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Merge branch 'cm/save-restore-terminal'

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An editor session launched during a Git operation (e.g. during 'git
commit') can leave the terminal in a funny state.  The code path
has updated to save the terminal state before, and restore it
after, it spawns an editor.

* cm/save-restore-terminal:
  editor: save and reset terminal after calling EDITOR
  terminal: teach git how to save/restore its terminal settings
This commit is contained in:
Junio C Hamano
2021-10-18 15:47:57 -07:00
parent a4b9fb6a5c 3d411afabc
commit 853ec9aa9b
3 changed files with 71 additions and 15 deletions
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8
editor.c
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@ -3,6 +3,7 @@
#include "strbuf.h"
#include "run-command.h"
#include "sigchain.h"
#include "compat/terminal.h"
#ifndef DEFAULT_EDITOR
#define DEFAULT_EDITOR "vi"
@ -50,6 +51,8 @@ const char *git_sequence_editor(void)
static int launch_specified_editor(const char *editor, const char *path,
struct strbuf *buffer, const char *const *env)
{
int term_fail;
if (!editor)
return error("Terminal is dumb, but EDITOR unset");
@ -83,7 +86,10 @@ static int launch_specified_editor(const char *editor, const char *path,
p.env = env;
p.use_shell = 1;
p.trace2_child_class = "editor";
term_fail = save_term(1);
if (start_command(&p) < 0) {
if (!term_fail)
restore_term();
strbuf_release(&realpath);
return error("unable to start editor '%s'", editor);
}
@ -91,6 +97,8 @@ static int launch_specified_editor(const char *editor, const char *path,
sigchain_push(SIGINT, SIG_IGN);
sigchain_push(SIGQUIT, SIG_IGN);
ret = finish_command(&p);
if (!term_fail)
restore_term();
strbuf_release(&realpath);
sig = ret - 128;
sigchain_pop(SIGINT);