bikeshed to make x more small

custom-pkgs/default.nix

@@ -1,6 +1,6 @@
 pkgs: {
   cargo-bisect-rustc = import ./cargo-bisect-rustc/default.nix pkgs;
   monaspace = import ./monaspace.nix pkgs;
-  x = import ./x pkgs;
+  x = import ./x { inherit pkgs; };
 }
 

custom-pkgs/x/Cargo.lock

@@ -1,7 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "x"
-version = "0.1.0"

custom-pkgs/x/Cargo.toml

@@ -1,8 +0,0 @@
-[package]
-name = "x"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]

custom-pkgs/x/README.md

@@ -1,3 +0,0 @@
-vendored x from https://github.com/rust-lang/rust/blob/master/src/tools/x to avoid the big clone
-
-commit 0ea7ddcc35a2fcaa5da8a7dcfc118c9fb4a63b95

custom-pkgs/x/default.nix

@@ -1,10 +1,14 @@
-pkgs: pkgs.rustPlatform.buildRustPackage {
-  pname = "x";
-  version = "1.0.1";
+{ pkgs ? import <nixpkgs> { } }: pkgs.stdenv.mkDerivation {
+  name = "x";
 
-  src = ./.;
+  src = ./x.rs;
+  dontUnpack = true;
 
-  cargoLock.lockFile = ./Cargo.lock;
+  nativeBuildInputs = with pkgs; [ rustc ];
+
+  buildPhase = ''
+    rustc -Copt-level=3 -Cembed-bitcode=false $src --out-dir $out/bin
+  '';
 
   meta = with pkgs.lib; {
     description = "Helper for rust-lang/rust x.py";

custom-pkgs/x/src/main.rs

@@ -1,142 +0,0 @@
-// git clone https://github.com/rust-lang/rust/blob/0ea7ddcc35a2fcaa5da8a7dcfc118c9fb4a63b95/src/tools/x/src/main.rs
-//! Run bootstrap from any subdirectory of a rust compiler checkout.
-//!
-//! We prefer `exec`, to avoid adding an extra process in the process tree.
-//! However, since `exec` isn't available on Windows, we indirect through
-//! `exec_or_status`, which will call `exec` on unix and `status` on Windows.
-//!
-//! We use `powershell.exe x.ps1` on Windows, and `sh -c x` on Unix, those are
-//! the ones that call `x.py`. We use `sh -c` on Unix, because it is a standard.
-//! We also don't use `pwsh` on Windows, because it is not installed by default;
-
-use std::{
-    env::{self, consts::EXE_EXTENSION},
-    io,
-    path::Path,
-    process::{self, Command, ExitStatus},
-};
-
-const PYTHON: &str = "python";
-const PYTHON2: &str = "python2";
-const PYTHON3: &str = "python3";
-
-fn python() -> &'static str {
-    let val = match env::var_os("PATH") {
-        Some(val) => val,
-        None => return PYTHON,
-    };
-
-    let mut python2 = false;
-    let mut python3 = false;
-
-    for dir in env::split_paths(&val) {
-        // `python` should always take precedence over python2 / python3 if it exists
-        if dir.join(PYTHON).with_extension(EXE_EXTENSION).exists() {
-            return PYTHON;
-        }
-
-        python2 |= dir.join(PYTHON2).with_extension(EXE_EXTENSION).exists();
-        python3 |= dir.join(PYTHON3).with_extension(EXE_EXTENSION).exists();
-    }
-
-    // try 3 before 2
-    if python3 {
-        PYTHON3
-    } else if python2 {
-        PYTHON2
-    } else {
-        // Python was not found on path, so exit
-        eprintln!("Unable to find python in your PATH. Please check it is installed.");
-        process::exit(1);
-    }
-}
-
-#[cfg(windows)]
-fn x_command(dir: &Path) -> Command {
-    let mut cmd = Command::new("powershell.exe");
-    cmd.args([
-        "-NoLogo",
-        "-NoProfile",
-        "-NonInteractive",
-        "-ExecutionPolicy",
-        "RemoteSigned",
-        "-Command",
-        "./x.ps1",
-    ])
-    .current_dir(dir);
-    cmd
-}
-
-#[cfg(unix)]
-fn x_command(dir: &Path) -> Command {
-    Command::new(dir.join("x"))
-}
-
-#[cfg(not(any(windows, unix)))]
-fn x_command(_dir: &Path) -> Command {
-    compile_error!("Unsupported platform");
-}
-
-#[cfg(unix)]
-fn exec_or_status(command: &mut Command) -> io::Result<ExitStatus> {
-    use std::os::unix::process::CommandExt;
-    Err(command.exec())
-}
-
-#[cfg(not(unix))]
-fn exec_or_status(command: &mut Command) -> io::Result<ExitStatus> {
-    command.status()
-}
-
-fn handle_result(result: io::Result<ExitStatus>, cmd: Command) {
-    match result {
-        Err(error) => {
-            eprintln!("Failed to invoke `{:?}`: {}", cmd, error);
-        }
-        Ok(status) => {
-            process::exit(status.code().unwrap_or(1));
-        }
-    }
-}
-
-fn main() {
-    match env::args().skip(1).next().as_deref() {
-        Some("--wrapper-version") => {
-            let version = env!("CARGO_PKG_VERSION");
-            println!("{}", version);
-            return;
-        }
-        _ => {}
-    }
-    let current = match env::current_dir() {
-        Ok(dir) => dir,
-        Err(err) => {
-            eprintln!("Failed to get current directory: {err}");
-            process::exit(1);
-        }
-    };
-
-    for dir in current.ancestors() {
-        let candidate = dir.join("x.py");
-        if candidate.exists() {
-            let shell_script_candidate = dir.join("x");
-            let mut cmd: Command;
-            if shell_script_candidate.exists() {
-                cmd = x_command(dir);
-                cmd.args(env::args().skip(1)).current_dir(dir);
-            } else {
-                // For older checkouts that do not have the x shell script, default to python
-                cmd = Command::new(python());
-                cmd.arg(&candidate).args(env::args().skip(1)).current_dir(dir);
-            }
-            let result = exec_or_status(&mut cmd);
-            handle_result(result, cmd);
-        }
-    }
-
-    eprintln!(
-        "x.py not found. Please run inside of a checkout of `https://github.com/rust-lang/rust`."
-    );
-
-    process::exit(1);
-}

custom-pkgs/x/x.rs

@@ -0,0 +1,57 @@
+// git clone https://github.com/rust-lang/rust/blob/0ea7ddcc35a2fcaa5da8a7dcfc118c9fb4a63b95/src/tools/x/src/main.rs
+// patched to stop doing python probing, stop the probe, please dont, i have a python
+//! Run bootstrap from any subdirectory of a rust compiler checkout.
+//!
+//! We prefer `exec`, to avoid adding an extra process in the process tree.
+//! However, since `exec` isn't available on Windows, we indirect through
+//! `exec_or_status`, which will call `exec` on unix and `status` on Windows.
+//!
+//! We use `powershell.exe x.ps1` on Windows, and `sh -c x` on Unix, those are
+//! the ones that call `x.py`. We use `sh -c` on Unix, because it is a standard.
+//! We also don't use `pwsh` on Windows, because it is not installed by default;
+
+use std::{
+    env, io,
+    path::Path,
+    process::{self, Command, ExitStatus},
+    os::unix::process::CommandExt,
+};
+
+fn main() {
+    match env::args().skip(1).next().as_deref() {
+        Some("--wrapper-version") => {
+            println!("0.1.0");
+            return;
+        }
+        _ => {}
+    }
+    let current = match env::current_dir() {
+        Ok(dir) => dir,
+        Err(err) => {
+            eprintln!("Failed to get current directory: {err}");
+            process::exit(1);
+        }
+    };
+
+    for dir in current.ancestors() {
+        let candidate = dir.join("x.py");
+        if candidate.exists() {
+            let shell_script_candidate = dir.join("x");
+            let mut cmd: Command;
+            if shell_script_candidate.exists() {
+                cmd = Command::new(dir.join("x"));
+                cmd.args(env::args().skip(1)).current_dir(dir);
+            } else {
+                panic!("error: cry about it");
+            }
+            let error = cmd.exec();
+            eprintln!("Failed to invoke `{:?}`: {}", cmd, error);
+        }
+    }
+
+    eprintln!(
+        "x.py not found. Please run inside of a checkout of `https://github.com/rust-lang/rust`."
+    );
+
+    process::exit(1);
+}