go-cli.txtar

author: Author full name? John Doe
proj_full: Project full name? Project X
proj_short: Project short name? {{xstringstosnakecase .proj_full}}
repo: Repo URL? github.com/{{ xstringstosnakecase .author }}/{{.proj_short}}
pkg: Application package name? app
gversion: Go version? 1.17
description: Project description?
-- finalize.sh --
#!/bin/bash

set -eu -o pipefail

# Get the directory that this script file is in
THIS_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

cd "$THIS_DIR/{{.proj_short}}"
go mod tidy
go mod download
go fmt .
go test ./...
git init
git add .
git commit -m 'Init commit'
cd "$THIS_DIR"
rm ./finalize.sh

-- {{.proj_short}}/.github/workflows/go.yml --
name: Go

on: [ push, pull_request ]
jobs:

  build:
    name: Build
    runs-on: ubuntu-latest
    steps:

    - name: Set up Go 1.x
      uses: actions/setup-go@v2
      with:
        go-version: ^{{.gversion}}
      id: go

    - name: Check out code into the Go module directory
      uses: actions/checkout@v2

    - name: Get dependencies
      run: go mod download

    - name: Test
      run: go test -v ./...
-- {{.proj_short}}/.gitignore --
-- {{.proj_short}}/LICENSE --
MIT License

Copyright (c) {{ timenow.Format "2006" }} {{ .author }}

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
-- {{.proj_short}}/README.md --
# {{ .proj_full }} [![GoDoc](https://godoc.org/{{.repo}}?status.svg)](https://godoc.org/{{.repo}}) [![Go Report Card](https://goreportcard.com/badge/{{.repo}})](https://goreportcard.com/report/{{.repo}})

{{ .description }}

## Installation

First install [Go](http://golang.org).

If you just want to install the binary to your current directory and don't care about the source code, run

```bash
GOBIN="$(pwd)" go install {{.repo}}@latest
```

## Screenshots

```
```
-- {{.proj_short}}/{{.pkg}}/{{.pkg}}.go --
package {{.pkg}}

import (
	"flag"
	"fmt"
	"io"
	"log"
	"os"

	"github.com/carlmjohnson/flagx"
	"github.com/carlmjohnson/flagx/lazyio"
	"github.com/carlmjohnson/versioninfo"
)

const AppName = "{{.proj_full}}"

func CLI(args []string) error {
	var app appEnv
	err := app.ParseArgs(args)
	if err != nil {
		return err
	}
	if err = app.Exec(); err != nil {
		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
	}
	return err
}

func (app *appEnv) ParseArgs(args []string) error {
	fl := flag.NewFlagSet(AppName, flag.ContinueOnError)
	src := lazyio.FileOrURL(lazyio.StdIO, nil)
	app.src = src
	fl.Var(src, "src", "source file or URL")
	app.Logger = log.New(io.Discard, AppName+" ", log.LstdFlags)
	flagx.BoolFunc(fl, "verbose", "log debug output", func() error {
		app.Logger.SetOutput(os.Stderr)
		return nil
	})
	fl.Usage = func() {
		fmt.Fprintf(fl.Output(), `{{.proj_short}} - %s

{{.description}}

Usage:

	{{.proj_short}} [options]

Options:
`, versioninfo.Version)
		fl.PrintDefaults()
	}
	if err := fl.Parse(args); err != nil {
		return err
	}
	if err := flagx.ParseEnv(fl, AppName); err != nil {
		return err
	}
	return nil
}

type appEnv struct {
	src io.ReadCloser
	*log.Logger
}

func (app *appEnv) Exec() (err error) {
	app.Println("starting")
	defer func() { app.Println("done") }()

	n, err := io.Copy(os.Stdout, app.src)
	defer func() {
		e2 := app.src.Close()
		if err == nil {
			err = e2
		}
	}()
	app.Printf("copied %d bytes\n", n)

	return err
}
-- {{.proj_short}}/go.mod --
module {{.repo}}

go {{.gversion}}
-- {{.proj_short}}/main.go --
package main

import (
	"os"

	"github.com/carlmjohnson/exitcode"
	"{{.repo}}/{{.pkg}}"
)

func main() {
	exitcode.Exit({{.pkg}}.CLI(os.Args[1:]))
}