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

If an integer is passed to `brew-pull`, such as `brew pull 6600`, it will be
interpreted as a pull request number. This has the same effect as the more
verbose command line:

    brew pull https://github.com/mxcl/homebrew/pull/6600

I believe this fixes it though I confess I didn't test. The guy who opened this issue is the expert.

Closes Homebrew/homebrew#7101.

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

Deprecated use_clang? etc. since the logic was such that multiple states could be set, when in reality only one compiler can be set.

Changed fails_with_llvm handling so if HOMEBREW_USE_LLVM is set then it tries to build even if the formula has fails_with_llvm set. Rationale: mostly they will no longer fail and we need to catch these cases.

Also tidied it up a little, reducing duplication as per original patch.

The SSL certificates on this old version of OS X are outdated and who knows if Apple will fix them.

Fixes Homebrew/homebrew#6103.

Removed updated external commands, like seriously, who cares? We could add it back as if --verbose is set I guess but in all honesty, if nobody complains then nobody cared.

# We removed many redundant comments
Removed many redundant comments.

Fixes Homebrew/homebrew#7191; though it could be fixed better.

Fixes Homebrew/homebrew#7220.

Additionally, add '--build-from-source' to the bash-completion script.

Additionally, document the '--build-from-source' option for the
`install` command.

Rationale: if you edit a formula to use a different source URL it should build that and not the pour the bottle. Obviously.

Rationale: more typical.

Leopard runs Ruby 1.8.6 while Snow Leopard runs 1.8.7 and `Array.count` was not
introduced until 1.8.7.

Using `Array.length` instead.

This is more flexible for forks and personal customisations, and also more useful for us collaborators since the origin HEAD will be kept up-to-date.

A little cheeky but it should help us to maintain higher quality.

Fixes Homebrew/homebrew#7185.

Let an environment variable, HOMEBREW_MAKE_JOBS, override the default
'-j<cores>' make flag.

Now we can more easily debug formula that normally build in parallel, or
(potentially) speed up lengthy builds.

I believe this works nowadays. When I created Homebrew originally, it did nothing. Hence all the other logic.

Remove cairo dep from gtk formula as a consequence.

It was just confusing, and since the `brew upgrade` refactor this makes more sense too.

Shame it still downloads in there etc. but whatever. Homebrew 2 will fix!

Will be useful for a variety of reasons, but for now, I'm just using it to ensure install won't install again if something is already installed (use brew upgrade instead).

But means that brew switch and that can work properly etc.

Bottles now pour purely, without doing all the other unnecessary stuff that happened before the `brew upgrade` code shuffle.

Formula.pourable? removed since it was install-specific metadata and not related to the formula itself. Now all such logic is in the FormulaInstaller which is much cleaner.

I also changed the bottle cache location to the normal directory and added a .bottle pre-extension. Thus you can see everything in one directory without messing about.

Consequence: you can no longer install when something is already installed, you must upgrade it. This doesn't apply if the formula in question was unlinked. You can still --force installs though.

Rationale: the old way of installing over the top would leave symlinks to multiple versions in /usr/local if the old version had a file the newer version didn't. The new upgrade command handles everything properly.

HOMEBREW_PREFIX for example.

It just means nobody knows what is being done without scrolling up and down, up and down the file like a doofus on a pogo stick.

Finder activity such as moving the position of an icon can create an unexpected
.DS_Store file in a Cellar directory. This causes `brew remove --force` to throw
an error that is reported as

Error: Directory not empty - /usr/local/Cellar/<formula>

This fix avoids that error, by calling rmtree rather than rmdir.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>