snapshot of https://github.com/excalidraw/excalidraw.git (master, 2026-09-16; blobs > 131072B omitted)

scripts/buildPackage.js

@@ -0,0 +1,129 @@
+const path = require("path");
+const fs = require("fs");
+const { pathToFileURL } = require("url");
+
+const { build } = require("esbuild");
+const { sassPlugin } = require("esbuild-sass-plugin");
+
+const { parseEnvVariables } = require("../packages/excalidraw/env.cjs");
+
+const ENV_VARS = {
+  development: {
+    ...parseEnvVariables(`${__dirname}/../.env.development`),
+    DEV: true,
+  },
+  production: {
+    ...parseEnvVariables(`${__dirname}/../.env.production`),
+    PROD: true,
+  },
+};
+
+// Resolve a relative path from the source file's directory
+const resolveRelativePath = (importPath, sourceFile) => {
+  const sourceDir = path.dirname(sourceFile);
+  const extensions = [".scss", ".css", ""];
+
+  for (const ext of extensions) {
+    const fullPath = path.resolve(sourceDir, importPath + ext);
+    if (fs.existsSync(fullPath)) {
+      return fullPath;
+    }
+    // Try with underscore prefix for partials
+    const partialPath = path.join(
+      path.dirname(fullPath),
+      `_${path.basename(fullPath)}`,
+    );
+    if (fs.existsSync(partialPath)) {
+      return partialPath;
+    }
+  }
+  return null;
+};
+
+// Precompile function to convert relative paths to absolute paths
+const precompile = (source, sourcePath) => {
+  // Match @use and @forward statements with relative paths
+  const importRegex = /(@use|@forward)\s+["'](\.[^"']+)["']/g;
+
+  return source.replace(importRegex, (match, directive, importPath) => {
+    const resolvedPath = resolveRelativePath(importPath, sourcePath);
+    if (resolvedPath) {
+      // Convert to file:// URL format for sass
+      const fileUrl = pathToFileURL(resolvedPath).href;
+      return `${directive} "${fileUrl}"`;
+    }
+    return match;
+  });
+};
+
+// excludes all external dependencies and bundles only the source code
+const getConfig = (outdir) => ({
+  outdir,
+  bundle: true,
+  splitting: true,
+  format: "esm",
+  packages: "external",
+  plugins: [
+    sassPlugin({
+      precompile,
+    }),
+  ],
+  target: "es2020",
+  assetNames: "[dir]/[name]",
+  chunkNames: "[dir]/[name]-[hash]",
+  alias: {
+    "@excalidraw/utils": path.resolve(__dirname, "../packages/utils/src"),
+  },
+  external: [
+    "@excalidraw/common",
+    "@excalidraw/element",
+    "@excalidraw/math",
+    "@excalidraw/fractional-indexing",
+  ],
+  loader: {
+    ".woff2": "file",
+  },
+});
+
+function buildDev(config) {
+  return build({
+    ...config,
+    sourcemap: true,
+    define: {
+      "import.meta.env": JSON.stringify(ENV_VARS.development),
+    },
+  });
+}
+
+function buildProd(config) {
+  return build({
+    ...config,
+    minify: true,
+    define: {
+      "import.meta.env": JSON.stringify(ENV_VARS.production),
+    },
+  });
+}
+
+const createESMRawBuild = async () => {
+  const chunksConfig = {
+    entryPoints: ["index.tsx", "**/*.chunk.ts"],
+    entryNames: "[name]",
+  };
+
+  // development unminified build with source maps
+  await buildDev({
+    ...getConfig("dist/dev"),
+    ...chunksConfig,
+  });
+
+  // production minified buld without sourcemaps
+  await buildProd({
+    ...getConfig("dist/prod"),
+    ...chunksConfig,
+  });
+};
+
+(async () => {
+  await createESMRawBuild();
+})();