Merge branch 'sg/travis-fixes' into maint

TravisCI build updates.

* sg/travis-fixes:
  travis-ci: don't build Git for the static analysis job
  travis-ci: fix running P4 and Git LFS tests in Linux build jobs

.travis.yml

@@ -71,7 +71,7 @@ matrix:
           packages:
           - coccinelle
       before_install:
-      # "before_script" that builds Git is inherited from base job
+      before_script:
       script: ci/run-static-analysis.sh
       after_failure:
     - env: Documentation

ci/install-dependencies.sh

@@ -12,20 +12,18 @@ case "${TRAVIS_OS_NAME:-linux}" in
 linux)
 	export GIT_TEST_HTTPD=YesPlease
 
-	mkdir --parents custom/p4
-	pushd custom/p4
+	mkdir --parents "$P4_PATH"
+	pushd "$P4_PATH"
 		wget --quiet "$P4WHENCE/bin.linux26x86_64/p4d"
 		wget --quiet "$P4WHENCE/bin.linux26x86_64/p4"
 		chmod u+x p4d
 		chmod u+x p4
-		export PATH="$(pwd):$PATH"
 	popd
-	mkdir --parents custom/git-lfs
-	pushd custom/git-lfs
+	mkdir --parents "$GIT_LFS_PATH"
+	pushd "$GIT_LFS_PATH"
 		wget --quiet "$LFSWHENCE/git-lfs-linux-amd64-$LINUX_GIT_LFS_VERSION.tar.gz"
 		tar --extract --gunzip --file "git-lfs-linux-amd64-$LINUX_GIT_LFS_VERSION.tar.gz"
 		cp git-lfs-$LINUX_GIT_LFS_VERSION/git-lfs .
-		export PATH="$(pwd):$PATH"
 	popd
 	;;
 osx)

ci/lib-travisci.sh

@@ -26,3 +26,11 @@ skip_branch_tip_with_tag () {
 set -e
 
 skip_branch_tip_with_tag
+
+case "${TRAVIS_OS_NAME:-linux}" in
+linux)
+	P4_PATH="$(pwd)/custom/p4"
+	GIT_LFS_PATH="$(pwd)/custom/git-lfs"
+	export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH"
+	;;
+esac