travis: more cleanup (#3336)

* add links to build image update history

* remove cmake from apt

* remove bc from apt

* remove clang-format from apt

* test clang-format

* Revert "test clang-format"

This reverts commit b2f12da427.

* remove protobuf from apt

* Revert "remove protobuf from apt"

This reverts commit 9162c8800c.

* remove qt from apt

* test with versions which differ from what xenial provides

* Revert "test with versions which differ from what xenial provides"

This reverts commit 6192e58169.

* Revert "remove qt from apt"

This reverts commit 0d9aff1c4c.

* conditions v1 are the default now

https://blog.travis-ci.com/2018-07-18-build-stages-officially-released

* add new job names

https://docs.travis-ci.com/user/customizing-the-build/?utm_source=blog&utm_medium=web&utm_campaign=build_stages_ga#Naming-Jobs-within-Matrices

* disable mail

* clang-format version

* remove clang source

* cmake version

* macOS: remove clang-format

formatting only checked on linux build

* add compiler info

* cmake version2

* remove fast_finish

only useful if allowed failures are configured in the matrix:
https://docs.travis-ci.com/user/customizing-the-build/#fast-finishing

.travis.yml

@@ -1,42 +1,38 @@
 language: cpp
-
+compiler: gcc
 cache: ccache
 
-conditions: v1
-
-
 matrix:
-  fast_finish: true
   include:
-  - os: linux
+  #Ubuntu
+  - name: Ubuntu (Debug)
+    if: tag IS NOT present
+    os: linux
     dist: xenial
     group: stable
     env: BUILDTYPE=Debug
-    if: tag IS NOT present
-  - os: linux
+  - name: Ubuntu (Release)
+    if: (branch = master AND NOT type = pull_request) OR tag IS present
+    os: linux
     dist: xenial
     group: stable
     env: BUILDTYPE=Release
-    if: (branch = master AND NOT type = pull_request) OR tag IS present
-  - os: osx
+  #macOS
+  - name: macOS (Debug)
+    if: tag IS NOT present
+    os: osx
     osx_image: xcode8
     env: BUILDTYPE=Debug
-    if: tag IS NOT present
-  - os: osx
+  - name: macOS (Release)
+    if: (branch = master AND NOT type = pull_request) OR tag IS present
+    os: osx
     osx_image: xcode8
     env: BUILDTYPE=Release
-    if: (branch = master AND NOT type = pull_request) OR tag IS present
 
 #install dependencies for container-based "linux" builds
 addons:
   apt:
-    sources:
-    - sourceline: 'deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-5.0 main'
-      key_url: 'http://llvm.org/apt/llvm-snapshot.gpg.key'
     packages:
-    - bc
-    - clang-format-5.0
-    - cmake
     - libprotobuf-dev
     - protobuf-compiler
     - qt5-default
@@ -48,6 +44,7 @@ addons:
     - libqt5sql5-mysql
     - libqt5websockets5-dev
 
+
 before_install: bash ./.ci/travis-dependencies.sh
 
 script: bash ./.ci/travis-compile.sh
@@ -89,6 +86,7 @@ deploy:
 
 
 notifications:
+  email: false
   webhooks:
     urls:
     - https://webhooks.gitter.im/e/d94969c3b01b22cbdcb7
@@ -99,5 +97,7 @@ notifications:
     on_error: change
 
 
-# official validator for ".travis.yml" config file: https://yaml.travis-ci.org
-# travis config documentation: https://docs.travis-ci.com/user/customizing-the-build
+# Announcements of build image updates: https://docs.travis-ci.com/user/build-environment-updates/
+# For precise versions of preinstalled tools on the VM, check “Build system information” in the build log!
+# Official validator for ".travis.yml" config file: https://yaml.travis-ci.org
+# Travis CI config documentation: https://docs.travis-ci.com/user/customizing-the-build