Fix problems in CI failures (travis and semaphore)

In the Makefile.am, switched out the fetch (which can have auth problems
in certain envs) with a simple branch per @perlpunk++'s suggestion.

With the new test branches, travis had a problem in that it only clones
one branch and we need the other branch refs to be available. Fixed this
by fetching the other branch refs. I also cleaned up the travis YAML
file.

The Ubuntu 14.04 docker image (used by semaphoreci) had an older git,
without the worktree command, so I made it install the latest git from a
ppa.

Renamed tests/run-tests.sh to tests/run-all-tests.sh for tab completion
conflict reasons.

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/run-all-tests.sh b/tests/run-all-tests.sh
new file mode 100755
index 0000000..9c92741
--- /dev/null
+++ b/tests/run-all-tests.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -e
+
+main() {
+  # Autoconf based in-source build and tests
+  clean
+
+  ./bootstrap
+  ./configure
+  make test-all
+
+  # CMake based in-source build and tests
+  clean
+
+  cmake .
+  make
+  make test
+
+  clean
+}
+
+clean() {
+  git clean -d -x -f
+  rm -fr tests/run-test-suite
+  git worktree prune
+}
+
+main "$@"