Remove a formula and its unused dependencies
What is it?
It's an external command for Homebrew that provides a new command,
that will uninstall that formula, and uninstall any of its dependencies
that have no formula left installed that depend on them. The command will check all dependencies
recursively starting at the one specified on the command line.
This is tricky business. So this command comes with a warning.
There are formulae that do not specify all of their dependencies. This means that it is possible that this command will remove something you still need or won't remove something you no longer want. Generally, it is pretty good. Until someone comes up with a clever way around this, you need to be careful what you uninstall. A formula could also depend on something you want to keep around, while nothing else actually depends on it (except you). See Usage to ignore certain formula from being removed.
Tap this repository and install via
$ brew tap beeftornado/rmtree
Once you've tapped it, you can use the command as described above.
Although the script's name is
brew-rmtree.rb, Homebrew external
commands work in such a way that you invoke it as
brew rmtree. (It
functions exactly like a sub-command built into Homebrew.)
Typical use case, will remove
$ brew rmtree mpv ==> Examining installed formulae required by mpv... - 43 / 43 Can safely be removed ---------------------- automake lua mpg123 mpv-player/mpv/libass-ct Proceed?[y/N]: y ==> Cleaning up packages safe to remove Uninstalling /usr/local/Cellar/mpv/0.9.2... (342 files, 35M) Uninstalling /usr/local/Cellar/automake/1.15... (130 files, 3.2M) Uninstalling /usr/local/Cellar/libass-ct/HEAD... (9 files, 440K) Uninstalling /usr/local/Cellar/lua/5.2.4... (81 files, 1.1M) Uninstalling /usr/local/Cellar/mpg123/1.22.2... (16 files, 656K)
Trying to remove something required by something else
$ brew rmtree python python can't be removed because other formula depend on it: mpv-player/mpv/mpv, newt, node, postgresql, sip, yasm $ brew rmtree --force python ... (I'm not going to run this but it would remove python)
Want to see what will happen without making any changes?
$ brew rmtree --dry-run mpv This is a dry-run, nothing will be deleted ==> Examining installed formulae required by mpv... - 43 / 43 Can safely be removed ---------------------- automake lua mpg123 mpv-player/mpv/libass-ct Won't be removed ----------------- autoconf is used by pyenv, homebrew/dupes/rsync cairo is used by pango cmake is used by eigen, mysql, homebrew/science/opencv, zbackup faac is used by ffmpeg ffmpeg is used by homebrew/science/opencv fontconfig is used by imagemagick, pango freetype is used by graphviz, imagemagick fribidi is used by libass gettext is used by newt git is used by homebrew/headonly/arcanist, caskroom/cask/brew-cask, beeftornado/rmtree/brew-rmtree, go, gobject-introspection, mongodb, x264 glib is used by atk, gdk-pixbuf, pango gobject-introspection is used by atk, gdk-pixbuf, gtk+, pango harfbuzz is used by pango icu4c is used by node, sqlite jpeg is used by gdk-pixbuf, imagemagick, jasper, homebrew/science/opencv, wxmac lame is used by ffmpeg libass is used by ffmpeg libffi is used by glib libgpg-error is used by libksba libogg is used by libvorbis libpng is used by gdk-pixbuf, graphviz, imagemagick, homebrew/science/opencv, pngquant, s-lang, wxmac libtiff is used by gdk-pixbuf, imagemagick, homebrew/science/opencv, wxmac libtool is used by imagemagick libvo-aacenc is used by ffmpeg libvorbis is used by ffmpeg libvpx is used by ffmpeg little-cms2 is used by imagemagick openssl is used by freetds, libevent, mongodb, mysql, node, postgresql, wget, zbackup pixman is used by cairo pkg-config is used by atk, cloog, homebrew/versions/cloog018, freetds, gdk-pixbuf, graphviz, gtk+, imagemagick, libevent, node, homebrew/science/opencv, openexr, pango, pngquant, pyenv, tmux python is used by newt, node, postgresql, sip, yasm texi2html is used by ffmpeg webp is used by imagemagick x264 is used by ffmpeg x265 is used by ffmpeg xvid is used by ffmpeg xz is used by atk, coreutils, gdk-pixbuf, gtk+, hicolor-icon-theme, imagemagick, isl, mpfr, nasm, pango, watch, wget, zbackup yasm is used by ffmpeg
||Overrides the dependency check for just the top-level formula you are trying to remove. If you try to remove 'ruby' for example, you most likely will not be able to do this because other fomulae specify this as a dependency. This option will let you remove 'ruby'. This will NOT bypass dependency checks for the formula's children. If 'ruby' depends on 'git', then 'git' will still not be removed.|
||Ignore some dependencies from removal. This option must appear after the formulae to remove.|
||Does a dry-run. Goes through the whole process without actually removing anything. This gives you a chance to observe what packages would be removed and a chance to ignore them when you do it for real.|