1 files changed, 68 insertions, 0 deletions

diff --git a/scripts/regenerate-thumbnails.ts b/scripts/regenerate-thumbnails.ts
new file mode 100644
index 000000000..b95343c0b
--- /dev/null
+++ b/scripts/regenerate-thumbnails.ts
@@ -0,0 +1,68 @@
+import { registerTSPaths } from '../server/helpers/register-ts-paths'
+registerTSPaths()
+
+import * as Bluebird from 'bluebird'
+import * as program from 'commander'
+import { pathExists, remove } from 'fs-extra'
+import { generateImageFilename, processImage } from '@server/helpers/image-utils'
+import { THUMBNAILS_SIZE } from '@server/initializers/constants'
+import { VideoModel } from '@server/models/video/video'
+import { MVideo } from '@server/types/models'
+import { initDatabaseModels } from '@server/initializers/database'
+
+program
+  .description('Regenerate local thumbnails using preview files')
+  .parse(process.argv)
+
+run()
+  .then(() => process.exit(0))
+  .catch(err => console.error(err))
+
+async function run () {
+  await initDatabaseModels(true)
+
+  const videos = await VideoModel.listLocal()
+
+  await Bluebird.map(videos, v => {
+    return processVideo(v)
+      .catch(err => console.error('Cannot process video %s.', v.url, err))
+  }, { concurrency: 20 })
+}
+
+async function processVideo (videoArg: MVideo) {
+  const video = await VideoModel.loadWithFiles(videoArg.id)
+
+  console.log('Processing video %s.', video.name)
+
+  const thumbnail = video.getMiniature()
+  const preview = video.getPreview()
+
+  const previewPath = preview.getPath()
+
+  if (!await pathExists(previewPath)) {
+    throw new Error(`Preview ${previewPath} does not exist on disk`)
+  }
+
+  const size = {
+    width: THUMBNAILS_SIZE.width,
+    height: THUMBNAILS_SIZE.height
+  }
+
+  const oldPath = thumbnail.getPath()
+
+  // Update thumbnail
+  thumbnail.filename = generateImageFilename()
+  thumbnail.width = size.width
+  thumbnail.height = size.height
+
+  const thumbnailPath = thumbnail.getPath()
+  await processImage(previewPath, thumbnailPath, size, true)
+
+  // Save new attributes
+  await thumbnail.save()
+
+  // Remove old thumbnail
+  await remove(oldPath)
+
+  // Don't federate, remote instances will refresh the thumbnails after a while
+}