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editor.go
63 lines (53 loc) · 1.05 KB
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editor.go
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// Package editor manage EDITOR
package editor
import (
"bufio"
"os"
"os/exec"
)
// GetSliceText get slice text edited with editor.
func GetSliceText(initialText string) ([]string, error) {
tmpfile, err := os.CreateTemp("", "gomodoro")
if err != nil {
return nil, err
}
defer func() {
_ = os.Remove(tmpfile.Name())
}()
defer func() {
_ = tmpfile.Close()
}()
if _, err = tmpfile.WriteString(initialText); err != nil {
return nil, err
}
if err = openEditor(tmpfile.Name()); err != nil {
return nil, err
}
f, err := os.Open(tmpfile.Name())
if err != nil {
return nil, err
}
defer func() {
_ = f.Close()
}()
ts := make([]string, 0)
scanner := bufio.NewScanner(f)
for scanner.Scan() {
ts = append(ts, scanner.Text())
}
if err := scanner.Err(); err != nil {
return nil, err
}
return ts, nil
}
func openEditor(filepath string) error {
cmdName := "vi"
if e := os.Getenv("EDITOR"); e != "" {
cmdName = e
}
c := exec.Command(cmdName, filepath)
c.Stdin = os.Stdin
c.Stdout = os.Stdout
c.Stderr = os.Stderr
return c.Run()
}