ci: reuse discord send function from library

Provides more info and requires less boilerplate.

Signed-off-by: Jakub Sokołowski <jakub@status.im>

Jenkinsfile

@@ -1,3 +1,6 @@
+#!/usr/bin/env groovy
+library 'status-jenkins-lib@v1.8.6'
+
 pipeline {
   agent { label 'linux' }
 
@@ -108,47 +111,11 @@ pipeline {
     cleanup { cleanWs() }
     always { script {
       def result  = currentBuild.result.toLowerCase() ?: 'unknown'
-      discordNotify(header: "Logos Press Engine Docker image build ${result}!")
+      discord.send(
+        header: "Logos Press Engine Docker image build ${result}!",
+        descPrefix: "Image: [`${env.IMAGE_NAME}:${params.IMAGE_TAG}`](https://harbor.status.im/${params.IMAGE_NAME}/tags?name=${params.IMAGE_TAG})",
+        cred: 'logos-press-engine-discord-webhook-url',
+      )
     } }
   }
 }
-
-def discordNotify(Map args=[:]) {
-  def opts = [
-    header: args.header ?: 'Deployment successful!',
-    title:  args.title  ?: "${env.JOB_NAME}#${env.BUILD_NUMBER}",
-    cred:   args.cred   ?: 'logos-press-engine-discord-webhook-url',
-  ]
-  def repo = [
-    url: GIT_URL.minus('.git'),
-    branch: GIT_BRANCH.minus('origin/'),
-    commit: GIT_COMMIT.take(8),
-    prev: (
-      env.GIT_PREVIOUS_SUCCESSFUL_COMMIT ?: env.GIT_PREVIOUS_COMMIT ?: 'master'
-    ).take(8),
-  ]
-  wrap([$class: 'BuildUser']) {
-    BUILD_USER_ID = env.BUILD_USER_ID
-  }
-  withCredentials([
-    string(
-      credentialsId: opts.cred,
-      variable: 'DISCORD_WEBHOOK',
-    ),
-  ]) {
-    discordSend(
-      link: env.BUILD_URL,
-      result: currentBuild.currentResult,
-      webhookURL: env.DISCORD_WEBHOOK,
-      title: opts.title,
-      description: """
-        ${opts.header}
-        Image: [`${env.IMAGE_NAME}:${params.IMAGE_TAG}`](https://harbor.status.im/${params.IMAGE_NAME}/tags?name=${params.IMAGE_TAG})
-        Branch: [`${repo.branch}`](${repo.url}/commits/${repo.branch})
-        Commit: [`${repo.commit}`](${repo.url}/commit/${repo.commit})
-        Diff: [`${repo.prev}...${repo.commit}`](${repo.url}/compare/${repo.prev}...${repo.commit})
-        By: [`${BUILD_USER_ID}`](${repo.url}/commits?author=${BUILD_USER_ID})
-      """,
-    )
-  }
-}