From f157ce994ea45e9faea9eff89c5f8b3d4ea77b6e Mon Sep 17 00:00:00 2001
From: Noratrieb <48135649+Noratrieb@users.noreply.github.com>
Date: Sat, 26 Jul 2025 12:39:31 +0200
Subject: Add --print target-spec-json-schema

This schema is helpful for people writing custom target spec JSON. It
can provide autocomplete in the editor, and also serves as documentation
when there are documentation comments on the structs, as `schemars` will
put them in the schema.
---
 compiler/rustc_driver_impl/src/lib.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'compiler/rustc_driver_impl/src')

diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index d00a4c35834..4f875cf99ec 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -668,6 +668,10 @@ fn print_crate_info(
             TargetSpecJson => {
                 println_info!("{}", serde_json::to_string_pretty(&sess.target.to_json()).unwrap());
             }
+            TargetSpecJsonSchema => {
+                let schema = rustc_target::spec::json_schema();
+                println_info!("{}", serde_json::to_string_pretty(&schema).unwrap());
+            }
             AllTargetSpecsJson => {
                 let mut targets = BTreeMap::new();
                 for name in rustc_target::spec::TARGETS {
-- 
cgit 1.4.1-3-g733a5