Also allowing access results for LinkageChecker

For each dylib the keg references, print the dylib followed by the
binaries which link to it.

Closes #431.

Closes #432.

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

We now have "magic" to automatically handle `brew cask` and `brew bundle`
calls without needing to tap those taps manually beforehand. Let's reflect that
in this wording for consistency.

Closes #427.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

* updates link for installing pip
* the macruby project has been abandoned and the website is gone

Closes #410.

Signed-off-by: Xu Cheng <xucheng@me.com>

This flag is indented to be used in `homebrew/portable` to build vendor
ruby/git/curl.

Closes #419.

Shadowed by Step#time method.

Not every Linux system has a pre-installed `uuidgen` command (Debian
has a package `uuid-runtime` but doesn't install it by default). In
contrast, `/proc/sys/kernel/random/uuid` is always available on a modern
Linux system and produces type/version 4 UUIDs, just like `uuidgen`.

Closes #416.

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

Avoid writing an empty UUID to the Git configuration file and disable
analytics temporarily to avoid sending bogus data with an invalid UUID.

Closes #405.

Closes #402.

If `bin/brew` happens to be symlinked to `/brew`, `/bin/brew`, or some
similar location or (worse yet) Homebrew is installed to `/`, then
computation of the prefix and/or repository path could break down and
result in an invalid or empty path.

Closes Homebrew/homebrew-core#2430.

Closes #411.

Signed-off-by: Xu Cheng <xucheng@me.com>

Move dylib_path and bundle_path from test_mach to testing_env to
accommodate the new tests.

Closes #400.

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

This is inspired by `safe_system` with basically the same implication
(fail on error), making the name a lot less confusing and avoiding a
clash with the `chdir` function previously defined in `bin/brew`.

Closes #414.

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

This is inspired by `quiet_system` with basically the same implication
(suppress output), making the name a lot less confusing and avoiding a
clash with the `chdir` function defined in `Library/brew.sh`.

This reverts commit 3e5e14a5.

This reverts commit 62d70796.

Move dylib_path and bundle_path from test_mach to testing_env to
accommodate the new test.

Closes #400.

Signed-off-by: Tim D. Smith <git@tim-smith.us>

This commit adds a --tap option to the create command such that a user
could create a formula in a specified tap instead of the core.

The `ensure` block can be reached before the tab is modified (and thus
before `original_tab` gets populated). Avoid raising an exception when
attempting to restore a tab that hasn't been modified yet, e.g. because
relocating some of the Mach-O binaries failed.

* Fix regression caused by 05649cee
* Use `Tap#formula_file?` to filter formula.