86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package editor
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import (
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"fmt"
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"io/fs"
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"os"
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"os/exec"
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"git.burning.moe/celediel/agedit/pkg/tmpfile"
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)
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type Editor struct {
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Command string
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Args []string
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generator tmpfile.Generator
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}
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// EditFile opens the specified file in the configured editor
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func (e *Editor) EditFile(filename string) error {
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args := append(e.Args, filename)
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if e.Command == "" {
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return fmt.Errorf("no editor set or detected")
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}
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cmd := exec.Command(e.Command, args...)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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return err
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}
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return nil
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}
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// EditTempFile creates a temporary file with a random name, opens it in the
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// editor, and returns the byte slice of its contents.
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func (e *Editor) EditTempFile(start string) ([]byte, error) {
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var (
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filename string
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bytes []byte
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err error
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file *os.File
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)
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filename = e.generator.GenerateFullPath()
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if file, err = os.Create(filename); err != nil {
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return nil, err
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}
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if err = os.WriteFile(filename, []byte(start), fs.FileMode(0600)); err != nil {
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return nil, err
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}
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if err = e.EditFile(filename); err != nil {
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return nil, err
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}
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if bytes, err = os.ReadFile(filename); err != nil {
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return nil, err
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}
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if err = file.Close(); err != nil {
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return nil, err
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}
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if err = os.Remove(filename); err != nil {
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return nil, err
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}
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return bytes, nil
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}
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// New returns an Editor configured to open files with `command` + `args`.
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// The prefix and suffix will be added to the randomly generated
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// filename of `length` characters.
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func New(command string, args []string, prefix, suffix string, length int) Editor {
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return Editor{
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Command: command,
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Args: args,
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generator: tmpfile.NewGenerator(prefix, suffix, length),
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}
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}
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