fish nvm

nvm.fish

function nvm-fast
        set -q NVM_DIR ; or set -l NVM_DIR ~/.nvm
        set -l brigand_nvm_fish_path $NVM_DIR/versions/node
        if test (count $argv[1]) -lt 1
                echo 'nvm-fast: at least one argument is required'
        end

        set -l command $argv[1]
        if test $command = 'use'
                set target_version "unknown"
                if test (count $argv) -eq 1
                        if test -f .nvmrc
                                set target_version (cat .nvmrc)
                        else
                                echo "Error: No version provided and no .nvmrc found"
                                return
                        end
                else
                        set target_version $argv[2]
                end
                set -l target_version $target_version

                set -l matched_version (bash -c "source $NVM_DIR/nvm.sh --no-use; nvm_version $target_version")

                if test -z $matched_version -o $matched_version = 'N/A'
                        echo "No version installed for $target_version, run nvm install $target_version"
                        echo "Installed versions: "
                        for file in $brigand_nvm_fish_path/v*
                                echo ' -' $file
                        end
                else
                        set -l new_path (string match -ev "$brigand_nvm_fish_path" $PATH)
                        if test $matched_version != 'system'
                                set new_path $brigand_nvm_fish_path/$matched_version/bin $new_path
                        end
                        set -gx PATH $new_path
                        set -gx NVM_BIN (which node)
                end
        else
                bash -c "source $NVM_DIR/nvm.sh --no-use; nvm $argv"
                set -gx NVM_BIN (which node)
        end
end

function nvm
        switch "$FISH_VERSION"
                case 2.0.0 2.1.0 2.1.1 2.1.2 2.2.0 2.2b1 2.3.0 2.3.1 2.3b1 2.3b2 2.4.0 2.4b1 2.5.0 2.5b1
                        echo "You need fish 2.6.0 or higher to use fast-nvm-fish." 1>&2
                        return 1
        end
        nvm-fast $argv
end