From a41b3d7ce89c1f9c06220e36bb3f15689c45c442 Mon Sep 17 00:00:00 2001
From: Davis King <davis@dlib.net>
Date: Sat, 30 Oct 2021 09:47:42 -0400
Subject: [PATCH] We have some excessive and duplicative tests in the travis-ci
 setup.

This is causing us to run out of travis-ci credits, making tests not run
at all.  I deleted the duplicative tests and then disabled two additonal
ones by commenting them out that would be nice to run but I think are
not essential.  In particular, the OSX one eats up a ton of credits.  So
I disabled that.  Maybe we can turn it back on later if we end up well
under the credit budget (or switch to github actions which appears to
have higher limits)
---
 .travis.yml                   | 73 ++++++++++-------------------------
 dlib/travis/build-and-test.sh | 28 --------------
 2 files changed, 20 insertions(+), 81 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index f428383b5..2f7625f0e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,15 +12,6 @@ matrix:
       script:
         - dlib/travis/build-and-test.sh
 
-    ###################
-    - language: cpp
-      compiler: clang
-      os: linux
-      env:
-        - VARIANT=examples-debug
-      script:
-        - dlib/travis/build-and-test.sh
-
     ###################
     - language: cpp
       compiler: gcc
@@ -31,15 +22,6 @@ matrix:
       script:
         - dlib/travis/build-and-test.sh
 
-    ###################
-    - language: cpp
-      compiler: gcc
-      os: linux
-      env:
-        - VARIANT=tools
-      script:
-        - dlib/travis/build-and-test.sh
-
     ###################
     - language: cpp
       compiler: gcc
@@ -53,15 +35,6 @@ matrix:
       script:
         - dlib/travis/build-and-test.sh
 
-    ###################
-    - language: cpp
-      compiler: gcc
-      os: linux
-      env:
-        - VARIANT=dlib_all_source_cpp
-      script:
-        - dlib/travis/build-and-test.sh
-
     ########### test with C++17 ########
     - language: cpp
       compiler: gcc
@@ -84,21 +57,13 @@ matrix:
         - dlib/travis/build-and-test.sh
 
     ###################
-    - language: cpp
-      compiler: gcc
-      os: linux
-      env:
-        - VARIANT=examples
-      script:
-        - dlib/travis/build-and-test.sh
-
-    ###################
-    - language: python
-      python: 3.5
-      env:
-        - VARIANT=python-api
-      script:
-        - dlib/travis/build-and-test.sh
+    # Disabled to avoid spending too many travis-ci credits each month.
+    #- language: python
+    #  python: 3.5
+    #  env:
+    #    - VARIANT=python-api
+    #  script:
+    #    - dlib/travis/build-and-test.sh
 
     ###################
     - language: python
@@ -109,15 +74,17 @@ matrix:
         - dlib/travis/build-and-test.sh
 
     ###################
-    - language: cpp
-      os: osx
-      osx_image: xcode9.2
-      env:
-        - VARIANT=test
-        # Don't test the timer because it relies on the machine running it not
-        # being under high load, but that seems to be unlikely on the travis
-        # osx VMs.
-        - DISABLED_TESTS="--no_test_timer"
-      script:
-        - dlib/travis/build-and-test.sh
+    # Disabled to avoid spending too many travis-ci credits each month.  They
+    # also charge 5x as many credits for osx as linux.
+    #- language: cpp
+    #  os: osx
+    #  osx_image: xcode9.2
+    #  env:
+    #    - VARIANT=test
+    #    # Don't test the timer because it relies on the machine running it not
+    #    # being under high load, but that seems to be unlikely on the travis
+    #    # osx VMs.
+    #    - DISABLED_TESTS="--no_test_timer"
+    #  script:
+    #    - dlib/travis/build-and-test.sh
 
diff --git a/dlib/travis/build-and-test.sh b/dlib/travis/build-and-test.sh
index a8635db33..b9ac3882d 100755
--- a/dlib/travis/build-and-test.sh
+++ b/dlib/travis/build-and-test.sh
@@ -30,20 +30,6 @@ if [ "$VARIANT" = "test-debug" ]; then
   ./dtest --runall $DISABLED_TESTS
 fi
 
-if [ "$VARIANT" = "dlib_all_source_cpp" ]; then
-  mkdir build
-  cd build
-  cmake ../dlib/test -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
-  cmake --build . --target dlib_all_source_cpp -- -j 2
-fi
-
-if [ "$VARIANT" = "tools" ]; then
-  mkdir build
-  cd build
-  cmake ../dlib/test/tools -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
-  cmake --build .  -- -j 2
-fi
-
 # The point of this test is just to make sure the cmake scripts work with the
 # oldest version of cmake we are supposed to support.
 if [ "$VARIANT" = "old-cmake" ]; then
@@ -69,20 +55,6 @@ if [ "$VARIANT" = "old-cmake" ]; then
   $CMAKEDIR/2.8/bin/cmake --build .  -- -j 2
 fi
 
-if [ "$VARIANT" = "examples" ]; then
-  mkdir build
-  cd build
-  cmake ../examples -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
-  cmake --build . -- -j 1
-fi
-
-if [ "$VARIANT" = "examples-debug" ]; then
-  mkdir build
-  cd build
-  cmake ../examples -DDLIB_ENABLE_ASSERTS=1 -DCMAKE_CXX_FLAGS="${CXX_FLAGS}"
-  cmake --build . -- -j 1
-fi
-
 if [ "$VARIANT" = "python-api" ]; then
   python setup.py test --clean
   pip uninstall numpy -y