From d5f2b8e5c65b0406254b990296793f664c1926a0 Mon Sep 17 00:00:00 2001
From: jyn <github@jyn.dev>
Date: Mon, 8 May 2023 04:12:38 -0500
Subject: Only depend on CFG_VERSION in rustc_interface

this avoids having to rebuild the whole compiler on each commit when
`omit-git-hash = false`.
---
 compiler/rustc_session/src/session.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'compiler/rustc_session/src')

diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs
index a988d7f28e6..cdac74759e3 100644
--- a/compiler/rustc_session/src/session.rs
+++ b/compiler/rustc_session/src/session.rs
@@ -211,6 +211,9 @@ pub struct Session {
 
     /// Set of enabled features for the current target, including unstable ones.
     pub unstable_target_features: FxIndexSet<Symbol>,
+
+    /// The version of the rustc process, possibly including a commit hash and description.
+    pub cfg_version: &'static str,
 }
 
 pub struct PerfStats {
@@ -1380,6 +1383,7 @@ pub fn build_session(
     driver_lint_caps: FxHashMap<lint::LintId, lint::Level>,
     file_loader: Option<Box<dyn FileLoader + Send + Sync + 'static>>,
     target_override: Option<Target>,
+    cfg_version: &'static str,
 ) -> Session {
     // FIXME: This is not general enough to make the warning lint completely override
     // normal diagnostic warnings, since the warning lint can also be denied and changed
@@ -1524,6 +1528,7 @@ pub fn build_session(
         asm_arch,
         target_features: Default::default(),
         unstable_target_features: Default::default(),
+        cfg_version,
     };
 
     validate_commandline_args_with_session_available(&sess);
-- 
cgit 1.4.1-3-g733a5