[NOD-546] Report build failures to Discord instead of Telegram (#572)

* [NOD-546] Report build failures to Discord instead of Telegram.

* [NOD-546] Make a temporary compilation error.

* [NOD-546] Make a couple of temporary print outs.

* [NOD-546] Remove temporary debug stuff.

* [NOD-546] Make notify_discord() return early if Discord variables are not set.

deploy.sh

@@ -17,12 +17,16 @@ IMAGE_NAME=${ECR_SERVER}/${SERVICE_NAME}
 # Start atd
 service atd start
 
-# Sends a Telegram notification with some details about the failure
+# Sends a Discord notification with some details about the failure
 # All variables in this function are set by Jenkins
-notify_telegram() {
-  echo "./telegram.sh \
-    '${TELEGRAM_API_TOKEN}' \
-    '${TELEGRAM_CHAT_ID}' \
+notify_discord() {
+  if [ -z "${DISCORD_CLIENT_ID}" ] || [ -z "${DISCORD_API_TOKEN}" ]; then
+    return
+  fi
+
+  echo "./discord.sh \
+    '${DISCORD_CLIENT_ID}' \
+    '${DISCORD_API_TOKEN}' \
     '${BUILD_URL}' \
     '${ghprbActualCommitAuthor}' \
     '${ghprbPullTitle}' \
@@ -32,7 +36,7 @@ notify_telegram() {
 trap "exit 1" INT
 fatal() {
   echo "ERROR: $*" >&2
-  notify_telegram
+  notify_discord
 
   exit 1
 }

discord.sh

@@ -2,10 +2,10 @@
 
 # This file is part of Continuous Integration. When ran by
 # the CI agent, it sends a some details about the build failure
-# to a Telegram group.
+# to a Discord channel.
 
-API_TOKEN="$1"
-CHAT_ID="$2"
+CLIENT_ID="$1"
+API_TOKEN="$2"
 BUILD_URL="$3"
 PR_AUTHOR="$4"
 PR_TITLE="$5"
@@ -16,20 +16,11 @@ MESSAGE="*${PR_AUTHOR}*:
 Build *FAILED* for pull request '${PR_TITLE}'
 [Github](${PR_LINK})        [Jenkins](${BUILD_URL}console)"
 
-# Send the failure message
-curl -s \
-  -X POST \
-  "https://api.telegram.org/bot${API_TOKEN}/sendMessage" \
-  -d chat_id="${CHAT_ID}" \
-  -d parse_mode=markdown \
-  -d disable_web_page_preview=true \
-  -d text="${MESSAGE}"
-
 # Retrieve the build log
 LOG=$(curl ${BUILD_URL}consoleText)
 
 # Send the build log
 printf "$LOG" | curl \
-  "https://api.telegram.org/bot${API_TOKEN}/sendDocument" \
-  -F chat_id="${CHAT_ID}" \
+  "https://discordapp.com/api/webhooks/${CLIENT_ID}/${API_TOKEN}" \
+  -F content="${MESSAGE}" \
   -F document="@-;filename=build.log"