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tool-upgrade-go

A library for golang that helps upgrade tools to newer versions with ease.

Usage

Artifact Repository structure

# over-simplified example of directory and file structure required
# mycompany.com web server directory or artifact repository

# binaries must be suffixed with _${GOOS}_${GOARCH}
% find path/to/dist
path/to/dist
path/to/dist/coolTool_darwin_amd64
path/to/dist/coolTool_linux_amd64
path/to/dist/coolTool_windows_amd64

% cat path/to/coolTool/.version-latest
1.2.2

# copy new binaries into place
% mkdir -p path/to/coolTool/1.2.3
% cp path/to/dist/coolTool_* path/to/coolTool/1.2.3

# update version channel
% echo "1.2.3" > path/to/coolTool/.version-latest

# full path structure
% find path/to/coolTool
path/to/coolTool
path/to/coolTool/1.2.2
path/to/coolTool/1.2.2/coolTool_darwin_amd64
path/to/coolTool/1.2.2/coolTool_linux_amd64
path/to/coolTool/1.2.2/coolTool_windows_amd64
path/to/coolTool/1.2.3
path/to/coolTool/1.2.3/coolTool_darwin_amd64
path/to/coolTool/1.2.3/coolTool_linux_amd64
path/to/coolTool/1.2.3/coolTool_windows_amd64
path/to/coolTool/.version-latest

Check for updates and upgrade if needed

tool-upgrade-go will upgrade to the version available in the version channel. It leverages GOOS and GOARCH of the current runtime to determine which platform architecture to download for the upgrade. In practice, this is often done using a CLI subcommand.

import "github.com/VeritasOS/tool-upgrade-go"

func main() {
  needUpgrade, err := upgrade.CheckAndNotifyIfOutOfDate(
    "coolTool", // tool name
    "1.2.2",    // current (installed) version
    "https://mycompany.com/path/to/coolTool", // artifact repo base
    ".version-", // version channel prefix
    "latest",    // version channel
  )

  if needUpgrade {
    err := upgrade.Upgrade(
      "coolTool",  // tool name
      "1.2.2",     // current (installed) version
      "https://mycompany.com/path/to/coolTool", // artifact repo base
      ".version-", // version channel prefix
      "latest",    // version channel name
      false,       // force upgrade when available version is the same or older
    )
  }
}