g
0.10.0
Simple go version manager, gluten-free.
Existing version managers build go from source, have too many dependencies, pollute the PATH, and/or require you to use a specific shell environment. g aims to be as unobtrusive and portable as possible.
g is inspired by tj/n - which I have contributed to in the past - and borrows some of its code.
$GOPATH and $GOROOT are exported which...go and not specific to g.source functions in your shell config.curl and wget first-class support alike.curl or wget, check with curl -V or wget -V respectively.Not strictly necessary, but highly recommended, to completely remove any previous go installation — just to prevent any weird outcome.
IMPORTANT: Before you continue, I encourage you to read the install script; never trust someone telling you to run random commands.
That said, you can install g with a single command:
curl -sSL https://git.io/g-install | sh -sIf you use wget instead:
wget -qO- https://git.io/g-install | sh -sThat will download the g script, put it inside $GOPATH/bin/, give it execution rights with chmod, and configure your default shell's initialization file, setting the GOPATH & GOROOT environment variables and adding $GOPATH/bin to the PATH.
Then you will prompted to install the latest version of go; you can skip this step and install your preferred version with g later.
NOTE: You must restart your current shell session for it to read these new env vars in order to use g or go.
The install script currently supports the following shells:
That doesn't mean you cannot use g with other shells, just proceed with the manual installation.
The install script is going to select your default shell for configuration. You might see what your default shell is by running:
echo $SHELLIf you wish to configure a diff shell, you might pass it as arguments:
curl -sSL https://git.io/g-install | sh -s -- fishYou might as well configure several shells, but that's usually not required:
curl -sSL https://git.io/g-install | sh -s -- fish bash zsh
Use the -y option to skip the prompts and assume "yes" for everything:
curl -sSL https://git.io/g-install | sh -s -- -yBy default, these go environment variables are used:
GOROOT: $HOME/.go
GOPATH: $HOME/go
$GOPATH/bin is added to the PATH and there's where g is copied to.
You might set those variables before running the install script. For example, in bash and zsh:
export GOROOT=~/.local/share/golang
export GOPATH=~/MyProjects/go-projects
curl -sSL https://git.io/g-install | sh -sIn fish:
set -gx GOROOT ~/.local/share/golang
set -gx GOPATH ~/MyProjects/go-projects
curl -sSL https://git.io/g-install | sh -s$GOPATH & $GOROOT environment variables and add $GOPATH/bin to your PATH../bin/g script and put it anywhere available in your PATH — inside $GOPATH/bin/ is a good option.chmod +x $GOPATH/bin/g.g includes a self-upgrade command you can run to get the latest version of g. This command simply runs the install script once again.
Usage: g [COMMAND] [options] [args]
Commands:
g Open interactive UI with downloaded versions
g install latest Download and set the latest go release
g install <version> Download and set go <version>
g download <version> Download go <version>
g set <version> Switch to go <version>
g run <version> Run a given version of go
g which <version> Output bin path for <version>
g remove <version ...> Remove the given version(s)
g prune Remove all versions except the current version
g list Output downloaded go versions
g list-all Output all available, remote go versions
g self-upgrade Upgrades g to the latest version
g help Display help information, same as g --help
Options:
-h, --help Display help information and exit
-v, --version Output current version of g and exit
-q, --quiet Suppress almost all output
-c, --no-color Force disabled color output
-y, --non-interactive Prevent prompts
-o, --os Override operating system
-a, --arch Override system architecture
-u, --unstable Include unstable versions in list
g is a single portable shell script that acts like a binary that's available in your $PATH. If you setup g with the install script, its removal should be pretty straight forward.
First of all, get some info about your system:
echo $SHELL
echo $GOROOT
echo $GOPATH
command -v gYou will notice the g file lives inside your $GOPATH/bin/ directory. If you only want to remove g and keep your currently installed go binaries and related files, simply delete g:
# If you're using bash, zsh, or other POSIX shell:
rm "$(command -v g)"
# If you're using fish:
rm (command -v g)Now, if you want to remove everything, first be sure to backup your projects inside $GOROOT, if any. Then remove everything inside $GOROOT and $GOPATH:
rm -r $GOPATH $GOROOTThen open your shell config file with your text editor of choice and look of for a line that includes g-install to remove it. These are the locations usually used by the install script:
# bash on MacOS
~/.bash_profile
# bash on linux/BSD
~/.bashrc
# zsh
~/.zshrc
# fish shell
~/.config/fish/config.fish
# csh
~/.cshrc
# tcsh
~/.tcshrc
# For ash and dash, check your $ENV var
echo $ENVAt this point you would have removed g and go entirely.
g and g-install POSIX compliantg-installg install <version>, maybe use or set. See #8
install only for install and remove the --download optiong already exists, mainly zsh with oh-my-zsh
g-install offers the user to setup an alternative alias for gself-upgrade command throw if g was not installed in the common waycomplete command that generates completions for the supported shells
g-install setup the shells to call this command for completionsg)goenv before installing a new version of go.gvm.Please read CONTRIBUTING.md. ♥
n project, which g is inspired by and based on.n-install project, which g is also based on.MIT ♥
