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-rwxr-xr-xci/lib-travisci.sh47
-rwxr-xr-xci/run-linux32-docker.sh2
-rwxr-xr-xci/run-static-analysis.sh2
-rwxr-xr-xci/run-tests.sh2
-rwxr-xr-xci/run-windows-build.sh2
-rwxr-xr-xci/test-documentation.sh2
6 files changed, 57 insertions, 0 deletions
diff --git a/ci/lib-travisci.sh b/ci/lib-travisci.sh
index 197aa14..bade716 100755
--- a/ci/lib-travisci.sh
+++ b/ci/lib-travisci.sh
@@ -21,6 +21,52 @@ skip_branch_tip_with_tag () {
fi
}
+good_trees_file="$HOME/travis-cache/good-trees"
+
+# Save some info about the current commit's tree, so we can skip the build
+# job if we encounter the same tree again and can provide a useful info
+# message.
+save_good_tree () {
+ echo "$(git rev-parse $TRAVIS_COMMIT^{tree}) $TRAVIS_COMMIT $TRAVIS_JOB_NUMBER $TRAVIS_JOB_ID" >>"$good_trees_file"
+ # limit the file size
+ tail -1000 "$good_trees_file" >"$good_trees_file".tmp
+ mv "$good_trees_file".tmp "$good_trees_file"
+}
+
+# Skip the build job if the same tree has already been built and tested
+# successfully before (e.g. because the branch got rebased, changing only
+# the commit messages).
+skip_good_tree () {
+ if ! good_tree_info="$(grep "^$(git rev-parse $TRAVIS_COMMIT^{tree}) " "$good_trees_file")"
+ then
+ # Haven't seen this tree yet, or no cached good trees file yet.
+ # Continue the build job.
+ return
+ fi
+
+ echo "$good_tree_info" | {
+ read tree prev_good_commit prev_good_job_number prev_good_job_id
+
+ if test "$TRAVIS_JOB_ID" = "$prev_good_job_id"
+ then
+ cat <<-EOF
+ $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
+ This commit has already been built and tested successfully by this build job.
+ To force a re-build delete the branch's cache and then hit 'Restart job'.
+ EOF
+ else
+ cat <<-EOF
+ $(tput setaf 2)Skipping build job for commit $TRAVIS_COMMIT.$(tput sgr0)
+ This commit's tree has already been built and tested successfully in build job $prev_good_job_number for commit $prev_good_commit.
+ The log of that build job is available at https://travis-ci.org/$TRAVIS_REPO_SLUG/jobs/$prev_good_job_id
+ To force a re-build delete the branch's cache and then hit 'Restart job'.
+ EOF
+ fi
+ }
+
+ exit 0
+}
+
# Set 'exit on error' for all CI scripts to let the caller know that
# something went wrong.
# Set tracing executed commands, primarily setting environment variables
@@ -30,6 +76,7 @@ set -ex
mkdir -p "$HOME/travis-cache"
skip_branch_tip_with_tag
+skip_good_tree
if test -z "$jobname"
then
diff --git a/ci/run-linux32-docker.sh b/ci/run-linux32-docker.sh
index 3a8b2ba..870a412 100755
--- a/ci/run-linux32-docker.sh
+++ b/ci/run-linux32-docker.sh
@@ -22,3 +22,5 @@ docker run \
--volume "${HOME}/travis-cache:/tmp/travis-cache" \
daald/ubuntu32:xenial \
/usr/src/git/ci/run-linux32-build.sh $(id -u $USER)
+
+save_good_tree
diff --git a/ci/run-static-analysis.sh b/ci/run-static-analysis.sh
index 68dd0f0..fe4ee4e 100755
--- a/ci/run-static-analysis.sh
+++ b/ci/run-static-analysis.sh
@@ -6,3 +6,5 @@
. ${0%/*}/lib-travisci.sh
make coccicheck
+
+save_good_tree
diff --git a/ci/run-tests.sh b/ci/run-tests.sh
index ccdfc2b..eb5ba40 100755
--- a/ci/run-tests.sh
+++ b/ci/run-tests.sh
@@ -7,3 +7,5 @@
ln -s $HOME/travis-cache/.prove t/.prove
make --quiet test
+
+save_good_tree
diff --git a/ci/run-windows-build.sh b/ci/run-windows-build.sh
index 8699926..d99a180 100755
--- a/ci/run-windows-build.sh
+++ b/ci/run-windows-build.sh
@@ -99,3 +99,5 @@ gfwci "action=log&buildId=$BUILD_ID" | cut -c 30-
# Set exit code for TravisCI
test "$RESULT" = "success"
+
+save_good_tree
diff --git a/ci/test-documentation.sh b/ci/test-documentation.sh
index 7a0a848..3d62e6c 100755
--- a/ci/test-documentation.sh
+++ b/ci/test-documentation.sh
@@ -25,3 +25,5 @@ sed '/^GIT_VERSION = / d' stderr.log
! test -s stderr.log
test -s Documentation/git.html
grep '<meta name="generator" content="Asciidoctor ' Documentation/git.html
+
+save_good_tree