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Update:Lock file update scans from watcher and queue file updates so that 2 watcher scans never occur simultaneously #906

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advplyr 2022-08-31 17:39:02 -05:00
parent a73b72a07b
commit 7e05804bcf
1 changed files with 21 additions and 1 deletions
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22
server/scanner/Scanner.js
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@ -28,6 +28,10 @@ class Scanner {
this.cancelLibraryScan = {}
this.librariesScanning = []
// Watcher file update scan vars
this.pendingFileUpdatesToScan = []
this.scanningFilesChanged = false
this.bookFinder = new BookFinder()
}
@ -494,7 +498,16 @@ class Scanner {
}
async scanFilesChanged(fileUpdates) {
if (!fileUpdates.length) return
if (!fileUpdates || !fileUpdates.length) return
// If already scanning files from watcher then add these updates to queue
if (this.scanningFilesChanged) {
this.pendingFileUpdatesToScan.push(fileUpdates)
Logger.debug(`[Scanner] Already scanning files from watcher - file updates pushed to queue (size ${this.pendingFileUpdatesToScan.length})`)
return
}
this.scanningFilesChanged = true
// files grouped by folder
var folderGroups = this.getFileUpdatesGrouped(fileUpdates)
@ -520,6 +533,13 @@ class Scanner {
var folderScanResults = await this.scanFolderUpdates(library, folder, fileUpdateGroup)
Logger.debug(`[Scanner] Folder scan results`, folderScanResults)
}
this.scanningFilesChanged = false
if (this.pendingFileUpdatesToScan.length) {
Logger.debug(`[Scanner] File updates finished scanning with more updates in queue (${this.pendingFileUpdatesToScan.length})`)
this.scanFilesChanged(this.pendingFileUpdatesToScan.shift())
}
}
async scanFolderUpdates(library, folder, fileUpdateGroup) {