mirror of
https://github.com/git/git.git
synced 2024-11-14 21:23:03 +01:00
d318027932
Most struct child_process variables are cleared using memset first after declaration. Provide a macro, CHILD_PROCESS_INIT, that can be used to initialize them statically instead. That's shorter, doesn't require a function call and is slightly more readable (especially given that we already have STRBUF_INIT, ARGV_ARRAY_INIT etc.). Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
#include "cache.h"
|
|
#include "strbuf.h"
|
|
#include "run-command.h"
|
|
#include "sigchain.h"
|
|
|
|
#ifndef DEFAULT_EDITOR
|
|
#define DEFAULT_EDITOR "vi"
|
|
#endif
|
|
|
|
const char *git_editor(void)
|
|
{
|
|
const char *editor = getenv("GIT_EDITOR");
|
|
const char *terminal = getenv("TERM");
|
|
int terminal_is_dumb = !terminal || !strcmp(terminal, "dumb");
|
|
|
|
if (!editor && editor_program)
|
|
editor = editor_program;
|
|
if (!editor && !terminal_is_dumb)
|
|
editor = getenv("VISUAL");
|
|
if (!editor)
|
|
editor = getenv("EDITOR");
|
|
|
|
if (!editor && terminal_is_dumb)
|
|
return NULL;
|
|
|
|
if (!editor)
|
|
editor = DEFAULT_EDITOR;
|
|
|
|
return editor;
|
|
}
|
|
|
|
int launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
|
|
{
|
|
const char *editor = git_editor();
|
|
|
|
if (!editor)
|
|
return error("Terminal is dumb, but EDITOR unset");
|
|
|
|
if (strcmp(editor, ":")) {
|
|
const char *args[] = { editor, real_path(path), NULL };
|
|
struct child_process p = CHILD_PROCESS_INIT;
|
|
int ret, sig;
|
|
|
|
p.argv = args;
|
|
p.env = env;
|
|
p.use_shell = 1;
|
|
if (start_command(&p) < 0)
|
|
return error("unable to start editor '%s'", editor);
|
|
|
|
sigchain_push(SIGINT, SIG_IGN);
|
|
sigchain_push(SIGQUIT, SIG_IGN);
|
|
ret = finish_command(&p);
|
|
sig = ret - 128;
|
|
sigchain_pop(SIGINT);
|
|
sigchain_pop(SIGQUIT);
|
|
if (sig == SIGINT || sig == SIGQUIT)
|
|
raise(sig);
|
|
if (ret)
|
|
return error("There was a problem with the editor '%s'.",
|
|
editor);
|
|
}
|
|
|
|
if (!buffer)
|
|
return 0;
|
|
if (strbuf_read_file(buffer, path, 0) < 0)
|
|
return error("could not read file '%s': %s",
|
|
path, strerror(errno));
|
|
return 0;
|
|
}
|