Update Travis config

As per comment: pytest-dev#6870 (comment)

.travis.yml

@@ -1,17 +1,12 @@
 language: python
 dist: xenial
-stages:
-- baseline
-- name: test
-  if: repo = pytest-dev/pytest AND tag IS NOT present
-- name: deploy
-  if: repo = pytest-dev/pytest AND tag IS present
-python: '3.7'
+python: '3.7.4'
 cache: false
 
 env:
   global:
-    - PYTEST_ADDOPTS=-vv
+    - PYTEST_ADDOPTS="-vv --showlocals --durations=100 --exitfirst"
+    - PYTEST_COVERAGE=1
 
 # setuptools-scm needs all tags in order to obtain a proper version
 git:
@@ -22,113 +17,33 @@ install:
 
 jobs:
   include:
-    # OSX tests - first (in test stage), since they are the slower ones.
-    - &test-macos
-      os: osx
-      osx_image: xcode10.1
-      language: generic
-      # Coverage for:
-      # - py2 with symlink in test_cmdline_python_package_symlink.
-      env: TOXENV=py27-xdist PYTEST_COVERAGE=1
-      before_install:
-        - python -V
-        - test $(python -c 'import sys; print("%d%d" % sys.version_info[0:2])') = 27
-    - <<: *test-macos
-      env: TOXENV=py37-pexpect,py37-xdist PYTEST_COVERAGE=1
-      before_install:
-        - which python3
-        - python3 -V
-        - ln -sfn "$(which python3)" /usr/local/bin/python
-        - python -V
-        - test $(python -c 'import sys; print("%d%d" % sys.version_info[0:2])') = 37
-
-    # Full run of latest (major) supported versions, without xdist.
-    - env: TOXENV=py27
-      python: '2.7'
-    - env: TOXENV=py37
-      python: '3.7'
-
-    # Coverage tracking is slow with pypy, skip it.
-    - env: TOXENV=pypy-xdist
-      python: 'pypy'
-    - env: TOXENV=pypy3-xdist
-      python: 'pypy3'
-
-    - env: TOXENV=py34-xdist
-      python: '3.4'
-    - env: TOXENV=py35-xdist
-      python: '3.5'
-
     # Coverage for:
-    # - pytester's LsofFdLeakChecker
     # - TestArgComplete (linux only)
     # - numpy
-    # Empty PYTEST_ADDOPTS to run this non-verbose.
-    - env: TOXENV=py37-lsof-numpy-xdist PYTEST_COVERAGE=1 PYTEST_ADDOPTS=
+    # - verbose=0
+    # - test_sys_breakpoint_interception (via pexpect).
+    - stage: baseline
+      env: TOXENV=py38-xdist
+      python: '3.8'
 
-    # Specialized factors for py27.
-    - env: TOXENV=py27-nobyte-numpy-xdist
-      python: '2.7'
-    - env: TOXENV=py27-pluggymaster-xdist
+    - env: TOXENV=py27-xdist
       python: '2.7'
 
-    # Specialized factors for py37.
-    # Coverage for:
-    # - test_sys_breakpoint_interception (via pexpect).
-    - env: TOXENV=py37-pexpect,py37-twisted PYTEST_COVERAGE=1
-    - env: TOXENV=py37-pluggymaster-xdist
-    - env: TOXENV=py37-freeze
+    - stage: tests
+      env: TOXENV=py37-numpy-pexpect-twisted
+      python: '3.7.4'
 
-    # Jobs only run via Travis cron jobs (currently daily).
-    - env: TOXENV=py38-xdist
-      python: '3.8-dev'
-      if: type = cron
+    - env: TOXENV=py36-xdist PYTEST_REORDER_TESTS=0
+      python: '3.6.9'
 
-    - stage: baseline
-    # Coverage for:
-    # - _pytest.unittest._handle_skip (via pexpect).
-      env: TOXENV=py27-pexpect,py27-twisted PYTEST_COVERAGE=1
-      python: '2.7'
-    # Use py36 here for faster baseline.
-    - env: TOXENV=py36-xdist
-      python: '3.6'
-    - env: TOXENV=linting,docs,doctesting PYTEST_COVERAGE=1
+    - env: TOXENV=py35-xdist
+      python: '3.5.9'
+
+    - env: TOXENV=linting,docs,doctesting
       cache:
         directories:
           - $HOME/.cache/pre-commit
 
-    - stage: deploy
-      python: '3.6'
-      install: pip install -U setuptools setuptools_scm tox
-      script: skip
-      # token to upload github release notes: GH_RELEASE_NOTES_TOKEN
-      env:
-        - secure: "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"
-      addons:
-        apt:
-          packages:
-            # required by publish_gh_release_notes
-            - pandoc
-      after_deploy: tox -e publish_gh_release_notes
-      deploy:
-        provider: pypi
-        user: nicoddemus
-        distributions: sdist bdist_wheel
-        skip_upload_docs: true
-        password:
-          secure: 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
-        on:
-          tags: true
-          repo: pytest-dev/pytest
-
-matrix:
-  allow_failures:
-    - python: '3.8-dev'
-      env: TOXENV=py38-xdist
-    # Temporary (https://github.com/pytest-dev/pytest/pull/5334).
-    - env: TOXENV=pypy3-xdist
-      python: 'pypy3'
-
 before_script:
   - |
     # Do not (re-)upload coverage with cron runs.
@@ -143,26 +58,14 @@ before_script:
       export _PYTEST_TOX_EXTRA_DEP=coverage-enable-subprocess
     fi
 
-script: tox
+script: env COLUMNS=120 python -m tox
 
 after_success:
   - |
     if [[ "$PYTEST_COVERAGE" = 1 ]]; then
-      set -e
-      # Add last TOXENV to $PATH.
-      PATH="$PWD/.tox/${TOXENV##*,}/bin:$PATH"
-      coverage combine
-      coverage xml
-      coverage report -m
-      bash <(curl -s https://codecov.io/bash) -Z -X gcov -X coveragepy -X search -X xcode -X gcovout -X fix -f coverage.xml -n $TOXENV-$TRAVIS_OS_NAME
+      env CODECOV_NAME="$TOXENV-$TRAVIS_OS_NAME" scripts/report-coverage.sh
     fi
 
-notifications:
-  irc:
-    channels:
-      - "chat.freenode.net#pytest"
-    on_success: change
-    on_failure: change
-    skip_join: true
-  email:
-    - [email protected]
+branches:
+  only:
+    - 4.6.x