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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package cmd
import (
"flag"
"fmt"
"os"
"github.com/philippta/flyscrape"
)
type NewCommand struct{}
func (c *NewCommand) Run(args []string) error {
fs := flag.NewFlagSet("flyscrape-new", flag.ContinueOnError)
fs.Usage = c.Usage
if err := fs.Parse(args); err != nil {
return err
} else if fs.NArg() == 0 || fs.Arg(0) == "" {
c.Usage()
return flag.ErrHelp
} else if fs.NArg() > 1 {
return fmt.Errorf("too many arguments")
}
script := fs.Arg(0)
if _, err := os.Stat(script); err == nil {
return fmt.Errorf("script already exists")
}
if err := os.WriteFile(script, flyscrape.ScriptTemplate, 0o644); err != nil {
return fmt.Errorf("failed to create script %q: %w", script, err)
}
fmt.Printf("Scraping script %v created.\n", script)
return nil
}
func (c *NewCommand) Usage() {
fmt.Println(`
The new command creates a new scraping script.
Usage:
flyscrape new SCRIPT
Examples:
# Create a new scraping script.
$ flyscrape new example.js
`[1:])
}
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