ci: travis: keep only code rule checks

The Travis build keeps timing out apparently due to a reduced download
speed compared with some time ago. It is not rare for the build to fail
in the initial "repo sync" phase with the error message:

 No output has been received in the last 10m0s, this potentially
 indicates a stalled build or something wrong with the build itself.

Allowing more verbosity from "repo sync" could possibly avoid this
particular error, but then the second issue is that total build time
reaches 50 minutes very frequently which is the limit for Open Source
projects.

Since we have IBART to run xtest on HiKey, we can loose the test on
QEMU. Therefore, this commit keeps only the code rule checks in the
Travis script (checkpatch.pl and pycodestyle).

Signed-off-by: Jerome Forissier <[email protected]>
Reviewed-by: Joakim Bech <[email protected]>

.travis.yml

@@ -1,76 +1,27 @@
-# One may have a look at http://docs.travis-ci.com/user/installing-dependencies/
-
 language: c
 
 notifications:
   - email: true
 
-sudo: false
-
-cache:
-  ccache: true
-  directories:
-    - $HOME/downloads
-
 git:
   depth: 1000000
 
 before_script:
-  - df -h
-  # Store the home repository
-  - export MYHOME=$PWD
+  - export OPTEE_OS=$PWD
 
   # Download checkpatch.pl
-  - export DST_KERNEL=$PWD/linux && mkdir -p $DST_KERNEL/scripts && cd $DST_KERNEL/scripts
+  - export KERNEL=$HOME/linux && mkdir -p $KERNEL/scripts && cd $KERNEL/scripts
   - wget https://raw.githubusercontent.com/torvalds/linux/master/scripts/checkpatch.pl && chmod a+x checkpatch.pl
   - wget https://raw.githubusercontent.com/torvalds/linux/master/scripts/spelling.txt
   - echo "invalid.struct.name" >const_structs.checkpatch
-  - cd $MYHOME
-
-  - export DL_DIR=$HOME/downloads
-  - function _download() { url="$1"; f="${2:-$(basename $url)}"; if [ ! -e $DL_DIR/$f ] ; then mkdir -p $DL_DIR ; wget $url -O $DL_DIR/$f ; fi }
-  - function download() { _download "$1" "" ; }
-
-  # Travis assigns 2 CPU cores to the container-based environment, so -j3 is
-  # a good concurrency level
-  # https://docs.travis-ci.com/user/ci-environment/
-  - export make="make -j3 -s"
+  - export PATH=$KERNEL/scripts/:$PATH
+  - cd $OPTEE_OS
+  - source scripts/checkpatch_inc.sh
 
-  # Tools required for QEMU tests
-  # 'apt-get install' cannot be used in the new container-based infrastructure
-  # (which is the only allowing caching), so we just build from sources
-  # Expect
-  - _download http://sourceforge.net/projects/expect/files/Expect/5.45/expect5.45.tar.gz/download expect5.45.tar.gz
-  - tar xf $DL_DIR/expect5.45.tar.gz
-  - (cd expect5.45 && ./configure --prefix=$HOME/inst --exec-prefix=$HOME/inst CC="ccache gcc" && make && $make install) && rm -rf expect5.45
-  # Create a wrapper script, so that expect finds its shared library, without setting LD_LIBRARY_PATH globally (buildroot doesn't like it)
-  - mv $HOME/inst/bin/expect $HOME/inst/bin/expect.bin && printf '#!/bin/bash\nexport LD_LIBRARY_PATH=$HOME/inst/lib/expect5.45\n$HOME/inst/bin/expect.bin $*' >$HOME/inst/bin/expect && chmod +x $HOME/inst/bin/expect
-  - export PATH=$HOME/inst/bin:$PATH;
-  # pycrypto 2.6.1 or later has Crypto.Signature, 2.4.1 does not. It is needed to sign the test TAs.
-  - pip install --upgrade --user pycrypto
+  # Install pycodestyle
   - pip install --upgrade --user pycodestyle
-  # Clone repositories for the QEMU test environment
-  - mkdir -p $HOME/bin
-  - (cd $HOME/bin && wget https://storage.googleapis.com/git-repo-downloads/repo && chmod +x repo)
-  - export PATH=$HOME/bin:$PATH
-  - mkdir $HOME/optee_repo
-  - (cd $HOME/optee_repo && repo init -u https://github.com/OP-TEE/manifest.git </dev/null && repo sync --no-clone-bundle --no-tags -j 20)
-  - (cd $HOME/optee_repo && rm -rf optee_os && ln -s $MYHOME optee_os)
-  - cd $MYHOME
-  - git fetch https://github.com/OP-TEE/optee_os --tags
-  - unset CC
-
-  - export PATH=$HOME/git-2.9.3/:$DST_KERNEL/scripts/:$PATH
-  - source ${HOME}/optee_repo/optee_os/scripts/checkpatch_inc.sh
 
 script:
-  - if [ "${COVERITY_SCAN_BRANCH}" == 1 ]; then
-      echo "Skip script for Coverity";
-      travis_terminate 0;
-    fi
-
-  - ccache -s
-  - df -h
   # Run checkpatch.pl on:
   # - the tip of the branch if we're not in a pull request
   # - each commit in the development branch that's not in the target branch otherwise
@@ -80,23 +31,4 @@ script:
   - if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then if [ "$(git rev-list --count HEAD^1..HEAD^2)" -gt 1 ]; then checkdiff $(git rev-parse HEAD^1) $(git rev-parse HEAD^2); fi; fi
 
   # Check Python style
-  - (cd ${HOME}/optee_repo/optee_os; pycodestyle scripts/*.py core/arch/arm/plat-stm32mp1/scripts/stm32image.py)
-  # Run regression tests (xtest in QEMU)
-  - export CFG_WERROR=y
-  - (cd ${HOME}/optee_repo/build && $make aarch32 && rm -f ${HOME}/optee_repo/toolchains/gcc-*.tar.xz && $make check BR2_CCACHE_DIR=~/.ccache DUMP_LOGS_ON_ERROR=1)
-  - ccache -s
-  - df -h
-
-env:
-  global:
-    secure: "k30FG3hL6dQywtvMeEjSM0FQ7A0r+AQriUkGSFv7bmwD3EX2H17tJsfZt/h3dj+Pj6lQPdhVg3YO6O6pksJLqBLyz86bN15JEik0e1zftZplzK00oT89eoQr+qgqyrbs6CZBRvS98EAneCNbvgJto9sIPJs0SGu0u31Pr06bTAg="
-
-addons:
-  coverity_scan:
-    project:
-      name: "OP-TEE/optee_os"
-      description: "Build submitted via Travis CI"
-    notification_email: [email protected]
-    build_command_prepend: "cov-configure --comptype gcc --compiler arm-linux-gnueabihf-gcc --template"
-    build_command: "make"
-    branch_pattern: coverity_scan
+  - pycodestyle scripts/*.py core/arch/arm/plat-stm32mp1/scripts/stm32image.py