bootstrap: Add support for ./x setup helix

Author: mrkajetanp

src/bootstrap/src/core/build_steps/setup.rs

@@ -523,6 +523,7 @@ undesirable, simply delete the `pre-push` file from .git/hooks."
 enum EditorKind {
     Vscode,
     Emacs,
+    Helix,
 }
 
 impl EditorKind {
@@ -544,6 +545,9 @@ impl EditorKind {
             EditorKind::Emacs => vec![
                 "51068d4747a13732440d1a8b8f432603badb1864fa431d83d0fd4f8fa57039e0"
             ],
+            EditorKind::Helix => vec![
+                "2d3069b8cf1b977e5d4023965eb6199597755e6c96c185ed5f2854f98b83d233"
+            ]
         }
     }
 
@@ -555,20 +559,23 @@ impl EditorKind {
         match self {
             EditorKind::Vscode => PathBuf::new().join(".vscode").join("settings.json"),
             EditorKind::Emacs => PathBuf::new().join(".dir-locals.el"),
+            EditorKind::Helix => PathBuf::new().join(".helix").join("languages.toml"),
         }
     }
 
     fn settings(&self) -> &str {
         match self {
             EditorKind::Vscode => include_str!("../../../../etc/rust_analyzer_settings.json"),
             EditorKind::Emacs => include_str!("../../../../etc/rust_analyzer_eglot.el"),
+            EditorKind::Helix => include_str!("../../../../etc/rust_analyzer_helix.toml"),
         }
     }
 
     fn backup_extension(&self) -> &str {
         match self {
             EditorKind::Vscode => "json.bak",
             EditorKind::Emacs => "el.bak",
+            EditorKind::Helix => "toml.bak",
         }
     }
 }
@@ -612,6 +619,7 @@ macro_rules! impl_editor_support {
 
 impl_editor_support!(vscode, Vscode);
 impl_editor_support!(emacs, Emacs);
+impl_editor_support!(helix, Helix);
 
 /// Create the recommended editor LSP config file for rustc development, or just print it
 /// If this method should be re-called, it returns `false`.

src/bootstrap/src/core/builder.rs

@@ -1001,7 +1001,7 @@ impl<'a> Builder<'a> {
                 run::GenerateCompletions,
             ),
             Kind::Setup => {
-                describe!(setup::Profile, setup::Hook, setup::Link, setup::Vscode, setup::Emacs)
+                describe!(setup::Profile, setup::Hook, setup::Link, setup::Vscode, setup::Emacs, setup::Helix)
             }
             Kind::Clean => describe!(clean::CleanAll, clean::Rustc, clean::Std),
             Kind::Vendor => describe!(vendor::Vendor),

src/bootstrap/src/core/config/flags.rs

@@ -451,11 +451,12 @@ Arguments:
         ./x.py setup hook
         ./x.py setup vscode
         ./x.py setup emacs
+        ./x.py setup helix
         ./x.py setup link", Profile::all_for_help("        ").trim_end()))]
     Setup {
         /// Either the profile for `config.toml` or another setup action.
         /// May be omitted to set up interactively
-        #[arg(value_name = "<PROFILE>|hook|vscode|emacs|link")]
+        #[arg(value_name = "<PROFILE>|hook|vscode|emacs|helix|link")]
         profile: Option<PathBuf>,
     },
     /// Suggest a subset of tests to run, based on modified files

src/etc/completions/x.py.sh

@@ -2741,7 +2741,7 @@ _x.py() {
             return 0
             ;;
         x.py__setup)
-            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [<PROFILE>|hook|vscode|emacs|link] [PATHS]... [ARGS]..."
+            opts="-v -i -j -h --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --error-format --json-output --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --help [<PROFILE>|hook|vscode|emacs|helix|link] [PATHS]... [ARGS]..."
             if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then
                 COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
                 return 0