Add option for post-processing command/script

src/lib/Video.ts

@@ -1,4 +1,4 @@
-import { execFile } from 'child_process';
+import { exec, execFile } from 'child_process';
 import { createWriteStream } from 'fs';
 import fs from 'fs/promises';
 
@@ -38,7 +38,7 @@ export default class Video {
 		this.thumbnail = video.thumbnail;
 	}
 
-	private get fullPath(): string {
+	private formatString(string: string): string {
 		const formatLookup: FilePathFormattingOptions = {
 			'%channelTitle%': this.channel.title,
 			'%episodeNumber%': this.channel.lookupVideoDB(this.guid).episodeNo.toString(),
@@ -51,12 +51,15 @@ export default class Video {
 			'%videoTitle%': this.title.replace(/ - /g, ' ').replace(/\//g, ' ').replace(/\\/g, ' '),
 		};
 
-		let fullPath = settings.filePathFormatting;
 		for (const [match, value] of Object.entries(formatLookup)) {
-			fullPath = fullPath.replace(new RegExp(match, 'g'), value);
+			string = string.replace(new RegExp(match, 'g'), value);
 		}
 
-		return fullPath;
+		return string;
+	}
+
+	private get fullPath(): string {
+		return this.formatString(settings.filePathFormatting);
 	}
 
 	private get folderPath(): string {
@@ -193,8 +196,21 @@ export default class Video {
 		);
 		this.expectedSize = await this.muxedBytes();
 		await this.markCompleted();
+		await this.postProcessingCommand();
 		await fs.unlink(`${this.filePath}.partial`);
 		// Set the files update time to when the video was released
 		await fs.utimes(`${this.filePath}.mp4`, new Date(), this.releaseDate);
 	}
+
+	public async postProcessingCommand(): Promise<void> {
+		const command = this.formatString(settings.postProcessingCommand);
+		await new Promise((resolve, reject) =>
+			exec(command,
+				(error, stdout) => {
+					if (error !== null) reject(error);
+					else resolve(stdout);
+				}
+			)
+		);
+	}
 }

src/lib/defaults.ts

@@ -174,4 +174,5 @@ export const defaultSettings: Settings = {
 		'ltt supporter plus': 'Linus Tech Tips',
 	},
 	subscriptions: {},
+	postProcessingCommand: '',
 };

src/lib/types.ts

@@ -86,4 +86,5 @@ export type Settings = {
 		[key: string]: SubscriptionSettings;
 	};
 	plex: PlexSettings;
+	postProcessingCommand: string;
 };

wiki/settings.md

@@ -122,6 +122,17 @@ Added for Kodi support as Kodi looks for artwork in the format `VideoName-thumb.
 
 <br>
 
+**postProcessingCommand**:<br>
+A command to run after a video has sucessfully downloaded.<br>
+You can refer to `_filePathFormattingOPTIONS` for options on what can be used.<br>
+Strings surounded by % will be replaced with their respective values.<br>
+
+```json
+"postProcessingCommand": ""
+```
+
+<br>
+
 ## Plex
 
 Use **quickstartPrompts** to easily set plex settings.