[gnome-settings-daemon/wip/claudio/CI: 7/13] CI: Improve continuous integration speed

[Benjamin Berg <bberg src gnome org>]

commit df4e2bbd02494c0c7ffe9041c717f039ec6fc39b
Author: Claudio André <claudioandre br gmail com>
Date:   Thu Jul 12 16:51:59 2018 -0300

    CI: Improve continuous integration speed
    
    The expected gain is 5 minutes.

 .gitlab-ci.yml            | 83 +++++++++++++++++++++++++++++------------------
 build-aux/ci/ci-helper.sh | 61 ++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 32 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8f08b606..5eec8941 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,23 +1,35 @@
-image: fedora:rawhide
+image: registry.gitlab.gnome.org/gnome/gnome-settings-daemon:fedora.dev
 stages:
   - build
   - test
-  - deploy
 
-variables:
-  DEPENDENCIES: alsa-lib-devel colord-devel cups-devel fontconfig-devel geoclue2-devel geocode-glib-devel
-                gettext git glib2-devel gnome-desktop3-devel gnome-session gobject-introspection
-                gsettings-desktop-schemas-devel gtk3-devel lcms2-devel libcanberra-devel libgtop2-devel
-                libgudev-devel libgweather-devel libnotify-devel librsvg2-devel libX11-devel libXi-devel
-                libwacom-devel meson NetworkManager-libnm-devel nss-devel perl-interpreter
-                polkit-devel pulseaudio-libs-devel pygobject3 python3-dbusmock upower-devel wayland-devel
-                which xorg-x11-drv-wacom-devel xorg-x11-server-Xvfb xorg-x11-utils mutter
-                mesa-dri-drivers umockdev libcanberra-gtk3
+.Log files: &log_files  [./*.log, _build/meson-logs/]
 
+.Build logs: &save_build_logs
+  artifacts:
+    name: log
+    when: always
+    paths: *log_files
 
-before_script:
-  - dnf update -y --nogpgcheck && dnf install -y --nogpgcheck $DEPENDENCIES
+.Git Untracked files: &save_untracked_files
+  artifacts:
+    name: untracked
+    paths: [$(pwd)]
+    expire_in: 3h30min
 
+.Show Info: &environment_information
+  build-aux/ci/ci-helper.sh "INFO" &&
+  build-aux/ci/ci-helper.sh "GIT_INFO"
+
+.Build procedure: &build_procedure
+  echo "== Building ==" &&
+  rm -rf _build/ &&
+  meson . _build ${BUILD_OPTS} &&
+  ninja -C _build 2>&1 | tee compilation.log
+
+.Run Tests: &run_tests
+  echo "== Testing ==" &&
+  ninja -C _build test
 
 ##
 # Stage: Build
@@ -27,12 +39,21 @@ before_script:
 # any of them.
 ##
 build:
+  <<: *save_untracked_files
   stage: build
+
   script:
-    - meson . _build
-    - ninja -C _build
+    - *environment_information
+    - *build_procedure
+
+    - echo "== Installing =="
     - ninja -C _build install
 
+    - echo "== Report =="
+    - build-aux/ci/ci-helper.sh "WARNINGS"
+
+    # Save all but git-related files
+    - rm -rf .git .gitignore .gitmodules
 
 ##
 # Stage: Test
@@ -40,24 +61,22 @@ build:
 # Runs the unit tests.
 ##
 test:
+  <<: *save_build_logs
   stage: test
-  script:
-    - meson . _build
-    - ninja -C _build
-    - meson test -C _build --verbose --no-stdsplit
 
+  dependencies:
+    - build
 
-##
-# Stage: Deploy
-#
-# Checks if the released version is in a good shape.
-##
-deploy:
-  stage: deploy
   script:
-    - meson . _build
-    - ninja -C _build
-    - meson test -C _build --verbose
-    - ninja dist -C _build
-  only:
-    - tags
+    - *environment_information
+
+    - |
+      if [[ -n "${CI_COMMIT_TAG}" ]]; then
+        *run_tests
+
+        echo "== Distro Test =="
+        ninja dist -C _build
+      else
+        echo "== Testing =="
+        meson test -C _build --verbose --no-stdsplit
+      fi
diff --git a/build-aux/ci/ci-helper.sh b/build-aux/ci/ci-helper.sh
new file mode 100755
index 00000000..ddecded2
--- /dev/null
+++ b/build-aux/ci/ci-helper.sh
@@ -0,0 +1,61 @@
+#!/bin/bash -e
+
+function do_print_labels(){
+
+    if [[ -n "${1}" ]]; then
+        label_len=${#1}
+        span=$(((54 - $label_len) / 2))
+
+        echo
+        echo "= ======================================================== ="
+        printf "%s %${span}s %s %${span}s %s\n" "=" "" "$1" "" "="
+        echo "= ======================================================== ="
+    else
+        echo "= ========================= Done ========================= ="
+        echo
+    fi
+}
+
+function do_show_info(){
+
+    local compiler=gcc
+
+    echo -n "Processors: "; grep -c ^processor /proc/cpuinfo
+    grep ^MemTotal /proc/meminfo
+    id; uname -a
+    printenv
+    echo '-----------------------------------------'
+    cat /etc/*-release
+    echo '-----------------------------------------'
+
+    if [[ ! -z $CC ]]; then
+        compiler=$CC
+    fi
+    echo 'Compiler version'
+    $compiler --version
+    echo '-----------------------------------------'
+    $compiler -dM -E -x c /dev/null
+    echo '-----------------------------------------'
+}
+
+function do_check_warnings(){
+
+    cat compilation.log | grep "warning:" | awk '{total+=1}END{print "Total number of warnings: "total}'
+}
+
+# -----------  -----------
+if [[ $1 == "INFO" ]]; then
+    do_print_labels 'Build environment '
+    do_show_info
+    do_print_labels
+
+elif [[ $1 == "GIT_INFO" ]]; then
+    do_print_labels 'Commit'
+    git log --pretty=format:"%h %cd %s" -1; echo
+    do_print_labels
+
+elif [[ $1 == "WARNINGS" ]]; then
+    do_print_labels 'Warning Report '
+    do_check_warnings
+    do_print_labels
+fi
\ No newline at end of file