git.oblomov.eu Git - git/blob - ci/lib.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         # 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 $TRAVIS_COMMIT^{tree}) $TRAVIS_COMMIT $TRAVIS_JOB_NUMBER $TRAVIS_JOB_ID" >>"$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 ! good_tree_info="$(grep "^$(git rev-parse $TRAVIS_COMMIT^{tree}) " "$good_trees_file")"
  38         then
  39                 # Haven't seen this tree yet, or no cached good trees file yet.
  40                 # Continue the build job.
  41                 return
  42         fi
  43
  44         echo "$good_tree_info" | {
  45                 read tree prev_good_commit prev_good_job_number prev_good_job_id
  46
  47                 if test "$TRAVIS_JOB_ID" = "$prev_good_job_id"
  48                 then
  49                         cat <<-EOF
  50                         $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
  51                         This commit has already been built and tested successfully by this build job.
  52                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  53                         EOF
  54                 else
  55                         cat <<-EOF
  56                         $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
  57                         This commit's tree has already been built and tested successfully in build job $prev_good_job_number for commit $prev_good_commit.
  58                         The log of that build job is available at https://travis-ci.org/$TRAVIS_REPO_SLUG/jobs/$prev_good_job_id
  59                         To force a re-build delete the branch's cache and then hit 'Restart job'.
  60                         EOF
  61                 fi
  62         }
  63
  64         exit 0
  65 }
  66
  67 check_unignored_build_artifacts ()
  68 {
  69         ! git ls-files --other --exclude-standard --error-unmatch \
  70                 -- ':/*' 2>/dev/null ||
  71         {
  72                 echo "$(tput setaf 1)error: found unignored build artifacts$(tput sgr0)"
  73                 false
  74         }
  75 }
  76
  77 # Set 'exit on error' for all CI scripts to let the caller know that
  78 # something went wrong.
  79 # Set tracing executed commands, primarily setting environment variables
  80 # and installing dependencies.
  81 set -ex
  82
  83 # When building a PR, TRAVIS_BRANCH refers to the *target* branch. Not what we
  84 # want here. We want the source branch instead.
  85 CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
  86
  87 cache_dir="$HOME/travis-cache"
  88 good_trees_file="$cache_dir/good-trees"
  89
  90 mkdir -p "$cache_dir"
  91
  92 skip_branch_tip_with_tag
  93 skip_good_tree
  94
  95 if test -z "$jobname"
  96 then
  97         jobname="$TRAVIS_OS_NAME-$CC"
  98 fi
  99
 100 export DEVELOPER=1
 101 export DEFAULT_TEST_TARGET=prove
 102 export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
 103 export GIT_TEST_OPTS="--verbose-log -x --immediate"
 104 export GIT_TEST_CLONE_2GB=YesPlease
 105 if [ "$jobname" = linux-gcc ]; then
 106         export CC=gcc-8
 107 fi
 108
 109 case "$jobname" in
 110 linux-clang|linux-gcc)
 111         export GIT_TEST_HTTPD=YesPlease
 112
 113         # The Linux build installs the defined dependency versions below.
 114         # The OS X build installs the latest available versions. Keep that
 115         # in mind when you encounter a broken OS X build!
 116         export LINUX_P4_VERSION="16.2"
 117         export LINUX_GIT_LFS_VERSION="1.5.2"
 118
 119         P4_PATH="$HOME/custom/p4"
 120         GIT_LFS_PATH="$HOME/custom/git-lfs"
 121         export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH"
 122         ;;
 123 osx-clang|osx-gcc)
 124         # t9810 occasionally fails on Travis CI OS X
 125         # t9816 occasionally fails with "TAP out of sequence errors" on
 126         # Travis CI OS X
 127         export GIT_SKIP_TESTS="t9810 t9816"
 128         ;;
 129 GIT_TEST_GETTEXT_POISON)
 130         export GIT_TEST_GETTEXT_POISON=YesPlease
 131         ;;
 132 esac