This way analytics related settings and parameters (currently
analyticsdisabled, analyticsmessage and analyticsuuid) are all kept in
the same place.

Note that in this commit we offer a path of migration: if
~/.homebrew_analytics_user_uuid already exists, read the UUID from it,
write to homebrew.analyticsuuid, and remove it.

See more detailed discussions in #145.

Closes #162.

Signed-off-by: Martin Afanasjew <martin@afanasjew.de>

* Clarify opt-out commands

* Partially rewrite opt-out paragraph

* add Language::Node helper module

This adds a language module for Node module based formulas.
It contains the 2 public methods `std_npm_install_args(libexec)` and
`local_npm_install_args`:

* `std_npm_install_args` is intended to be used in formulas for
  standard node modules and returns `npm install` args for a global
  style module installation to libexec.
* `local_npm_install_args` is for formulas, in which the `npm install`
  step is only one of multiple parts of the installation process and
  returns `npm install` args for a default local installation in place.

Both methods have in common, that they are

* making sure that a working copy of npm and node-gyp from node's
  libexec is prepended to the PATH (to not rely of a user managed npm)
* seting the npm cache to HOMEBREW_CACHE/npm, which fixes issues caused
  by overriding $HOME resulting in long install times + high disk usage
  (see https://github.com/Homebrew/brew/pull/37#issuecomment-208840366)

* audit: update npm install check for Language::Node

* cleanup: remove npm_cache too

* doc: add Node-for-Formula-Authors.md

This prevents `brew` self-calls from interacting with the stickiness of
HOMEBREW_NO_ANALYTICS being persisted to the brew repo and accidentally
disabling analytics permanently when it should have been for just one run,
while restoring the stickiness of an explicit user-supplied
HOMEBREW_NO_ANALYTICS.

DO not invoke git config because HOMEBREW_NO_ANALYTICS, otherwise
it will disable analytics for everyone when running `brew update`
in following manners:
 * `brew update` will set HOMEBREW_NO_ANALYTICS because the absence of
   `homebrew.analyticsmessage`
 * `brew update-report` will set `homebrew.analyticsdisabled` because of
    HOMEBREW_NO_ANALYTICS.

Also reduce file IO.

Closes #128.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

Closes #150.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

Closes #149.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

Provide a single command that can be run to disable analytics, run it if
`HOMEBREW_NO_ANALYTICS` is ever set and remove the user UUID file in
that case too.

References https://github.com/Homebrew/brew/issues/142.

Make sure that users are notified on the first run of `brew update`
after we enabled analytics about how it works and how to opt-out. This
will be shown to all users who have not already seen this message from
`brew update` or through a new Homebrew installation.

References https://github.com/Homebrew/install/pull/42
References https://github.com/Homebrew/brew/issues/142

Sometimes they are in e.g. libexec but there's no real reason to assume
they are anywhere; we want to relocate them regardless.

For more information and opt-out instructions please read:
https://github.com/Homebrew/brew/blob/master/share/doc/homebrew/Analytics.md#analytics

Closes #118.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>

This will be expanded to a full expat dependency on Tiger alone.

Fixes mistydemeo/tigerbrew#30.

Setting -mcpu and -mtune on Tiger with gcc-4.2 exposes a bug in one of the
system headers, causing certain builds to fail. This can be fixed by
adding -faltivec to CFLAGS.

See: http://trac.macports.org/ticket/34213

Fixes mistydemeo/tigerbrew#207.
Fixes mistydemeo/tigerbrew#330.

Fixes mistydemeo/tigerbrew#37.

Fixes mistydemeo/tigerbrew#365.

The new stage() signature introduced by #66 breaks back-compatibility
under Ruby 1.8.7. This fixes it by switching back to a one-argument
block signature and using a new class to wrap both the Resource and
Mktemp info for the staging context, in a signature-back-compatible
way.

Addresses homebrew/homebrew-core#529.

Closes #135.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

We want to always avoid merge commits being committed to Homebrew so
this feels like a better fit.

Make multiple replacements if using the block form.

It simplifies the number of commands and it's now an officially
supported command again.

Closes #119.

Signed-off-by: Martin Afanasjew <martin@afanasjew.de>

Since switching from `system` to `Utils.popen_read` we no longer need to
suppress Ruby's output of `Syntax OK` to `$stdout`.

Previously, syntax warnings were printed, but didn't cause `readall` to
exit with a non-zero exit code. Now they do, making it easier to catch
accidentally introduced syntax warnings in the test bot.

The current one returns a 404.

Reorders the PR submission steps so `brew audit` is done after `brew install`,
so it can pick up issues with the installed formula, like non-executable stuff
in `bin/`. Matches the `test-bot` process better.

Minor style changes, including consistently using periods at the end of list items
which are complete imperative sentences.

Closes #127.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

Makes identifying which line in a formula has the bad use of 'option' easier.

Closes #120.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

This collects all violations for each formula in a single place, instead
of doing `brew style` outputs for all formulae first, and then the other
audit checks.

Closes #112.

Signed-off-by: Andrew Janke <andrew@apjanke.net>