travis.yml: travis buddy (#45327)

* .travis.yml: travis buddy

* .travis.yml: on_failure only

* sync_templates_and_ci: add travis buddy template

.travis.yml

@@ -37,6 +37,9 @@ notifications:
   webhooks:
     urls:
       - "https://webhooks.gitter.im/e/712d699360b239db14a5"
-    on_success: change
+      - "https://www.travisbuddy.com/"
+    on_success: never
     on_failure: always
     on_start: never
+    on_cancel: never
+    on_error: never

developer/bin/sync_templates_and_ci

@@ -31,7 +31,7 @@ function copy_templates_and_ci {
   local repo_name
 
   repo_name="${1}"
-  rsync --archive --delete "${main_repo_dir}"/{.editorconfig,.gitattributes,.github,.gitignore,.travis.yml,ci,CODE_OF_CONDUCT.md} '.'
+  rsync --archive --delete "${main_repo_dir}"/{.editorconfig,.gitattributes,.github,.gitignore,.travis.yml,ci,CODE_OF_CONDUCT.md,travis-buddy-failure-template.md} '.'
   /usr/bin/sed -i '' -E "s:homebrew-cask/(pulls|issues):${repo_name}/\1:" '.github/PULL_REQUEST_TEMPLATE.md' # PULL_REQUEST_TEMPLATE has repo-specific links
   
   # increase script.sh install cap for fonts repo