Signed-off-by: Max Howell <max@methylblue.com>

Homebrew doesn't install to man, but if it's already there, we should indeed ignore it.

See Library/Contributions

For this to work the "running script" must be the formulae file. Making this
so wasn't so hard, there is now an install.rb script which is included with
the -r flag to the ruby executable. An at_exit handler calls the install
function.

Having the install logic in its own file made it feel like there was so much
space that I added extra error handling. So there is something to be said for
separating functionality out into its own files.

Still the error handling sucks, we'll need to marshall the exception back to
the bin/brew command. Which is another PITA.

Still overall I think this will prove worthwhile. But if it doesn't we'll
revert.

As a first usage, you can put a diff after __END__ and return DATA from
Formula::patches to make Homebrew aware of it.

This change also eliminates the somewhat duplicate codepath if patches
returns and Array rather than a Hash.

Signed-off-by: Max Howell <max@methylblue.com>

I didn't commit it all, apologies. But I just can't read the sections nearly as easily if you indent private and protected. If it's a Ruby convention it frankly seems at odds with the rest of Ruby spacing conventions.

Ant is a Java-based build tool. In theory, it is kind of like Make, without
Make's wrinkles and with the full portability of pure Java code.

Signed-off-by: Max Howell <max@methylblue.com>

I squashed a number of commits here, and also replaced the use of nspr.prefix with HOMEBREW_PREFIX as in theory we are flexible with our requirement for dependencies, although with the limited build system that SpiderMonkey possesses this is difficult for us to achieve anyway…

Points to eg. Cellar/wget/var rather than Cellar/wget/1.1.5/var

Discussion: 1689bbc326f1201ea979178ebcadba344abf2568

Link to @ddemaree's installer .pkg.

Renamed to Formula::class_s.

Included test this time!

Added a utility method to get an array of architecture names for
a given executable.

This will be useful for, say, figuring out what Python was compiled for,
to know what to compile a C-based module as.

Signed Off By: Max Howell <max@methylblue.com>

I added a test and made the function use `which` if the path provided is not
absolute. I considered allowing relative paths, but then it is possible for
the function to take eg. the svn binary from the current directory when you
meant the one in the path, and that could be a confusing bug.

Brew fails if a tool (make, or whatever) doesn't return an exit code
of 0. This patch displays the non-zero code on failure, so we can
better diagnose what caused the build to fail (or if we need to add
that exit code as exception 'success code'.)

Fixes Homebrew/homebrew#40

I removed this months back as I found it confusing, does it mean:

prefix+'share' or prefix+'share'+name()

But honestly, it's obvious, it's the former. It's the same as the other path
functions.

So when people do what it says and list the info we know in advance their OS
version.

Signed-off-by: Max Howell <max@methylblue.com>

I also added the essential missing `brew prune` step.

This is because I have observed two people confuse make with the "make" tool
and thus assume `brew make' is `brew install'.

`brew make' will be deprecated at 0.7, until then it shows a warning.

Only delete the file that is downloaded if an error occurs while downloading it.

Seems to be an issue with Ruby system() call doing a double fork.

Pressing CTRL-C during installs would remove the prefix but not the keg directory. brew list would then report this keg as installed, even though it was empty.

Defaulting to EDITOR, then checking for the mate command, and then using
vim as a last resort.

Signed Off By: Max Howell <max@methylblue.com>

Plain brew edit still uses Textmate though because a client that
supported a project concept is required for that particular feature.
Patches for that welcome.

I patched the patch wrongly.

Example usage:
  brew search w  # formulae containing w
  brew search ^w # formulae starting with w

No parameters lists all packages.

Also adds puts_columns to util, and uses it for output.

Signed Off By: Max Howell <max@methylblue.com>

I changed the command from 'available' to search because this is more similar
to how other tools call this function.

The short form is -S, which is the "pacman" tool equivalent.

For when we optimize too much and things seem to break. In my experience the
GCC optimizer is pretty safe nowadays, but at least this allows you to test
the hypothesis the optimization is breaking the build.

Means unshift doesn't work, but well, that's almost a feature :P

New method which uses RubyCocoa with the FSEvents API from Rucola to watch if
files aren't installed outside the Homebrew prefix. Right now the paths being
watched are: /System, /usr, /etc, /sbin, /bin, and /Applications.

Signed Off By: Max Howell <max@methylblue.com>

I realised that -msse4.1 and -msse4.2 aren't supported by GCC 4.0, so I made
the brash decision that we require GCC 4.2. It comes with Xcode 3.1 so people
can upgrade if they have to.

Requiring a single compiler is better for us anyway -- less possible errors
and failures.

Formulae can still request gcc-4.0.1, but at least then those formulae still
only use a single compiler and not possibly two.

Still too long, but it reads marginally better.

The fix is to error out if GCC isn't installed, and to ensure we aren't
setting CC and CXX to something that doesn't exist.