From da42bbe56dfdd9085c9baf259c1894f679956942 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Mon, 15 Mar 2021 12:03:26 +0300
Subject: [PATCH] Additionally key on Rust toolchain file(s) if present

---
 README.md     | 3 ++-
 src/common.ts | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5591719..bbe2ec1 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,8 @@ This cache is automatically keyed by:
 
 - the github `job`,
 - the rustc release / host / hash, and
-- a hash of the `Cargo.lock` / `Cargo.toml` files.
+- a hash of the `Cargo.lock` / `Cargo.toml` files (if present).
+- a hash of the `rust-toolchain` / `rust-toolchain.toml` files (if present).
 
 An additional input `key` can be provided if the builtin keys are not sufficient.
 
diff --git a/src/common.ts b/src/common.ts
index edce69d..4d8c2aa 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -136,7 +136,7 @@ export async function getCmdOutput(
 }
 
 async function getLockfileHash(): Promise<string> {
-  const globber = await glob.create("**/Cargo.toml\n**/Cargo.lock", { followSymbolicLinks: false });
+  const globber = await glob.create("**/Cargo.toml\n**/Cargo.lock\nrust-toolchain\nrust-toolchain.toml", { followSymbolicLinks: false });
   const files = await globber.glob();
   files.sort((a, b) => a.localeCompare(b));