added config parameter 'initialscan' to suppress initial 'add' events

This commit is contained in:
Daniel Sommer 2022-06-02 16:36:27 +02:00
parent 13f5ef0ede
commit 83a4f9b8e8
2 changed files with 50 additions and 3 deletions

View file

@ -1,5 +1,6 @@
const path = require('path');
const chokidar = require('chokidar');
const { open, writeFile } = require('fs/promises');
class Watcher {
@ -7,17 +8,27 @@ class Watcher {
this.#initialize();
}
#initialize() {
async #initialize() {
if (config?.library === undefined) {
throw new Error('library not defined');
}
if (config?.library?.sources === undefined || config?.library?.sources.length === 0) {
throw new Error('no library sources defined');
}
let initialScan = config?.library?.initialscan?.enabled;
if (initialScan === undefined) {
initialScan = true;
}
for (let index = 0; index < config.library.sources.length; index++) {
const directory = path.resolve(config.library.sources[index]);
let ignoreInitial = !initialScan;
if (ignoreInitial === false) {
ignoreInitial = (new Date().getTime() - await this.#checkHiddenFile(directory)) < (config?.library?.initialscan?.maxage || 86400000);
}
logger.debug('watching directory \'' + directory + '\'...');
this.#handleEvents(chokidar.watch(directory));
this.#handleEvents(chokidar.watch(directory, {
ignoreInitial: ignoreInitial
}));
}
}
@ -35,6 +46,38 @@ class Watcher {
queue.add(constants.FS_EVENT_CHANGE, file, stats);
});
}
async #checkHiddenFile(directory) {
if (directory === undefined) {
return;
}
const hiddenFile = path.join(directory, '.kannon');
let filehandle;
try {
filehandle = await open(hiddenFile);
return (await filehandle.readFile()).toString();
} catch (error) {
if (error.code === 'ENOENT') {
return await this.#createHiddenFile(hiddenFile);
}
logger.error('encountered an error checking the hidden file \'' + hiddenFile + '\' > ' + error);
} finally {
filehandle?.close();
}
}
async #createHiddenFile(file) {
if (file === undefined) {
return;
}
const timestamp = new Date().getTime().toString();
try {
await writeFile(file, timestamp);
return timestamp;
} catch (error) {
logger.error('encountered an error writing the hidden file \'' + file + '\' > ' + error);
}
}
}
module.exports = Watcher;

View file

@ -22,7 +22,11 @@
"formats": [
"mp3",
"flac"
]
],
"initialscan": {
"enabled": false,
"maxage": 3600000
}
},
"database": {
"dialect": "postgres",