Repo created

tools/rustup-wrapper/.gitignore

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+target/

tools/rustup-wrapper/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
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tools/rustup-wrapper/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "rustup-wrapper"
+version = "0.0.0"
+edition = "2024"
+
+[dependencies]
+home = "0.5"
+
+[profile.release]
+strip = true
+lto = true
+codegen-units = 1

tools/rustup-wrapper/src/main.rs

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+use std::env;
+use std::path::Path;
+use std::process::{Command, Stdio};
+
+use home::cargo_home;
+
+/********************************
+ * Why do we need this wrapper?
+ ********************************
+ *
+ * The command `rustup component list` does not work with custom toolchains:
+ * > error: toolchain 'magisk' does not support components
+ *
+ * However, this command is used by several IDEs to determine component
+ * availability, such as clippy, rustfmt etc.
+ * In this program, we use the output of the command with the nightly
+ * channel if any `component` command failed.
+*/
+
+fn main() -> std::io::Result<()> {
+    let exe = env::args().next().unwrap();
+    let exe = Path::new(&exe).file_name().unwrap().to_str().unwrap();
+    let real_exe = cargo_home()?.join("bin").join(exe);
+    let argv: Vec<String> = env::args().skip(1).collect();
+
+    if exe.starts_with("rustup") && argv.iter().any(|s| s == "component") {
+        let status = Command::new(&real_exe)
+            .args(&argv)
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .status()?;
+        if !status.success() {
+            let mut cmd = Command::new(&real_exe);
+            // Hardcode to use the nightly channel
+            cmd.arg("+nightly");
+            // Remove any explicit channel specification
+            cmd.args(argv.iter().filter(|s| !s.starts_with('+')));
+            return cmd.status().map(|_| ());
+        }
+    }
+
+    // Simply pass through
+    Command::new(&real_exe).args(argv.iter()).status().map(|_| ())
+}