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package main
import (
"errors"
"fmt"
"io/fs"
"os"
"path"
"path/filepath"
"github.com/charmbracelet/x/editor"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
const defaultConfig = `# style name or JSON path (default "auto")
style: "auto"
# mouse support (TUI-mode only)
mouse: false
# use pager to display markdown
pager: false
# word-wrap at width
width: 80
# show all files, including hidden and ignored.
all: false
`
var configCmd = &cobra.Command{
Use: "config",
Hidden: false,
Short: "Edit the glow config file",
Long: paragraph(fmt.Sprintf("\n%s the glow config file. We’ll use EDITOR to determine which editor to use. If the config file doesn't exist, it will be created.", keyword("Edit"))),
Example: paragraph("glow config\nglow config --config path/to/config.yml"),
Args: cobra.NoArgs,
RunE: func(*cobra.Command, []string) error {
if err := ensureConfigFile(); err != nil {
return err
}
c, err := editor.Cmd("Glow", configFile)
if err != nil {
return fmt.Errorf("unable to set config file: %w", err)
}
c.Stdin = os.Stdin
c.Stdout = os.Stdout
c.Stderr = os.Stderr
if err := c.Run(); err != nil {
return fmt.Errorf("unable to run command: %w", err)
}
fmt.Println("Wrote config file to:", configFile)
return nil
},
}
func ensureConfigFile() error {
if configFile == "" {
configFile = viper.GetViper().ConfigFileUsed()
if err := os.MkdirAll(filepath.Dir(configFile), 0o755); err != nil { //nolint:gosec
return fmt.Errorf("could not write configuration file: %w", err)
}
}
if ext := path.Ext(configFile); ext != ".yaml" && ext != ".yml" {
return fmt.Errorf("'%s' is not a supported configuration type: use '%s' or '%s'", ext, ".yaml", ".yml")
}
if _, err := os.Stat(configFile); errors.Is(err, fs.ErrNotExist) {
// File doesn't exist yet, create all necessary directories and
// write the default config file
if err := os.MkdirAll(filepath.Dir(configFile), 0o700); err != nil {
return fmt.Errorf("unable create directory: %w", err)
}
f, err := os.Create(configFile)
if err != nil {
return fmt.Errorf("unable to create config file: %w", err)
}
defer func() { _ = f.Close() }()
if _, err := f.WriteString(defaultConfig); err != nil {
return fmt.Errorf("unable to write config file: %w", err)
}
} else if err != nil { // some other error occurred
return fmt.Errorf("unable to stat config file: %w", err)
}
return nil
}
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