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Added debug.component.js build

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1 parent fd3ad21 commit ab28fa8f0a124ddc3eb50e96e4874b5d7f8fd661 @tj tj committed May 4, 2012
Showing with 127 additions and 3 deletions.
  1. +2 −3 Makefile
  2. +120 −0 debug.component.js
  3. +1 −0 head.js
  4. +4 −0 tail.js
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@@ -1,5 +1,4 @@
-test:
- @echo "populate me"
+debug.component.js: head.js debug.js tail.js
+ cat $^ > $@
-.PHONY: test
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+;(function(){
+
+/**
+ * Create a debugger with the given `name`.
+ *
+ * @param {String} name
+ * @return {Type}
+ * @api public
+ */
+
+function debug(name) {
+ if (!debug.enabled(name)) return function(){};
+
+ return function(fmt){
+ var curr = new Date;
+ var ms = curr - (debug[name] || curr);
+ debug[name] = curr;
+
+ fmt = name
+ + ' '
+ + fmt
+ + ' +' + debug.humanize(ms);
+
+ // This hackery is required for IE8
+ // where `console.log` doesn't have 'apply'
+ window.console
+ && console.log
+ && Function.prototype.apply.call(console.log, console, arguments);
+ }
+}
+
+/**
+ * The currently active debug mode names.
+ */
+
+debug.names = [];
+debug.skips = [];
+
+/**
+ * Enables a debug mode by name. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} name
+ * @api public
+ */
+
+debug.enable = function(name) {
+ localStorage.debug = name;
+
+ var split = (name || '').split(/[\s,]+/)
+ , len = split.length;
+
+ for (var i = 0; i < len; i++) {
+ name = split[i].replace('*', '.*?');
+ if (name[0] === '-') {
+ debug.skips.push(new RegExp('^' + name.substr(1) + '$'));
+ }
+ else {
+ debug.names.push(new RegExp('^' + name + '$'));
+ }
+ }
+};
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+debug.disable = function(){
+ debug.enable('');
+};
+
+/**
+ * Humanize the given `ms`.
+ *
+ * @param {Number} m
+ * @return {String}
+ * @api private
+ */
+
+debug.humanize = function(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';
+};
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+debug.enabled = function(name) {
+ for (var i = 0, len = debug.skips.length; i < len; i++) {
+ if (debug.skips[i].test(name)) {
+ return false;
+ }
+ }
+ for (var i = 0, len = debug.names.length; i < len; i++) {
+ if (debug.names[i].test(name)) {
+ return true;
+ }
+ }
+ return false;
+};
+
+// persist
+
+if (window.localStorage) debug.enable(localStorage.debug);
+ module.exports = debug;
+
+})();
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+;(function(){
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+
+ module.exports = debug;
+
+})();

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