Move utils to /shared

Move utils used by /server/tools/* & /server/tests/**/* into
/shared folder.

Issue: #1336

1 files changed, 185 insertions, 0 deletions

diff --git a/shared/utils/server/servers.ts b/shared/utils/server/servers.ts
new file mode 100644
index 000000000..3c946db27
--- /dev/null
+++ b/shared/utils/server/servers.ts
@@ -0,0 +1,185 @@
+import { ChildProcess, exec, fork } from 'child_process'
+import { join } from 'path'
+import { root, wait } from '../miscs/miscs'
+import { readFile } from 'fs-extra'
+
+interface ServerInfo {
+  app: ChildProcess,
+  url: string
+  host: string
+  serverNumber: number
+
+  client: {
+    id: string,
+    secret: string
+  }
+
+  user: {
+    username: string,
+    password: string,
+    email?: string
+  }
+
+  accessToken?: string
+
+  video?: {
+    id: number
+    uuid: string
+    name: string
+    account: {
+      name: string
+    }
+  }
+
+  remoteVideo?: {
+    id: number
+    uuid: string
+  }
+}
+
+function flushAndRunMultipleServers (totalServers: number, configOverride?: Object) {
+  let apps = []
+  let i = 0
+
+  return new Promise<ServerInfo[]>(res => {
+    function anotherServerDone (serverNumber, app) {
+      apps[serverNumber - 1] = app
+      i++
+      if (i === totalServers) {
+        return res(apps)
+      }
+    }
+
+    flushTests()
+      .then(() => {
+        for (let j = 1; j <= totalServers; j++) {
+          runServer(j, configOverride).then(app => anotherServerDone(j, app))
+        }
+      })
+  })
+}
+
+function flushTests () {
+  return new Promise<void>((res, rej) => {
+    return exec('npm run clean:server:test', err => {
+      if (err) return rej(err)
+
+      return res()
+    })
+  })
+}
+
+function runServer (serverNumber: number, configOverride?: Object) {
+  const server: ServerInfo = {
+    app: null,
+    serverNumber: serverNumber,
+    url: `http://localhost:${9000 + serverNumber}`,
+    host: `localhost:${9000 + serverNumber}`,
+    client: {
+      id: null,
+      secret: null
+    },
+    user: {
+      username: null,
+      password: null
+    }
+  }
+
+  // These actions are async so we need to be sure that they have both been done
+  const serverRunString = {
+    'Server listening': false
+  }
+  const key = 'Database peertube_test' + serverNumber + ' is ready'
+  serverRunString[key] = false
+
+  const regexps = {
+    client_id: 'Client id: (.+)',
+    client_secret: 'Client secret: (.+)',
+    user_username: 'Username: (.+)',
+    user_password: 'User password: (.+)'
+  }
+
+  // Share the environment
+  const env = Object.create(process.env)
+  env['NODE_ENV'] = 'test'
+  env['NODE_APP_INSTANCE'] = serverNumber.toString()
+
+  if (configOverride !== undefined) {
+    env['NODE_CONFIG'] = JSON.stringify(configOverride)
+  }
+
+  const options = {
+    silent: true,
+    env: env,
+    detached: true
+  }
+
+  return new Promise<ServerInfo>(res => {
+    server.app = fork(join(__dirname, '..', '..', '..', '..', 'dist', 'server.js'), [], options)
+    server.app.stdout.on('data', function onStdout (data) {
+      let dontContinue = false
+
+      // Capture things if we want to
+      for (const key of Object.keys(regexps)) {
+        const regexp = regexps[key]
+        const matches = data.toString().match(regexp)
+        if (matches !== null) {
+          if (key === 'client_id') server.client.id = matches[1]
+          else if (key === 'client_secret') server.client.secret = matches[1]
+          else if (key === 'user_username') server.user.username = matches[1]
+          else if (key === 'user_password') server.user.password = matches[1]
+        }
+      }
+
+      // Check if all required sentences are here
+      for (const key of Object.keys(serverRunString)) {
+        if (data.toString().indexOf(key) !== -1) serverRunString[key] = true
+        if (serverRunString[key] === false) dontContinue = true
+      }
+
+      // If no, there is maybe one thing not already initialized (client/user credentials generation...)
+      if (dontContinue === true) return
+
+      server.app.stdout.removeListener('data', onStdout)
+      res(server)
+    })
+  })
+}
+
+async function reRunServer (server: ServerInfo, configOverride?: any) {
+  const newServer = await runServer(server.serverNumber, configOverride)
+  server.app = newServer.app
+
+  return server
+}
+
+function killallServers (servers: ServerInfo[]) {
+  for (const server of servers) {
+    process.kill(-server.app.pid)
+  }
+}
+
+async function waitUntilLog (server: ServerInfo, str: string, count = 1) {
+  const logfile = join(root(), 'test' + server.serverNumber, 'logs/peertube.log')
+
+  while (true) {
+    const buf = await readFile(logfile)
+
+    const matches = buf.toString().match(new RegExp(str, 'g'))
+    if (matches && matches.length === count) return
+
+    await wait(1000)
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  ServerInfo,
+  flushAndRunMultipleServers,
+  flushTests,
+  runServer,
+  killallServers,
+  reRunServer,
+  waitUntilLog
+}