ci/lib-travisci.sh

   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         # Travis gives a tagname e.g. v2.14.0 in $TRAVIS_BRANCH when
   9         # the build is triggered by a push to a tag.  Let's see if
  10         # $TRAVIS_BRANCH is exactly at a tag, and if so, if it is
  11         # different from $TRAVIS_BRANCH.  That way, we can tell if
  12         # we are building the tip of a branch that is tagged and
  13         # we can skip the build because we won't be skipping a build
  14         # of a tag.
  15
  16         if TAG=$(git describe --exact-match "$TRAVIS_BRANCH" 2>/dev/null) &&
  17                 test "$TAG" != "$TRAVIS_BRANCH"
  18         then
  19                 echo "$(tput setaf 2)Tip of $TRAVIS_BRANCH is exactly at $TAG$(tput sgr0)"
  20                 exit 0
  21         fi
  22 }
  23
  24 good_trees_file="$HOME/travis-cache/good-trees"
  25
  26 # Save some info about the current commit's tree, so we can skip the build
  27 # job if we encounter the same tree again and can provide a useful info
  28 # message.
  29 save_good_tree () {
  30         echo "$(git rev-parse $TRAVIS_COMMIT^{tree}) $TRAVIS_COMMIT $TRAVIS_JOB_NUMBER $TRAVIS_JOB_ID" >>"$good_trees_file"
  31         # limit the file size
  32         tail -1000 "$good_trees_file" >"$good_trees_file".tmp
  33         mv "$good_trees_file".tmp "$good_trees_file"
  34 }
  35
  36 # Skip the build job if the same tree has already been built and tested
  37 # successfully before (e.g. because the branch got rebased, changing only
  38 # the commit messages).
  39 skip_good_tree () {
  40         if ! good_tree_info="$(grep "^$(git rev-parse $TRAVIS_COMMIT^{tree}) " "$good_trees_file")"
  41         then
  42                 # Haven't seen this tree yet, or no cached good trees file yet.
  43                 # Continue the build job.
  44                 return
  45         fi
  46
  47         echo "$good_tree_info" | {
  48                 read tree prev_good_commit prev_good_job_number prev_good_job_id
  49
  50                 if test "$TRAVIS_JOB_ID" = "$prev_good_job_id"
  51                 then
  52                         cat <<-EOF
  53                         $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
  54                         This commit has already been built and tested successfully by this build job.
  55                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  56                         EOF
  57                 else
  58                         cat <<-EOF
  59                         $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
  60                         This commit's tree has already been built and tested successfully in build job $prev_good_job_number for commit $prev_good_commit.
  61                         The log of that build job is available at https://travis-ci.org/$TRAVIS_REPO_SLUG/jobs/$prev_good_job_id
  62                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  63                         EOF
  64                 fi
  65         }
  66
  67         exit 0
  68 }
  69
  70 check_unignored_build_artifacts ()
  71 {
  72         ! git ls-files --other --exclude-standard --error-unmatch \
  73                 -- ':/*' 2>/dev/null ||
  74         {
  75                 echo "$(tput setaf 1)error: found unignored build artifacts$(tput sgr0)"
  76                 false
  77         }
  78 }
  79
  80 # Set 'exit on error' for all CI scripts to let the caller know that
  81 # something went wrong.
  82 # Set tracing executed commands, primarily setting environment variables
  83 # and installing dependencies.
  84 set -ex
  85
  86 mkdir -p "$HOME/travis-cache"
  87
  88 skip_branch_tip_with_tag
  89 skip_good_tree
  90
  91 if test -z "$jobname"
  92 then
  93         jobname="$TRAVIS_OS_NAME-$CC"
  94 fi
  95
  96 export DEVELOPER=1
  97 export DEFAULT_TEST_TARGET=prove
  98 export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
  99 export GIT_TEST_OPTS="--verbose-log"
 100 export GIT_TEST_CLONE_2GB=YesPlease
 101
 102 case "$jobname" in
 103 linux-clang|linux-gcc)
 104         export GIT_TEST_HTTPD=YesPlease
 105
 106         # The Linux build installs the defined dependency versions below.
 107         # The OS X build installs the latest available versions. Keep that
 108         # in mind when you encounter a broken OS X build!
 109         export LINUX_P4_VERSION="16.2"
 110         export LINUX_GIT_LFS_VERSION="1.5.2"
 111
 112         P4_PATH="$HOME/custom/p4"
 113         GIT_LFS_PATH="$HOME/custom/git-lfs"
 114         export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH"
 115         ;;
 116 osx-clang|osx-gcc)
 117         # t9810 occasionally fails on Travis CI OS X
 118         # t9816 occasionally fails with "TAP out of sequence errors" on
 119         # Travis CI OS X
 120         export GIT_SKIP_TESTS="t9810 t9816"
 121         ;;
 122 GETTEXT_POISON)
 123         export GETTEXT_POISON=YesPlease
 124         ;;
 125 esac