feat(#199): bru cli updates to load .env vars

packages/bruno-cli/src/runner/interpolate-vars.js

@@ -1,24 +1,51 @@
-const Mustache = require('mustache');
-const { each, forOwn } = require('lodash');
+const Handlebars = require('handlebars');
+const { each, forOwn, cloneDeep } = require('lodash');
 
-// override the default escape function to prevent escaping
-Mustache.escape = function (value) {
-  return value;
+const interpolateEnvVars = (str, processEnvVars) => {
+  if (!str || !str.length || typeof str !== 'string') {
+    return str;
+  }
+
+  const template = Handlebars.compile(str, { noEscape: true });
+
+  return template({
+    process: {
+      env: {
+        ...processEnvVars
+      }
+    }
+  });
 };
 
-const interpolateVars = (request, envVars = {}, collectionVariables = {}) => {
+const interpolateVars = (request, envVars = {}, collectionVariables = {}, processEnvVars = {}) => {
+  // we clone envVars because we don't want to modify the original object
+  envVars = cloneDeep(envVars);
+
+  // envVars can inturn have values as {{process.env.VAR_NAME}}
+  // so we need to interpolate envVars first with processEnvVars
+  forOwn(envVars, (value, key) => {
+    envVars[key] = interpolateEnvVars(value, processEnvVars);
+  });
+
   const interpolate = (str) => {
     if (!str || !str.length || typeof str !== 'string') {
       return str;
     }
 
+    const template = Handlebars.compile(str, { noEscape: true });
+
     // collectionVariables take precedence over envVars
     const combinedVars = {
       ...envVars,
-      ...collectionVariables
+      ...collectionVariables,
+      process: {
+        env: {
+          ...processEnvVars
+        }
+      }
     };
 
-    return Mustache.render(str, combinedVars);
+    return template(combinedVars);
   };
 
   request.url = interpolate(request.url);

packages/bruno-cli/src/runner/run-single-request.js

@@ -11,7 +11,14 @@ const { ScriptRuntime, TestRuntime, VarsRuntime, AssertRuntime } = require('@use
 const { stripExtension } = require('../utils/filesystem');
 const { getOptions } = require('../utils/bru');
 
-const runSingleRequest = async function (filename, bruJson, collectionPath, collectionVariables, envVariables) {
+const runSingleRequest = async function (
+  filename,
+  bruJson,
+  collectionPath,
+  collectionVariables,
+  envVariables,
+  processEnvVars
+) {
   let request;
 
   try {
@@ -49,7 +56,7 @@ const runSingleRequest = async function (filename, bruJson, collectionPath, coll
     }
 
     // interpolate variables inside request
-    interpolateVars(request, envVariables, collectionVariables);
+    interpolateVars(request, envVariables, collectionVariables, processEnvVars);
 
     const options = getOptions();
     const insecure = get(options, 'insecure', false);