Tini ignores certain signals, and blocks others, but in both cases
we restore them before executing the child process.
Add tests to ensure that we actually do that!
Using the child subreaper mechanism, we can actually run
tests inside the CI environment without depending on Docker.
While this does not replace the existing tests, it allows
at least some functional coverage within CI.
This allows the use of `tini` within even more minimal environments (such as images that are `FROM scratch` with a single application binary `COPY`'d in).
On Travis, Cmake does not run from the same directory as in our local
build environment. We need to ensure that PATH contains absolute paths
so that Cmake can find our stub rpmbuild.
Travis uses Ubuntu Precise, which has CMake 3.8. That version does not
have support for excluding /usr and /usr/bin from the %files% list
(which results in a package that conflicts with the filesystem package
and fails to install).
This commit:
+ Builds on Precise instead of Trusty
+ Adds install tests
Thomas Orozco
Tianon Gravi