mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-23 20:54:04 +08:00
402 lines
7.1 KiB
C
402 lines
7.1 KiB
C
/*
|
|
Copyright (C) 2005-2006 Axel Liljencrantz
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License version 2 as
|
|
published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
|
|
/** \file main.c
|
|
The main loop of <tt>fish</tt>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <wchar.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <termios.h>
|
|
#include <fcntl.h>
|
|
|
|
#ifdef HAVE_GETOPT_H
|
|
#include <getopt.h>
|
|
#endif
|
|
|
|
#include <locale.h>
|
|
#include <signal.h>
|
|
|
|
#include "fallback.h"
|
|
#include "util.h"
|
|
|
|
#include "common.h"
|
|
#include "reader.h"
|
|
#include "builtin.h"
|
|
#include "function.h"
|
|
#include "complete.h"
|
|
#include "wutil.h"
|
|
#include "env.h"
|
|
#include "sanity.h"
|
|
#include "proc.h"
|
|
#include "parser.h"
|
|
#include "expand.h"
|
|
#include "intern.h"
|
|
#include "exec.h"
|
|
#include "event.h"
|
|
#include "output.h"
|
|
#include "halloc.h"
|
|
#include "halloc_util.h"
|
|
#include "history.h"
|
|
#include "path.h"
|
|
|
|
/**
|
|
The string describing the single-character options accepted by the main fish binary
|
|
*/
|
|
#define GETOPT_STRING "hilnvc:p:d:"
|
|
|
|
/**
|
|
Parse init files
|
|
*/
|
|
static int read_init()
|
|
{
|
|
wchar_t cwd[4096];
|
|
wchar_t *config_dir;
|
|
wchar_t *config_dir_escaped;
|
|
void *context;
|
|
string_buffer_t *eval_buff;
|
|
|
|
if( !wgetcwd( cwd, 4096 ) )
|
|
{
|
|
wperror( L"wgetcwd" );
|
|
return 0;
|
|
}
|
|
|
|
eval( L"builtin cd " DATADIR L"/fish 2>/dev/null; and builtin . config.fish 2>/dev/null", 0, TOP );
|
|
eval( L"builtin cd " SYSCONFDIR L"/fish 2>/dev/null; and builtin . config.fish 2>/dev/null", 0, TOP );
|
|
|
|
/*
|
|
We need to get the configuration directory before we can source the user configuration file
|
|
*/
|
|
context = halloc( 0, 0 );
|
|
eval_buff = sb_halloc( context );
|
|
config_dir = path_get_config( context );
|
|
config_dir_escaped = escape( config_dir, 1 );
|
|
sb_printf( eval_buff, L"builtin cd %ls 2>/dev/null; and builtin . config.fish 2>/dev/null", config_dir_escaped );
|
|
eval( (wchar_t *)eval_buff->buff, 0, TOP );
|
|
|
|
halloc_free( context );
|
|
free( config_dir_escaped );
|
|
|
|
if( wchdir( cwd ) == -1 )
|
|
{
|
|
/*
|
|
If we can't change back to previos directory, we go to
|
|
~. Should be a sane default behavior.
|
|
*/
|
|
eval( L"builtin cd", 0, TOP );
|
|
}
|
|
else
|
|
{
|
|
env_set( L"PWD", cwd, ENV_EXPORT );
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int fish_parse_opt( int argc, char **argv, char **cmd_ptr )
|
|
{
|
|
int my_optind;
|
|
int force_interactive=0;
|
|
|
|
|
|
while( 1 )
|
|
{
|
|
static struct option
|
|
long_options[] =
|
|
{
|
|
{
|
|
"command", required_argument, 0, 'c'
|
|
}
|
|
,
|
|
{
|
|
"debug-level", required_argument, 0, 'd'
|
|
}
|
|
,
|
|
{
|
|
"interactive", no_argument, 0, 'i'
|
|
}
|
|
,
|
|
{
|
|
"login", no_argument, 0, 'l'
|
|
}
|
|
,
|
|
{
|
|
"no-execute", no_argument, 0, 'n'
|
|
}
|
|
,
|
|
{
|
|
"profile", required_argument, 0, 'p'
|
|
}
|
|
,
|
|
{
|
|
"help", no_argument, 0, 'h'
|
|
}
|
|
,
|
|
{
|
|
"version", no_argument, 0, 'v'
|
|
}
|
|
,
|
|
{
|
|
0, 0, 0, 0
|
|
}
|
|
}
|
|
;
|
|
|
|
int opt_index = 0;
|
|
|
|
int opt = getopt_long( argc,
|
|
argv,
|
|
GETOPT_STRING,
|
|
long_options,
|
|
&opt_index );
|
|
|
|
if( opt == -1 )
|
|
break;
|
|
|
|
switch( opt )
|
|
{
|
|
case 0:
|
|
{
|
|
break;
|
|
}
|
|
|
|
case 'c':
|
|
{
|
|
*cmd_ptr = optarg;
|
|
is_interactive_session = 0;
|
|
break;
|
|
}
|
|
|
|
case 'd':
|
|
{
|
|
char *end;
|
|
int tmp;
|
|
|
|
errno = 0;
|
|
tmp = strtol(optarg, &end, 10);
|
|
|
|
if( tmp >= 0 && tmp <=10 && !*end && !errno )
|
|
{
|
|
debug_level=tmp;
|
|
}
|
|
else
|
|
{
|
|
debug( 0, _(L"Invalid value '%s' for debug level switch"), optarg );
|
|
exit(1);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'h':
|
|
{
|
|
*cmd_ptr = "__fish_print_help fish";
|
|
break;
|
|
}
|
|
|
|
case 'i':
|
|
{
|
|
force_interactive = 1;
|
|
break;
|
|
}
|
|
|
|
case 'l':
|
|
{
|
|
is_login=1;
|
|
break;
|
|
}
|
|
|
|
case 'n':
|
|
{
|
|
no_exec=1;
|
|
break;
|
|
}
|
|
|
|
case 'p':
|
|
{
|
|
profile = optarg;
|
|
break;
|
|
}
|
|
|
|
case 'v':
|
|
{
|
|
fwprintf( stderr,
|
|
_(L"%s, version %s\n"),
|
|
PACKAGE_NAME,
|
|
PACKAGE_VERSION );
|
|
exit( 0 );
|
|
}
|
|
|
|
case '?':
|
|
{
|
|
exit( 1 );
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
my_optind = optind;
|
|
|
|
is_login |= (strcmp( argv[0], "-fish") == 0);
|
|
|
|
is_interactive_session &= (*cmd_ptr == 0);
|
|
is_interactive_session &= (my_optind == argc);
|
|
is_interactive_session &= isatty(STDIN_FILENO);
|
|
is_interactive_session |= force_interactive;
|
|
|
|
return my_optind;
|
|
}
|
|
|
|
|
|
/**
|
|
Calls a bunch of init functions, parses the init files and then
|
|
parses commands from stdin or files, depending on arguments
|
|
*/
|
|
|
|
int main( int argc, char **argv )
|
|
{
|
|
int res=1;
|
|
char *cmd=0;
|
|
int my_optind=0;
|
|
|
|
halloc_util_init();
|
|
|
|
wsetlocale( LC_ALL, L"" );
|
|
is_interactive_session=1;
|
|
program_name=L"fish";
|
|
|
|
|
|
my_optind = fish_parse_opt( argc, argv, &cmd );
|
|
|
|
/*
|
|
No-exec is prohibited when in interactive mode
|
|
*/
|
|
if( is_interactive_session && no_exec)
|
|
{
|
|
debug( 1, _(L"Can not use the no-execute mode when running an interactive session") );
|
|
no_exec = 0;
|
|
}
|
|
|
|
|
|
proc_init();
|
|
event_init();
|
|
wutil_init();
|
|
parser_init();
|
|
builtin_init();
|
|
function_init();
|
|
env_init();
|
|
reader_init();
|
|
history_init();
|
|
|
|
if( read_init() )
|
|
{
|
|
if( cmd != 0 )
|
|
{
|
|
wchar_t *cmd_wcs = str2wcs( cmd );
|
|
res = eval( cmd_wcs, 0, TOP );
|
|
free(cmd_wcs);
|
|
reader_exit(0, 0);
|
|
}
|
|
else
|
|
{
|
|
if( my_optind == argc )
|
|
{
|
|
res = reader_read( 0 );
|
|
}
|
|
else
|
|
{
|
|
char **ptr;
|
|
char *file = *(argv+1);
|
|
int i;
|
|
string_buffer_t sb;
|
|
int fd;
|
|
wchar_t *rel_filename, *abs_filename;
|
|
|
|
if( ( fd = open(file, O_RDONLY) ) == -1 )
|
|
{
|
|
wperror( L"open" );
|
|
return 1;
|
|
}
|
|
|
|
if( *(argv+2))
|
|
{
|
|
sb_init( &sb );
|
|
|
|
for( i=1,ptr = argv+2; *ptr; i++, ptr++ )
|
|
{
|
|
if( i != 1 )
|
|
sb_append( &sb, ARRAY_SEP_STR );
|
|
wchar_t *val = str2wcs( *ptr );
|
|
sb_append( &sb, val );
|
|
free( val );
|
|
}
|
|
|
|
env_set( L"argv", (wchar_t *)sb.buff, 0 );
|
|
sb_destroy( &sb );
|
|
}
|
|
|
|
rel_filename = str2wcs( file );
|
|
abs_filename = wrealpath( rel_filename, 0 );
|
|
if( !abs_filename )
|
|
abs_filename = wcsdup(rel_filename);
|
|
reader_push_current_filename( intern( abs_filename ) );
|
|
free( rel_filename );
|
|
free( abs_filename );
|
|
|
|
res = reader_read( fd );
|
|
|
|
if( res )
|
|
{
|
|
debug( 1,
|
|
_(L"Error while reading file %ls\n"),
|
|
reader_current_filename()?reader_current_filename(): _(L"Standard input") );
|
|
}
|
|
reader_pop_current_filename();
|
|
}
|
|
}
|
|
}
|
|
|
|
proc_fire_event( L"PROCESS_EXIT", EVENT_EXIT, getpid(), res );
|
|
|
|
history_destroy();
|
|
proc_destroy();
|
|
builtin_destroy();
|
|
function_destroy();
|
|
reader_destroy();
|
|
parser_destroy();
|
|
wutil_destroy();
|
|
event_destroy();
|
|
|
|
halloc_util_destroy();
|
|
|
|
env_destroy();
|
|
|
|
intern_free_all();
|
|
|
|
return res?STATUS_UNKNOWN_COMMAND:proc_get_last_status();
|
|
}
|