From 9f332a133a60f39d23361d5262fa95793aa02590 Mon Sep 17 00:00:00 2001
From: Ludovic Henry <ludovic@rivosinc.com>
Date: Tue, 10 Mar 2026 15:38:42 +0100
Subject: [PATCH] Add riscv64 architecture support to platform detection (#791)

Add `riscv64gc` as a recognized architecture in the `Architecture` type
union and map Node.js's `riscv64` process.arch value to the `riscv64gc`
uv platform identifier.

This allows the action to correctly detect and download the appropriate
uv binary on RISC-V 64-bit systems (e.g., linux/riscv64 runners).
---
 dist/save-cache/index.js | 1 +
 dist/setup/index.js      | 1 +
 src/utils/platforms.ts   | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/dist/save-cache/index.js b/dist/save-cache/index.js
index d1c53b2..390c1ee 100644
--- a/dist/save-cache/index.js
+++ b/dist/save-cache/index.js
@@ -91307,6 +91307,7 @@ function getArch() {
         arm64: "aarch64",
         ia32: "i686",
         ppc64: "powerpc64le",
+        riscv64: "riscv64gc",
         s390x: "s390x",
         x64: "x86_64",
     };
diff --git a/dist/setup/index.js b/dist/setup/index.js
index cb5e263..04a32d5 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -97230,6 +97230,7 @@ function getArch() {
         arm64: "aarch64",
         ia32: "i686",
         ppc64: "powerpc64le",
+        riscv64: "riscv64gc",
         s390x: "s390x",
         x64: "x86_64",
     };
diff --git a/src/utils/platforms.ts b/src/utils/platforms.ts
index bf044ca..130479f 100644
--- a/src/utils/platforms.ts
+++ b/src/utils/platforms.ts
@@ -13,6 +13,7 @@ export type Architecture =
   | "x86_64"
   | "aarch64"
   | "s390x"
+  | "riscv64gc"
   | "powerpc64le";
 
 export function getArch(): Architecture | undefined {
@@ -21,6 +22,7 @@ export function getArch(): Architecture | undefined {
     arm64: "aarch64",
     ia32: "i686",
     ppc64: "powerpc64le",
+    riscv64: "riscv64gc",
     s390x: "s390x",
     x64: "x86_64",
   };