[jenkins-ci PATCH 0/8] lcitool: Support MinGW cross-build Dockerfiles

[Andrea Bolognani]

More details in the commit message for patch 7/8.

Pavel pointed out today that the current method of triggering MinGW
builds using our CI scaffolding, eg.

  $ make ci-build at fedora-30 CI_CONFIGURE=mingw64-configure

is easy to get wrong and not very discoverable, so I took that as
motivation to implement a change that I had been thinking about for
a long time anyway. The new usage will be

  $ make ci-build at fedora-30-cross-mingw64

which aligns with how we're already doing cross-builds for other
architectures and is discoverable via 'make ci-list-images'.

The implementation is not the prettiest, but the Dockerfile
generator in general could use some love so I don't think this
improvement should be blocked because of that; I'll try to spend
some time refactoring and cleaning up once this has been merged.

Andrea Bolognani (8):
  lcitool: Introduce cross_arch local variable
  lcitool: Change check for pip_pkgs formatting
  lcitool: Separate computation and formatting
  lcitool: Introduce _dockerfile_format()
  lcitool: Introduce _dockerfile_build_varmap()
  lcitool: Add RPM-specific _dockerfile_build_varmap() variant
  lcitool: Support MinGW cross-build Dockerfiles on Fedora
  lcitool: Add more checks to _action_dockerfile()

 guests/lcitool | 219 ++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 172 insertions(+), 47 deletions(-)

-- 
2.24.1