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api: Implement '--embedded-mode' command-line option

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This option makes nvim run in "embedded mode", which creates an API channel via
stdin/stdout and disables all terminal-related code
This commit is contained in:
Thiago de Arruda
2014-08-12 15:04:28 -03:00
parent a1400896b3
commit 5b7a66ec3d
8 changed files with 82 additions and 15 deletions
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44
src/nvim/main.c
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@@ -256,10 +256,10 @@ int main(int argc, char **argv)
TIME_MSG("shell init");
/*
* Print a warning if stdout is not a terminal.
*/
check_tty(&params);
if (!embedded_mode) {
// Print a warning if stdout is not a terminal.
check_tty(&params);
}
/* This message comes before term inits, but after setting "silent_mode"
* when the input is not a tty. */
@@ -267,8 +267,16 @@ int main(int argc, char **argv)
printf(_("%d files to edit\n"), GARGCOUNT);
if (params.want_full_screen && !silent_mode) {
termcapinit(params.term); /* set terminal name and get terminal
capabilities (will set full_screen) */
if (embedded_mode) {
// In embedded mode don't do terminal-related initializations, assume an
// initial screen size of 80x20
full_screen = true;
set_shellsize(80, 20, false);
} else {
// set terminal name and get terminal capabilities (will set full_screen)
// Do some initialization of the screen
termcapinit(params.term);
}
screen_start(); /* don't know where cursor is now */
TIME_MSG("Termcap init");
}
@@ -405,14 +413,18 @@ int main(int argc, char **argv)
TIME_MSG("waiting for return");
}
starttermcap(); /* start termcap if not done by wait_return() */
TIME_MSG("start termcap");
may_req_ambiguous_char_width();
if (!embedded_mode) {
starttermcap(); // start termcap if not done by wait_return()
TIME_MSG("start termcap");
may_req_ambiguous_char_width();
setmouse(); // may start using the mouse
setmouse(); /* may start using the mouse */
if (scroll_region)
scroll_region_reset(); /* In case Rows changed */
scroll_start(); /* may scroll the screen to the right position */
if (scroll_region) {
scroll_region_reset(); // In case Rows changed
}
scroll_start(); // may scroll the screen to the right position
}
/*
* Don't clear the screen when starting in Ex mode, unless using the GUI.
@@ -1015,11 +1027,13 @@ static void command_line_scan(mparm_T *parmp)
msg_putchar('\n');
msg_didout = FALSE;
mch_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "api-msgpack-metadata") == 0) {
} else if (STRICMP(argv[0] + argv_idx, "api-msgpack-metadata") == 0) {
for (unsigned int i = 0; i<msgpack_metadata_size; i++) {
putchar(msgpack_metadata[i]);
}
mch_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "embedded-mode") == 0) {
embedded_mode = true;
} else if (STRNICMP(argv[0] + argv_idx, "literal", 7) == 0) {
#if !defined(UNIX)
parmp->literal = TRUE;
@@ -2200,6 +2214,8 @@ static void usage(void)
main_msg(_("--startuptime <file>\tWrite startup timing messages to <file>"));
main_msg(_("-i <viminfo>\t\tUse <viminfo> instead of .viminfo"));
main_msg(_("--api-msgpack-metadata\tDump API metadata information and exit"));
main_msg(_("--embedded-mode\tUse stdin/stdout as a msgpack-rpc channel. "
"This can be used for embedding Neovim into other programs"));
main_msg(_("-h or --help\tPrint Help (this message) and exit"));
main_msg(_("--version\t\tPrint version information and exit"));