[PATCH v2 0/4] Add Travis CI support

From: Lars Schneider <larsxschneider@gmail.com>

diff to v1:
* improve readabilty of Travis "before_script" section
* make OS X Perforce brew robust against changing Perforce builds [1]
* add a prereq to detect OS X in tests
* fix t9815 git-p4-submit-fail test case on OS X
* disable t9819 git-p4-case-folding test on OS X

Thanks Junio for the feedback. You are right, I should have fixed the failing tests in the first place. With this patch all tests pass on Linux and OS X: https://travis-ci.org/larsxschneider/git/builds/83575208

In a subsequent patch I plan to:
* add cvs to run t94?? tests
* add svn to run t91?? tests
* add apache to run 5539, 5550, and 5561
* investigate if it is possible to run t1509 root worktree test
* investigate if it is possible to add jgit to run t5310

Plus I have the following questions:
* Can you explain to me how the t7006 page tests should be executed?
* Should we enable EXPENSIVE, CLONE_2GB, and USE_LIBPCRE flag?

Thanks, Lars

[1] This is a workaround. I am in contact about the issue with the homebrew maintainers and maybe we can make this easier soon: https://github.com/Homebrew/homebrew-binary/pull/267#issuecomment-145317114

Lars Schneider (4):
  Add Travis CI support
  Add prereq to detect OS X
  git-p4: Fix t9815 git-p4-submit-fail test case on OS X
  git-p4: Disable t9819 git-p4-case-folding test on OS X

 .travis.yml                    | 31 +++++++++++++++++++++++++++++++
 t/t9815-git-p4-submit-fail.sh  |  8 ++++++--
 t/t9819-git-p4-case-folding.sh |  5 +++++
 t/test-lib.sh                  |  5 ++++-
 4 files changed, 46 insertions(+), 3 deletions(-)
 create mode 100644 .travis.yml

-- 2.5.1