tmpl/cmd/init.go

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package cmd
import (
"errors"
"os"
"github.com/rs/zerolog/log"
"github.com/urfave/cli/v2"
)
var Init = &cli.Command{
Name: "init",
Usage: "Initialize a template",
Description: "Initializes a template structure for creating a new tmpl template",
Action: runInit,
}
func runInit(_ *cli.Context) error {
if _, err := os.Lstat("template.toml"); !os.IsNotExist(err) {
if err != nil {
return err
}
return errors.New("template.toml already detected, aborting initialization")
}
if fi, err := os.Lstat("template"); !os.IsNotExist(err) {
if err != nil {
return err
}
if !fi.IsDir() {
return errors.New("template file found instead of directory, aborting initialization")
}
return errors.New("template directory already detected, aborting initialization")
}
fi, err := os.Create("template.toml")
if err != nil {
return err
}
if _, err := fi.WriteString(comments); err != nil {
return err
}
if err := os.Mkdir("template", os.ModePerm); err != nil {
return err
}
log.Info().Msg("Template initialized!")
return fi.Close()
}
var comments = `# template.toml
# Write any template args here to prompt the user for, giving any defaults/options as applicable
[name]
prompt = "Project Name"
help = "The name to use in the project"
default = "tmpl"
`