go-installer（去安装程序）

Go Installer

Install or verify the Go toolchain with system package managers first, then fall back to official Go downloads when needed.

Path Convention

Canonical install and execution directory: ~/.agents/skills/go-installer/. Run commands from this directory:

cd ~/.agents/skills/go-installer

Quick workflow

1. Check whether Go is already installed.
2. If missing, install via OS package manager (preferred).
3. If package manager is unavailable or the required version is not available, install from the official Go downloads.
4. Ensure PATH is updated and confirm go version.

Verify

go version

If the command is missing, continue to installation.

Install via package manager (preferred)

macOS (Homebrew):

brew install go

Linux (Debian/Ubuntu apt):

sudo apt update
sudo apt install -y golang-go

Linux (Fedora/RHEL/CentOS dnf):

sudo dnf install -y golang

Linux (RHEL/CentOS yum):

sudo yum install -y golang

Linux (Arch pacman):

sudo pacman -S --noconfirm go

Windows (winget):

winget install --id GoLang.Go -e

Windows (Chocolatey):

choco install -y golang

Install from official Go downloads (fallback)

Use this when a specific version is required or no package manager is available.

Set the version explicitly (example uses Go 1.22.0):

GO_VER="go1.22.0"

macOS (tar.gz, user dir)

GO_VER="go1.22.0"
ARCH="$(uname -m)"
case "${ARCH}" in
  arm64) GO_ARCH="arm64" ;;
  x86_64) GO_ARCH="amd64" ;;
  *) echo "Unsupported arch: ${ARCH}"; exit 1 ;;
esac

TAR="${GO_VER}.darwin-${GO_ARCH}.tar.gz"
if command -v curl >/dev/null 2>&1; then
  curl -LO "https://go.dev/dl/${TAR}"
else
  wget -O "${TAR}" "https://go.dev/dl/${TAR}"
fi

rm -rf "${HOME}/.local/go"
mkdir -p "${HOME}/.local"
tar -C "${HOME}/.local" -xzf "${TAR}"

Linux (tar.gz, user dir)

GO_VER="go1.22.0"
ARCH="$(uname -m)"
case "${ARCH}" in
  aarch64) GO_ARCH="arm64" ;;
  x86_64) GO_ARCH="amd64" ;;
  *) echo "Unsupported arch: ${ARCH}"; exit 1 ;;
esac

TAR="${GO_VER}.linux-${GO_ARCH}.tar.gz"
if command -v curl >/dev/null 2>&1; then
  curl -LO "https://go.dev/dl/${TAR}"
else
  wget -O "${TAR}" "https://go.dev/dl/${TAR}"
fi

rm -rf "${HOME}/.local/go"
mkdir -p "${HOME}/.local"
tar -C "${HOME}/.local" -xzf "${TAR}"

Windows (.zip)

$GoVer = "go1.22.0"
$Arch = $env:PROCESSOR_ARCHITECTURE
switch ($Arch) {
  "ARM64" { $GoArch = "arm64" }
  "AMD64" { $GoArch = "amd64" }
  default { throw "Unsupported arch: $Arch" }
}

$Zip = "$GoVer.windows-$GoArch.zip"
Invoke-WebRequest -Uri "https://go.dev/dl/$Zip" -OutFile $Zip
if (Test-Path C:\Go) { Remove-Item -Recurse -Force C:\Go }
tar -C C:\ -xf $Zip

PATH updates

macOS/Linux (add to shell profile):

export PATH="$PATH:${HOME}/.local/go/bin"

Windows:

• Add C:\Go\bin to the system PATH.

Post-check

go version

If the version still does not match, ensure the PATH order is correct and restart the shell.