Pushing changes

node_modules/debug/lib/debug.js

@@ -0,0 +1,147 @@
+/**
+ * Module dependencies.
+ */
+
+var tty = require('tty');
+
+/**
+ * Expose `debug()` as the module.
+ */
+
+module.exports = debug;
+
+/**
+ * Enabled debuggers.
+ */
+
+var names = []
+  , skips = [];
+
+(process.env.DEBUG || '')
+  .split(/[\s,]+/)
+  .forEach(function(name){
+    name = name.replace('*', '.*?');
+    if (name[0] === '-') {
+      skips.push(new RegExp('^' + name.substr(1) + '$'));
+    } else {
+      names.push(new RegExp('^' + name + '$'));
+    }
+  });
+
+/**
+ * Colors.
+ */
+
+var colors = [6, 2, 3, 4, 5, 1];
+
+/**
+ * Previous debug() call.
+ */
+
+var prev = {};
+
+/**
+ * Previously assigned color.
+ */
+
+var prevColor = 0;
+
+/**
+ * Is stdout a TTY? Colored output is disabled when `true`.
+ */
+
+var isatty = tty.isatty(2);
+
+/**
+ * Select a color.
+ *
+ * @return {Number}
+ * @api private
+ */
+
+function color() {
+  return colors[prevColor++ % colors.length];
+}
+
+/**
+ * Humanize the given `ms`.
+ *
+ * @param {Number} m
+ * @return {String}
+ * @api private
+ */
+
+function humanize(ms) {
+  var sec = 1000
+    , min = 60 * 1000
+    , hour = 60 * min;
+
+  if (ms >= hour) return (ms / hour).toFixed(1) + 'h';
+  if (ms >= min) return (ms / min).toFixed(1) + 'm';
+  if (ms >= sec) return (ms / sec | 0) + 's';
+  return ms + 'ms';
+}
+
+/**
+ * Create a debugger with the given `name`.
+ *
+ * @param {String} name
+ * @return {Type}
+ * @api public
+ */
+
+function debug(name) {
+  function disabled(){}
+  disabled.enabled = false;
+
+  var match = skips.some(function(re){
+    return re.test(name);
+  });
+
+  if (match) return disabled;
+
+  match = names.some(function(re){
+    return re.test(name);
+  });
+
+  if (!match) return disabled;
+  var c = color();
+
+  function colored(fmt) {
+    fmt = coerce(fmt);
+
+    var curr = new Date;
+    var ms = curr - (prev[name] || curr);
+    prev[name] = curr;
+
+    fmt = '  \u001b[9' + c + 'm' + name + ' '
+      + '\u001b[3' + c + 'm\u001b[90m'
+      + fmt + '\u001b[3' + c + 'm'
+      + ' +' + humanize(ms) + '\u001b[0m';
+
+    console.error.apply(this, arguments);
+  }
+
+  function plain(fmt) {
+    fmt = coerce(fmt);
+
+    fmt = new Date().toUTCString()
+      + ' ' + name + ' ' + fmt;
+    console.error.apply(this, arguments);
+  }
+
+  colored.enabled = plain.enabled = true;
+
+  return isatty || process.env.DEBUG_COLORS
+    ? colored
+    : plain;
+}
+
+/**
+ * Coerce `val`.
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}