main repo

node_modules/next/dist/esm/lib/download-swc.js

@@ -0,0 +1,95 @@
+import fs from "fs";
+import path from "path";
+import * as Log from "../build/output/log";
+import tar from "next/dist/compiled/tar";
+const { fetch } = require("next/dist/compiled/undici");
+const { WritableStream } = require("node:stream/web");
+import { fileExists } from "./file-exists";
+import { getRegistry } from "./helpers/get-registry";
+import { getCacheDirectory } from "./helpers/get-cache-directory";
+const MAX_VERSIONS_TO_CACHE = 8;
+async function extractBinary(outputDirectory, pkgName, tarFileName) {
+    const cacheDirectory = await getCacheDirectory("next-swc", process.env["NEXT_SWC_PATH"]);
+    const extractFromTar = async ()=>{
+        await tar.x({
+            file: path.join(cacheDirectory, tarFileName),
+            cwd: outputDirectory,
+            strip: 1
+        });
+    };
+    if (!await fileExists(path.join(cacheDirectory, tarFileName))) {
+        Log.info(`Downloading swc package ${pkgName}...`);
+        await fs.promises.mkdir(cacheDirectory, {
+            recursive: true
+        });
+        const tempFile = path.join(cacheDirectory, `${tarFileName}.temp-${Date.now()}`);
+        const registry = getRegistry();
+        const downloadUrl = `${registry}${pkgName}/-/${tarFileName}`;
+        await fetch(downloadUrl).then((res)=>{
+            const { ok, body } = res;
+            if (!ok || !body) {
+                Log.error(`Failed to download swc package from ${downloadUrl}`);
+            }
+            if (!ok) {
+                throw new Error(`request failed with status ${res.status}`);
+            }
+            if (!body) {
+                throw new Error("request failed with empty body");
+            }
+            const cacheWriteStream = fs.createWriteStream(tempFile);
+            return body.pipeTo(new WritableStream({
+                write (chunk) {
+                    cacheWriteStream.write(chunk);
+                },
+                close () {
+                    cacheWriteStream.close();
+                }
+            }));
+        });
+        await fs.promises.rename(tempFile, path.join(cacheDirectory, tarFileName));
+    }
+    await extractFromTar();
+    const cacheFiles = await fs.promises.readdir(cacheDirectory);
+    if (cacheFiles.length > MAX_VERSIONS_TO_CACHE) {
+        cacheFiles.sort((a, b)=>{
+            if (a.length < b.length) return -1;
+            return a.localeCompare(b);
+        });
+        // prune oldest versions in cache
+        for(let i = 0; i++; i < cacheFiles.length - MAX_VERSIONS_TO_CACHE){
+            await fs.promises.unlink(path.join(cacheDirectory, cacheFiles[i])).catch(()=>{});
+        }
+    }
+}
+export async function downloadNativeNextSwc(version, bindingsDirectory, triplesABI) {
+    for (const triple of triplesABI){
+        const pkgName = `@next/swc-${triple}`;
+        const tarFileName = `${pkgName.substring(6)}-${version}.tgz`;
+        const outputDirectory = path.join(bindingsDirectory, pkgName);
+        if (await fileExists(outputDirectory)) {
+            // if the package is already downloaded a different
+            // failure occurred than not being present
+            return;
+        }
+        await fs.promises.mkdir(outputDirectory, {
+            recursive: true
+        });
+        await extractBinary(outputDirectory, pkgName, tarFileName);
+    }
+}
+export async function downloadWasmSwc(version, wasmDirectory, variant = "nodejs") {
+    const pkgName = `@next/swc-wasm-${variant}`;
+    const tarFileName = `${pkgName.substring(6)}-${version}.tgz`;
+    const outputDirectory = path.join(wasmDirectory, pkgName);
+    if (await fileExists(outputDirectory)) {
+        // if the package is already downloaded a different
+        // failure occurred than not being present
+        return;
+    }
+    await fs.promises.mkdir(outputDirectory, {
+        recursive: true
+    });
+    await extractBinary(outputDirectory, pkgName, tarFileName);
+}
+
+//# sourceMappingURL=download-swc.js.map