git/editor.c

57 lines
1.3 KiB
C
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#include "cache.h"
#include "strbuf.h"
#include "run-command.h"
void launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
{
const char *editor, *terminal;
editor = getenv("GIT_EDITOR");
if (!editor && editor_program)
editor = editor_program;
if (!editor)
editor = getenv("VISUAL");
if (!editor)
editor = getenv("EDITOR");
terminal = getenv("TERM");
if (!editor && (!terminal || !strcmp(terminal, "dumb"))) {
fprintf(stderr,
"Terminal is dumb but no VISUAL nor EDITOR defined.\n"
"Please supply the message using either -m or -F option.\n");
exit(1);
}
if (!editor)
editor = "vi";
if (strcmp(editor, ":")) {
size_t len = strlen(editor);
int i = 0;
const char *args[6];
struct strbuf arg0;
strbuf_init(&arg0, 0);
if (strcspn(editor, "$ \t'") != len) {
/* there are specials */
strbuf_addf(&arg0, "%s \"$@\"", editor);
args[i++] = "sh";
args[i++] = "-c";
args[i++] = arg0.buf;
}
args[i++] = editor;
args[i++] = path;
args[i] = NULL;
if (run_command_v_opt_cd_env(args, 0, NULL, env))
die("There was a problem with the editor %s.", editor);
strbuf_release(&arg0);
}
if (!buffer)
return;
if (strbuf_read_file(buffer, path, 0) < 0)
die("could not read message file '%s': %s",
path, strerror(errno));
}