Add automated dev setup using Gitpod

.github/CONTRIBUTING.md

@@ -93,6 +93,12 @@ $ sudo -u postgres psql -c "CREATE EXTENSION unaccent;" peertube_dev
 
 In dev mode, administrator username is **root** and password is **test**.
 
+### Online development
+
+You can get a complete PeerTube development setup with Gitpod, a free one-click online IDE for GitHub:
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/Chocobozzz/PeerTube)
+
 ### Server side
 
 You can find a documentation of the server code/architecture [here](/support/doc/development/server/code.md).

.gitpod.yml

@@ -0,0 +1,16 @@
+image:
+  file: support/docker/gitpod/Dockerfile
+ports:
+- port: 3000
+  onOpen: open-preview
+- port: 5432
+  onOpen: ignore
+- port: 6379
+  onOpen: ignore
+- port: 9000
+  onOpen: ignore
+tasks:
+- command: redis-server
+- before: export NODE_CONFIG="{\"import\":{\"videos\":{\"torrent\":{\"enabled\":false}}},\"webserver\":{\"hostname\":\"$(gp url 3000 | cut -d/ -f3)\",\"port\":\"443\",\"https\":true}}"
+  init: yarn install --pure-lockfile
+  command: npm run dev

client/proxy.config.json

@@ -0,0 +1,10 @@
+{
+  "/api": {
+    "target": "http://localhost:9000",
+    "secure": false
+  },
+  "/static": {
+    "target": "http://localhost:9000",
+    "secure": false
+  }
+}

client/src/environments/environment.hmr.ts

@@ -1,5 +1,5 @@
 export const environment = {
   production: false,
   hmr: true,
-  apiUrl: 'http://localhost:9000'
+  apiUrl: ''
 }

scripts/watch/client.sh

@@ -4,4 +4,4 @@ set -eu
 
 cd client
 
-npm run ng -- serve --hmr --configuration hmr --host 0.0.0.0 --disable-host-check --port 3000
+npm run ng -- serve --proxy-config proxy.config.json --hmr --configuration hmr --host 0.0.0.0 --disable-host-check --port 3000

support/docker/gitpod/Dockerfile

@@ -0,0 +1,11 @@
+FROM gitpod/workspace-postgres
+
+# Install PeerTube's dependencies.
+RUN sudo apt-get update -q && sudo apt-get install -qy \
+ ffmpeg \
+ openssl \
+ redis-server
+
+# Set up PostgreSQL.
+COPY --chown=gitpod:gitpod setup_postgres.sql /tmp/
+RUN pg_start && psql -h localhost -d postgres --file=/tmp/setup_postgres.sql

support/docker/gitpod/setup_postgres.sql

@@ -0,0 +1,6 @@
+create database peertube_dev;
+create user peertube password 'peertube';
+grant all privileges on database peertube_dev to peertube;
+\c peertube_dev
+CREATE EXTENSION pg_trgm;
+CREATE EXTENSION unaccent;