Support OS using musl (#284)

Fixes: #278

.github/workflows/test.yml

@@ -200,7 +200,6 @@ jobs:
             exit 1
           fi
         shell: bash
-
   test-malformed-pyproject-file-fallback:
     runs-on: ubuntu-latest
     steps:
@@ -212,3 +211,13 @@ jobs:
           pyproject-file: "__tests__/fixtures/malformed-pyproject-toml-project/pyproject.toml"
       - run: uv sync
         working-directory: __tests__/fixtures/uv-project
+  test-musl:
+    runs-on: ubuntu-latest
+    container: alpine
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install latest version
+        uses: ./
+      - run: apk add python3
+      - run: uv sync
+        working-directory: __tests__/fixtures/uv-project

dist/save-cache/index.js

@@ -91494,7 +91494,8 @@ async function computeKeys() {
     }
     const suffix = inputs_1.cacheSuffix ? `-${inputs_1.cacheSuffix}` : "";
     const pythonVersion = await getPythonVersion();
-    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${(0, platforms_1.getPlatform)()}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
+    const platform = await (0, platforms_1.getPlatform)();
+    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${platform}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
 }
 async function getPythonVersion() {
     if (inputs_1.pythonVersion !== "") {
@@ -91847,13 +91848,48 @@ function expandTilde(input) {
 /***/ }),
 
 /***/ 8361:
-/***/ ((__unused_webpack_module, exports) => {
+/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
 
 "use strict";
 
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
 Object.defineProperty(exports, "__esModule", ({ value: true }));
 exports.getArch = getArch;
 exports.getPlatform = getPlatform;
+const exec = __importStar(__nccwpck_require__(5236));
+const core = __importStar(__nccwpck_require__(7484));
 function getArch() {
     const arch = process.arch;
     const archMapping = {
@@ -91867,15 +91903,46 @@ function getArch() {
         return archMapping[arch];
     }
 }
-function getPlatform() {
+async function getPlatform() {
-    const platform = process.platform;
+    const processPlatform = process.platform;
     const platformMapping = {
         linux: "unknown-linux-gnu",
         darwin: "apple-darwin",
         win32: "pc-windows-msvc",
     };
-    if (platform in platformMapping) {
+    if (processPlatform in platformMapping) {
-        return platformMapping[platform];
+        const platform = platformMapping[processPlatform];
+        if (platform === "unknown-linux-gnu") {
+            const isMusl = await isMuslOs();
+            return isMusl ? "unknown-linux-musl" : platform;
+        }
+        return platform;
+    }
+}
+async function isMuslOs() {
+    let stdOutput = "";
+    let errOutput = "";
+    const options = {
+        silent: !core.isDebug(),
+        listeners: {
+            stdout: (data) => {
+                stdOutput += data.toString();
+            },
+            stderr: (data) => {
+                errOutput += data.toString();
+            },
+        },
+        ignoreReturnCode: true,
+    };
+    try {
+        const execArgs = ["--version"];
+        await exec.exec("ldd", execArgs, options);
+        return stdOutput.includes("musl") || errOutput.includes("musl");
+    }
+    catch (error) {
+        const err = error;
+        core.warning(`Failed to determine glibc or musl. Falling back to glibc. Error: ${err.message}`);
+        return false;
     }
 }
 

dist/setup/index.js

@@ -92397,7 +92397,8 @@ async function computeKeys() {
     }
     const suffix = inputs_1.cacheSuffix ? `-${inputs_1.cacheSuffix}` : "";
     const pythonVersion = await getPythonVersion();
-    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${(0, platforms_1.getPlatform)()}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
+    const platform = await (0, platforms_1.getPlatform)();
+    return `setup-uv-${CACHE_VERSION}-${(0, platforms_1.getArch)()}-${platform}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
 }
 async function getPythonVersion() {
     if (inputs_1.pythonVersion !== "") {
@@ -95383,7 +95384,7 @@ const exec = __importStar(__nccwpck_require__(5236));
 const node_fs_1 = __importDefault(__nccwpck_require__(3024));
 const pyproject_1 = __nccwpck_require__(3929);
 async function run() {
-    const platform = (0, platforms_1.getPlatform)();
+    const platform = await (0, platforms_1.getPlatform)();
     const arch = (0, platforms_1.getArch)();
     try {
         if (platform === undefined) {
@@ -95635,13 +95636,48 @@ function expandTilde(input) {
 /***/ }),
 
 /***/ 8361:
-/***/ ((__unused_webpack_module, exports) => {
+/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
 
 "use strict";
 
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
 Object.defineProperty(exports, "__esModule", ({ value: true }));
 exports.getArch = getArch;
 exports.getPlatform = getPlatform;
+const exec = __importStar(__nccwpck_require__(5236));
+const core = __importStar(__nccwpck_require__(7484));
 function getArch() {
     const arch = process.arch;
     const archMapping = {
@@ -95655,15 +95691,46 @@ function getArch() {
         return archMapping[arch];
     }
 }
-function getPlatform() {
+async function getPlatform() {
-    const platform = process.platform;
+    const processPlatform = process.platform;
     const platformMapping = {
         linux: "unknown-linux-gnu",
         darwin: "apple-darwin",
         win32: "pc-windows-msvc",
     };
-    if (platform in platformMapping) {
+    if (processPlatform in platformMapping) {
-        return platformMapping[platform];
+        const platform = platformMapping[processPlatform];
+        if (platform === "unknown-linux-gnu") {
+            const isMusl = await isMuslOs();
+            return isMusl ? "unknown-linux-musl" : platform;
+        }
+        return platform;
+    }
+}
+async function isMuslOs() {
+    let stdOutput = "";
+    let errOutput = "";
+    const options = {
+        silent: !core.isDebug(),
+        listeners: {
+            stdout: (data) => {
+                stdOutput += data.toString();
+            },
+            stderr: (data) => {
+                errOutput += data.toString();
+            },
+        },
+        ignoreReturnCode: true,
+    };
+    try {
+        const execArgs = ["--version"];
+        await exec.exec("ldd", execArgs, options);
+        return stdOutput.includes("musl") || errOutput.includes("musl");
+    }
+    catch (error) {
+        const err = error;
+        core.warning(`Failed to determine glibc or musl. Falling back to glibc. Error: ${err.message}`);
+        return false;
     }
 }
 

src/cache/restore-cache.ts

@@ -53,7 +53,8 @@ async function computeKeys(): Promise<string> {
   }
   const suffix = cacheSuffix ? `-${cacheSuffix}` : "";
   const pythonVersion = await getPythonVersion();
-  return `setup-uv-${CACHE_VERSION}-${getArch()}-${getPlatform()}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
+  const platform = await getPlatform();
+  return `setup-uv-${CACHE_VERSION}-${getArch()}-${platform}-${pythonVersion}${cacheDependencyPathHash}${suffix}`;
 }
 
 async function getPythonVersion(): Promise<string> {

src/setup-uv.ts

@@ -30,7 +30,7 @@ import fs from "node:fs";
 import { getUvVersionFromConfigFile } from "./utils/pyproject";
 
 async function run(): Promise<void> {
-  const platform = getPlatform();
+  const platform = await getPlatform();
   const arch = getArch();
 
   try {

src/utils/platforms.ts

@@ -1,3 +1,5 @@
+import * as exec from "@actions/exec";
+import * as core from "@actions/core";
 export type Platform =
   | "unknown-linux-gnu"
   | "unknown-linux-musl"
@@ -26,15 +28,49 @@ export function getArch(): Architecture | undefined {
   }
 }
 
-export function getPlatform(): Platform | undefined {
+export async function getPlatform(): Promise<Platform | undefined> {
-  const platform = process.platform;
+  const processPlatform = process.platform;
   const platformMapping: { [key: string]: Platform } = {
     linux: "unknown-linux-gnu",
     darwin: "apple-darwin",
     win32: "pc-windows-msvc",
   };
 
-  if (platform in platformMapping) {
+  if (processPlatform in platformMapping) {
-    return platformMapping[platform];
+    const platform = platformMapping[processPlatform];
+    if (platform === "unknown-linux-gnu") {
+      const isMusl = await isMuslOs();
+      return isMusl ? "unknown-linux-musl" : platform;
+    }
+    return platform;
+  }
+}
+
+async function isMuslOs(): Promise<boolean> {
+  let stdOutput = "";
+  let errOutput = "";
+  const options: exec.ExecOptions = {
+    silent: !core.isDebug(),
+    listeners: {
+      stdout: (data: Buffer) => {
+        stdOutput += data.toString();
+      },
+      stderr: (data: Buffer) => {
+        errOutput += data.toString();
+      },
+    },
+    ignoreReturnCode: true,
+  };
+
+  try {
+    const execArgs = ["--version"];
+    await exec.exec("ldd", execArgs, options);
+    return stdOutput.includes("musl") || errOutput.includes("musl");
+  } catch (error) {
+    const err = error as Error;
+    core.warning(
+      `Failed to determine glibc or musl. Falling back to glibc. Error: ${err.message}`,
+    );
+    return false;
   }
 }