Closes Homebrew/homebrew#47041.

Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>

I've set all the variable data to versions that are dependent on the
latest source file date and various modification dates also to the
latest source file date. With this if you rerun `brew bottle`
multiple times in a row you will see the same checksum even if you have
`brew reinstall`ed (as long as upstream does not hardcode e.g. the
build date).

I debugged this with diffoscope and worked on this as part of the
Athens 2015 reproducible builds workshop:
https://reproducible-builds.org/events/athens2015/



Closes Homebrew/homebrew#46587.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

This means that dependencies can be merged but still maintain all
their option names.

Closes Homebrew/homebrew#46916.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

This test will obviously fail but it does mark that the option names
are not being merged correctly.

Both `req.tags.include?(:run)` and `req.run?` are currently equivalent,
but the latter relies less on implementation details.

Without this the returned string is not as accurate if the method is
called with an int larger than 120.

Closes Homebrew/homebrew#47002.

Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>

Fixes Homebrew/homebrew#46984.

Also use `popen_read` instead of `safe_system` for cleaner argument
passing and write the output with `atomic_write`.

Closes Homebrew/homebrew#46826.

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

Users with local changes and without a configured Git identity won't be
able to update Homebrew via `brew update`, as the update will fail when
trying to stash the local modifications with `git stash`. They will be
unable to proceed until they follow Git's advice to configure their
identity or they manage to revert their local changes.

This change always sets a commit e-mail and name, avoiding this issue. A
nice bonus is that experienced Git users can see who created the stash
commit (identifying `brew update` as the author).

Fixes Homebrew/homebrew#46930.

Closes Homebrew/homebrew#46939.

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

All other commands document both `--dry-run` and `-n` in the option
description and mention only `--dry-run` in the command summary. Let's
do the same for `cleanup`.

Closes Homebrew/homebrew#46942.

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

Fix the regression introduced by Homebrew/homebrew#46735.

This reverts commit 373da8666e633b06d8a5bb98621461b700f4b2d7.

Closes Homebrew/homebrew#46822.

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

Closes Homebrew/homebrew#46867.

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

Make both `--version` and `-v` print the Homebrew version and exit, if
provided as first and sole argument. `brew --version` no longer accepts
additional arguments (they were previously ignored). Otherwise interpret
`brew -v <arguments>` as if `brew <arguments> -v` was executed instead
(no change here), but no longer print a line with the Homebrew version.

Closes Homebrew/homebrew#46790.

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

All other alternatives already don't use spaces around the pipe symbol.

Closes Homebrew/homebrew#46825.

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

Restore definition list in `COMMANDS` section, thus massively improve
formatting. In theory, `ronn` supports nested (definition) lists. In
practice, this does not work (and is unlikely to be fixed soon because
upstream seems to be rather inactive) causing the entire definition list
to be longer recognized because of a single nested list. Work around by
rearranging the `tap` documentation (sole command with a nested list).

It's still useful to do a basic test even if requirements cannot be
satisfied.

Raise an error when attempting to create universal binaries with a GCC
that can't do so.

Closes Homebrew/homebrew#46630.

Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>

Refs caskroom/homebrew-cask#15381

Closes Homebrew/homebrew#46845.

So we can remove the formula installation from `brew.rb`.

Closes Homebrew/homebrew#46843.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

`Formula-Cookbook.md` contains leftover git conflict markers introduced
in 15f291ddaa05cc010456a733b799382175c29dd4.

This commit removes the conflict makers and a duplicated paragraph.

Closes Homebrew/homebrew#46836.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Closes Homebrew/homebrew#46794.

Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>

A blocker for https://github.com/caskroom/homebrew-cask/pull/15381
being merged.

Closes Homebrew/homebrew#46795.

Closes Homebrew/homebrew#46735.

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