Closes Homebrew/homebrew#35266.

test_defined? gets defined in the method_added hook.

Also, tweak the XQuartz requirement to not show 0.0.0 versions being required.

Closes Homebrew/homebrew#35254.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Fixes Homebrew/homebrew#35143.
Closes Homebrew/homebrew#35239.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Test everything that `brew uses` a formula, has a bottle and a test.

This should allow some quick gains in terms of spotting formulae that may need
revisioned to avoid problems with shifting dependencies. As the test-bot lives
in a data centre with (very) fast internet the fetch and extraction time
shouldn't slow things down much.

Closes Homebrew/homebrew#35092.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Dependency names are prefixed with the tap location, therefore
dependency names do not match formula names. We convert dependencies
into formulas to ensure proper name checking.

Closes Homebrew/homebrew#35058.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

`opam list <package>` only checks if the package is available

Closes Homebrew/homebrew#35209.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

http://www.rubydoc.info/gems/yard/file/docs/Tags.md#private
http://www.rubydoc.info/gems/yard/file/docs/Tags.md#api

Closes Homebrew/homebrew#35142.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

This deprecates URLs that begin with the following fake URL schemes:
  bzr://
  cvs://
  hg://
  fossil://
  svn+http://

Despite their appearance, they are not actually accepted by the
corresponding tools. They exist only as hints to the download strategy
detection code, and are stripped from the URL before the URL is handed
off to the VCS program.

This is not documented, and may lead one to believe it is a valid URL
that can be used elsewhere, when it actually only works inside Homebrew.

We have a better mechanism for specifying the download strategy that is
straightforward and explicit:
  :using => :hg

Recommend that instead.

Closes Homebrew/homebrew#35114.

Closes Homebrew/homebrew#35080.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

@gapple has taken the mantle of brew services: https://github.com/Homebrew/homebrew/issues/28657#issuecomment-58318215



Closes Homebrew/homebrew#35090.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

This reverts commit f4fe50a0958b7b47b32041e11d4943d6ae7d3972.

See https://gcc.gnu.org/onlinedocs/gcc/Environment-Variables.html

Closes Homebrew/homebrew-versions#592.