CI: try to show who helped to translate ZNC

.ci/Jenkinsfile.crowdin

@@ -50,6 +50,13 @@ timestamps {
                 }
                 sh 'LANG=C.UTF-8 find . -name "*.po" -exec msgfilter -i "{}" -o "{}.replacement" .ci/cleanup-po.pl ";"'
                 sh 'find . -name "*.po" -exec mv "{}.replacement" "{}" ";"'
+                withCredentials([string(credentialsId: 'fe727e3e-a8e0-4019-817f-6583c3c51ef7', variable: 'CROWDIN_API2_KEY')]) {
+                  def headers = [[maskValue: true, name: 'Authorization', value: "Bearer ${env.CROWDIN_API2_KEY}"], [maskValue: false, name: 'User-Agent', value: 'https://github.com/znc/znc/blob/master/.ci/Jenkinsfile.crowdin']]
+                  def contributors = httpRequest consoleLogResponseBody: true, customHeaders: headers, url: "https://crowdin.com/api/v2/projects/289533/members?limit=500"
+                  writeFile file: 'contributors.tmp', text: contributors.content
+                }
+                sh '.ci/crowdin-contributors.py < contributors.tmp'
+                sh 'rm contributors.tmp'
               }
               stage("Push ${upstream_branch}") {
                 sh 'git config user.name "ZNC-Jenkins"'

.ci/crowdin-contributors.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+import json
+import sys
+
+array = []
+
+data = json.load(sys.stdin)
+for user in data['data']:
+    user = user['data']
+    if user['fullName']:
+        array.append('* {} ({})'.format(user['username'], user['fullName']))
+    else:
+        array.append('* ' + user['username'])
+
+array.sort(key=lambda x: x.lower())
+
+sys.stdout = open('TRANSLATORS.md', 'wt')
+
+print('These people helped translating ZNC to various languages:')
+print()
+for u in array:
+    print(u)
+print()
+print('Generated from https://crowdin.com/project/znc-bouncer')