Run only on push to branch coverity-scan. We can use a cron script to do
this 4 times a week (that's our allowance).
NOTE: possible future improvements are:
1. Fold the build matrix item into another short one so we don't overburden
travis. It's a little less clear but it should be nicer on the
infrastructure.
2. Change the security token, one can do that from the coverity admin page.
3. Don't do the naive `make depend`, but use the prebuilt libraries.
- Add a 'expect' utility script that can run simple API tests using clients
developed for any platform.
- Extend travis build matrix to run API tests using the python client and
valgrind.
This script can be used to write API tests without having to manage nvim's
lifetime:
- It starts a single nvim instance listening on a known socket
- Invokes the test runner, which should connect to NEOVIM_LISTEN_ADDRESS
- The nvim instance started by the script provides a `BeforeEachTest` function,
which should be called before each test to reset nvim to a clean state.
- It takes care of shutting down nvim once the tests are finished.
As explained
[here](https://github.com/neovim/neovim/pull/737#issuecomment-43941520), it's
not possible to fully reset nvim to it's initial state, but the `BeforeEachTest`
function should be enough for most test cases. Tests requiring a fully clean
nvim instance should take care of starting/stopping nvim.
- Build targeting 32-bit with travis
- Code in `before_install`/`after_success` was moved to travis.sh since it
provides greater flexibility for detecting the build matrix environment. This
improves the build speed since we now install only what's necessary.
- Now clint has a dedicated travis worker
- Valgrind configuration removed
- Fix errors reported by the undefined behavior sanitizer
- Travis will now run two build steps:
- A normal build of a shared library for unit testing(in parallel with gcc)
- A clang build with some sanitizers enabled for integration testing.
After these changes travis will run much faster, while providing valgrind-like
error detection.
