Merge branch 'sg/travis-check-untracked'

* sg/travis-check-untracked:
  travis-ci: check that all build artifacts are .gitignore-d
  travis-ci: don't store P4 and Git LFS in the working tree

Author: gitster

ci/lib-travisci.sh

@@ -67,6 +67,16 @@ skip_good_tree () {
 	exit 0
 }
 
+check_unignored_build_artifacts ()
+{
+	! git ls-files --other --exclude-standard --error-unmatch \
+		-- ':/*' 2>/dev/null ||
+	{
+		echo "$(tput setaf 1)error: found unignored build artifacts$(tput sgr0)"
+		false
+	}
+}
+
 # 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
@@ -99,8 +109,8 @@ linux-clang|linux-gcc)
 	export LINUX_P4_VERSION="16.2"
 	export LINUX_GIT_LFS_VERSION="1.5.2"
 
-	P4_PATH="$(pwd)/custom/p4"
-	GIT_LFS_PATH="$(pwd)/custom/git-lfs"
+	P4_PATH="$HOME/custom/p4"
+	GIT_LFS_PATH="$HOME/custom/git-lfs"
 	export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH"
 	;;
 osx-clang|osx-gcc)

ci/run-linux32-docker.sh

@@ -23,4 +23,6 @@ docker run \
 	daald/ubuntu32:xenial \
 	/usr/src/git/ci/run-linux32-build.sh $(id -u $USER)
 
+check_unignored_build_artifacts
+
 save_good_tree

ci/run-tests.sh

@@ -8,4 +8,6 @@
 ln -s $HOME/travis-cache/.prove t/.prove
 make --quiet test
 
+check_unignored_build_artifacts
+
 save_good_tree

ci/test-documentation.sh

@@ -18,6 +18,9 @@ test -s Documentation/git.xml
 test -s Documentation/git.1
 grep '<meta name="generator" content="AsciiDoc ' Documentation/git.html
 
+rm -f stdout.log stderr.log
+check_unignored_build_artifacts
+
 # Build docs with AsciiDoctor
 make clean
 make --jobs=2 USE_ASCIIDOCTOR=1 doc > >(tee stdout.log) 2> >(tee stderr.log >&2)
@@ -26,4 +29,7 @@ sed '/^GIT_VERSION = / d' stderr.log
 test -s Documentation/git.html
 grep '<meta name="generator" content="Asciidoctor ' Documentation/git.html
 
+rm -f stdout.log stderr.log
+check_unignored_build_artifacts
+
 save_good_tree