mirror of
https://github.com/dnote/dnote
synced 2026-03-14 22:45:50 +01:00
138 lines
3.4 KiB
Go
138 lines
3.4 KiB
Go
/* Copyright (C) 2019, 2020, 2021, 2022, 2023, 2024 Monomax Software Pty Ltd
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*
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* This file is part of Dnote.
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*
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* Dnote is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dnote is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dnote. If not, see <https://www.gnu.org/licenses/>.
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*/
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// Package ui provides the user interface for the program
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package ui
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"strings"
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"github.com/dnote/dnote/pkg/cli/consts"
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"github.com/dnote/dnote/pkg/cli/context"
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"github.com/dnote/dnote/pkg/cli/utils"
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"github.com/pkg/errors"
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)
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// GetTmpContentPath returns the path to the temporary file containing
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// content being added or edited
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func GetTmpContentPath(ctx context.DnoteCtx) (string, error) {
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for i := 0; ; i++ {
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filename := fmt.Sprintf("%s_%d.%s", consts.TmpContentFileBase, i, consts.TmpContentFileExt)
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candidate := fmt.Sprintf("%s/%s", ctx.Paths.Cache, filename)
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ok, err := utils.FileExists(candidate)
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if err != nil {
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return "", errors.Wrapf(err, "checking if file exists at %s", candidate)
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}
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if !ok {
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return candidate, nil
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}
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}
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}
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// getEditorCommand returns the system's editor command with appropriate flags,
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// if necessary, to make the command wait until editor is close to exit.
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func getEditorCommand() string {
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editor := os.Getenv("EDITOR")
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var ret string
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switch editor {
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case "atom":
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ret = "atom -w"
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case "subl":
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ret = "subl -n -w"
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case "mate":
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ret = "mate -w"
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case "vim":
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ret = "vim"
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case "nano":
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ret = "nano"
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case "emacs":
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ret = "emacs"
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case "nvim":
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ret = "nvim"
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default:
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ret = "vi"
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}
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return ret
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}
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func newEditorCmd(ctx context.DnoteCtx, fpath string) (*exec.Cmd, error) {
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args := strings.Fields(ctx.Editor)
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args = append(args, fpath)
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return exec.Command(args[0], args[1:]...), nil
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}
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// GetEditorInput gets the user input by launching a text editor and waiting for
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// it to exit
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func GetEditorInput(ctx context.DnoteCtx, fpath string) (string, error) {
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ok, err := utils.FileExists(fpath)
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if err != nil {
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return "", errors.Wrapf(err, "checking if the file exists at %s", fpath)
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}
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if !ok {
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f, err := os.Create(fpath)
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if err != nil {
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return "", errors.Wrap(err, "creating a temporary content file")
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}
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err = f.Close()
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if err != nil {
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return "", errors.Wrap(err, "closing the temporary content file")
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}
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}
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cmd, err := newEditorCmd(ctx, fpath)
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if err != nil {
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return "", errors.Wrap(err, "creating an editor command")
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}
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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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err = cmd.Start()
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if err != nil {
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return "", errors.Wrapf(err, "launching an editor")
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}
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err = cmd.Wait()
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if err != nil {
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return "", errors.Wrap(err, "waiting for the editor")
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}
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b, err := ioutil.ReadFile(fpath)
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if err != nil {
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return "", errors.Wrap(err, "reading the temporary content file")
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}
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err = os.Remove(fpath)
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if err != nil {
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return "", errors.Wrap(err, "removing the temporary content file")
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}
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raw := string(b)
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return raw, nil
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}
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