90 lines
1.7 KiB
Bash
Executable File
90 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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uname_m=$(uname -m)
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goarch='amd64'
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if [[ $uname_m == 'arm64' || $uname_m == 'aarch64' ]]; then
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goarch='arm64'
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fi
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goos='linux'
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if [[ $(uname) == 'Darwin' ]]; then
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goos='darwin'
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fi
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valid='false'
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exists='false'
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list_versions() {
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echo "valid options:"
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for i in "$HOME"/.go/go1*; do basename "$i"; done
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echo ""
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}
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install_version() {
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check_valid $1
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if [[ $valid != 'true' ]]; then
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echo "invalid version $1"
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echo "using"
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go version
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exit 1
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fi
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fname="$HOME/.go/downloads/$1.$goos-$goarch.tar.gz"
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if [[ ! -f $fname ]]; then
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curl -Lo $fname https://dl.google.com/go/$1.$goos-$goarch.tar.gz
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fi
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cd $HOME/.go/downloads
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tar -zxf $1.$goos-$goarch.tar.gz
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mv go/ ../$1
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check_exists $1
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link_version $1
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}
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link_version() {
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if [[ $exists == 'true' ]]; then
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ln -sfn $HOME/.go/$1 $HOME/.go/go
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fi
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}
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check_valid() {
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if [[ $1 =~ go1\.[0-9]{1,2}\.[0-9]{1,2} ]]; then
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valid='true'
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fi
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}
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check_exists() {
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if [[ -d $HOME/.go/$1 ]]; then
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exists='true'
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fi
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}
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check_exists $1
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if [[ $1 == '' ]]; then
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list_versions
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echo "using"
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go version
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exit 1
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elif [[ $1 == 'install' ]]; then
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install_version $2
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elif [[ $exists == 'true' ]]; then
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link_version $1
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else
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echo "$1 not found in $HOME/.go"
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list_versions
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check_valid $1
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if [[ $valid == 'true' ]]; then
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echo "attempt to download and install? [y/n]"
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read input
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if [[ $input == 'y' ]]; then
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install_version $1
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fi
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else
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echo "invalid version $1"
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echo "using"
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go version
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exit 1
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fi
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fi
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echo "using"
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go version
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