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docs: update FAQ and Installation.

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Make some miscellaneous updates to stuff I noticed was wrong.
This commit is contained in:
Mike McQuaid 2018-04-07 21:07:24 +01:00
parent 94c0d833c3
commit 58c7d32183
2 changed files with 16 additions and 20 deletions
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31
docs/FAQ.md
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@ -26,7 +26,7 @@ To allow that formulae to update again:
brew unpin <formula>
Note that pinned, outdated formulae that are depended on by another formula will be upgraded when required as we do not allow formulae to be built against non-latest versions.
Note that pinned, outdated formulae that are depended on by another formula need to be upgraded when required as we do not allow formulae to be built against non-latest versions.
## How do I uninstall old versions of a formula?
By default, Homebrew does not uninstall old versions of a formula, so
@ -55,7 +55,7 @@ and run `./uninstall --help` to view more uninstall options.
## How do I uninstall a formula?
If you do not uninstall all of the versions that Homebrew has installed,
Homebrew will continue to attempt to install the newest version it knows
about when you run `brew upgrade --all`. This can be surprising.
about when you run `brew upgrade`. This can be surprising.
To remove a formula entirely, you may run `brew uninstall formula_name --force`.
@ -125,9 +125,9 @@ Or:
fix this for Homebrew formulae (although we don’t always test for
it), but you’ll find that many RubyGems and Python setup scripts
break which is something outside our control.
3. **It’s safe**<br>Apple has left this directory for us. Which means
there is no `/usr/local` directory by default, so there
is no need to worry about messing up existing tools.
3. **It’s safe**<br>Apple has assigned this directory for non-system utilities. Which means
there is no files in `/usr/local` by default, so there
is no need to worry about messing up existing or system tools.
**If you plan to install gems that depend on
brews then save yourself a bunch of hassle and install to
@ -139,21 +139,16 @@ It is not always straightforward to tell `gem` to look in non-standard directori
**tl;dr** Sudo is dangerous, and you installed TextMate.app without sudo
anyway.
Homebrew is designed to work without using sudo. You can decide to use
it but we strongly recommend not to do so. If you have used sudo and run
into a bug then this is likely to be the cause. Please don’t file a bug
report unless you can reproduce it after reinstalling Homebrew from
scratch without using sudo.
Homebrew refuses to work using sudo.
You should only ever sudo a tool you trust. Of course, you can trust
Homebrew ;) But do you trust the multi-megabyte Makefile that Homebrew
runs? Developers often understand C++ far better than they understand
make syntax. It’s too high a risk to sudo such stuff. It could break
your base system, or alter it subtly.
You should only ever sudo a tool you trust. Of course, you can trust Homebrew
;) But do you trust the multi-megabyte Makefile that Homebrew runs? Developers
often understand C++ far better than they understand make syntax. It’s too high
a risk to sudo such stuff. It could modify (or upload) any files on your
system.And indeed, we’ve seen some build scripts try to modify `/usr` even when
the prefix was specified as something else entirely.
And indeed, we’ve seen some build scripts try to modify
`/usr` even when the prefix was specified as something else
entirely.
We use the macOS sandbox to stop this but this doesn't work when run as the `root` user (which also has read and write access to almost everything on the system).
Did you `chown root /Applications/TextMate.app`? Probably
not. So is it that important to `chown root wget`?

5
docs/Installation.md
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@ -11,7 +11,7 @@ it does it too. And you have to confirm everything it will do before it starts.
## Requirements
* An Intel CPU <sup>[1](#1)</sup>
* OS X 10.10 or higher <sup>[2](#2)</sup>
* OS X 10.11 or higher <sup>[2](#2)</sup>
* Command Line Tools (CLT) for Xcode: `xcode-select --install`,
[developer.apple.com/downloads](https://developer.apple.com/downloads) or
[Xcode](https://itunes.apple.com/us/app/xcode/id497799835) <sup>[3](#3)</sup>
@ -24,6 +24,7 @@ Just extract (or `git clone`) Homebrew wherever you want. Just
avoid:
* Directories with names that contain spaces. Homebrew itself can handle spaces, but many build scripts cannot.
* `/tmp` subdirectories because Homebrew gets upset
* `/sw` and `/opt/local` because build scripts get confused when Homebrew is there instead of Fink or MacPorts, respectively.
However do yourself a favor and install to `/usr/local`. Some things may
@ -46,7 +47,7 @@ you can assume you will have trouble if you don’t conform. Also, you can find
PowerPC and Tiger branches from other users in the fork network. See
[Interesting Taps and Forks](Interesting-Taps-and-Forks.md).
<a name="2"><sup>2</sup></a> 10.10 or higher is recommended. 10.5–10.9 are
<a name="2"><sup>2</sup></a> 10.11 or higher is recommended. 10.5–10.10 are
supported on a best-effort basis. For 10.4 see
[Tigerbrew](https://github.com/mistydemeo/tigerbrew).