From: Johannes Schindelin <johannes.schindelin@xxxxxx>
When building a PR, TRAVIS_BRANCH refers to the *target branch*.
Therefore, if a PR targets `master`, and `master` happened to be tagged,
we skipped the build by mistake.
Fix this by using TRAVIS_PULL_REQUEST_BRANCH (i.e. the *source branch*)
when available, falling back to TRAVIS_BRANCH (i.e. for CI builds, also
known as "push builds").
Let's give it a new variable name, too: CI_BRANCH (as it is different
from TRAVIS_BRANCH). This also prepares for the upcoming patches which
will make our ci/* code a bit more independent from Travis and open it
to other CI systems (in particular to Azure Pipelines).
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
ci/lib-travisci.sh | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/ci/lib-travisci.sh b/ci/lib-travisci.sh
index 69dff4d1ec..c26bb6a274 100755
--- a/ci/lib-travisci.sh
+++ b/ci/lib-travisci.sh
@@ -1,22 +1,25 @@
# Library of functions shared by all CI scripts
+# When building a PR, TRAVIS_BRANCH refers to the *target* branch. Not what we
+# want here. We want the source branch instead.
+CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
+
skip_branch_tip_with_tag () {
# Sometimes, a branch is pushed at the same time the tag that points
# at the same commit as the tip of the branch is pushed, and building
# both at the same time is a waste.
#
- # Travis gives a tagname e.g. v2.14.0 in $TRAVIS_BRANCH when
- # the build is triggered by a push to a tag. Let's see if
- # $TRAVIS_BRANCH is exactly at a tag, and if so, if it is
- # different from $TRAVIS_BRANCH. That way, we can tell if
- # we are building the tip of a branch that is tagged and
- # we can skip the build because we won't be skipping a build
- # of a tag.
-
- if TAG=$(git describe --exact-match "$TRAVIS_BRANCH" 2>/dev/null) &&
- test "$TAG" != "$TRAVIS_BRANCH"
+ # When the build is triggered by a push to a tag, $CI_BRANCH will
+ # have that tagname, e.g. v2.14.0. Let's see if $CI_BRANCH is
+ # exactly at a tag, and if so, if it is different from $CI_BRANCH.
+ # That way, we can tell if we are building the tip of a branch that
+ # is tagged and we can skip the build because we won't be skipping a
+ # build of a tag.
+
+ if TAG=$(git describe --exact-match "$CI_BRANCH" 2>/dev/null) &&
+ test "$TAG" != "$CI_BRANCH"
then
- echo "$(tput setaf 2)Tip of $TRAVIS_BRANCH is exactly at $TAG$(tput sgr0)"
+ echo "$(tput setaf 2)Tip of $CI_BRANCH is exactly at $TAG$(tput sgr0)"
exit 0
fi
}
--
gitgitgadget
