99 lines
2.5 KiB
JavaScript
99 lines
2.5 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
var path = require("path");
|
||
|
|
var micromatch = require("micromatch");
|
||
|
|
var utils = require("./public-utils");
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param emitter
|
||
|
|
* @returns {Function}
|
||
|
|
*/
|
||
|
|
module.exports = function (emitter) {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return a transform/through stream that listens to file
|
||
|
|
* paths and fires internal Browsersync events.
|
||
|
|
* @param {{once: boolean, match: string|array}} [opts]
|
||
|
|
* @returns {Stream.Transform}
|
||
|
|
*/
|
||
|
|
function browserSyncThroughStream (opts) {
|
||
|
|
|
||
|
|
opts = opts || {};
|
||
|
|
var emitted = false;
|
||
|
|
var Transform = require("stream").Transform;
|
||
|
|
var reload = new Transform({objectMode: true});
|
||
|
|
var changed = [];
|
||
|
|
|
||
|
|
reload._transform = function (file, encoding, next) {
|
||
|
|
|
||
|
|
var stream = this;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* End is always called to send the current file down
|
||
|
|
* stream. Browsersync never acts upon a stream,
|
||
|
|
* we only `listen` to it.
|
||
|
|
*/
|
||
|
|
function end () {
|
||
|
|
stream.push(file); // always send the file down-stream
|
||
|
|
next();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If {match: <pattern>} was provided, test the
|
||
|
|
* current filepath against it
|
||
|
|
*/
|
||
|
|
if (opts.match) {
|
||
|
|
if (!micromatch(file.path, opts.match, {dot: true}).length) {
|
||
|
|
return end();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* if {once: true} provided, emit the reload event for the
|
||
|
|
* first file only
|
||
|
|
*/
|
||
|
|
if (opts.once === true && !emitted) {
|
||
|
|
|
||
|
|
utils.emitBrowserReload(emitter);
|
||
|
|
|
||
|
|
emitted = true;
|
||
|
|
|
||
|
|
} else { // handle multiple
|
||
|
|
|
||
|
|
if (opts.once === true && emitted) {
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
if (file.path) {
|
||
|
|
|
||
|
|
emitted = true;
|
||
|
|
utils.emitChangeEvent(emitter, file.path, false);
|
||
|
|
changed.push(path.basename(file.path));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
end();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* When this current operation has finished, emit the
|
||
|
|
* steam:changed event so that any loggers can pick up it
|
||
|
|
* @param next
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
reload._flush = function (next) {
|
||
|
|
|
||
|
|
if (changed.length) {
|
||
|
|
utils.emitStreamChangedEvent(emitter, changed);
|
||
|
|
}
|
||
|
|
|
||
|
|
next();
|
||
|
|
};
|
||
|
|
|
||
|
|
return reload;
|
||
|
|
}
|
||
|
|
|
||
|
|
return browserSyncThroughStream;
|
||
|
|
};
|