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Add media download service (part 1) #104

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merged 14 commits into from
Oct 9, 2024
Merged

Add media download service (part 1) #104

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34117b9
Introduce media download service (and associated types) - which fetch…
philmcmahon Oct 2, 2024
a524c85
Add new sqs queue for media download service
philmcmahon Oct 2, 2024
53c0794
Add media download api endpoint
philmcmahon Oct 2, 2024
c20592b
Simplify transcript sqs logic for translations
philmcmahon Oct 2, 2024
1331600
After uploading the file to s3, send an SQS message requesting a tran…
philmcmahon Oct 2, 2024
c663acf
media-download not media-downloader
philmcmahon Oct 3, 2024
99fc2db
Use a separate dead letter queue for the media download queue
philmcmahon Oct 9, 2024
3d39603
Remove phantomjs/ffmpeg dependencies
philmcmahon Oct 9, 2024
1a8ecf4
Log an error when failing to send sqs message.
philmcmahon Oct 9, 2024
322acaf
Use runSpawnCommand rather than zx for media download service
philmcmahon Oct 9, 2024
86ac652
Bump gu cdk and aws cdk versions
philmcmahon Oct 9, 2024
ecff3ce
Only hide stdout sometimes
philmcmahon Oct 9, 2024
a7f1e8e
Update package-lock
philmcmahon Oct 9, 2024
cc1248d
Explicitly depend on @guardian/eslint-config
philmcmahon Oct 9, 2024
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48 changes: 48 additions & 0 deletions packages/backend-common/src/process.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
import { spawn } from 'child_process';
import { logger } from './logging';
export interface ProcessResult {
code?: number;
stdout: string;
stderr: string;
}

export const runSpawnCommand = (
processName: string,
cmd: string,
args: ReadonlyArray<string>,
): Promise<ProcessResult> => {
return new Promise((resolve, reject) => {
const cp = spawn(cmd, args);
const stdout: string[] = [];
const stderr: string[] = [];
cp.stdout.on('data', (data) => {
stdout.push(data.toString());
});

cp.stderr.on('data', (data) => {
stderr.push(data.toString());
});

cp.on('error', (e) => {
stderr.push(e.toString());
});

cp.on('close', (code) => {
const result = {
stdout: stdout.join(''),
stderr: stderr.join(''),
code: code || undefined,
};
logger.info('Ignoring stdout to avoid logging sensitive data');
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Is it important not to log stdout when running yt-dlp?

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Good point, I've updated this ecff3ce

logger.info(`process ${processName} stderr: ${result.stderr}`);
if (code === 0) {
resolve(result);
} else {
logger.error(
`process ${processName} failed with code ${result.code} due to: ${result.stderr}`,
);
reject(result);
}
});
});
};
1 change: 0 additions & 1 deletion packages/media-download/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
"dependencies": {
"@guardian/transcription-service-common": "1.0.0",
"@guardian/transcription-service-backend-common": "1.0.0",
"zx": "8.1.8",
"@aws-sdk/lib-storage": "3.658.1"
},
"devDependencies": {
Expand Down
1 change: 1 addition & 0 deletions packages/media-download/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ const requestTranscription = async (
};

const main = async () => {
console.log('Starting media download service');
const config = await getConfig();

const s3Client = new S3Client({ region: config.aws.region });
Expand Down
12 changes: 9 additions & 3 deletions packages/media-download/src/yt-dlp.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import fs from 'node:fs';
import { $ } from 'zx';
import { runSpawnCommand } from '@guardian/transcription-service-backend-common/src/process';

export type MediaMetadata = {
title: string;
Expand All @@ -24,8 +24,14 @@ export const downloadMedia = async (
destinationDirectoryPath: string,
id: string,
) => {
const output =
await $`yt-dlp --write-info-json --no-clean-info-json --newline -o "${destinationDirectoryPath}/${id}" ${url}`;
const output = await runSpawnCommand('downloadMedia', 'yt-dlp', [
'--write-info-json',
'--no-clean-info-json',
'--newline',
'-o',
`${destinationDirectoryPath}/${id}`,
url,
]);
console.log(output);
const metadata = extractInfoJson(
`${destinationDirectoryPath}/${id}.info.json`,
Expand Down
49 changes: 1 addition & 48 deletions packages/worker/src/transcribe.ts
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Original file line number Diff line number Diff line change
@@ -1,17 +1,11 @@
import { spawn } from 'child_process';
import path from 'path';
import { readFile } from '@guardian/transcription-service-backend-common';
import { logger } from '@guardian/transcription-service-backend-common';
import {
LanguageCode,
languageCodes,
} from '@guardian/transcription-service-common';

interface ProcessResult {
code?: number;
stdout: string;
stderr: string;
}
import { runSpawnCommand } from '@guardian/transcription-service-backend-common/src/process';

interface FfmpegResult {
wavPath: string;
Expand Down Expand Up @@ -48,47 +42,6 @@ export type WhisperBaseParams = {

const CONTAINER_FOLDER = '/input';

const runSpawnCommand = (
processName: string,
cmd: string,
args: ReadonlyArray<string>,
): Promise<ProcessResult> => {
return new Promise((resolve, reject) => {
const cp = spawn(cmd, args);
const stdout: string[] = [];
const stderr: string[] = [];
cp.stdout.on('data', (data) => {
stdout.push(data.toString());
});

cp.stderr.on('data', (data) => {
stderr.push(data.toString());
});

cp.on('error', (e) => {
stderr.push(e.toString());
});

cp.on('close', (code) => {
const result = {
stdout: stdout.join(''),
stderr: stderr.join(''),
code: code || undefined,
};
logger.info('Ignoring stdout to avoid logging sensitive data');
logger.info(`process ${processName} stderr: ${result.stderr}`);
if (code === 0) {
resolve(result);
} else {
logger.error(
`process ${processName} failed with code ${result.code} due to: ${result.stderr}`,
);
reject(result);
}
});
});
};

export const getOrCreateContainer = async (
tempDir: string,
): Promise<string> => {
Expand Down
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