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import { TemplatePath } from "@11ty/eleventy-utils";
import PathNormalizer from "./Util/PathNormalizer.js";
/* Decides when to watch and in what mode to watch
* Incremental builds don’t batch changes, they queue.
* Nonincremental builds batch.
*/
class EleventyWatch {
constructor() {
this.incremental = false;
this.isActive = false;
this.activeQueue = [];
}
isBuildRunning() {
return this.isActive;
}
setBuildRunning() {
this.isActive = true;
// pop waiting queue into the active queue
this.activeQueue = this.popNextActiveQueue();
}
setBuildFinished() {
this.isActive = false;
this.activeQueue = [];
}
getIncrementalFile() {
if (this.incremental) {
return this.activeQueue.length ? this.activeQueue[0] : false;
}
return false;
}
/* Returns the changed files currently being operated on in the current `watch` build
* Works with or without incremental (though in incremental only one file per time will be processed)
*/
getActiveQueue() {
if (!this.isActive) {
return [];
} else if (this.incremental && this.activeQueue.length === 0) {
return [];
} else if (this.incremental) {
return [this.activeQueue[0]];
}
return this.activeQueue;
}
_queueMatches(file) {
let filterCallback;
if (typeof file === "function") {
filterCallback = file;
} else {
filterCallback = (path) => path === file;
}
return this.activeQueue.filter(filterCallback);
}
hasAllQueueFiles(file) {
return (
this.activeQueue.length > 0 && this.activeQueue.length === this._queueMatches(file).length
);
}
hasQueuedFile(file) {
if (file) {
return this._queueMatches(file).length > 0;
}
return false;
}
hasQueuedFiles(files) {
for (const file of files) {
if (this.hasQueuedFile(file)) {
return true;
}
}
return false;
}
get pendingQueue() {
if (!this._queue) {
this._queue = [];
}
return this._queue;
}
set pendingQueue(value) {
this._queue = value;
}
addToPendingQueue(path) {
if (path) {
path = PathNormalizer.normalizeSeperator(TemplatePath.addLeadingDotSlash(path));
this.pendingQueue.push(path);
}
}
getPendingQueueSize() {
return this.pendingQueue.length;
}
getPendingQueue() {
return this.pendingQueue;
}
getActiveQueueSize() {
return this.activeQueue.length;
}
// returns array
popNextActiveQueue() {
if (this.incremental) {
return this.pendingQueue.length ? [this.pendingQueue.shift()] : [];
}
let ret = this.pendingQueue.slice();
this.pendingQueue = [];
return ret;
}
}
export default EleventyWatch;
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