From 5531cd380684449d6342ada49d1e56fb8ec71067 Mon Sep 17 00:00:00 2001
From: chansuke <moonset20@gmail.com>
Date: Sat, 28 Jan 2023 18:47:04 +0900
Subject: [PATCH] Add new environment variable `CARGO_PKG_README`

---
 src/cargo/core/compiler/compilation.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/cargo/core/compiler/compilation.rs b/src/cargo/core/compiler/compilation.rs
index ffd3881dc57..29642f13d79 100644
--- a/src/cargo/core/compiler/compilation.rs
+++ b/src/cargo/core/compiler/compilation.rs
@@ -343,6 +343,10 @@ impl<'cfg> Compilation<'cfg> {
                 "CARGO_PKG_RUST_VERSION",
                 &pkg.rust_version().unwrap_or(&String::new()),
             )
+            .env(
+                "CARGO_PKG_README",
+                metadata.readme.as_ref().unwrap_or(&String::new()),
+            )
             .cwd(pkg.root());
 
         // Apply any environment variables from the config