fix: make clear where more opts are in help (#1271)

doc/cli/help.txt

@@ -11,8 +11,6 @@
   -V, --verbose ............ show detail on what is causing restarts.
   -- <your args> ........... to tell nodemon stop slurping arguments.
 
-  More options are available under: nodemon --help options
-
   Note: if the script is omitted, nodemon will try to read "main" from
   package.json and without a nodemon.json, nodemon will monitor .js, .mjs, .coffee,
   and .litcoffee by default.
@@ -28,4 +26,4 @@
   $ nodemon --exec "make build" -e "styl hbs"
   $ nodemon app.js -- --config # pass config to app.js
 
-  For more details see https://github.com/remy/nodemon/
+  \x1B[1mAll options are documented under: \x1B[4mnodemon --help options\x1B[0m

lib/help/index.js

@@ -1,8 +1,11 @@
 var fs = require('fs');
 var path = require('path');
+const supportsColor = require('supports-color');
 
 module.exports = help;
 
+const highlight = supportsColor.stdout ? '\x1B\[$1m' : '';
+
 function help(item) {
   if (!item) {
     item = 'help';
@@ -17,8 +20,8 @@ function help(item) {
   try {
     var dir = path.join(__dirname, '..', '..', 'doc', 'cli', item + '.txt');
     var body = fs.readFileSync(dir, 'utf8');
-    return body;
+    return body.replace(/\\x1B\[(.)m/g, highlight);
   } catch (e) {
     return '"' + item + '" help can\'t be found';
   }
-}
+}

lib/utils/colour.js

@@ -18,13 +18,9 @@ colour.yellow = '\x1B[33m';
 colour.green = '\x1B[32m';
 colour.black = '\x1B[39m';
 
-var reStr = Object.keys(colour).map(function (key) {
-  return colour[key];
-}).join('|');
-
+var reStr = Object.keys(colour).map(key => colour[key]).join('|');
 var re = new RegExp(('(' + reStr + ')').replace(/\[/g, '\\['), 'g');
 
 colour.strip = strip;
 
-
-module.exports = colour;
+module.exports = colour;

package.json

@@ -60,6 +60,7 @@
     "minimatch": "^3.0.4",
     "pstree.remy": "^1.1.0",
     "semver": "^5.4.1",
+    "supports-color": "^5.2.0",
     "touch": "^3.1.0",
     "undefsafe": "^2.0.1",
     "update-notifier": "^2.3.0"