1# Library of functions shared by all CI scripts 2 3skip_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 24good_trees_file="$HOME/travis-cache/good-trees" 25 26# Save some info about the current commit's tree, so we can skip the build 27# job if we encounter the same tree again and can provide a useful info 28# message. 29save_good_tree () { 30 echo "$(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). 39skip_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/$prev_good_job_id 62 To force a re-build delete the branch's cache and then hit 'Restart job'. 63 EOF 64 fi 65 } 66 67 exit 0 68} 69 70# Set 'exit on error' for all CI scripts to let the caller know that 71# something went wrong. 72# Set tracing executed commands, primarily setting environment variables 73# and installing dependencies. 74set -ex 75 76mkdir -p "$HOME/travis-cache" 77 78skip_branch_tip_with_tag 79skip_good_tree 80 81if test -z "$jobname" 82then 83 jobname="$TRAVIS_OS_NAME-$CC" 84fi 85 86export DEVELOPER=1 87export DEFAULT_TEST_TARGET=prove 88export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save" 89export GIT_TEST_OPTS="--verbose-log" 90export GIT_TEST_CLONE_2GB=YesPlease 91 92case "$jobname" in 93linux-clang|linux-gcc) 94 export GIT_TEST_HTTPD=YesPlease 95 96 # The Linux build installs the defined dependency versions below. 97 # The OS X build installs the latest available versions. Keep that 98 # in mind when you encounter a broken OS X build! 99 export LINUX_P4_VERSION="16.2" 100 export LINUX_GIT_LFS_VERSION="1.5.2" 101 102 P4_PATH="$HOME/custom/p4" 103 GIT_LFS_PATH="$HOME/custom/git-lfs" 104 export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH" 105 ;; 106osx-clang|osx-gcc) 107 # t9810 occasionally fails on Travis CI OS X 108 # t9816 occasionally fails with "TAP out of sequence errors" on 109 # Travis CI OS X 110 export GIT_SKIP_TESTS="t9810 t9816" 111 ;; 112GETTEXT_POISON) 113 export GETTEXT_POISON=YesPlease 114 ;; 115esac