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Install a previous version of a formula with Homebrew
#!/bin/bash
#
# Installs the previous version of a Homebrew formula
#
# Usage: brewv formula_name desired_version
#
# Based on http://stackoverflow.com/questions/3987683/homebrew-install-specific-version-of-formula#9832084
#
# Author: Matti Schneider <hi@mattischneider.fr> (http://mattischneider.fr)
versions=$(brew versions $1)
result=$(echo "$versions" | grep -m 1 $2) #-m 1 to stop as soon as possible
if [[ $? = 0 ]]
then
commit=$(echo $result | cut -d ' ' -f 4)
formula=$(echo $result | cut -d ' ' -f 5)
cd /usr/local
if [[ -e $formula ]]
then brew unlink $1 # will fail if not already installed, hence the check above
fi
git checkout $commit $formula &&
brew install $1 &&
git reset HEAD $formula &&
git checkout -- $formula
cd - > /dev/null
echo "$1 $2 installed."
echo "You can now switch versions with 'brew switch $1 <version>'"
else
echo "$versions"
echo
echo "No version matching '$2' for '$1'"
echo "Available versions have been printed above"
exit 1
fi
@kaspergrubbe

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commented Oct 28, 2013

Thanks :-)

@Ndpnt

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commented Oct 31, 2013

That's so awesome.

@5te

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commented Jan 15, 2014

Great! Thank you!

@jeremyajohnson

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commented Apr 17, 2014

Very helpful!

@eeichinger

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commented Nov 15, 2014

finally - tx!

Note

as of Oct 2014 "brew versions" is no longer part of homebrew. You need to tap homebrew/boneyard before being able to use the script above:

brew tap homebrew/boneyard  

this puts the command "brew versions" back in your tool set

@benlk

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commented May 31, 2017

As of Brew version 1.11.12, the boneyard is deprecated: https://github.com/Homebrew/homebrew-boneyard

@doekman

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commented Sep 9, 2017

This all doesn't seem to be working anymore.

What worked for me: run brew info python3 to see what other versions of python3 have been installed (3.5.2_3 was listed), and then brew switch python3 3.5.2_3 to switch to the old version, and brew pin python3 to prevent upgrading.

Not sure how this works if you've never had older versions installed...

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