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build(gulp): watcher should not trigger more than once during init 

Closes #2037
This commit is contained in:
Igor Minar 2015-05-20 09:33:13 -07:00
parent f6eeb9aa66
commit 1054f6a9ab
1 changed files with 12 additions and 3 deletions
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15
tools/build/watch.js
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@ -12,8 +12,7 @@ function watch(globs, opts, tasks) {
var useRunSequence = typeof tasks !== 'function';
var runTasks;
function noop() {}
var log = typeof opts.log === 'function' ? opts.log : noop;
var log = typeof opts.log === 'function' ? opts.log : function noop() {};
if (useRunSequence) {
if (!Array.isArray(tasks)) tasks = [tasks];
@ -35,7 +34,13 @@ function watch(globs, opts, tasks) {
}
var events = opts.events = opts.events || ['add', 'change', 'unlink'];
if (opts.ignoreInitial === undefined) opts.ignoreInitial = true;
// Don't let chokidar call us while initializing because on large trees it might take too long for
// all the add events to be emitted which causes the initial callback to be triggered more than
// once. Instead, we call handleEvent directly.
var ignoreInitial = opts.ignoreInitial;
opts.ignoreInitial = true;
var delay = opts.delay;
if (delay === undefined) delay = 100;
@ -54,6 +59,10 @@ function watch(globs, opts, tasks) {
var eventsRecorded = 0; // Number of events recorded
var timeoutId = null; // If non-null, event capture window is open
if (!ignoreInitial) {
handleEvent('change', 'madeupFilePath'); // synthetic event to kick off the first task run
}
return watcher;
function handleEvent(event, filepath) {