2 files changed, 78 insertions, 4 deletions

diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index b9d90b2bd..3dc178b11 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -14,7 +14,7 @@ import { CONFIG, registerConfigChangedHandler } from './config'
 
 // ---------------------------------------------------------------------------
 
-const LAST_MIGRATION_VERSION = 415
+const LAST_MIGRATION_VERSION = 420
 
 // ---------------------------------------------------------------------------
 
@@ -498,6 +498,11 @@ const STATIC_DOWNLOAD_PATHS = {
   TORRENTS: '/download/torrents/',
   VIDEOS: '/download/videos/'
 }
+const LAZY_STATIC_PATHS = {
+  AVATARS: '/lazy-static/avatars/',
+  PREVIEWS: '/static/previews/',
+  VIDEO_CAPTIONS: '/static/video-captions/'
+}
 
 // Cache control
 let STATIC_MAX_AGE = {
@@ -536,9 +541,12 @@ const FILES_CACHE = {
   }
 }
 
-const CACHE = {
+const LRU_CACHE = {
   USER_TOKENS: {
-    MAX_SIZE: 10000
+    MAX_SIZE: 1000
+  },
+  AVATAR_STATIC: {
+    MAX_SIZE: 500
   }
 }
 
@@ -549,6 +557,10 @@ const MEMOIZE_TTL = {
   OVERVIEWS_SAMPLE: 1000 * 3600 * 4 // 4 hours
 }
 
+const QUEUE_CONCURRENCY = {
+  AVATAR_PROCESS_IMAGE: 3
+}
+
 const REDUNDANCY = {
   VIDEOS: {
     RANDOMIZED_FACTOR: 5
@@ -649,6 +661,7 @@ export {
   WEBSERVER,
   API_VERSION,
   PEERTUBE_VERSION,
+  LAZY_STATIC_PATHS,
   HLS_REDUNDANCY_DIRECTORY,
   P2P_MEDIA_LOADER_PEER_VERSION,
   AVATARS_SIZE,
@@ -695,11 +708,12 @@ export {
   VIDEO_PRIVACIES,
   VIDEO_LICENCES,
   VIDEO_STATES,
+  QUEUE_CONCURRENCY,
   VIDEO_RATE_TYPES,
   VIDEO_TRANSCODING_FPS,
   FFMPEG_NICE,
   VIDEO_ABUSE_STATES,
-  CACHE,
+  LRU_CACHE,
   JOB_REQUEST_TIMEOUT,
   USER_PASSWORD_RESET_LIFETIME,
   MEMOIZE_TTL,
diff --git a/server/initializers/migrations/0420-avatar-lazy.ts b/server/initializers/migrations/0420-avatar-lazy.ts
new file mode 100644
index 000000000..5fc57aac2
--- /dev/null
+++ b/server/initializers/migrations/0420-avatar-lazy.ts
@@ -0,0 +1,60 @@
+import * as Sequelize from 'sequelize'
+
+async function up (utils: {
+  transaction: Sequelize.Transaction,
+  queryInterface: Sequelize.QueryInterface,
+  sequelize: Sequelize.Sequelize,
+  db: any
+}): Promise<void> {
+  {
+    // We'll add a unique index on filename, so delete duplicates or PeerTube won't start
+    const query = 'DELETE FROM "avatar" s1 ' +
+      'USING (SELECT MIN(id) as id, filename FROM "avatar" GROUP BY "filename" HAVING COUNT(*) > 1) s2 ' +
+      'WHERE s1."filename" = s2."filename" AND s1.id <> s2.id'
+    await utils.sequelize.query(query)
+  }
+
+  {
+    const data = {
+      type: Sequelize.STRING,
+      allowNull: true,
+      defaultValue: null
+    }
+
+    await utils.queryInterface.addColumn('avatar', 'fileUrl', data)
+  }
+
+  {
+    const data = {
+      type: Sequelize.BOOLEAN,
+      allowNull: true,
+      defaultValue: null
+    }
+
+    await utils.queryInterface.addColumn('avatar', 'onDisk', data)
+  }
+
+  {
+    const query = 'UPDATE "avatar" SET "onDisk" = true;'
+    await utils.sequelize.query(query)
+  }
+
+  {
+    const data = {
+      type: Sequelize.BOOLEAN,
+      allowNull: false,
+      defaultValue: null
+    }
+
+    await utils.queryInterface.changeColumn('avatar', 'onDisk', data)
+  }
+}
+
+function down (options) {
+  throw new Error('Not implemented.')
+}
+
+export {
+  up,
+  down
+}