tgswitch

Installs multiple versions of Terragrunt to ~/.terragrunt.versions and allows fast switching between them similar to what tfenv does for Terraform.

This is more recently updated than tgenv.

Install

brew install warrensbox/tap/tgswitch

or

curl -L https://raw.githubusercontent.com/warrensbox/tgswitch/release/install.sh | bash

Will prompt to download a version of Terragrunt from a list of recent versions:

tgswitch

or install a specific version as an arg without the v prefix:

tgswitch 0.39.2

using environment variable (put this in direnv's .envrc):

export TG_VERSION=0.39.2

will now automatically download and switch to the above version:

tgswitch

Instead of an environment variable you can create a file .terragrunt-version containing the version:

cat > .terragrunt-version <EOF
0.39.2
EOF

and then run tgswitch in that directory to detect the version and switch.