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   1 # Library of functions shared by all CI scripts
   2
   3 skip_branch_tip_with_tag () {
   4         # Sometimes, a branch is pushed at the same time the tag that points
   5         # at the same commit as the tip of the branch is pushed, and building
   6         # both at the same time is a waste.
   7         #
   8         # When the build is triggered by a push to a tag, $CI_BRANCH will
   9         # have that tagname, e.g. v2.14.0.  Let's see if $CI_BRANCH is
  10         # exactly at a tag, and if so, if it is different from $CI_BRANCH.
  11         # That way, we can tell if we are building the tip of a branch that
  12         # is tagged and we can skip the build because we won't be skipping a
  13         # build of a tag.
  14
  15         if TAG=$(git describe --exact-match "$CI_BRANCH" 2>/dev/null) &&
  16                 test "$TAG" != "$CI_BRANCH"
  17         then
  18                 echo "$(tput setaf 2)Tip of $CI_BRANCH is exactly at $TAG$(tput sgr0)"
  19                 exit 0
  20         fi
  21 }
  22
  23 # Save some info about the current commit's tree, so we can skip the build
  24 # job if we encounter the same tree again and can provide a useful info
  25 # message.
  26 save_good_tree () {
  27         echo "$(git rev-parse $CI_COMMIT^{tree}) $CI_COMMIT $CI_JOB_NUMBER $CI_JOB_ID" >>"$good_trees_file"
  28         # limit the file size
  29         tail -1000 "$good_trees_file" >"$good_trees_file".tmp
  30         mv "$good_trees_file".tmp "$good_trees_file"
  31 }
  32
  33 # Skip the build job if the same tree has already been built and tested
  34 # successfully before (e.g. because the branch got rebased, changing only
  35 # the commit messages).
  36 skip_good_tree () {
  37         if test "$TRAVIS_DEBUG_MODE" = true
  38         then
  39                 return
  40         fi
  41
  42         if ! good_tree_info="$(grep "^$(git rev-parse $CI_COMMIT^{tree}) " "$good_trees_file")"
  43         then
  44                 # Haven't seen this tree yet, or no cached good trees file yet.
  45                 # Continue the build job.
  46                 return
  47         fi
  48
  49         echo "$good_tree_info" | {
  50                 read tree prev_good_commit prev_good_job_number prev_good_job_id
  51
  52                 if test "$CI_JOB_ID" = "$prev_good_job_id"
  53                 then
  54                         cat <<-EOF
  55                         $(tput setaf 2)Skipping build job for commit $CI_COMMIT.$(tput sgr0)
  56                         This commit has already been built and tested successfully by this build job.
  57                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  58                         EOF
  59                 else
  60                         cat <<-EOF
  61                         $(tput setaf 2)Skipping build job for commit $CI_COMMIT.$(tput sgr0)
  62                         This commit's tree has already been built and tested successfully in build job $prev_good_job_number for commit $prev_good_commit.
  63                         The log of that build job is available at $(url_for_job_id $prev_good_job_id)
  64                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  65                         EOF
  66                 fi
  67         }
  68
  69         exit 0
  70 }
  71
  72 check_unignored_build_artifacts ()
  73 {
  74         ! git ls-files --other --exclude-standard --error-unmatch \
  75                 -- ':/*' 2>/dev/null ||
  76         {
  77                 echo "$(tput setaf 1)error: found unignored build artifacts$(tput sgr0)"
  78                 false
  79         }
  80 }
  81
  82 # Clear MAKEFLAGS that may come from the outside world.
  83 export MAKEFLAGS=
  84
  85 # Set 'exit on error' for all CI scripts to let the caller know that
  86 # something went wrong.
  87 # Set tracing executed commands, primarily setting environment variables
  88 # and installing dependencies.
  89 set -ex
  90
  91 if test true = "$TRAVIS"
  92 then
  93         CI_TYPE=travis
  94         # When building a PR, TRAVIS_BRANCH refers to the *target* branch. Not
  95         # what we want here. We want the source branch instead.
  96         CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
  97         CI_COMMIT="$TRAVIS_COMMIT"
  98         CI_JOB_ID="$TRAVIS_JOB_ID"
  99         CI_JOB_NUMBER="$TRAVIS_JOB_NUMBER"
 100         CI_OS_NAME="$TRAVIS_OS_NAME"
 101         CI_REPO_SLUG="$TRAVIS_REPO_SLUG"
 102
 103         cache_dir="$HOME/travis-cache"
 104
 105         url_for_job_id () {
 106                 echo "https://travis-ci.org/$CI_REPO_SLUG/jobs/$1"
 107         }
 108
 109         BREW_INSTALL_PACKAGES="git-lfs gettext"
 110         export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
 111         export GIT_TEST_OPTS="--verbose-log -x --immediate"
 112         MAKEFLAGS="$MAKEFLAGS --jobs=2"
 113 elif test -n "$SYSTEM_COLLECTIONURI" || test -n "$SYSTEM_TASKDEFINITIONSURI"
 114 then
 115         CI_TYPE=azure-pipelines
 116         # We are running in Azure Pipelines
 117         CI_BRANCH="$BUILD_SOURCEBRANCH"
 118         CI_COMMIT="$BUILD_SOURCEVERSION"
 119         CI_JOB_ID="$BUILD_BUILDID"
 120         CI_JOB_NUMBER="$BUILD_BUILDNUMBER"
 121         CI_OS_NAME="$(echo "$AGENT_OS" | tr A-Z a-z)"
 122         test darwin != "$CI_OS_NAME" || CI_OS_NAME=osx
 123         CI_REPO_SLUG="$(expr "$BUILD_REPOSITORY_URI" : '.*/\([^/]*/[^/]*\)$')"
 124         CC="${CC:-gcc}"
 125
 126         # use a subdirectory of the cache dir (because the file share is shared
 127         # among *all* phases)
 128         cache_dir="$HOME/test-cache/$SYSTEM_PHASENAME"
 129
 130         url_for_job_id () {
 131                 echo "$SYSTEM_TASKDEFINITIONSURI$SYSTEM_TEAMPROJECT/_build/results?buildId=$1"
 132         }
 133
 134         export GIT_PROVE_OPTS="--timer --jobs 10 --state=failed,slow,save"
 135         export GIT_TEST_OPTS="--verbose-log -x --write-junit-xml"
 136         MAKEFLAGS="$MAKEFLAGS --jobs=10"
 137         test windows_nt != "$CI_OS_NAME" ||
 138         GIT_TEST_OPTS="--no-chain-lint --no-bin-wrappers $GIT_TEST_OPTS"
 139 else
 140         echo "Could not identify CI type" >&2
 141         exit 1
 142 fi
 143
 144 good_trees_file="$cache_dir/good-trees"
 145
 146 mkdir -p "$cache_dir"
 147
 148 skip_branch_tip_with_tag
 149 skip_good_tree
 150
 151 if test -z "$jobname"
 152 then
 153         jobname="$CI_OS_NAME-$CC"
 154 fi
 155
 156 export DEVELOPER=1
 157 export DEFAULT_TEST_TARGET=prove
 158 export GIT_TEST_CLONE_2GB=true
 159
 160 case "$jobname" in
 161 linux-clang|linux-gcc)
 162         if [ "$jobname" = linux-gcc ]
 163         then
 164                 export CC=gcc-8
 165         fi
 166
 167         export GIT_TEST_HTTPD=true
 168
 169         # The Linux build installs the defined dependency versions below.
 170         # The OS X build installs much more recent versions, whichever
 171         # were recorded in the Homebrew database upon creating the OS X
 172         # image.
 173         # Keep that in mind when you encounter a broken OS X build!
 174         export LINUX_P4_VERSION="16.2"
 175         export LINUX_GIT_LFS_VERSION="1.5.2"
 176
 177         P4_PATH="$HOME/custom/p4"
 178         GIT_LFS_PATH="$HOME/custom/git-lfs"
 179         export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH"
 180         ;;
 181 osx-clang|osx-gcc)
 182         if [ "$jobname" = osx-gcc ]
 183         then
 184                 export CC=gcc-9
 185         fi
 186
 187         # t9810 occasionally fails on Travis CI OS X
 188         # t9816 occasionally fails with "TAP out of sequence errors" on
 189         # Travis CI OS X
 190         export GIT_SKIP_TESTS="t9810 t9816"
 191         ;;
 192 GIT_TEST_GETTEXT_POISON)
 193         export GIT_TEST_GETTEXT_POISON=true
 194         ;;
 195 esac
 196
 197 MAKEFLAGS="$MAKEFLAGS CC=${CC:-cc}"