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neovim/src/nvim/main.c
bfredl b773a52515 refactor(env): remove unused mutex 
This was needed when TUI was a thread.
lua code uses os_getenv only on the main thread.
2023-04-20 18:54:00 +02:00

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// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
// Make sure extern symbols are exported on Windows
#ifdef WIN32
# define EXTERN __declspec(dllexport)
#else
# define EXTERN
#endif
#include <assert.h>
#include <limits.h>
#include <msgpack/pack.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "auto/config.h"
#include "nvim/arglist.h"
#include "nvim/ascii.h"
#include "nvim/autocmd.h"
#include "nvim/buffer.h"
#include "nvim/buffer_defs.h"
#include "nvim/channel.h"
#include "nvim/decoration.h"
#include "nvim/decoration_provider.h"
#include "nvim/diff.h"
#include "nvim/drawscreen.h"
#include "nvim/eval.h"
#include "nvim/eval/typval.h"
#include "nvim/eval/typval_defs.h"
#include "nvim/eval/userfunc.h"
#include "nvim/event/multiqueue.h"
#include "nvim/event/stream.h"
#include "nvim/ex_cmds.h"
#include "nvim/ex_docmd.h"
#include "nvim/ex_getln.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/garray.h"
#include "nvim/getchar.h"
#include "nvim/gettext.h"
#include "nvim/globals.h"
#include "nvim/grid.h"
#include "nvim/hashtab.h"
#include "nvim/highlight.h"
#include "nvim/highlight_group.h"
#include "nvim/keycodes.h"
#include "nvim/log.h"
#include "nvim/lua/executor.h"
#include "nvim/macros.h"
#include "nvim/main.h"
#include "nvim/mark.h"
#include "nvim/memfile_defs.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/mouse.h"
#include "nvim/move.h"
#include "nvim/normal.h"
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/option_defs.h"
#include "nvim/optionstr.h"
#include "nvim/os/fileio.h"
#include "nvim/os/input.h"
#include "nvim/os/lang.h"
#include "nvim/os/os.h"
#include "nvim/os/stdpaths_defs.h"
#include "nvim/os/time.h"
#include "nvim/path.h"
#include "nvim/popupmenu.h"
#include "nvim/pos.h"
#include "nvim/profile.h"
#include "nvim/quickfix.h"
#include "nvim/runtime.h"
#include "nvim/shada.h"
#include "nvim/sign.h"
#include "nvim/statusline.h"
#include "nvim/strings.h"
#include "nvim/syntax.h"
#include "nvim/terminal.h"
#include "nvim/types.h"
#include "nvim/ui.h"
#include "nvim/ui_client.h"
#include "nvim/ui_compositor.h"
#include "nvim/version.h"
#include "nvim/vim.h"
#include "nvim/window.h"
#ifdef MSWIN
# include "nvim/os/os_win_console.h"
#endif
#include "nvim/api/extmark.h"
#include "nvim/api/private/defs.h"
#include "nvim/api/private/helpers.h"
#include "nvim/api/ui.h"
#include "nvim/event/loop.h"
#include "nvim/event/process.h"
#include "nvim/msgpack_rpc/channel.h"
#include "nvim/msgpack_rpc/helpers.h"
#include "nvim/msgpack_rpc/server.h"
#include "nvim/os/signal.h"
// values for "window_layout"
enum {
WIN_HOR = 1, // "-o" horizontally split windows
WIN_VER = 2, // "-O" vertically split windows
WIN_TABS = 3, // "-p" windows on tab pages
};
// Values for edit_type.
enum {
EDIT_NONE = 0, // no edit type yet
EDIT_FILE = 1, // file name argument[s] given, use argument list
EDIT_STDIN = 2, // read file from stdin
EDIT_TAG = 3, // tag name argument given, use tagname
EDIT_QF = 4, // start in quickfix mode
};
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "main.c.generated.h"
#endif
Loop main_loop;
static char *argv0 = NULL;
// Error messages
static const char *err_arg_missing = N_("Argument missing after");
static const char *err_opt_garbage = N_("Garbage after option argument");
static const char *err_opt_unknown = N_("Unknown option argument");
static const char *err_too_many_args = N_("Too many edit arguments");
static const char *err_extra_cmd =
N_("Too many \"+command\", \"-c command\" or \"--cmd command\" arguments");
void event_init(void)
{
loop_init(&main_loop, NULL);
resize_events = multiqueue_new_child(main_loop.events);
// early msgpack-rpc initialization
msgpack_rpc_helpers_init();
input_init();
signal_init();
// finish mspgack-rpc initialization
channel_init();
terminal_init();
ui_init();
TIME_MSG("event init");
}
/// @returns false if main_loop could not be closed gracefully
bool event_teardown(void)
{
if (!main_loop.events) {
input_stop();
return true;
}
multiqueue_process_events(main_loop.events);
loop_poll_events(&main_loop, 0); // Drain thread_events, fast_events.
input_stop();
channel_teardown();
process_teardown(&main_loop);
timer_teardown();
server_teardown();
signal_teardown();
terminal_teardown();
return loop_close(&main_loop, true);
}
/// Performs early initialization.
///
/// Needed for unit tests. Must be called after `time_init()`.
void early_init(mparm_T *paramp)
{
estack_init();
cmdline_init();
eval_init(); // init global variables
init_path(argv0 ? argv0 : "nvim");
init_normal_cmds(); // Init the table of Normal mode commands.
runtime_init();
highlight_init();
#ifdef MSWIN
OSVERSIONINFO ovi;
ovi.dwOSVersionInfoSize = sizeof(ovi);
// Disable warning about GetVersionExA being deprecated. There doesn't seem to be a convenient
// replacement that doesn't add a ton of extra code as of writing this.
# ifdef _MSC_VER
# pragma warning(suppress : 4996)
GetVersionEx(&ovi);
# else
GetVersionEx(&ovi);
# endif
snprintf(windowsVersion, sizeof(windowsVersion), "%d.%d",
(int)ovi.dwMajorVersion, (int)ovi.dwMinorVersion);
#endif
TIME_MSG("early init");
// Setup to use the current locale (for ctype() and many other things).
// NOTE: Translated messages with encodings other than latin1 will not
// work until set_init_1() has been called!
init_locale();
// tabpage local options (p_ch) must be set before allocating first tabpage.
set_init_tablocal();
// Allocate the first tabpage, window and buffer.
win_alloc_first();
TIME_MSG("init first window");
alist_init(&global_alist); // Init the argument list to empty.
global_alist.id = 0;
// Set the default values for the options.
// First find out the home directory, needed to expand "~" in options.
init_homedir(); // find real value of $HOME
set_init_1(paramp != NULL ? paramp->clean : false);
log_init();
TIME_MSG("inits 1");
set_lang_var(); // set v:lang and v:ctype
init_signs();
}
#ifdef MAKE_LIB
int nvim_main(int argc, char **argv); // silence -Wmissing-prototypes
int nvim_main(int argc, char **argv)
#elif defined(MSWIN)
int wmain(int argc, wchar_t **argv_w) // multibyte args on Windows. #7060
#else
int main(int argc, char **argv)
#endif
{
#if defined(MSWIN) && !defined(MAKE_LIB)
char **argv = xmalloc((size_t)argc * sizeof(char *));
for (int i = 0; i < argc; i++) {
char *buf = NULL;
utf16_to_utf8(argv_w[i], -1, &buf);
assert(buf);
argv[i] = buf;
}
#endif
argv0 = argv[0];
if (argc > 1 && STRICMP(argv[1], "-ll") == 0) {
if (argc == 2) {
print_mainerr(err_arg_missing, argv[1]);
exit(1);
}
nlua_run_script(argv, argc, 3);
}
char *fname = NULL; // file name from command line
mparm_T params; // various parameters passed between
// main() and other functions.
char *cwd = NULL; // current working dir on startup
time_init();
// Many variables are in `params` so that we can pass them around easily.
// `argc` and `argv` are also copied, so that they can be changed.
init_params(&params, argc, argv);
// Since os_open is called during the init_startuptime, we need to call
// fs_init before it.
fs_init();
init_startuptime(&params);
// Need to find "--clean" before actually parsing arguments.
for (int i = 1; i < params.argc; i++) {
if (STRICMP(params.argv[i], "--clean") == 0) {
params.clean = true;
break;
}
}
event_init();
early_init(&params);
set_argv_var(argv, argc); // set v:argv
// Check if we have an interactive window.
check_and_set_isatty(&params);
// Process the command line arguments. File names are put in the global
// argument list "global_alist".
command_line_scan(&params);
nlua_init(argv, argc, params.lua_arg0);
TIME_MSG("init lua interpreter");
if (embedded_mode) {
const char *err;
if (!channel_from_stdio(true, CALLBACK_READER_INIT, &err)) {
abort();
}
}
#ifdef MSWIN
// on windows we use CONIN special file, thus we don't know this yet.
bool has_term = true;
#else
bool has_term = (stdin_isatty || stdout_isatty || stderr_isatty);
#endif
bool use_builtin_ui = (has_term && !headless_mode && !embedded_mode && !silent_mode);
// don't bind the server yet, if we are using builtin ui.
// This will be done when nvim server has been forked from the ui process
if (!use_builtin_ui) {
server_init(params.listen_addr);
}
if (params.remote) {
remote_request(&params, params.remote, params.server_addr, argc, argv,
use_builtin_ui);
}
bool remote_ui = (ui_client_channel_id != 0);
if (use_builtin_ui && !remote_ui) {
ui_client_forward_stdin = !stdin_isatty;
uint64_t rv = ui_client_start_server(params.argc, params.argv);
if (!rv) {
os_errmsg("Failed to start Nvim server!\n");
getout(1);
}
ui_client_channel_id = rv;
}
if (GARGCOUNT > 0) {
fname = get_fname(&params, cwd);
}
// Recovery mode without a file name: List swap files.
// In this case, no UI is needed.
if (recoverymode && fname == NULL) {
headless_mode = true;
}
TIME_MSG("expanding arguments");
if (params.diff_mode && params.window_count == -1) {
params.window_count = 0; // open up to 3 windows
}
// Don't redraw until much later.
RedrawingDisabled++;
setbuf(stdout, NULL);
full_screen = !silent_mode;
// Set the default values for the options that use Rows and Columns.
win_init_size();
// Set the 'diff' option now, so that it can be checked for in a vimrc
// file. There is no buffer yet though.
if (params.diff_mode) {
diff_win_options(firstwin, false);
}
assert(p_ch >= 0 && Rows >= p_ch && Rows - p_ch <= INT_MAX);
cmdline_row = (int)(Rows - p_ch);
msg_row = cmdline_row;
default_grid_alloc(); // allocate screen buffers
set_init_2(headless_mode);
TIME_MSG("inits 2");
msg_scroll = true;
no_wait_return = true;
init_highlight(true, false); // Default highlight groups.
ui_comp_syn_init();
TIME_MSG("init highlight");
// Set the break level after the terminal is initialized.
debug_break_level = params.use_debug_break_level;
// Read ex-commands if invoked with "-es".
if (!stdin_isatty && !params.input_istext && silent_mode && exmode_active) {
input_start();
}
if (ui_client_channel_id) {
ui_client_run(remote_ui); // NORETURN
}
assert(!ui_client_channel_id && !use_builtin_ui);
// Wait for UIs to set up Nvim or show early messages
// and prompts (--cmd, swapfile dialog, …).
bool use_remote_ui = (embedded_mode && !headless_mode);
if (use_remote_ui) {
TIME_MSG("waiting for UI");
remote_ui_wait_for_attach();
TIME_MSG("done waiting for UI");
firstwin->w_prev_height = firstwin->w_height; // may have changed
}
// prepare screen now
starting = NO_BUFFERS;
screenclear();
win_new_screensize();
TIME_MSG("clear screen");
// Handle "foo | nvim". EDIT_FILE may be overwritten now. #6299
if (edit_stdin(&params)) {
params.edit_type = EDIT_STDIN;
}
open_script_files(&params);
// Default mappings (incl. menus) & autocommands
Error err = ERROR_INIT;
Object o = NLUA_EXEC_STATIC("return vim._init_defaults()",
(Array)ARRAY_DICT_INIT, &err);
assert(!ERROR_SET(&err));
api_clear_error(&err);
assert(o.type == kObjectTypeNil);
api_free_object(o);
TIME_MSG("init default mappings & autocommands");
bool vimrc_none = strequal(params.use_vimrc, "NONE");
// Reset 'loadplugins' for "-u NONE" before "--cmd" arguments.
// Allows for setting 'loadplugins' there.
// For --clean we still want to load plugins.
p_lpl = vimrc_none ? params.clean : p_lpl;
// Execute --cmd arguments.
exe_pre_commands(&params);
if (!vimrc_none || params.clean) {
// Sources ftplugin.vim and indent.vim. We do this *before* the user startup scripts to ensure
// ftplugins run before FileType autocommands defined in the init file (which allows those
// autocommands to overwrite settings from ftplugins).
filetype_plugin_enable();
}
// Source startup scripts.
source_startup_scripts(&params);
// If using the runtime (-u is not NONE), enable syntax & filetype plugins.
if (!vimrc_none || params.clean) {
// Sources filetype.lua and filetype.vim unless the user explicitly disabled it with :filetype
// off.
filetype_maybe_enable();
// Sources syntax/syntax.vim. We do this *after* the user startup scripts so that users can
// disable syntax highlighting with `:syntax off` if they wish.
syn_maybe_enable();
}
// Read all the plugin files.
load_plugins();
// Decide about window layout for diff mode after reading vimrc.
set_window_layout(&params);
// Recovery mode without a file name: List swap files.
// Uses the 'dir' option, therefore it must be after the initializations.
if (recoverymode && fname == NULL) {
recover_names(NULL, true, NULL, 0, NULL);
os_exit(0);
}
// Set some option defaults after reading vimrc files.
set_init_3();
TIME_MSG("inits 3");
// "-n" argument: Disable swap file by setting 'updatecount' to 0.
// Note that this overrides anything from a vimrc file.
if (params.no_swap_file) {
p_uc = 0;
}
// XXX: Minimize 'updatetime' for -es/-Es. #7679
if (silent_mode) {
p_ut = 1;
}
// Read in registers, history etc, from the ShaDa file.
// This is where v:oldfiles gets filled.
if (*p_shada != NUL) {
shada_read_everything(NULL, false, true);
TIME_MSG("reading ShaDa");
}
// It's better to make v:oldfiles an empty list than NULL.
if (get_vim_var_list(VV_OLDFILES) == NULL) {
set_vim_var_list(VV_OLDFILES, tv_list_alloc(0));
}
// "-q errorfile": Load the error file now.
// If the error file can't be read, exit before doing anything else.
handle_quickfix(&params);
//
// Start putting things on the screen.
// Scroll screen down before drawing over it
// Clear screen now, so file message will not be cleared.
//
starting = NO_BUFFERS;
no_wait_return = false;
if (!exmode_active) {
msg_scroll = false;
}
// Read file (text, not commands) from stdin if:
// - stdin is not a tty
// - and -e/-es was not given
//
// Do this before starting Raw mode, because it may change things that the
// writing end of the pipe doesn't like, e.g., in case stdin and stderr
// are the same terminal: "cat | vim -".
// Using autocommands here may cause trouble...
if (params.edit_type == EDIT_STDIN && !recoverymode) {
read_stdin();
}
setmouse(); // may start using the mouse
redraw_later(curwin, UPD_VALID);
no_wait_return = true;
//
// Create the requested number of windows and edit buffers in them.
// Also does recovery if "recoverymode" set.
//
create_windows(&params);
TIME_MSG("opening buffers");
// Clear v:swapcommand
set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
// Ex starts at last line of the file.
if (exmode_active) {
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
}
apply_autocmds(EVENT_BUFENTER, NULL, NULL, false, curbuf);
TIME_MSG("BufEnter autocommands");
setpcmark();
// When started with "-q errorfile" jump to first error now.
if (params.edit_type == EDIT_QF) {
qf_jump(NULL, 0, 0, false);
TIME_MSG("jump to first error");
}
// If opened more than one window, start editing files in the other
// windows.
edit_buffers(&params, cwd);
xfree(cwd);
if (params.diff_mode) {
// set options in each window for "nvim -d".
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if (!wp->w_arg_idx_invalid) {
diff_win_options(wp, true);
}
}
}
// Shorten any of the filenames, but only when absolute.
shorten_fnames(false);
// Need to jump to the tag before executing the '-c command'.
// Makes "vim -c '/return' -t main" work.
handle_tag(params.tagname);
// Execute any "+", "-c" and "-S" arguments.
if (params.n_commands > 0) {
exe_commands(&params);
}
starting = 0;
RedrawingDisabled = 0;
redraw_all_later(UPD_NOT_VALID);
no_wait_return = false;
// 'autochdir' has been postponed.
do_autochdir();
set_vim_var_nr(VV_VIM_DID_ENTER, 1L);
apply_autocmds(EVENT_VIMENTER, NULL, NULL, false, curbuf);
TIME_MSG("VimEnter autocommands");
if (use_remote_ui) {
do_autocmd_uienter(CHAN_STDIO, true);
TIME_MSG("UIEnter autocommands");
}
#ifdef MSWIN
if (use_remote_ui) {
os_icon_init();
}
os_title_save();
#endif
// Adjust default register name for "unnamed" in 'clipboard'. Can only be
// done after the clipboard is available and all initial commands that may
// modify the 'clipboard' setting have run; i.e. just before entering the
// main loop.
set_reg_var(get_default_register_name());
// When a startup script or session file setup for diff'ing and
// scrollbind, sync the scrollbind now.
if (curwin->w_p_diff && curwin->w_p_scb) {
update_topline(curwin);
check_scrollbind((linenr_T)0, 0L);
TIME_MSG("diff scrollbinding");
}
// If ":startinsert" command used, stuff a dummy command to be able to
// call normal_cmd(), which will then start Insert mode.
if (restart_edit != 0) {
stuffcharReadbuff(K_NOP);
}
// WORKAROUND(mhi): #3023
if (cb_flags & CB_UNNAMEDMASK) {
(void)eval_has_provider("clipboard");
}
if (params.luaf != NULL) {
bool lua_ok = nlua_exec_file(params.luaf);
TIME_MSG("executing Lua -l script");
getout(lua_ok ? 0 : 1);
}
TIME_MSG("before starting main loop");
ILOG("starting main loop");
// Main loop: never returns.
normal_enter(false, false);
#if defined(MSWIN) && !defined(MAKE_LIB)
xfree(argv);
#endif
return 0;
}
void os_exit(int r)
FUNC_ATTR_NORETURN
{
exiting = true;
if (ui_client_channel_id) {
ui_client_stop();
} else {
ui_flush();
ui_call_stop();
ml_close_all(true); // remove all memfiles
}
if (!event_teardown() && r == 0) {
r = 1; // Exit with error if main_loop did not teardown gracefully.
}
if (used_stdin) {
stream_set_blocking(STDIN_FILENO, true); // normalize stream (#2598)
}
ILOG("Nvim exit: %d", r);
#ifdef EXITFREE
free_all_mem();
#endif
exit(r);
}
/// Exit properly
void getout(int exitval)
FUNC_ATTR_NORETURN
{
assert(!ui_client_channel_id);
exiting = true;
// On error during Ex mode, exit with a non-zero code.
// POSIX requires this, although it's not 100% clear from the standard.
if (exmode_active) {
exitval += ex_exitval;
}
set_vim_var_nr(VV_EXITING, exitval);
// Position the cursor on the last screen line, below all the text
ui_cursor_goto(Rows - 1, 0);
// Invoked all deferred functions in the function stack.
invoke_all_defer();
// Optionally print hashtable efficiency.
hash_debug_results();
if (v_dying <= 1) {
const tabpage_T *next_tp;
// Trigger BufWinLeave for all windows, but only once per buffer.
for (const tabpage_T *tp = first_tabpage; tp != NULL; tp = next_tp) {
next_tp = tp->tp_next;
FOR_ALL_WINDOWS_IN_TAB(wp, tp) {
if (wp->w_buffer == NULL) {
// Autocmd must have close the buffer already, skip.
continue;
}
buf_T *buf = wp->w_buffer;
if (buf_get_changedtick(buf) != -1) {
bufref_T bufref;
set_bufref(&bufref, buf);
apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, false, buf);
if (bufref_valid(&bufref)) {
buf_set_changedtick(buf, -1); // note that we did it already
}
// start all over, autocommands may mess up the lists
next_tp = first_tabpage;
break;
}
}
}
// Trigger BufUnload for buffers that are loaded
FOR_ALL_BUFFERS(buf) {
if (buf->b_ml.ml_mfp != NULL) {
bufref_T bufref;
set_bufref(&bufref, buf);
apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, false, buf);
if (!bufref_valid(&bufref)) {
// Autocmd deleted the buffer.
break;
}
}
}
int unblock = 0;
// deathtrap() blocks autocommands, but we do want to trigger
// VimLeavePre.
if (is_autocmd_blocked()) {
unblock_autocmds();
unblock++;
}
apply_autocmds(EVENT_VIMLEAVEPRE, NULL, NULL, false, curbuf);
if (unblock) {
block_autocmds();
}
}
if (p_shada && *p_shada != NUL) {
// Write out the registers, history, marks etc, to the ShaDa file
shada_write_file(NULL, false);
}
if (v_dying <= 1) {
int unblock = 0;
// deathtrap() blocks autocommands, but we do want to trigger VimLeave.
if (is_autocmd_blocked()) {
unblock_autocmds();
unblock++;
}
apply_autocmds(EVENT_VIMLEAVE, NULL, NULL, false, curbuf);
if (unblock) {
block_autocmds();
}
}
profile_dump();
if (did_emsg) {
// give the user a chance to read the (error) message
no_wait_return = false;
// TODO(justinmk): this may call getout(0), clobbering exitval...
wait_return(false);
}
// Position the cursor again, the autocommands may have moved it
ui_cursor_goto(Rows - 1, 0);
// Apply 'titleold'.
if (p_title && *p_titleold != NUL) {
ui_call_set_title(cstr_as_string(p_titleold));
}
if (garbage_collect_at_exit) {
garbage_collect(false);
}
#ifdef MSWIN
// Restore Windows console icon before exiting.
os_icon_set(NULL, NULL);
os_title_reset();
#endif
os_exit(exitval);
}
/// Preserve files, print contents of `errmsg`, and exit 1.
/// @param errmsg If NULL, this function will not print anything.
///
/// May be called from deadly_signal().
void preserve_exit(const char *errmsg)
FUNC_ATTR_NORETURN
{
// 'true' when we are sure to exit, e.g., after a deadly signal
static bool really_exiting = false;
// Prevent repeated calls into this method.
if (really_exiting) {
if (used_stdin) {
// normalize stream (#2598)
stream_set_blocking(STDIN_FILENO, true);
}
exit(2);
}
really_exiting = true;
// Ignore SIGHUP while we are already exiting. #9274
signal_reject_deadly();
if (ui_client_channel_id) {
// For TUI: exit alternate screen so that the error messages can be seen.
ui_client_stop();
}
if (errmsg != NULL) {
os_errmsg(errmsg);
os_errmsg("\n");
}
if (ui_client_channel_id) {
os_exit(1);
}
ml_close_notmod(); // close all not-modified buffers
FOR_ALL_BUFFERS(buf) {
if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL) {
if (errmsg != NULL) {
os_errmsg("Vim: preserving files...\r\n");
}
ml_sync_all(false, false, true); // preserve all swap files
break;
}
}
ml_close_all(false); // close all memfiles, without deleting
if (errmsg != NULL) {
os_errmsg("Vim: Finished.\r\n");
}
getout(1);
}
/// Gets the integer value of a numeric command line argument if given,
/// such as '-o10'.
///
/// @param[in] p pointer to argument
/// @param[in, out] idx pointer to index in argument, is incremented
/// @param[in] def default value
///
/// @return def unmodified if:
/// - argument isn't given
/// - argument is non-numeric
///
/// @return argument's numeric value otherwise
static int get_number_arg(const char *p, int *idx, int def)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
if (ascii_isdigit(p[*idx])) { // -V522
def = atoi(&(p[*idx]));
while (ascii_isdigit(p[*idx])) {
*idx = *idx + 1;
}
}
return def;
}
static uint64_t server_connect(char *server_addr, const char **errmsg)
{
if (server_addr == NULL) {
*errmsg = "no address specified";
return 0;
}
CallbackReader on_data = CALLBACK_READER_INIT;
const char *error = NULL;
bool is_tcp = strrchr(server_addr, ':') ? true : false;
// connected to channel
uint64_t chan = channel_connect(is_tcp, server_addr, true, on_data, 50, &error);
if (error) {
*errmsg = error;
return 0;
}
return chan;
}
/// Handle remote subcommands
static void remote_request(mparm_T *params, int remote_args, char *server_addr, int argc,
char **argv, bool ui_only)
{
bool is_ui = strequal(argv[remote_args], "--remote-ui");
if (ui_only && !is_ui) {
// TODO(bfredl): this implies always starting the TUI.
// if we be smart we could delay this past should_exit
return;
}
const char *connect_error = NULL;
uint64_t chan = server_connect(server_addr, &connect_error);
Object rvobj = OBJECT_INIT;
if (is_ui) {
if (!chan) {
os_errmsg("Remote ui failed to start: ");
os_errmsg(connect_error);
os_errmsg("\n");
os_exit(1);
}
ui_client_channel_id = chan;
return;
}
Array args = ARRAY_DICT_INIT;
for (int t_argc = remote_args; t_argc < argc; t_argc++) {
String arg_s = cstr_to_string(argv[t_argc]);
ADD(args, STRING_OBJ(arg_s));
}
Error err = ERROR_INIT;
Array a = ARRAY_DICT_INIT;
ADD(a, INTEGER_OBJ((int)chan));
ADD(a, CSTR_TO_OBJ(server_addr));
ADD(a, CSTR_TO_OBJ(connect_error));
ADD(a, ARRAY_OBJ(args));
String s = STATIC_CSTR_AS_STRING("return vim._cs_remote(...)");
Object o = nlua_exec(s, a, &err);
api_free_array(a);
if (ERROR_SET(&err)) {
os_errmsg(err.msg);
os_errmsg("\n");
os_exit(2);
}
if (o.type == kObjectTypeDictionary) {
rvobj.data.dictionary = o.data.dictionary;
} else {
os_errmsg("vim._cs_remote returned unexpected value\n");
os_exit(2);
}
TriState should_exit = kNone;
TriState tabbed = kNone;
for (size_t i = 0; i < rvobj.data.dictionary.size; i++) {
if (strcmp(rvobj.data.dictionary.items[i].key.data, "errmsg") == 0) {
if (rvobj.data.dictionary.items[i].value.type != kObjectTypeString) {
os_errmsg("vim._cs_remote returned an unexpected type for 'errmsg'\n");
os_exit(2);
}
os_errmsg(rvobj.data.dictionary.items[i].value.data.string.data);
os_errmsg("\n");
os_exit(2);
} else if (strcmp(rvobj.data.dictionary.items[i].key.data, "tabbed") == 0) {
if (rvobj.data.dictionary.items[i].value.type != kObjectTypeBoolean) {
os_errmsg("vim._cs_remote returned an unexpected type for 'tabbed'\n");
os_exit(2);
}
tabbed = rvobj.data.dictionary.items[i].value.data.boolean ? kTrue : kFalse;
} else if (strcmp(rvobj.data.dictionary.items[i].key.data, "should_exit") == 0) {
if (rvobj.data.dictionary.items[i].value.type != kObjectTypeBoolean) {
os_errmsg("vim._cs_remote returned an unexpected type for 'should_exit'\n");
os_exit(2);
}
should_exit = rvobj.data.dictionary.items[i].value.data.boolean ? kTrue : kFalse;
}
}
if (should_exit == kNone || tabbed == kNone) {
os_errmsg("vim._cs_remote didn't return a value for should_exit or tabbed, bailing\n");
os_exit(2);
}
api_free_object(o);
if (should_exit == kTrue) {
os_exit(0);
}
if (tabbed == kTrue) {
params->window_count = argc - remote_args - 1;
params->window_layout = WIN_TABS;
}
}
/// Decides whether text (as opposed to commands) will be read from stdin.
/// @see EDIT_STDIN
static bool edit_stdin(mparm_T *parmp)
{
bool implicit = !headless_mode
&& !(embedded_mode && stdin_fd <= 0)
&& (!exmode_active || parmp->input_istext)
&& !stdin_isatty
&& parmp->scriptin == NULL; // `-s -` was not given.
return parmp->had_stdin_file || implicit;
}
/// Scan the command line arguments.
static void command_line_scan(mparm_T *parmp)
{
int argc = parmp->argc;
char **argv = parmp->argv;
int argv_idx; // index in argv[n][]
bool had_minmin = false; // found "--" argument
int want_argument; // option argument with argument
long n;
argc--;
argv++;
argv_idx = 1; // active option letter is argv[0][argv_idx]
while (argc > 0) {
// "+" or "+{number}" or "+/{pat}" or "+{command}" argument.
if (argv[0][0] == '+' && !had_minmin) {
if (parmp->n_commands >= MAX_ARG_CMDS) {
mainerr(err_extra_cmd, NULL);
}
argv_idx = -1; // skip to next argument
if (argv[0][1] == NUL) {
parmp->commands[parmp->n_commands++] = "$";
} else {
parmp->commands[parmp->n_commands++] = &(argv[0][1]);
}
} else if (argv[0][0] == '-' && !had_minmin) {
// Optional argument.
want_argument = false;
char c = argv[0][argv_idx++];
switch (c) {
case NUL: // "nvim -" read from stdin
if (exmode_active) {
// "nvim -e -" silent mode
silent_mode = true;
parmp->no_swap_file = true;
} else {
if (parmp->edit_type > EDIT_STDIN) {
mainerr(err_too_many_args, argv[0]);
}
parmp->had_stdin_file = true;
parmp->edit_type = EDIT_STDIN;
}
argv_idx = -1; // skip to next argument
break;
case '-': // "--" No more option arguments.
// "--help" give help message
// "--version" give version message
// "--noplugin[s]" skip plugins
// "--cmd <cmd>" execute cmd before vimrc
// "--remote" execute commands remotey on a server
// "--server" name of vim server to send remote commands to
if (STRICMP(argv[0] + argv_idx, "help") == 0) {
usage();
os_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "version") == 0) {
version();
os_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "api-info") == 0) {
FileDescriptor fp;
const int fof_ret = file_open_fd(&fp, STDOUT_FILENO,
kFileWriteOnly);
msgpack_packer *p = msgpack_packer_new(&fp, msgpack_file_write);
if (fof_ret != 0) {
semsg(_("E5421: Failed to open stdin: %s"), os_strerror(fof_ret));
}
if (p == NULL) {
emsg(_(e_outofmem));
}
Object md = DICTIONARY_OBJ(api_metadata());
msgpack_rpc_from_object(md, p);
msgpack_packer_free(p);
const int ff_ret = file_flush(&fp);
if (ff_ret < 0) {
msgpack_file_write_error(ff_ret);
}
os_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "headless") == 0) {
headless_mode = true;
} else if (STRICMP(argv[0] + argv_idx, "embed") == 0) {
embedded_mode = true;
} else if (STRNICMP(argv[0] + argv_idx, "listen", 6) == 0) {
want_argument = true;
argv_idx += 6;
} else if (STRNICMP(argv[0] + argv_idx, "literal", 7) == 0) {
// Do nothing: file args are always literal. #7679
} else if (STRNICMP(argv[0] + argv_idx, "remote", 6) == 0) {
parmp->remote = parmp->argc - argc;
} else if (STRNICMP(argv[0] + argv_idx, "server", 6) == 0) {
want_argument = true;
argv_idx += 6;
} else if (STRNICMP(argv[0] + argv_idx, "noplugin", 8) == 0) {
p_lpl = false;
} else if (STRNICMP(argv[0] + argv_idx, "cmd", 3) == 0) {
want_argument = true;
argv_idx += 3;
} else if (STRNICMP(argv[0] + argv_idx, "startuptime", 11) == 0) {
want_argument = true;
argv_idx += 11;
} else if (STRNICMP(argv[0] + argv_idx, "clean", 5) == 0) {
parmp->use_vimrc = "NONE";
parmp->clean = true;
set_option_value_give_err("shadafile", 0L, "NONE", 0);
} else if (STRNICMP(argv[0] + argv_idx, "luamod-dev", 9) == 0) {
nlua_disable_preload = true;
} else {
if (argv[0][argv_idx]) {
mainerr(err_opt_unknown, argv[0]);
}
had_minmin = true;
}
if (!want_argument) {
argv_idx = -1; // skip to next argument
}
break;
case 'A': // "-A" start in Arabic mode.
set_option_value_give_err("arabic", 1L, NULL, 0);
break;
case 'b': // "-b" binary mode.
// Needs to be effective before expanding file names, because
// for Win32 this makes us edit a shortcut file itself,
// instead of the file it links to.
set_options_bin(curbuf->b_p_bin, 1, 0);
curbuf->b_p_bin = 1; // Binary file I/O.
break;
case 'D': // "-D" Debugging
parmp->use_debug_break_level = 9999;
break;
case 'd': // "-d" 'diff'
parmp->diff_mode = true;
break;
case 'e': // "-e" Ex mode
exmode_active = true;
break;
case 'E': // "-E" Ex mode
exmode_active = true;
parmp->input_istext = true;
break;
case 'f': // "-f" GUI: run in foreground.
break;
case '?': // "-?" give help message (for MS-Windows)
case 'h': // "-h" give help message
usage();
os_exit(0);
case 'H': // "-H" start in Hebrew mode: rl + keymap=hebrew set.
set_option_value_give_err("keymap", 0L, "hebrew", 0);
set_option_value_give_err("rl", 1L, NULL, 0);
break;
case 'M': // "-M" no changes or writing of files
reset_modifiable();
FALLTHROUGH;
case 'm': // "-m" no writing of files
p_write = false;
break;
case 'N': // "-N" Nocompatible
case 'X': // "-X" Do not connect to X server
// No-op
break;
case 'n': // "-n" no swap file
parmp->no_swap_file = true;
break;
case 'p': // "-p[N]" open N tab pages
// default is 0: open window for each file
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_TABS;
break;
case 'o': // "-o[N]" open N horizontal split windows
// default is 0: open window for each file
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_HOR;
break;
case 'O': // "-O[N]" open N vertical split windows
// default is 0: open window for each file
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_VER;
break;
case 'q': // "-q" QuickFix mode
if (parmp->edit_type != EDIT_NONE) {
mainerr(err_too_many_args, argv[0]);
}
parmp->edit_type = EDIT_QF;
if (argv[0][argv_idx]) { // "-q{errorfile}"
parmp->use_ef = argv[0] + argv_idx;
argv_idx = -1;
} else if (argc > 1) { // "-q {errorfile}"
want_argument = true;
}
break;
case 'R': // "-R" readonly mode
readonlymode = true;
curbuf->b_p_ro = true;
p_uc = 10000; // don't update very often
break;
case 'r': // "-r" recovery mode
case 'L': // "-L" recovery mode
recoverymode = 1;
break;
case 's':
if (exmode_active) { // "-es" silent (batch) Ex-mode
silent_mode = true;
parmp->no_swap_file = true;
} else { // "-s {scriptin}" read from script file
want_argument = true;
}
break;
case 't': // "-t {tag}" or "-t{tag}" jump to tag
if (parmp->edit_type != EDIT_NONE) {
mainerr(err_too_many_args, argv[0]);
}
parmp->edit_type = EDIT_TAG;
if (argv[0][argv_idx]) { // "-t{tag}"
parmp->tagname = argv[0] + argv_idx;
argv_idx = -1;
} else { // "-t {tag}"
want_argument = true;
}
break;
case 'v':
version();
os_exit(0);
case 'V': // "-V{N}" Verbose level
// default is 10: a little bit verbose
p_verbose = get_number_arg(argv[0], &argv_idx, 10);
if (argv[0][argv_idx] != NUL) {
set_option_value_give_err("verbosefile", 0L, argv[0] + argv_idx, 0);
argv_idx = (int)strlen(argv[0]);
}
break;
case 'w': // "-w{number}" set window height
// "-w {scriptout}" write to script
if (ascii_isdigit((argv[0])[argv_idx])) {
n = get_number_arg(argv[0], &argv_idx, 10);
set_option_value_give_err("window", n, NULL, 0);
break;
}
want_argument = true;
break;
case 'c': // "-c{command}" or "-c {command}" exec command
if (argv[0][argv_idx] != NUL) {
if (parmp->n_commands >= MAX_ARG_CMDS) {
mainerr(err_extra_cmd, NULL);
}
parmp->commands[parmp->n_commands++] = argv[0] + argv_idx;
argv_idx = -1;
break;
}
FALLTHROUGH;
case 'S': // "-S {file}" execute Vim script
case 'i': // "-i {shada}" use for ShaDa file
case 'l': // "-l {file}" Lua mode
case 'u': // "-u {vimrc}" vim inits file
case 'U': // "-U {gvimrc}" gvim inits file
case 'W': // "-W {scriptout}" overwrite
want_argument = true;
break;
default:
mainerr(err_opt_unknown, argv[0]);
}
// Handle option arguments with argument.
if (want_argument) {
// Check for garbage immediately after the option letter.
if (argv[0][argv_idx] != NUL) {
mainerr(err_opt_garbage, argv[0]);
}
argc--;
if (argc < 1 && c != 'S') { // -S has an optional argument
mainerr(err_arg_missing, argv[0]);
}
argv++;
argv_idx = -1;
switch (c) {
case 'c': // "-c {command}" execute command
case 'S': // "-S {file}" execute Vim script
if (parmp->n_commands >= MAX_ARG_CMDS) {
mainerr(err_extra_cmd, NULL);
}
if (c == 'S') {
char *a;
if (argc < 1) {
// "-S" without argument: use default session file name.
a = SESSION_FILE;
} else if (argv[0][0] == '-') {
// "-S" followed by another option: use default session file.
a = SESSION_FILE;
argc++;
argv--;
} else {
a = argv[0];
}
size_t s_size = strlen(a) + 9;
char *s = xmalloc(s_size);
snprintf(s, s_size, "so %s", a);
parmp->cmds_tofree[parmp->n_commands] = true;
parmp->commands[parmp->n_commands++] = s;
} else {
parmp->commands[parmp->n_commands++] = argv[0];
}
break;
case '-':
if (strequal(argv[-1], "--cmd")) {
// "--cmd {command}" execute command
if (parmp->n_pre_commands >= MAX_ARG_CMDS) {
mainerr(err_extra_cmd, NULL);
}
parmp->pre_commands[parmp->n_pre_commands++] = argv[0];
} else if (strequal(argv[-1], "--listen")) {
// "--listen {address}"
parmp->listen_addr = argv[0];
} else if (strequal(argv[-1], "--server")) {
// "--server {address}"
parmp->server_addr = argv[0];
}
// "--startuptime <file>" already handled
break;
case 'q': // "-q {errorfile}" QuickFix mode
parmp->use_ef = argv[0];
break;
case 'i': // "-i {shada}" use for shada
set_option_value_give_err("shadafile", 0L, argv[0], 0);
break;
case 'l': // "-l" Lua script: args after "-l".
headless_mode = true;
silent_mode = true;
p_verbose = 1;
parmp->no_swap_file = true;
parmp->use_vimrc = parmp->use_vimrc ? parmp->use_vimrc : "NONE";
if (p_shadafile == NULL || *p_shadafile == NUL) {
set_option_value_give_err("shadafile", 0L, "NONE", 0);
}
parmp->luaf = argv[0];
argc--;
if (argc > 0) { // Lua args after "-l <file>".
parmp->lua_arg0 = parmp->argc - argc;
argc = 0;
}
break;
case 's': // "-s {scriptin}" read from script file
if (parmp->scriptin != NULL) {
scripterror:
vim_snprintf(IObuff, IOSIZE,
_("Attempt to open script file again: \"%s %s\"\n"),
argv[-1], argv[0]);
os_errmsg(IObuff);
os_exit(2);
}
parmp->scriptin = argv[0];
break;
case 't': // "-t {tag}"
parmp->tagname = argv[0];
break;
case 'u': // "-u {vimrc}" vim inits file
parmp->use_vimrc = argv[0];
break;
case 'U': // "-U {gvimrc}" gvim inits file
break;
case 'w': // "-w {nr}" 'window' value
// "-w {scriptout}" append to script file
if (ascii_isdigit(*(argv[0]))) {
argv_idx = 0;
n = get_number_arg(argv[0], &argv_idx, 10);
set_option_value_give_err("window", n, NULL, 0);
argv_idx = -1;
break;
}
FALLTHROUGH;
case 'W': // "-W {scriptout}" overwrite script file
if (parmp->scriptout != NULL) {
goto scripterror;
}
parmp->scriptout = argv[0];
parmp->scriptout_append = (c == 'w');
}
}
} else { // File name argument.
argv_idx = -1; // skip to next argument
// Check for only one type of editing.
if (parmp->edit_type > EDIT_STDIN) {
mainerr(err_too_many_args, argv[0]);
}
parmp->edit_type = EDIT_FILE;
// Add the file to the global argument list.
ga_grow(&global_alist.al_ga, 1);
char *p = xstrdup(argv[0]);
if (parmp->diff_mode && os_isdir(p) && GARGCOUNT > 0
&& !os_isdir(alist_name(&GARGLIST[0]))) {
char *r = concat_fnames(p, path_tail(alist_name(&GARGLIST[0])), true);
xfree(p);
p = r;
}
#ifdef USE_FNAME_CASE
// Make the case of the file name match the actual file.
path_fix_case(p);
#endif
int alist_fnum_flag = edit_stdin(parmp)
? 1 // add buffer nr after exp.
: 2; // add buffer number now and use curbuf
alist_add(&global_alist, p, alist_fnum_flag);
}
// If there are no more letters after the current "-", go to next argument.
// argv_idx is set to -1 when the current argument is to be skipped.
if (argv_idx <= 0 || argv[0][argv_idx] == NUL) {
argc--;
argv++;
argv_idx = 1;
}
}
if (embedded_mode && (silent_mode || parmp->luaf)) {
mainerr(_("--embed conflicts with -es/-Es/-l"), NULL);
}
// If there is a "+123" or "-c" command, set v:swapcommand to the first one.
if (parmp->n_commands > 0) {
const size_t swcmd_len = strlen(parmp->commands[0]) + 3;
char *const swcmd = xmalloc(swcmd_len);
snprintf(swcmd, swcmd_len, ":%s\r", parmp->commands[0]);
set_vim_var_string(VV_SWAPCOMMAND, swcmd, -1);
xfree(swcmd);
}
TIME_MSG("parsing arguments");
}
// Many variables are in "params" so that we can pass them to invoked
// functions without a lot of arguments. "argc" and "argv" are also
// copied, so that they can be changed.
static void init_params(mparm_T *paramp, int argc, char **argv)
{
CLEAR_POINTER(paramp);
paramp->argc = argc;
paramp->argv = argv;
paramp->use_debug_break_level = -1;
paramp->window_count = -1;
paramp->listen_addr = NULL;
paramp->server_addr = NULL;
paramp->remote = 0;
paramp->luaf = NULL;
paramp->lua_arg0 = -1;
}
/// Initialize global startuptime file if "--startuptime" passed as an argument.
static void init_startuptime(mparm_T *paramp)
{
for (int i = 1; i < paramp->argc - 1; i++) {
if (STRICMP(paramp->argv[i], "--startuptime") == 0) {
time_fd = os_fopen(paramp->argv[i + 1], "a");
time_start("--- NVIM STARTING ---");
break;
}
}
}
static void check_and_set_isatty(mparm_T *paramp)
{
stdin_isatty = os_isatty(STDIN_FILENO);
stdout_isatty = os_isatty(STDOUT_FILENO);
stderr_isatty = os_isatty(STDERR_FILENO);
TIME_MSG("window checked");
}
// Sets v:progname and v:progpath. Also modifies $PATH on Windows.
static void init_path(const char *exename)
FUNC_ATTR_NONNULL_ALL
{
char exepath[MAXPATHL] = { 0 };
size_t exepathlen = MAXPATHL;
// Make v:progpath absolute.
if (os_exepath(exepath, &exepathlen) != 0) {
// Fall back to argv[0]. Missing procfs? #6734
path_guess_exepath(exename, exepath, sizeof(exepath));
}
set_vim_var_string(VV_PROGPATH, exepath, -1);
set_vim_var_string(VV_PROGNAME, path_tail(exename), -1);
#ifdef MSWIN
// Append the process start directory to $PATH, so that ":!foo" finds tools
// shipped with Windows package. This also mimics SearchPath().
os_setenv_append_path(exepath);
#endif
}
/// Get filename from command line, if any.
static char *get_fname(mparm_T *parmp, char *cwd)
{
return alist_name(&GARGLIST[0]);
}
// Decide about window layout for diff mode after reading vimrc.
static void set_window_layout(mparm_T *paramp)
{
if (paramp->diff_mode && paramp->window_layout == 0) {
if (diffopt_horizontal()) {
paramp->window_layout = WIN_HOR; // use horizontal split
} else {
paramp->window_layout = WIN_VER; // use vertical split
}
}
}
// "-q errorfile": Load the error file now.
// If the error file can't be read, exit before doing anything else.
static void handle_quickfix(mparm_T *paramp)
{
if (paramp->edit_type == EDIT_QF) {
if (paramp->use_ef != NULL) {
set_string_option_direct("ef", -1, paramp->use_ef, OPT_FREE, SID_CARG);
}
vim_snprintf(IObuff, IOSIZE, "cfile %s", p_ef);
if (qf_init(NULL, p_ef, p_efm, true, IObuff, p_menc) < 0) {
msg_putchar('\n');
os_exit(3);
}
TIME_MSG("reading errorfile");
}
}
// Need to jump to the tag before executing the '-c command'.
// Makes "vim -c '/return' -t main" work.
static void handle_tag(char *tagname)
{
if (tagname != NULL) {
swap_exists_did_quit = false;
vim_snprintf(IObuff, IOSIZE, "ta %s", tagname);
do_cmdline_cmd(IObuff);
TIME_MSG("jumping to tag");
// If the user doesn't want to edit the file then we quit here.
if (swap_exists_did_quit) {
getout(1);
}
}
}
/// Read text from stdin.
static void read_stdin(void)
{
// When getting the ATTENTION prompt here, use a dialog.
swap_exists_action = SEA_DIALOG;
no_wait_return = true;
bool save_msg_didany = msg_didany;
set_buflisted(true);
// Create memfile and read from stdin.
(void)open_buffer(true, NULL, 0);
if (buf_is_empty(curbuf) && curbuf->b_next != NULL) {
// stdin was empty, go to buffer 2 (e.g. "echo file1 | xargs nvim"). #8561
do_cmdline_cmd("silent! bnext");
// Delete the empty stdin buffer.
do_cmdline_cmd("bwipeout 1");
}
no_wait_return = false;
msg_didany = save_msg_didany;
TIME_MSG("reading stdin");
check_swap_exists_action();
}
static void open_script_files(mparm_T *parmp)
{
if (parmp->scriptin) {
int error;
if (strequal(parmp->scriptin, "-")) {
FileDescriptor *stdin_dup = file_open_stdin();
scriptin[0] = stdin_dup;
} else {
scriptin[0] = file_open_new(&error, parmp->scriptin,
kFileReadOnly|kFileNonBlocking, 0);
if (scriptin[0] == NULL) {
vim_snprintf(IObuff, IOSIZE,
_("Cannot open for reading: \"%s\": %s\n"),
parmp->scriptin, os_strerror(error));
os_errmsg(IObuff);
os_exit(2);
}
}
save_typebuf();
}
if (parmp->scriptout) {
scriptout = os_fopen(parmp->scriptout, parmp->scriptout_append ? APPENDBIN : WRITEBIN);
if (scriptout == NULL) {
os_errmsg(_("Cannot open for script output: \""));
os_errmsg(parmp->scriptout);
os_errmsg("\"\n");
os_exit(2);
}
}
}
// Create the requested number of windows and edit buffers in them.
// Also does recovery if "recoverymode" set.
static void create_windows(mparm_T *parmp)
{
// Create the number of windows that was requested.
if (parmp->window_count == -1) { // was not set
parmp->window_count = 1;
}
if (parmp->window_count == 0) {
parmp->window_count = GARGCOUNT;
}
if (parmp->window_count > 1) {
// Don't change the windows if there was a command in vimrc that
// already split some windows
if (parmp->window_layout == 0) {
parmp->window_layout = WIN_HOR;
}
if (parmp->window_layout == WIN_TABS) {
parmp->window_count = make_tabpages(parmp->window_count);
TIME_MSG("making tab pages");
} else if (firstwin->w_next == NULL) {
parmp->window_count = make_windows(parmp->window_count,
parmp->window_layout == WIN_VER);
TIME_MSG("making windows");
} else {
parmp->window_count = win_count();
}
} else {
parmp->window_count = 1;
}
if (recoverymode) { // do recover
msg_scroll = true; // scroll message up
ml_recover(true);
if (curbuf->b_ml.ml_mfp == NULL) { // failed
getout(1);
}
do_modelines(0); // do modelines
} else {
int done = 0;
// Open a buffer for windows that don't have one yet.
// Commands in the vimrc might have loaded a file or split the window.
// Watch out for autocommands that delete a window.
//
// Don't execute Win/Buf Enter/Leave autocommands here
autocmd_no_enter++;
autocmd_no_leave++;
int dorewind = true;
while (done++ < 1000) {
if (dorewind) {
if (parmp->window_layout == WIN_TABS) {
goto_tabpage(1);
} else {
curwin = firstwin;
}
} else if (parmp->window_layout == WIN_TABS) {
if (curtab->tp_next == NULL) {
break;
}
goto_tabpage(0);
} else {
if (curwin->w_next == NULL) {
break;
}
curwin = curwin->w_next;
}
dorewind = false;
curbuf = curwin->w_buffer;
if (curbuf->b_ml.ml_mfp == NULL) {
// Set 'foldlevel' to 'foldlevelstart' if it's not negative..
if (p_fdls >= 0) {
curwin->w_p_fdl = p_fdls;
}
// When getting the ATTENTION prompt here, use a dialog.
swap_exists_action = SEA_DIALOG;
set_buflisted(true);
// create memfile, read file
(void)open_buffer(false, NULL, 0);
if (swap_exists_action == SEA_QUIT) {
if (got_int || only_one_window()) {
// abort selected or quit and only one window
did_emsg = false; // avoid hit-enter prompt
getout(1);
}
// We can't close the window, it would disturb what
// happens next. Clear the file name and set the arg
// index to -1 to delete it later.
setfname(curbuf, NULL, NULL, false);
curwin->w_arg_idx = -1;
swap_exists_action = SEA_NONE;
} else {
handle_swap_exists(NULL);
}
dorewind = true; // start again
}
os_breakcheck();
if (got_int) {
(void)vgetc(); // only break the file loading, not the rest
break;
}
}
if (parmp->window_layout == WIN_TABS) {
goto_tabpage(1);
} else {
curwin = firstwin;
}
curbuf = curwin->w_buffer;
autocmd_no_enter--;
autocmd_no_leave--;
}
}
/// If opened more than one window, start editing files in the other
/// windows. make_windows() has already opened the windows.
static void edit_buffers(mparm_T *parmp, char *cwd)
{
int arg_idx; // index in argument list
int i;
bool advance = true;
win_T *win;
char *p_shm_save = NULL;
// Don't execute Win/Buf Enter/Leave autocommands here
autocmd_no_enter++;
autocmd_no_leave++;
// When w_arg_idx is -1 remove the window (see create_windows()).
if (curwin->w_arg_idx == -1) {
win_close(curwin, true, false);
advance = false;
}
arg_idx = 1;
for (i = 1; i < parmp->window_count; i++) {
if (cwd != NULL) {
os_chdir(cwd);
}
// When w_arg_idx is -1 remove the window (see create_windows()).
if (curwin->w_arg_idx == -1) {
arg_idx++;
win_close(curwin, true, false);
advance = false;
continue;
}
if (advance) {
if (parmp->window_layout == WIN_TABS) {
if (curtab->tp_next == NULL) { // just checking
break;
}
goto_tabpage(0);
// Temporarily reset 'shm' option to not print fileinfo when
// loading the other buffers. This would overwrite the already
// existing fileinfo for the first tab.
if (i == 1) {
char buf[100];
p_shm_save = xstrdup(p_shm);
snprintf(buf, sizeof(buf), "F%s", p_shm);
set_option_value_give_err("shm", 0L, buf, 0);
}
} else {
if (curwin->w_next == NULL) { // just checking
break;
}
win_enter(curwin->w_next, false);
}
}
advance = true;
// Only open the file if there is no file in this window yet (that can
// happen when vimrc contains ":sall").
if (curbuf == firstwin->w_buffer || curbuf->b_ffname == NULL) {
curwin->w_arg_idx = arg_idx;
// Edit file from arg list, if there is one. When "Quit" selected
// at the ATTENTION prompt close the window.
swap_exists_did_quit = false;
(void)do_ecmd(0, arg_idx < GARGCOUNT
? alist_name(&GARGLIST[arg_idx])
: NULL, NULL, NULL, ECMD_LASTL, ECMD_HIDE, curwin);
if (swap_exists_did_quit) {
// abort or quit selected
if (got_int || only_one_window()) {
// abort selected and only one window
did_emsg = false; // avoid hit-enter prompt
getout(1);
}
win_close(curwin, true, false);
advance = false;
}
if (arg_idx == GARGCOUNT - 1) {
arg_had_last = true;
}
arg_idx++;
}
os_breakcheck();
if (got_int) {
(void)vgetc(); // only break the file loading, not the rest
break;
}
}
if (p_shm_save != NULL) {
set_option_value_give_err("shm", 0L, p_shm_save, 0);
xfree(p_shm_save);
}
if (parmp->window_layout == WIN_TABS) {
goto_tabpage(1);
}
autocmd_no_enter--;
// make the first window the current window
win = firstwin;
// Avoid making a preview window the current window.
while (win->w_p_pvw) {
win = win->w_next;
if (win == NULL) {
win = firstwin;
break;
}
}
win_enter(win, false);
autocmd_no_leave--;
TIME_MSG("editing files in windows");
if (parmp->window_count > 1 && parmp->window_layout != WIN_TABS) {
win_equal(curwin, false, 'b'); // adjust heights
}
}
// Execute the commands from --cmd arguments "cmds[cnt]".
static void exe_pre_commands(mparm_T *parmp)
{
char **cmds = parmp->pre_commands;
int cnt = parmp->n_pre_commands;
int i;
if (cnt <= 0) {
return;
}
curwin->w_cursor.lnum = 0; // just in case..
estack_push(ETYPE_ARGS, _("pre-vimrc command line"), 0);
current_sctx.sc_sid = SID_CMDARG;
for (i = 0; i < cnt; i++) {
do_cmdline_cmd(cmds[i]);
}
estack_pop();
current_sctx.sc_sid = 0;
TIME_MSG("--cmd commands");
}
// Execute "+", "-c" and "-S" arguments.
static void exe_commands(mparm_T *parmp)
{
int i;
// We start commands on line 0, make "vim +/pat file" match a
// pattern on line 1. But don't move the cursor when an autocommand
// with g`" was used.
msg_scroll = true;
if (parmp->tagname == NULL && curwin->w_cursor.lnum <= 1) {
curwin->w_cursor.lnum = 0;
}
estack_push(ETYPE_ARGS, "command line", 0);
current_sctx.sc_sid = SID_CARG;
current_sctx.sc_seq = 0;
for (i = 0; i < parmp->n_commands; i++) {
do_cmdline_cmd(parmp->commands[i]);
if (parmp->cmds_tofree[i]) {
xfree(parmp->commands[i]);
}
}
estack_pop();
current_sctx.sc_sid = 0;
if (curwin->w_cursor.lnum == 0) {
curwin->w_cursor.lnum = 1;
}
if (!exmode_active) {
msg_scroll = false;
}
// When started with "-q errorfile" jump to first error again.
if (parmp->edit_type == EDIT_QF) {
qf_jump(NULL, 0, 0, false);
}
TIME_MSG("executing command arguments");
}
/// Source system-wide vimrc if built with one defined
///
/// Does one of the following things, stops after whichever succeeds:
///
/// 1. Source system vimrc file from $XDG_CONFIG_DIRS/nvim/sysinit.vim
/// 2. Source system vimrc file from $VIM
static void do_system_initialization(void)
{
char *const config_dirs = stdpaths_get_xdg_var(kXDGConfigDirs);
if (config_dirs != NULL) {
const void *iter = NULL;
const char path_tail[] = {
'n', 'v', 'i', 'm', PATHSEP,
's', 'y', 's', 'i', 'n', 'i', 't', '.', 'v', 'i', 'm', NUL
};
do {
const char *dir;
size_t dir_len;
iter = vim_env_iter(':', config_dirs, iter, &dir, &dir_len);
if (dir == NULL || dir_len == 0) {
break;
}
char *vimrc = xmalloc(dir_len + sizeof(path_tail) + 1);
memcpy(vimrc, dir, dir_len);
if (vimrc[dir_len - 1] != PATHSEP) {
vimrc[dir_len] = PATHSEP;
dir_len += 1;
}
memcpy(vimrc + dir_len, path_tail, sizeof(path_tail));
if (do_source(vimrc, false, DOSO_NONE, NULL) != FAIL) {
xfree(vimrc);
xfree(config_dirs);
return;
}
xfree(vimrc);
} while (iter != NULL);
xfree(config_dirs);
}
#ifdef SYS_VIMRC_FILE
// Get system wide defaults, if the file name is defined.
(void)do_source(SYS_VIMRC_FILE, false, DOSO_NONE, NULL);
#endif
}
/// Source vimrc or do other user initialization
///
/// Does one of the following things, stops after whichever succeeds:
///
/// 1. Execution of VIMINIT environment variable.
/// 2. Sourcing user vimrc file ($XDG_CONFIG_HOME/nvim/init.vim).
/// 3. Sourcing other vimrc files ($XDG_CONFIG_DIRS[1]/nvim/init.vim, …).
/// 4. Execution of EXINIT environment variable.
///
/// @return True if it is needed to attempt to source exrc file according to
/// 'exrc' option definition.
static bool do_user_initialization(void)
FUNC_ATTR_WARN_UNUSED_RESULT
{
bool do_exrc = p_exrc;
if (execute_env("VIMINIT") == OK) {
do_exrc = p_exrc;
return do_exrc;
}
char *init_lua_path = stdpaths_user_conf_subpath("init.lua");
char *user_vimrc = stdpaths_user_conf_subpath("init.vim");
// init.lua
if (os_path_exists(init_lua_path)
&& do_source(init_lua_path, true, DOSO_VIMRC, NULL)) {
if (os_path_exists(user_vimrc)) {
semsg(_("E5422: Conflicting configs: \"%s\" \"%s\""), init_lua_path,
user_vimrc);
}
xfree(user_vimrc);
xfree(init_lua_path);
do_exrc = p_exrc;
return do_exrc;
}
xfree(init_lua_path);
// init.vim
if (do_source(user_vimrc, true, DOSO_VIMRC, NULL) != FAIL) {
do_exrc = p_exrc;
if (do_exrc) {
do_exrc = (path_full_compare(VIMRC_FILE, user_vimrc, false, true) != kEqualFiles);
}
xfree(user_vimrc);
return do_exrc;
}
xfree(user_vimrc);
char *const config_dirs = stdpaths_get_xdg_var(kXDGConfigDirs);
if (config_dirs != NULL) {
const void *iter = NULL;
do {
const char *dir;
size_t dir_len;
iter = vim_env_iter(':', config_dirs, iter, &dir, &dir_len);
if (dir == NULL || dir_len == 0) {
break;
}
const char path_tail[] = { 'n', 'v', 'i', 'm', PATHSEP,
'i', 'n', 'i', 't', '.', 'v', 'i', 'm', NUL };
char *vimrc = xmalloc(dir_len + sizeof(path_tail) + 1);
memmove(vimrc, dir, dir_len);
vimrc[dir_len] = PATHSEP;
memmove(vimrc + dir_len + 1, path_tail, sizeof(path_tail));
if (do_source(vimrc, true, DOSO_VIMRC, NULL) != FAIL) {
do_exrc = p_exrc;
if (do_exrc) {
do_exrc = (path_full_compare(VIMRC_FILE, vimrc, false, true) != kEqualFiles);
}
xfree(vimrc);
xfree(config_dirs);
return do_exrc;
}
xfree(vimrc);
} while (iter != NULL);
xfree(config_dirs);
}
if (execute_env("EXINIT") == OK) {
do_exrc = p_exrc;
return do_exrc;
}
return do_exrc;
}
// Read initialization commands from ".nvim.lua", ".nvimrc", or ".exrc" in
// current directory. This is only done if the 'exrc' option is set.
// Only do this if VIMRC_FILE is not the same as vimrc file sourced in
// do_user_initialization.
static void do_exrc_initialization(void)
{
char *str;
if (os_path_exists(VIMRC_LUA_FILE)) {
str = nlua_read_secure(VIMRC_LUA_FILE);
if (str != NULL) {
Error err = ERROR_INIT;
nlua_exec(cstr_as_string(str), (Array)ARRAY_DICT_INIT, &err);
xfree(str);
if (ERROR_SET(&err)) {
semsg("Error detected while processing %s:", VIMRC_LUA_FILE);
semsg_multiline(err.msg);
api_clear_error(&err);
}
}
} else if (os_path_exists(VIMRC_FILE)) {
str = nlua_read_secure(VIMRC_FILE);
if (str != NULL) {
do_source_str(str, VIMRC_FILE);
xfree(str);
}
} else if (os_path_exists(EXRC_FILE)) {
str = nlua_read_secure(EXRC_FILE);
if (str != NULL) {
do_source_str(str, EXRC_FILE);
xfree(str);
}
}
}
/// Source startup scripts
static void source_startup_scripts(const mparm_T *const parmp)
FUNC_ATTR_NONNULL_ALL
{
// If -u given, use only the initializations from that file and nothing else.
if (parmp->use_vimrc != NULL) {
if (strequal(parmp->use_vimrc, "NONE")
|| strequal(parmp->use_vimrc, "NORC")) {
// Do nothing.
} else {
if (do_source(parmp->use_vimrc, false, DOSO_NONE, NULL) != OK) {
semsg(_("E282: Cannot read from \"%s\""), parmp->use_vimrc);
}
}
} else if (!silent_mode) {
do_system_initialization();
if (do_user_initialization()) {
do_exrc_initialization();
}
}
TIME_MSG("sourcing vimrc file(s)");
}
/// Get an environment variable, and execute it as Ex commands.
///
/// @param env environment variable to execute
///
/// @return FAIL if the environment variable was not executed,
/// OK otherwise.
static int execute_env(char *env)
FUNC_ATTR_NONNULL_ALL
{
const char *initstr = os_getenv(env);
if (initstr == NULL) {
return FAIL;
}
estack_push(ETYPE_ENV, env, 0);
const sctx_T save_current_sctx = current_sctx;
current_sctx.sc_sid = SID_ENV;
current_sctx.sc_seq = 0;
current_sctx.sc_lnum = 0;
do_cmdline_cmd(initstr);
estack_pop();
current_sctx = save_current_sctx;
return OK;
}
/// Prints the following then exits:
/// - An error message `errstr`
/// - A string `str` if not null
///
/// @param errstr string containing an error message
/// @param str string to append to the primary error message, or NULL
static void mainerr(const char *errstr, const char *str)
FUNC_ATTR_NORETURN
{
print_mainerr(errstr, str);
os_exit(1);
}
static void print_mainerr(const char *errstr, const char *str)
{
char *prgname = path_tail(argv0);
signal_stop(); // kill us with CTRL-C here, if you like
os_errmsg(prgname);
os_errmsg(": ");
os_errmsg(_(errstr));
if (str != NULL) {
os_errmsg(": \"");
os_errmsg(str);
os_errmsg("\"");
}
os_errmsg(_("\nMore info with \""));
os_errmsg(prgname);
os_errmsg(" -h\"\n");
}
/// Prints version information for "nvim -v" or "nvim --version".
static void version(void)
{
// TODO(bfred): not like this?
nlua_init(NULL, 0, -1);
info_message = true; // use os_msg(), not os_errmsg()
list_version();
msg_putchar('\n');
msg_didout = false;
}
/// Prints help message for "nvim -h" or "nvim --help".
static void usage(void)
{
signal_stop(); // kill us with CTRL-C here, if you like
os_msg(_("Usage:\n"));
os_msg(_(" nvim [options] [file ...] Edit file(s)\n"));
os_msg(_(" nvim [options] -t <tag> Edit file where tag is defined\n"));
os_msg(_(" nvim [options] -q [errorfile] Edit file with first error\n"));
os_msg(_("\nOptions:\n"));
os_msg(_(" -- Only file names after this\n"));
os_msg(_(" + Start at end of file\n"));
os_msg(_(" --cmd <cmd> Execute <cmd> before any config\n"));
os_msg(_(" +<cmd>, -c <cmd> Execute <cmd> after config and first file\n"));
os_msg(_(" -l <script> [args...] Execute Lua <script> (with optional args)\n"));
os_msg("\n");
os_msg(_(" -b Binary mode\n"));
os_msg(_(" -d Diff mode\n"));
os_msg(_(" -e, -E Ex mode\n"));
os_msg(_(" -es, -Es Silent (batch) mode\n"));
os_msg(_(" -h, --help Print this help message\n"));
os_msg(_(" -i <shada> Use this shada file\n"));
os_msg(_(" -m Modifications (writing files) not allowed\n"));
os_msg(_(" -M Modifications in text not allowed\n"));
os_msg(_(" -n No swap file, use memory only\n"));
os_msg(_(" -o[N] Open N windows (default: one per file)\n"));
os_msg(_(" -O[N] Open N vertical windows (default: one per file)\n"));
os_msg(_(" -p[N] Open N tab pages (default: one per file)\n"));
os_msg(_(" -r, -L List swap files\n"));
os_msg(_(" -r <file> Recover edit state for this file\n"));
os_msg(_(" -R Read-only mode\n"));
os_msg(_(" -S <session> Source <session> after loading the first file\n"));
os_msg(_(" -s <scriptin> Read Normal mode commands from <scriptin>\n"));
os_msg(_(" -u <config> Use this config file\n"));
os_msg(_(" -v, --version Print version information\n"));
os_msg(_(" -V[N][file] Verbose [level][file]\n"));
os_msg("\n");
os_msg(_(" --api-info Write msgpack-encoded API metadata to stdout\n"));
os_msg(_(" --clean \"Factory defaults\" (skip user config and plugins, shada)\n"));
os_msg(_(" --embed Use stdin/stdout as a msgpack-rpc channel\n"));
os_msg(_(" --headless Don't start a user interface\n"));
os_msg(_(" --listen <address> Serve RPC API from this address\n"));
os_msg(_(" --noplugin Don't load plugins\n"));
os_msg(_(" --remote[-subcommand] Execute commands remotely on a server\n"));
os_msg(_(" --server <address> Specify RPC server to send commands to\n"));
os_msg(_(" --startuptime <file> Write startup timing messages to <file>\n"));
os_msg(_("\nSee \":help startup-options\" for all options.\n"));
}
// Check the result of the ATTENTION dialog:
// When "Quit" selected, exit Vim.
// When "Recover" selected, recover the file.
static void check_swap_exists_action(void)
{
if (swap_exists_action == SEA_QUIT) {
getout(1);
}
handle_swap_exists(NULL);
}
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