go mod init

Signed-off-by: jolheiser <john.olheiser@gmail.com>

.gitignore

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+/gomodinit*
+.idea/

LICENSE

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+Copyright (c) 2021 John Olheiser
+
+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.

README.md

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+# gomodinit
+
+`go mod init`
+
+1. Set your base URL prefix via flag or env variable
+2. `gomodinit` will default to the current directory name as the module, otherwise the first command argument
+
+## This seems like a trivial thing
+
+very.
+
+## License
+
+[MIT](LICENSE)

go.mod

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+module go.jolheiser.com/gomodinit
+
+go 1.17
+
+require github.com/peterbourgon/ff/v3 v3.1.0

go.sum

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+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pelletier/go-toml v1.6.0/go.mod h1:5N711Q9dKgbdkxHL+MEfF31hpT7l0S0s/t2kKREewys=
+github.com/peterbourgon/ff/v3 v3.1.0 h1:5JAeDK5j/zhKFjyHEZQXwXBoDijERaos10RE+xamOsY=
+github.com/peterbourgon/ff/v3 v3.1.0/go.mod h1:XNJLY8EIl6MjMVjBS4F0+G0LYoAqs0DTa4rmHHukKDE=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

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+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"github.com/peterbourgon/ff/v3"
+)
+
+func main() {
+	fs := flag.NewFlagSet("gomodinit", flag.ExitOnError)
+	base := fs.String("base", "", "Base URL prefix for module")
+	if err := ff.Parse(fs, os.Args[1:], ff.WithEnvVarPrefix("GMI")); err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	if *base == "" {
+		fmt.Println("Base URL is required")
+		return
+	}
+
+	dir, err := os.Getwd()
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	name := filepath.Base(dir)
+	if fs.NArg() > 0 {
+		name = fs.Arg(0)
+	}
+
+	*base = strings.TrimSuffix(*base, "/")
+
+	out, err := exec.Command("go", "mod", "init", fmt.Sprintf("%s/%s", *base, name)).CombinedOutput()
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	fmt.Print(string(out))
+}