Version manager for yarn written in & for Fish

• Uses Fish's awesome tab-completion
• Minimal, no setup, no dependencies
• Works even with extremely old versions
• Extremely simple: it just adds the path to the installed yarn version to $fish_user_paths and doesn't mess with anything else.
• Heavily inspired by the super awesome fish node version manager

fisher add cideM/fish-yvm
yvm use latest

Install with Fisher (recommended):

fisher add cideM/fish-yvm

This assumes that you're fish config folder is located under ~/.config/fish

for i in functions completions
  curl https://raw.githubusercontent.com/cideM/fish-yvm/master/$i/yvm.fish --create-dirs -sLo $XDG_CONFIG_HOME/fish/$i/yvm.fish
end

Installs and activates given version of yarn. Version needs to exactly match one of the versions returned from yvm ls, which will be suggested through tab completion. The only exception to this rule is that latest will always install the most recent yarn version. Takes an optional -f or --force-fetch flag, which forces fetching the list of available resources from remote. If not the list is only updated if it's older than 120s.

List of releases is stored under $XDG_DATA_HOME/yvm_fish/yarn_releases (for most people this will be ~/.local/share/yvm_fish/yarn_releases.

The currently active version is stored under $XDG_DATA_HOME/yvm_fish/version.

Example:

yvm use 1.19.0

Lists all available yarn releases. Takes the same -f flag as use, with the same caching behavior. If you want to only see the installed versions, just pipe the output into something like grep.

Examples:

yvm ls | grep installed
yvm ls | grep active

$ yvm ls | head -n 5
1.19.1   installed       active
1.19.0   installed
1.18.0
1.17.3
1.17.2

Removes specified version from file system and PATH. Same version matching rules as for use apply, including latest.

Example:

yvm rm 1.19.0

Prints the help, just like yvm -h and yvm --help

yvm ls | grep installed

yvm ls | grep active

• Remove active version from $fish_user_paths using yvm rm
• Remove configuration data in $XDG_DATA_HOME/yvm_fish/ (most likely ~/.local/share/yvm_fish, so rm -r ~/.local/share/yvm_fish)
• For older versions before 0.8.0: Remove configuration data in $XDG_CONFIG_HOME/yvm-fish/ (most likely ~/.config/yvm-fish, so rm -r ~/.config/yvm-fish)
• Remove from fish. Depends on how you installed it. When done manually you'll have to remove the installed files. With fisher it's just fisher rm cideM/fish-yvm

This shows installing a very old version which doesn't export yarn, but rather kpm.js. It also shows what happens when you try to install a version that doesn't have a release tarball.