This is an internal method, but is called a bunch of times in
performance-critical codepaths, and is ultra slow because the constant
is interpoplated into the Regexp each time the method is called.
Alas, this has been fixed in Ruby 1.9+.
This was meant to support:
env do |req|
append_path 'PATH', req.some_method
...
end
i.e., the block was evaluated in the context of ENV. But it turned out
to be not so useful after all, so I'm ripping it out before something
actually depends on it.
* CPU functions now exist in Hardware::CPU
* Added compatibility functions in compat/hardware_compat.rb
* Names are less specific to Mac hardware, e.g. CPU.family instead of
Hardware.intel_family
* Hardware::CPU.family works for both Intel and PowerPC
* New helper methods on CPU, like .sse4? and .altivec?
Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
Not thread safe! But I don't think we care.
We want to evaluate the env DSL block in the context of ENV for asthetic
reasons, but we also want access to methods on the requirement instance.
We can use #instance_exec to pass the requirement itself into the block:
class Foo < Requirement
env do |req|
append 'PATH', req.some_path
end
def some_path
which 'something'
end
end
Also add a simplified version of Object#instance_exec for Ruby 1.8.6.
Ruby 1.8.6 doesn't have Symbol#to_proc, which allows things like
map(&:to_s) rather than map { |o| o.to_s }. 1.8.7 does, though, and
since it is used in a bunch of the superenv code we should attempt to
keep it compatible with 1.8.6.
ClosesHomebrew/homebrew#16046.
The option `du -s` is equivalent to `du -d0`. The former is a POSIX standard
(IEEE Std 1003.1-2008), whereas the latter is a BSD extension.
From the BSD man page:
`-s Display an entry for each specified file. (Equivalent to -d 0)`
From SUSv4:
`-s Instead of the default output, report only the total sum for each of the specified files.`
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/du.htmlClosesHomebrew/homebrew#16516.
Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>
