initial commit

.gitignore

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+# Audio Files
+audio
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/

command-line/main.js

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+const child_process = require('child_process');
+
+// Requirements:
+// gstreamer: gst-launch-1.0
+// ffmpeg: ffmpeg
+
+// gstreamer = audio recording
+// see `pacmd list` for audio sources
+// -v for verbose output
+// $ gst-launch-1.0 -v pulsesrc device = "alsa_output.pci-0000_00_1f.3.analog-stereo.monitor" ! wavenc ! filesink location="output.wav"
+function start_recording() {
+    let device = 'alsa_output.pci-0000_00_1f.3.analog-stereo.monitor';
+    let output = 'output.wav';
+    let recording_process = child_process.spawn(
+        'gst-launch-1.0', [ '-v', 'pulsesrc', 'device', '=', device, '!', 'wavenc', '!', 'filesink', 'location', '=', output ]
+    );
+    return recording_process;
+}
+
+async function stop_recording() {
+    
+}
+
+// ffmpeg = file conversion (wav -> mp3)
+// $ ffmpeg -i output.wav -b:a 192k output.mp3
+// metadata can be added as follows
+// $ ffmpeg -i output.wav \
+//       -metadata title="Song Name" \
+//       -metadata author="Song Artist" \
+//       -metadata album="Song Album" \
+//       -b:a 192k output.mp3

logger/logger.js

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+const moment = require('moment');
+const colors = require('colors/safe');
+const util = require('util');
+
+function padCenter(x, p, n) {
+    x = '' + x;
+    let z = false;
+    while (x.length < n) {
+        if (z) {
+            z = false;
+            x = p + x;
+        } else {
+            z = true;
+            x = x + p;
+        }
+    }
+    return x;
+}
+
+function createLogger(name) {
+    let logger = {};
+    function colorize(level, text) {
+        let map = {
+            'error': colors.red,
+            'warn':  colors.yellow,
+            'info':  colors.green,
+            'debug': colors.blue,
+            'silly': colors.magenta,
+        };
+        if (level in map) {
+            return map[level](text);
+        } else {
+            return colors.bgWhite(text);
+        }
+    }
+    logger.log = function(level, message, data) {
+        let prefix = `[ ${colorize(level, padCenter(level, ' ', 5))} | ${padCenter(name, ' ', 6)} | ${moment().format('HH:mm:ss.SSS')} ]`;
+        let out = '';
+        if (message !== undefined && typeof message !== 'string') {
+            data = message;
+            message = null;
+        }
+        if (message) {
+            out += `${prefix}: ${message}`;
+        }
+        function handleData(data) {
+            if (data) {
+                if (typeof message === 'string') {
+                    out += '\n';
+                }
+                if (data instanceof Error) {
+                    if (data.stack) {
+                        out += `${prefix}# ${data.stack.split('\n').join(`\n${prefix}# `)}`;
+                    } else {
+                        out += `${prefix}# ${data.name}: ${data.message}`;
+                    }
+                } else {
+                    let s = util.inspect(data, { colors: true });
+                    s = s.split('\n').map(o => `${prefix}$ ${o}`).join('\n');
+                    out += s;
+                    //let s = `{${prettyjson.render(data).split('\n').map(o => '  ' + o).join('\n').substring(1)} }`;
+                    //out += `${prefix}$ ${s.split('\n').map(o => colors.italic(o)).join(`\n${prefix}$ `)}`;
+                }
+            }
+        }
+        if (Array.isArray(data)) {
+            data.forEach(handleData);
+        } else {
+            handleData(data);
+        }
+        console.log(out);
+    }
+    logger.error = (message, data) => { logger.log('error', message, data); };
+    logger.warn  = (message, data) => { logger.log('warn',  message, data); };
+    logger.info  = (message, data) => { logger.log('info',  message, data); };
+    logger.debug = (message, data) => { logger.log('debug', message, data); };
+    logger.silly = (message, data) => { logger.log('silly', message, data); };
+    return logger;
+}
+
+module.exports = createLogger;

logger/package-lock.json

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+{
+  "name": "logger",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "colors": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.3.3.tgz",
+      "integrity": "sha512-mmGt/1pZqYRjMxB1axhTo16/snVZ5krrKkcmMeVKxzECMMXoCgnvTPp10QgHfcbQZw8Dq2jMNG6je4JlWU0gWg=="
+    },
+    "moment": {
+      "version": "2.24.0",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
+      "integrity": "sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg=="
+    }
+  }
+}

logger/package.json

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+{
+  "name": "logger",
+  "version": "1.0.0",
+  "description": "",
+  "main": "logger.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "colors": "^1.3.3",
+    "moment": "^2.24.0"
+  }
+}