Installing homebrew to your home directory allows for better control over where packages are installed and avoid running into System Integrity Protection which was added to El Capitan. Also its extremely easy to do.
If you already have homebrew installed you can run
brew list | tr '\r\n' ' ' to get a list of packages that were installed with homebrew. Save this list, we will use it later. At this point you can also uninstall homebrew so it does not conflict with the new installation.
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Installing homebrew to a custom directory is pretty straightforward.
git clone https://github.com/mxcl/homebrew.git
Next we need to make sure the homebrew bin directory is in your
$PATH in order to use installed packages.
It’s important to note here that we are putting the
homebrew/bin directory at the front of the path. This allows us to install packages that are also provided by OSX but because the homebrew directory comes first it will us our installed version rather than the default os version.
At this point you can install all of the packages that were previously installed. This step might take a little while.
brew install vim tree tmux ...
You’re done! Reload your terminal and verify that running
which brew shows homebrew is installed in its new location.
I’ve create an alias that updates homebrew, upgrades any installed formulas, and then cleans up any files that are no longer necessary. This can be useful for keeping your system up to date. Running
brew cleanup from time to time is also important as I’ve seen it clean upwards of 1GB of space.
alias sysup='brew update && brew upgrade; brew cleanup'