Add experimental support for prebuilt linux-riscv64 binaries

.github/workflows/ci.yml

@@ -235,32 +235,40 @@ jobs:
       matrix:
         include:
           - platform: linux-arm
-            distro: bullseye
+            base_image: "balenalib/rpi-raspbian:bullseye"
-            run_on_arch: armv6
             nodejs_arch: armv6l
             nodejs_hostname: unofficial-builds.nodejs.org
             nodejs_version: "18.17.0"
             nodejs_version_major: 18
           - platform: linux-s390x
-            distro: bookworm
+            base_image: "--platform=linux/s390x s390x/debian:bookworm"
-            run_on_arch: s390x
             nodejs_arch: s390x
             nodejs_hostname: nodejs.org
             nodejs_version: "18.17.0"
             nodejs_version_major: 18
           - platform: linux-ppc64
-            distro: bookworm
+            base_image: "--platform=linux/ppc64le ppc64le/debian:bookworm"
-            run_on_arch: ppc64le
             nodejs_arch: ppc64le
             nodejs_hostname: nodejs.org
             nodejs_version: "18.17.0"
             nodejs_version_major: 18
+          - platform: linux-riscv64
+            base_image: "--platform=linux/riscv64 riscv64/debian:trixie"
+            compiler_flags: "-march=rv64gc"
+            nodejs_arch: riscv64
+            nodejs_hostname: unofficial-builds.nodejs.org
+            nodejs_version: "20.19.5"
+            nodejs_version_major: 20
     steps:
       - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v3
         with:
-          arch: ${{ matrix.run_on_arch }}
+          arch: none
-          distro: ${{ matrix.distro }}
+          distro: none
+          base_image: ${{ matrix.base_image }}
+          env: |
+            CFLAGS: "${{ matrix.compiler_flags }}"
+            CXXFLAGS: "${{ matrix.compiler_flags }}"
           run: |
             apt-get update
             apt-get install -y curl g++ git libatomic1 make python3 xz-utils

docs/src/content/docs/changelog/v0.34.5.md

@@ -3,6 +3,8 @@ title: v0.34.5 - TBD
 slug: changelog/v0.34.5
 ---
 
+* Add experimental support for prebuilt Linux RISC-V 64-bit binaries.
+
 * Support building from source with npm v12+, deprecate `--build-from-source` flag.
   [#4458](https://github.com/lovell/sharp/issues/4458)
 

docs/src/content/docs/install.md

@@ -49,6 +49,7 @@ Ready-compiled sharp and libvips binaries are provided for use on the most commo
 * macOS ARM64
 * Linux ARM (glibc >= 2.31)
 * Linux ARM64 (glibc >= 2.26, musl >= 1.2.2)
+* Linux RISC-V 64-bit (glibc >= 2.41)
 * Linux ppc64 (glibc >= 2.36)
 * Linux s390x (glibc >= 2.36)
 * Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)

lib/libvips.js

@@ -16,7 +16,7 @@ const minimumLibvipsVersion = semverCoerce(minimumLibvipsVersionLabelled).versio
 
 const prebuiltPlatforms = [
   'darwin-arm64', 'darwin-x64',
-  'linux-arm', 'linux-arm64', 'linux-ppc64', 'linux-s390x', 'linux-x64',
+  'linux-arm', 'linux-arm64', 'linux-ppc64', 'linux-riscv64', 'linux-s390x', 'linux-x64',
   'linuxmusl-arm64', 'linuxmusl-x64',
   'win32-arm64', 'win32-ia32', 'win32-x64'
 ];

npm/linux-riscv64/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "@img/sharp-linux-riscv64",
+  "version": "0.34.4",
+  "description": "Prebuilt sharp for use with Linux (glibc) RISC-V 64-bit",
+  "author": "Lovell Fuller <npm@lovell.info>",
+  "homepage": "https://sharp.pixelplumbing.com",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lovell/sharp.git",
+    "directory": "npm/linux-riscv64"
+  },
+  "license": "Apache-2.0",
+  "funding": {
+    "url": "https://opencollective.com/libvips"
+  },
+  "preferUnplugged": true,
+  "optionalDependencies": {
+    "@img/sharp-libvips-linux-riscv64": "1.2.3"
+  },
+  "files": [
+    "lib"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "type": "commonjs",
+  "exports": {
+    "./sharp.node": "./lib/sharp-linux-riscv64.node",
+    "./package": "./package.json"
+  },
+  "engines": {
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+  },
+  "config": {
+    "glibc": ">=2.41"
+  },
+  "os": [
+    "linux"
+  ],
+  "libc": [
+    "glibc"
+  ],
+  "cpu": [
+    "riscv64"
+  ]
+}

package.json

@@ -151,6 +151,7 @@
     "@img/sharp-libvips-linux-arm": "1.2.3",
     "@img/sharp-libvips-linux-arm64": "1.2.3",
     "@img/sharp-libvips-linux-ppc64": "1.2.3",
+    "@img/sharp-libvips-linux-riscv64": "1.2.3",
     "@img/sharp-libvips-linux-s390x": "1.2.3",
     "@img/sharp-libvips-linux-x64": "1.2.3",
     "@img/sharp-libvips-linuxmusl-arm64": "1.2.3",
@@ -158,6 +159,7 @@
     "@img/sharp-linux-arm": "0.34.4",
     "@img/sharp-linux-arm64": "0.34.4",
     "@img/sharp-linux-ppc64": "0.34.4",
+    "@img/sharp-linux-riscv64": "0.34.4",
     "@img/sharp-linux-s390x": "0.34.4",
     "@img/sharp-linux-x64": "0.34.4",
     "@img/sharp-linuxmusl-arm64": "0.34.4",