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TENV_AS_LIB.md

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How to use tenv as a library

Get started

Prerequisites

tenv requires Go version 1.23 or above.

Getting tenv module

tenvlib package is available since tenv v3.2

go get -u github.com/tofuutils/tenv/v3@latest

Basic example

package main

import (
    "context"
    "fmt"

    "github.com/tofuutils/tenv/v3/config/cmdconst"
    "github.com/tofuutils/tenv/v3/versionmanager/tenvlib"
)

func main() {
    tenv, err := tenvlib.Make(tenvlib.AutoInstall, tenvlib.IgnoreEnv, tenvlib.DisableDisplay)
    if err != nil {
        fmt.Println("init failed :", err)
        return
    }

    err = tenv.DetectedCommandProxy(context.Background(), cmdconst.TofuName, "version")
    if err != nil {
        fmt.Println("proxy call failed :", err)
    }
}

Documentation

See the API documentation on go.dev and examples.

Overview

Available Tenv struct creation options :

  • AddTool(toolName string, builderFunc builder.BuilderFunc), extend tenvlib to support other tool use cases.
  • AutoInstall, shortcut to force auto install feature enabling in config.Config.
  • DisableDisplay, do not display or log anything.
  • IgnoreEnv, ignore tenv environment variables (TENV_AUTO_INSTALL, TOFUENV_TOFU_VERSION, etc.).
  • WithConfig(conf *config.Config), replace default Config (one from a InitConfigFromEnv or DefaultConfig call depending on IgnoreEnv usage).
  • WithDisplayer(displayer loghelper.Displayer), replace default Displayer with a custom to handle tenvlib output (standard and log).
  • WithHCLParser(hclParser *hclparse.Parser), use passed Parser instead of creating a new one.

Tenv methods list :

  • [Detected]Command[Proxy]
  • Detect
  • Evaluate
  • Install[Multiple]
  • List[Local|Remote]
  • LocallyInstalled
  • [Res|S]etDefault[Constraint|Version], manage constraint and version files in <rootPath>/<tool>/
  • Uninstall[Multiple]

Happy hacking !