snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

web/tests/lib/handlebars.cjs

@@ -0,0 +1,51 @@
+"use strict";
+
+const fs = require("node:fs");
+const path = require("node:path");
+
+const Handlebars = require("handlebars");
+const {SourceMapConsumer, SourceNode} = require("source-map");
+
+const hb = Handlebars.create();
+
+class ZJavaScriptCompiler extends hb.JavaScriptCompiler {
+    nameLookup(parent, name, type) {
+        // Auto-register partials with relative paths, like handlebars-loader.
+        if (type === "partial" && name !== "@partial-block") {
+            const filename = path.resolve(path.dirname(this.options.srcName), name + ".hbs");
+            return ["require(", JSON.stringify(filename), ")"];
+        }
+        return super.nameLookup(parent, name, type);
+    }
+}
+
+ZJavaScriptCompiler.prototype.compiler = ZJavaScriptCompiler;
+hb.JavaScriptCompiler = ZJavaScriptCompiler;
+
+function compile_hbs(module, filename) {
+    const code = fs.readFileSync(filename, "utf8");
+    const pc = hb.precompile(code, {
+        preventIndent: true,
+        srcName: filename,
+        strict: true,
+        explicitPartialContext: true,
+    });
+    const node = new SourceNode();
+    node.add([
+        'const Handlebars = require("handlebars/runtime.js");\n',
+        "module.exports = Handlebars.template(",
+        SourceNode.fromStringWithSourceMap(pc.code, new SourceMapConsumer(pc.map)),
+        ");\n",
+    ]);
+    const out = node.toStringWithSourceMap();
+    module._compile(
+        out.code +
+            "\n//# sourceMappingURL=data:application/json;charset=utf-8;base64," +
+            Buffer.from(out.map.toString()).toString("base64"),
+        filename,
+    );
+}
+
+exports.hook_require = () => {
+    require.extensions[".hbs"] = compile_hbs;
+};