ignr/new.go

109 lines
3.1 KiB
Go

package main
import (
"context"
"errors"
"fmt"
"io"
"os"
"github.com/charmbracelet/huh"
"github.com/charmbracelet/lipgloss"
"github.com/google/go-github/v72/github"
"github.com/spf13/cobra"
)
const gitignoreFileName = ".gitignore"
// newCmd represents the new command.
var newCmd = &cobra.Command{
Use: "new",
Short: "Create a new .gitignore file",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
return runNewCommand(cmd, args)
},
}
func init() {
rootCmd.AddCommand(newCmd)
}
// runNewCommand is the handler for the 'new' command.
// It retrieves available .gitignore templates from GitHub, prompts the user to select one,
// and writes the selected template to a new .gitignore file.
func runNewCommand(cmd *cobra.Command, _ []string) error {
client, ok := getClientFromContext(cmd.Context())
if !ok {
return errors.New("failed to get GitHub client from context")
}
templates, _, err := client.Gitignores.List(context.Background())
if err != nil {
return fmt.Errorf("error listing gitignore templates: %w", err)
}
var selection string
if err := runPrompt(templates, &selection); err != nil {
return fmt.Errorf("error running selection prompt: %w", err)
}
content, _, err := client.Gitignores.Get(context.Background(), selection)
if err != nil {
return fmt.Errorf("error retrieving gitignore template '%s': %w", selection, err)
}
f, err := os.OpenFile(gitignoreFileName, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o600)
if err != nil {
return fmt.Errorf("error opening file '%s': %w", gitignoreFileName, err)
}
defer f.Close()
if err = commitGitignore(content, f); err != nil {
return fmt.Errorf("error committing gitignore file: %w", err)
}
style := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")) // nolint: misspell
fmt.Println(style.Render("Created"), selection, style.Render(".gitignore file ✓"))
return nil
}
// runPrompt is a helper function to run the selection prompt for .gitignore templates.
func runPrompt(templates []string, selection *string) error {
var options []huh.Option[string]
for _, template := range templates {
options = append(options, huh.NewOption(template, template))
}
selectionPrompt := huh.NewSelect[string]().
Title("Select a .gitignore template").
Options(options...).
Value(selection)
if err := selectionPrompt.Run(); err != nil {
return fmt.Errorf("error running selection prompt: %w", err)
}
return nil
}
// commitGitignore writes the content of the selected gitignore template to the .gitignore file.
func commitGitignore(content *github.Gitignore, w io.Writer) error {
if _, err := fmt.Fprintf(w, "# Generated by ignr-cli: github.com/onyx-and-iris/ignr-cli\n"); err != nil {
return fmt.Errorf("error writing header to file '%s': %w", gitignoreFileName, err)
}
if _, err := fmt.Fprintf(w, "%s", *content.Source); err != nil {
return fmt.Errorf("error writing to file '%s': %w", gitignoreFileName, err)
}
if _, err := fmt.Fprintf(w, "\n# End of ignr-cli\n"); err != nil {
return fmt.Errorf("error writing footer to file '%s': %w", gitignoreFileName, err)
}
return nil
}