set basic layout. adding status bar

node_modules/bower/lib/renderers/JsonRenderer.js

@@ -0,0 +1,136 @@
+var chalk = require('chalk');
+var Q = require('q');
+var promptly = require('promptly');
+var createError = require('../util/createError');
+
+function JsonRenderer() {
+    this._nrLogs = 0;
+}
+
+JsonRenderer.prototype.end = function(data) {
+    if (this._nrLogs) {
+        process.stderr.write(']\n');
+    }
+
+    if (data) {
+        process.stdout.write(this._stringify(data) + '\n');
+    }
+};
+
+JsonRenderer.prototype.error = function(err) {
+    var message = err.message;
+    var stack;
+
+    err.id = err.code || 'error';
+    err.level = 'error';
+    err.data = err.data || {};
+
+    // Need to set message again because it is
+    // not enumerable in some cases
+    delete err.message;
+    err.message = message;
+
+    // Stack
+    stack = err.fstream_stack || err.stack || 'N/A';
+    err.stacktrace = Array.isArray(stack) ? stack.join('\n') : stack;
+
+    this.log(err);
+    this.end();
+};
+
+JsonRenderer.prototype.log = function(log) {
+    if (!this._nrLogs) {
+        process.stderr.write('[');
+    } else {
+        process.stderr.write(', ');
+    }
+
+    process.stderr.write(this._stringify(log));
+    this._nrLogs++;
+};
+
+JsonRenderer.prototype.prompt = function(prompts) {
+    var promise = Q.resolve();
+    var answers = {};
+    var that = this;
+
+    prompts.forEach(function(prompt) {
+        var opts;
+        var funcName;
+
+        // Strip colors
+        prompt.message = chalk.stripColor(prompt.message);
+
+        // Prompt
+        opts = {
+            silent: true, // To not mess with JSON output
+            trim: false, // To allow " " to not assume the default value
+            default: prompt.default == null ? '' : prompt.default, // If default is null, make it '' so that it does not retry
+            validator: !prompt.validate
+                ? null
+                : function(value) {
+                    var ret = prompt.validate(value);
+
+                    if (typeof ret === 'string') {
+                        throw ret;
+                    }
+
+                    return value;
+                }
+        };
+
+        // For now only "input", "confirm" and "password" are supported
+        switch (prompt.type) {
+        case 'input':
+            funcName = 'prompt';
+            break;
+        case 'confirm':
+        case 'password':
+            funcName = prompt.type;
+            break;
+        case 'checkbox':
+            funcName = 'prompt';
+            break;
+        default:
+            promise = promise.then(function() {
+                throw createError('Unknown prompt type', 'ENOTSUP');
+            });
+            return;
+        }
+
+        promise = promise.then(function() {
+            // Log
+            prompt.level = 'prompt';
+            that.log(prompt);
+
+            return Q.nfcall(promptly[funcName], '', opts).then(function(
+                answer
+            ) {
+                answers[prompt.name] = answer;
+            });
+        });
+
+        if (prompt.type === 'checkbox') {
+            promise = promise.then(function() {
+                answers[prompt.name] = answers[prompt.name].split(',');
+            });
+        }
+    });
+
+    return promise.then(function() {
+        return answers;
+    });
+};
+
+// -------------------------
+
+JsonRenderer.prototype._stringify = function(log) {
+    // To json
+    var str = JSON.stringify(log, null, '  ');
+    // Remove colors in case some log has colors..
+    str = chalk.stripColor(str);
+
+    return str;
+};
+
+module.exports = JsonRenderer;