"]
 
 [features]
-embed_runtime = ["rust-embed"]
 
 [dependencies]
 helix-syntax = { version = "0.3", path = "../helix-syntax" }
@@ -34,7 +33,6 @@ toml = "0.5"
 similar = "1.3"
 
 etcetera = "0.3"
-rust-embed = { version = "5.9.0", optional = true }
 
 [dev-dependencies]
 quickcheck = { version = "1", default-features = false }

helix-core/src/lib.rs

@@ -58,7 +58,6 @@ pub fn find_root(root: Option<&str>) -> Option<std::path::PathBuf> {
     None
 }
 
-#[cfg(not(embed_runtime))]
 pub fn runtime_dir() -> std::path::PathBuf {
     if let Ok(dir) = std::env::var("HELIX_RUNTIME") {
         return dir.into();

helix-core/src/syntax.rs

@@ -84,7 +84,6 @@ pub struct IndentQuery {
     pub outdent: HashSet<String>,
 }
 
-#[cfg(not(feature = "embed_runtime"))]
 fn load_runtime_file(language: &str, filename: &str) -> Result<String, std::io::Error> {
     let path = crate::RUNTIME_DIR
         .join("queries")
@@ -93,34 +92,6 @@ fn load_runtime_file(language: &str, filename: &str) -> Result<String, std::io::
     std::fs::read_to_string(&path)
 }
 
-#[cfg(feature = "embed_runtime")]
-fn load_runtime_file(language: &str, filename: &str) -> Result<String, Box<dyn std::error::Error>> {
-    use std::path::PathBuf;
-
-    #[derive(rust_embed::RustEmbed)]
-    #[folder = "../runtime/"]
-    struct Runtime;
-
-    #[derive(Debug)]
-    struct EmbeddedFileNotFoundError {
-        path: PathBuf,
-    }
-    impl std::error::Error for EmbeddedFileNotFoundError {}
-    impl fmt::Display for EmbeddedFileNotFoundError {
-        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-            write!(f, "failed to load embedded file {}", self.path.display())
-        }
-    }
-
-    let path = PathBuf::from("queries").join(language).join(filename);
-
-    if let Some(query_bytes) = Runtime::get(&path.display().to_string()) {
-        String::from_utf8(query_bytes.to_vec()).map_err(|err| err.into())
-    } else {
-        Err(Box::new(EmbeddedFileNotFoundError { path }))
-    }
-}
-
 fn read_query(language: &str, filename: &str) -> String {
     static INHERITS_REGEX: Lazy<Regex> =
         Lazy::new(|| Regex::new(r";+\s*inherits\s*:?\s*([a-z_,()]+)\s*").unwrap());

helix-term/Cargo.toml

@@ -15,7 +15,6 @@ build = true
 app = true
 
 [features]
-embed_runtime = ["helix-core/embed_runtime"]
 
 [[bin]]
 name = "hx"