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src: add getopt option parser

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Options have been moved into the NodeOptions class.
A new global, node_options now exists and is used
to access the options after the command line arguments
have been parsed.

PR-URL: https://github.com/nodejs/io.js/pull/1804
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit is contained in:
Evan Lucas 2015-05-19 13:12:26 -05:00
parent d29034b34b
commit c0e7bf2d8c
12 changed files with 1228 additions and 276 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
deps/getopt/getopt.gyp vendored Normal file
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{
'targets': [
{
'target_name': 'getopt',
'type': 'static_library',
'sources': [
'getopt.h',
'getopt_long.c'
],
'defines': [
'REPLACE_GETOPT'
]
}
]
}

100
deps/getopt/getopt.h vendored Normal file
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/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Dieter Baron and Thomas Klausner.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _GETOPT_H_
#define _GETOPT_H_
#ifndef __BEGIN_DECLS
#ifdef __cplusplus
#define __BEGIN_DECLS extern "C" {
#define __END_DECLS }
#else
#define __BEGIN_DECLS
#define __END_DECLS
#endif /* __cplusplus */
#endif /* __BEGIN_DECLS */
#ifdef WIN32
#ifdef _MSC_VER
/* ignore MSVC++ warnings that are annoying and hard to remove:
4702 unreachable code
(there is an unreachable assert(0) in case somehow it is reached)
*/
#pragma warning( disable : 4702 )
#endif
#endif /* WIN32 */
/*
* GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
* getopt() is declared here too for GNU programs.
*/
#define no_argument 0
#define required_argument 1
#define optional_argument 2
struct option {
/* name of long option */
const char *name;
/*
* one of no_argument, required_argument, and optional_argument:
* whether option takes an argument
*/
int has_arg;
/* if not NULL, set *flag to val when option found */
int *flag;
/* if flag not NULL, value to set *flag to; else return value */
int val;
/* add description for usage */
const char *desc;
};
__BEGIN_DECLS
extern int getopt_long(int, char * const *, const char *,
const struct option *, int *);
extern int getopt_long_only(int, char * const *, const char *,
const struct option *, int *);
#ifndef _GETOPT_DECLARED
#define _GETOPT_DECLARED
int getopt(int, char * const [], const char *);
extern char *optarg; /* getopt(3) external variables */
extern int optind, opterr, optopt;
#endif
#ifndef _OPTRESET_DECLARED
#define _OPTRESET_DECLARED
extern int optreset; /* getopt(3) external variable */
#endif
__END_DECLS
#endif /* !_GETOPT_H_ */

634
deps/getopt/getopt_long.c vendored Normal file
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/* $OpenBSD: getopt_long.c,v 1.26 2013/06/08 22:47:56 millert Exp $ */
/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
/*
* Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Dieter Baron and Thomas Klausner.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#if 0
#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$OpenBSD: getopt_long.c,v 1.16 2004/02/04 18:17:25 millert Exp $";
#endif /* LIBC_SCCS and not lint */
#endif
#include <stdio.h>
#include <errno.h>
#include "getopt.h"
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
#include <stdarg.h>
#if !defined(GETOPT_API)
#define GETOPT_API __declspec(dllimport)
#endif
#ifdef _MSC_VER
/* ignore MSVC++ warnings that are annoying and hard to remove:
4702 unreachable code
(there is an unreachable assert(0) in case somehow it is reached)
*/
#pragma warning( disable : 4702 )
#endif
GETOPT_API extern char opterrmsg[128];
char opterrmsg[128]; /* last error message is stored here */
static void warnx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (fmt != NULL)
_vsnprintf(opterrmsg, 128, fmt, ap);
else
opterrmsg[0]='\0';
va_end(ap);
fprintf(stderr, opterrmsg);
fprintf(stderr, "\n");
}
#else /* WIN32 */
#include <err.h>
#endif
#define GNU_COMPATIBLE /* Be more compatible, configure's use us! */
#if 0 /* we prefer to keep our getopt(3) */
#define REPLACE_GETOPT /* use this getopt as the system getopt(3) */
#endif
#ifdef REPLACE_GETOPT
int opterr = 1; /* if error message should be printed */
int optind = 1; /* index into parent argv vector */
int optopt = '?'; /* character checked for validity */
int optreset; /* reset getopt */
char *optarg; /* argument associated with option */
#endif
#define PRINT_ERROR ((opterr) && (*options != ':'))
#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */
#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */
#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */
/* return values */
#define BADCH (int)'?'
#define BADARG ((*options == ':') ? (int)':' : (int)'?')
#define INORDER (int)1
#define EMSG ""
#ifdef GNU_COMPATIBLE
#define NO_PREFIX (-1)
#define D_PREFIX 0
#define DD_PREFIX 1
#define W_PREFIX 2
#endif
static int getopt_internal(int, char * const *, const char *,
const struct option *, int *, int);
static int parse_long_options(char * const *, const char *,
const struct option *, int *, int, int);
static int gcd(int, int);
static void permute_args(int, int, int, char * const *);
static char *place = EMSG; /* option letter processing */
/* XXX: set optreset to 1 rather than these two */
static int nonopt_start = -1; /* first non option argument (for permute) */
static int nonopt_end = -1; /* first option after non options (for permute) */
/* Error messages */
static const char recargchar[] = "option requires an argument -- %c";
static const char illoptchar[] = "illegal option -- %c"; /* From P1003.2 */
#ifdef GNU_COMPATIBLE
static int dash_prefix = NO_PREFIX;
static const char gnuoptchar[] = "invalid option -- %c";
static const char recargstring[] = "option `%s%s' requires an argument";
static const char ambig[] = "option `%s%.*s' is ambiguous";
static const char noarg[] = "option `%s%.*s' doesn't allow an argument";
static const char illoptstring[] = "unrecognized option `%s%s'";
#else
static const char recargstring[] = "option requires an argument -- %s";
static const char ambig[] = "ambiguous option -- %.*s";
static const char noarg[] = "option doesn't take an argument -- %.*s";
static const char illoptstring[] = "unknown option -- %s";
#endif
/*
* Compute the greatest common divisor of a and b.
*/
static int
gcd(int a, int b)
{
int c;
c = a % b;
while (c != 0) {
a = b;
b = c;
c = a % b;
}
return (b);
}
/*
* Exchange the block from nonopt_start to nonopt_end with the block
* from nonopt_end to opt_end (keeping the same order of arguments
* in each block).
*/
static void
permute_args(int panonopt_start, int panonopt_end, int opt_end,
char * const *nargv)
{
int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
char *swap;
/*
* compute lengths of blocks and number and size of cycles
*/
nnonopts = panonopt_end - panonopt_start;
nopts = opt_end - panonopt_end;
ncycle = gcd(nnonopts, nopts);
cyclelen = (opt_end - panonopt_start) / ncycle;
for (i = 0; i < ncycle; i++) {
cstart = panonopt_end+i;
pos = cstart;
for (j = 0; j < cyclelen; j++) {
if (pos >= panonopt_end)
pos -= nnonopts;
else
pos += nopts;
swap = nargv[pos];
/* LINTED const cast */
((char **) nargv)[pos] = nargv[cstart];
/* LINTED const cast */
((char **)nargv)[cstart] = swap;
}
}
}
/*
* parse_long_options --
* Parse long options in argc/argv argument vector.
* Returns -1 if short_too is set and the option does not match long_options.
*/
static int
parse_long_options(char * const *nargv, const char *options,
const struct option *long_options, int *idx, int short_too, int flags)
{
char *current_argv, *has_equal;
#ifdef GNU_COMPATIBLE
char *current_dash;
#endif
size_t current_argv_len;
int i, match, exact_match, second_partial_match;
current_argv = place;
#ifdef GNU_COMPATIBLE
switch (dash_prefix) {
case D_PREFIX:
current_dash = "-";
break;
case DD_PREFIX:
current_dash = "--";
break;
case W_PREFIX:
current_dash = "-W ";
break;
default:
current_dash = "";
break;
}
#endif
match = -1;
exact_match = 0;
second_partial_match = 0;
optind++;
if ((has_equal = strchr(current_argv, '=')) != NULL) {
/* argument found (--option=arg) */
current_argv_len = has_equal - current_argv;
has_equal++;
} else
current_argv_len = strlen(current_argv);
for (i = 0; long_options[i].name; i++) {
/* find matching long option */
if (strncmp(current_argv, long_options[i].name,
current_argv_len))
continue;
if (strlen(long_options[i].name) == current_argv_len) {
/* exact match */
match = i;
exact_match = 1;
break;
}
/*
* If this is a known short option, don't allow
* a partial match of a single character.
*/
if (short_too && current_argv_len == 1)
continue;
if (match == -1) /* first partial match */
match = i;
else if ((flags & FLAG_LONGONLY) ||
long_options[i].has_arg !=
long_options[match].has_arg ||
long_options[i].flag != long_options[match].flag ||
long_options[i].val != long_options[match].val)
second_partial_match = 1;
}
if (!exact_match && second_partial_match) {
/* ambiguous abbreviation */
if (PRINT_ERROR)
warnx(ambig,
#ifdef GNU_COMPATIBLE
current_dash,
#endif
(int)current_argv_len,
current_argv);
optopt = 0;
return (BADCH);
}
if (match != -1) { /* option found */
if (long_options[match].has_arg == no_argument
&& has_equal) {
if (PRINT_ERROR)
warnx(noarg,
#ifdef GNU_COMPATIBLE
current_dash,
#endif
(int)current_argv_len,
current_argv);
/*
* XXX: GNU sets optopt to val regardless of flag
*/
if (long_options[match].flag == NULL)
optopt = long_options[match].val;
else
optopt = 0;
#ifdef GNU_COMPATIBLE
return (BADCH);
#else
return (BADARG);
#endif
}
if (long_options[match].has_arg == required_argument ||
long_options[match].has_arg == optional_argument) {
if (has_equal)
optarg = has_equal;
else if (long_options[match].has_arg ==
required_argument) {
/*
* optional argument doesn't use next nargv
*/
optarg = nargv[optind++];
}
}
if ((long_options[match].has_arg == required_argument)
&& (optarg == NULL)) {
/*
* Missing argument; leading ':' indicates no error
* should be generated.
*/
if (PRINT_ERROR)
warnx(recargstring,
#ifdef GNU_COMPATIBLE
current_dash,
#endif
current_argv);
/*
* XXX: GNU sets optopt to val regardless of flag
*/
if (long_options[match].flag == NULL)
optopt = long_options[match].val;
else
optopt = 0;
--optind;
return (BADARG);
}
} else { /* unknown option */
if (short_too) {
--optind;
return (-1);
}
if (PRINT_ERROR)
warnx(illoptstring,
#ifdef GNU_COMPATIBLE
current_dash,
#endif
current_argv);
optopt = 0;
return (BADCH);
}
if (idx)
*idx = match;
if (long_options[match].flag) {
*long_options[match].flag = long_options[match].val;
return (0);
} else
return (long_options[match].val);
}
/*
* getopt_internal --
* Parse argc/argv argument vector. Called by user level routines.
*/
static int
getopt_internal(int nargc, char * const *nargv, const char *options,
const struct option *long_options, int *idx, int flags)
{
char *oli; /* option letter list index */
int optchar, short_too;
if (options == NULL)
return (-1);
/*
* XXX Some GNU programs (like cvs) set optind to 0 instead of
* XXX using optreset. Work around this braindamage.
*/
if (optind == 0)
optind = optreset = 1;
if (*options == '-')
flags |= FLAG_ALLARGS;
if (*options == '+' || *options == '-')
options++;
optarg = NULL;
if (optreset)
nonopt_start = nonopt_end = -1;
start:
if (optreset || !*place) { /* update scanning pointer */
optreset = 0;
if (optind >= nargc) { /* end of argument vector */
place = EMSG;
if (nonopt_end != -1) {
/* do permutation, if we have to */
permute_args(nonopt_start, nonopt_end,
optind, nargv);
optind -= nonopt_end - nonopt_start;
}
else if (nonopt_start != -1) {
/*
* If we skipped non-options, set optind
* to the first of them.
*/
optind = nonopt_start;
}
nonopt_start = nonopt_end = -1;
return (-1);
}
if (*(place = nargv[optind]) != '-' ||
#ifdef GNU_COMPATIBLE
place[1] == '\0') {
#else
(place[1] == '\0' && strchr(options, '-') == NULL)) {
#endif
place = EMSG; /* found non-option */
if (flags & FLAG_ALLARGS) {
/*
* GNU extension:
* return non-option as argument to option 1
*/
optarg = nargv[optind++];
return (INORDER);
}
if (!(flags & FLAG_PERMUTE)) {
/*
* If no permutation wanted, stop parsing
* at first non-option.
*/
return (-1);
}
/* do permutation */
if (nonopt_start == -1)
nonopt_start = optind;
else if (nonopt_end != -1) {
permute_args(nonopt_start, nonopt_end,
optind, nargv);
nonopt_start = optind -
(nonopt_end - nonopt_start);
nonopt_end = -1;
}
optind++;
/* process next argument */
goto start;
}
if (nonopt_start != -1 && nonopt_end == -1)
nonopt_end = optind;
/*
* If we have "-" do nothing, if "--" we are done.
*/
if (place[1] != '\0' && *++place == '-' && place[1] == '\0') {
optind++;
place = EMSG;
/*
* We found an option (--), so if we skipped
* non-options, we have to permute.
*/
if (nonopt_end != -1) {
permute_args(nonopt_start, nonopt_end,
optind, nargv);
optind -= nonopt_end - nonopt_start;
}
nonopt_start = nonopt_end = -1;
return (-1);
}
}
/*
* Check long options if:
* 1) we were passed some
* 2) the arg is not just "-"
* 3) either the arg starts with -- we are getopt_long_only()
*/
if (long_options != NULL && place != nargv[optind] &&
(*place == '-' || (flags & FLAG_LONGONLY))) {
short_too = 0;
#ifdef GNU_COMPATIBLE
dash_prefix = D_PREFIX;
#endif
if (*place == '-') {
place++; /* --foo long option */
#ifdef GNU_COMPATIBLE
dash_prefix = DD_PREFIX;
#endif
} else if (*place != ':' && strchr(options, *place) != NULL)
short_too = 1; /* could be short option too */
optchar = parse_long_options(nargv, options, long_options,
idx, short_too, flags);
if (optchar != -1) {
place = EMSG;
return (optchar);
}
}
if ((optchar = (int)*place++) == (int)':' ||
(optchar == (int)'-' && *place != '\0') ||
(oli = strchr(options, optchar)) == NULL) {
/*
* If the user specified "-" and '-' isn't listed in
* options, return -1 (non-option) as per POSIX.
* Otherwise, it is an unknown option character (or ':').
*/
if (optchar == (int)'-' && *place == '\0')
return (-1);
if (!*place)
++optind;
#ifdef GNU_COMPATIBLE
if (PRINT_ERROR)
warnx(gnuoptchar, optchar);
#else
if (PRINT_ERROR)
warnx(illoptchar, optchar);
#endif
optopt = optchar;
return (BADCH);
}
if (long_options != NULL && optchar == 'W' && oli[1] == ';') {
/* -W long-option */
if (*place) /* no space */
/* NOTHING */;
else if (++optind >= nargc) { /* no arg */
place = EMSG;
if (PRINT_ERROR)
warnx(recargchar, optchar);
optopt = optchar;
return (BADARG);
} else /* white space */
place = nargv[optind];
#ifdef GNU_COMPATIBLE
dash_prefix = W_PREFIX;
#endif
optchar = parse_long_options(nargv, options, long_options,
idx, 0, flags);
place = EMSG;
return (optchar);
}
if (*++oli != ':') { /* doesn't take argument */
if (!*place)
++optind;
} else { /* takes (optional) argument */
optarg = NULL;
if (*place) /* no white space */
optarg = place;
else if (oli[1] != ':') { /* arg not optional */
if (++optind >= nargc) { /* no arg */
place = EMSG;
if (PRINT_ERROR)
warnx(recargchar, optchar);
optopt = optchar;
return (BADARG);
} else
optarg = nargv[optind];
}
place = EMSG;
++optind;
}
/* dump back option letter */
return (optchar);
}
#ifdef REPLACE_GETOPT
/*
* getopt --
* Parse argc/argv argument vector.
*
* [eventually this will replace the BSD getopt]
*/
int
getopt(int nargc, char * const *nargv, const char *options)
{
/*
* We don't pass FLAG_PERMUTE to getopt_internal() since
* the BSD getopt(3) (unlike GNU) has never done this.
*
* Furthermore, since many privileged programs call getopt()
* before dropping privileges it makes sense to keep things
* as simple (and bug-free) as possible.
*/
return (getopt_internal(nargc, nargv, options, NULL, NULL, 0));
}
#endif /* REPLACE_GETOPT */
/*
* getopt_long --
* Parse argc/argv argument vector.
*/
int
getopt_long(int nargc, char * const *nargv, const char *options,
const struct option *long_options, int *idx)
{
return (getopt_internal(nargc, nargv, options, long_options, idx,
FLAG_PERMUTE));
}
/*
* getopt_long_only --
* Parse argc/argv argument vector.
*/
int
getopt_long_only(int nargc, char * const *nargv, const char *options,
const struct option *long_options, int *idx)
{
return (getopt_internal(nargc, nargv, options, long_options, idx,
FLAG_PERMUTE|FLAG_LONGONLY));
}

6
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@ -86,6 +86,7 @@
'dependencies': [ 'dependencies': [
'node_js2c#host', 'node_js2c#host',
'deps/cares/cares.gyp:cares', 'deps/cares/cares.gyp:cares',
'deps/getopt/getopt.gyp:getopt',
'deps/v8/tools/gyp/v8.gyp:v8', 'deps/v8/tools/gyp/v8.gyp:v8',
'deps/v8/tools/gyp/v8.gyp:v8_libplatform' 'deps/v8/tools/gyp/v8.gyp:v8_libplatform'
], ],
@ -94,6 +95,7 @@
'src', 'src',
'tools/msvs/genfiles', 'tools/msvs/genfiles',
'deps/uv/src/ares', 'deps/uv/src/ares',
'deps/getopt',
'<(SHARED_INTERMEDIATE_DIR)', # for node_natives.h '<(SHARED_INTERMEDIATE_DIR)', # for node_natives.h
'deps/v8' # include/v8_platform.h 'deps/v8' # include/v8_platform.h
], ],
@ -114,6 +116,7 @@
'src/node_http_parser.cc', 'src/node_http_parser.cc',
'src/node_javascript.cc', 'src/node_javascript.cc',
'src/node_main.cc', 'src/node_main.cc',
'src/node_options.cc',
'src/node_os.cc', 'src/node_os.cc',
'src/node_v8.cc', 'src/node_v8.cc',
'src/node_stat_watcher.cc', 'src/node_stat_watcher.cc',
@ -150,6 +153,7 @@
'src/node_http_parser.h', 'src/node_http_parser.h',
'src/node_internals.h', 'src/node_internals.h',
'src/node_javascript.h', 'src/node_javascript.h',
'src/node_options.h',
'src/node_root_certs.h', 'src/node_root_certs.h',
'src/node_version.h', 'src/node_version.h',
'src/node_watchdog.h', 'src/node_watchdog.h',
@ -630,7 +634,7 @@
{ {
'target_name': 'cctest', 'target_name': 'cctest',
'type': 'executable', 'type': 'executable',
'dependencies': [ 'dependencies': [
'deps/gtest/gtest.gyp:gtest', 'deps/gtest/gtest.gyp:gtest',
'deps/v8/tools/gyp/v8.gyp:v8', 'deps/v8/tools/gyp/v8.gyp:v8',
'deps/v8/tools/gyp/v8.gyp:v8_libplatform' 'deps/v8/tools/gyp/v8.gyp:v8_libplatform'

314
src/node.cc
View File

@ -4,6 +4,7 @@
#include "node_file.h" #include "node_file.h"
#include "node_http_parser.h" #include "node_http_parser.h"
#include "node_javascript.h" #include "node_javascript.h"
#include "node_options.h"
#include "node_version.h" #include "node_version.h"
#if defined HAVE_PERFCTR #if defined HAVE_PERFCTR
@ -111,18 +112,6 @@ using v8::V8;
using v8::Value; using v8::Value;
using v8::kExternalUint32Array; using v8::kExternalUint32Array;
static bool print_eval = false;
static bool force_repl = false;
static bool trace_deprecation = false;
static bool throw_deprecation = false;
static bool abort_on_uncaught_exception = false;
static bool trace_sync_io = false;
static const char* eval_string = nullptr;
static unsigned int preload_module_count = 0;
static const char** preload_modules = nullptr;
static bool use_debug_agent = false;
static bool debug_wait_connect = false;
static int debug_port = 5858;
static bool v8_is_profiling = false; static bool v8_is_profiling = false;
static bool node_is_initialized = false; static bool node_is_initialized = false;
static node_module* modpending; static node_module* modpending;
@ -130,10 +119,8 @@ static node_module* modlist_builtin;
static node_module* modlist_linked; static node_module* modlist_linked;
static node_module* modlist_addon; static node_module* modlist_addon;
#if defined(NODE_HAVE_I18N_SUPPORT) // cli options
// Path to ICU data (for i18n / Intl) NodeOptions node_options;
static const char* icu_data_dir = nullptr;
#endif
// used by C++ modules as well // used by C++ modules as well
bool no_deprecation = false; bool no_deprecation = false;
@ -1266,13 +1253,13 @@ enum encoding ParseEncoding(const char* encoding,
} else if (strcasecmp(encoding, "hex") == 0) { } else if (strcasecmp(encoding, "hex") == 0) {
return HEX; return HEX;
} else if (strcasecmp(encoding, "raw") == 0) { } else if (strcasecmp(encoding, "raw") == 0) {
if (!no_deprecation) { if (!node_options.no_deprecation) {
fprintf(stderr, "'raw' (array of integers) has been removed. " fprintf(stderr, "'raw' (array of integers) has been removed. "
"Use 'binary'.\n"); "Use 'binary'.\n");
} }
return BINARY; return BINARY;
} else if (strcasecmp(encoding, "raws") == 0) { } else if (strcasecmp(encoding, "raws") == 0) {
if (!no_deprecation) { if (!node_options.no_deprecation) {
fprintf(stderr, "'raws' encoding has been renamed to 'binary'. " fprintf(stderr, "'raws' encoding has been renamed to 'binary'. "
"Please update your code.\n"); "Please update your code.\n");
} }
@ -2548,14 +2535,14 @@ static Handle<Object> GetFeatures(Environment* env) {
static void DebugPortGetter(Local<String> property, static void DebugPortGetter(Local<String> property,
const PropertyCallbackInfo<Value>& info) { const PropertyCallbackInfo<Value>& info) {
info.GetReturnValue().Set(debug_port); info.GetReturnValue().Set(node_options.debug_port);
} }
static void DebugPortSetter(Local<String> property, static void DebugPortSetter(Local<String> property,
Local<Value> value, Local<Value> value,
const PropertyCallbackInfo<void>& info) { const PropertyCallbackInfo<void>& info) {
debug_port = value->Int32Value(); node_options.debug_port = value->Int32Value();
} }
@ -2789,56 +2776,58 @@ void SetupProcessObject(Environment* env,
env->as_external()); env->as_external());
// -e, --eval // -e, --eval
if (eval_string) { if (node_options.eval_string) {
READONLY_PROPERTY(process, READONLY_PROPERTY(process,
"_eval", "_eval",
String::NewFromUtf8(env->isolate(), eval_string)); String::NewFromUtf8(env->isolate(),
node_options.eval_string));
} }
// -p, --print // -p, --print
if (print_eval) { if (node_options.print_eval) {
READONLY_PROPERTY(process, "_print_eval", True(env->isolate())); READONLY_PROPERTY(process, "_print_eval", True(env->isolate()));
} }
// -i, --interactive // -i, --interactive
if (force_repl) { if (node_options.force_repl) {
READONLY_PROPERTY(process, "_forceRepl", True(env->isolate())); READONLY_PROPERTY(process, "_forceRepl", True(env->isolate()));
} }
if (preload_module_count) { if (node_options.preload_module_count) {
CHECK(preload_modules); CHECK(node_options.preload_modules);
Local<Array> array = Array::New(env->isolate()); Local<Array> array = Array::New(env->isolate());
for (unsigned int i = 0; i < preload_module_count; ++i) { for (unsigned int i = 0; i < node_options.preload_module_count; ++i) {
Local<String> module = String::NewFromUtf8(env->isolate(), Local<String> module = String::NewFromUtf8(
preload_modules[i]); env->isolate(),
node_options.preload_modules[i]);
array->Set(i, module); array->Set(i, module);
} }
READONLY_PROPERTY(process, READONLY_PROPERTY(process,
"_preload_modules", "_preload_modules",
array); array);
delete[] preload_modules; delete[] node_options.preload_modules;
preload_modules = nullptr; node_options.preload_modules = nullptr;
preload_module_count = 0; node_options.preload_module_count = 0;
} }
// --no-deprecation // --no-deprecation
if (no_deprecation) { if (node_options.no_deprecation) {
READONLY_PROPERTY(process, "noDeprecation", True(env->isolate())); READONLY_PROPERTY(process, "noDeprecation", True(env->isolate()));
} }
// --throw-deprecation // --throw-deprecation
if (throw_deprecation) { if (node_options.throw_deprecation) {
READONLY_PROPERTY(process, "throwDeprecation", True(env->isolate())); READONLY_PROPERTY(process, "throwDeprecation", True(env->isolate()));
} }
// --trace-deprecation // --trace-deprecation
if (trace_deprecation) { if (node_options.trace_deprecation) {
READONLY_PROPERTY(process, "traceDeprecation", True(env->isolate())); READONLY_PROPERTY(process, "traceDeprecation", True(env->isolate()));
} }
// --trace-sync-io // --trace-sync-io
if (trace_sync_io) { if (node_options.trace_sync_io) {
READONLY_PROPERTY(process, "traceSyncIO", True(env->isolate())); READONLY_PROPERTY(process, "traceSyncIO", True(env->isolate()));
// Don't env->set_trace_sync_io(true) because it will be enabled // Don't env->set_trace_sync_io(true) because it will be enabled
// after LoadEnvironment() has run. // after LoadEnvironment() has run.
@ -3020,235 +3009,6 @@ void LoadEnvironment(Environment* env) {
f->Call(global, 1, &arg); f->Call(global, 1, &arg);
} }
static void PrintHelp();
static bool ParseDebugOpt(const char* arg) {
const char* port = nullptr;
if (!strcmp(arg, "--debug")) {
use_debug_agent = true;
} else if (!strncmp(arg, "--debug=", sizeof("--debug=") - 1)) {
use_debug_agent = true;
port = arg + sizeof("--debug=") - 1;
} else if (!strcmp(arg, "--debug-brk")) {
use_debug_agent = true;
debug_wait_connect = true;
} else if (!strncmp(arg, "--debug-brk=", sizeof("--debug-brk=") - 1)) {
use_debug_agent = true;
debug_wait_connect = true;
port = arg + sizeof("--debug-brk=") - 1;
} else if (!strncmp(arg, "--debug-port=", sizeof("--debug-port=") - 1)) {
port = arg + sizeof("--debug-port=") - 1;
} else {
return false;
}
if (port != nullptr) {
debug_port = atoi(port);
if (debug_port < 1024 || debug_port > 65535) {
fprintf(stderr, "Debug port must be in range 1024 to 65535.\n");
PrintHelp();
exit(12);
}
}
return true;
}
static void PrintHelp() {
printf("Usage: iojs [options] [ -e script | script.js ] [arguments] \n"
" iojs debug script.js [arguments] \n"
"\n"
"Options:\n"
" -v, --version print io.js version\n"
" -e, --eval script evaluate script\n"
" -p, --print evaluate script and print result\n"
" -i, --interactive always enter the REPL even if stdin\n"
" does not appear to be a terminal\n"
" -r, --require module to preload (option can be repeated)\n"
" --no-deprecation silence deprecation warnings\n"
" --throw-deprecation throw an exception anytime a deprecated "
"function is used\n"
" --trace-deprecation show stack traces on deprecations\n"
" --trace-sync-io show stack trace when use of sync IO\n"
" is detected after the first tick\n"
" --v8-options print v8 command line options\n"
#if defined(NODE_HAVE_I18N_SUPPORT)
" --icu-data-dir=dir set ICU data load path to dir\n"
" (overrides NODE_ICU_DATA)\n"
#if !defined(NODE_HAVE_SMALL_ICU)
" Note: linked-in ICU data is\n"
" present.\n"
#endif
#endif
"\n"
"Environment variables:\n"
#ifdef _WIN32
"NODE_PATH ';'-separated list of directories\n"
#else
"NODE_PATH ':'-separated list of directories\n"
#endif
" prefixed to the module search path.\n"
"NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL\n"
#if defined(NODE_HAVE_I18N_SUPPORT)
"NODE_ICU_DATA Data path for ICU (Intl object) data\n"
#if !defined(NODE_HAVE_SMALL_ICU)
" (will extend linked-in data)\n"
#endif
#endif
"\n"
"Documentation can be found at https://iojs.org/\n");
}
// Parse command line arguments.
//
// argv is modified in place. exec_argv and v8_argv are out arguments that
// ParseArgs() allocates memory for and stores a pointer to the output
// vector in. The caller should free them with delete[].
//
// On exit:
//
// * argv contains the arguments with node and V8 options filtered out.
// * exec_argv contains both node and V8 options and nothing else.
// * v8_argv contains argv[0] plus any V8 options
static void ParseArgs(int* argc,
const char** argv,
int* exec_argc,
const char*** exec_argv,
int* v8_argc,
const char*** v8_argv) {
const unsigned int nargs = static_cast<unsigned int>(*argc);
const char** new_exec_argv = new const char*[nargs];
const char** new_v8_argv = new const char*[nargs];
const char** new_argv = new const char*[nargs];
const char** local_preload_modules = new const char*[nargs];
for (unsigned int i = 0; i < nargs; ++i) {
new_exec_argv[i] = nullptr;
new_v8_argv[i] = nullptr;
new_argv[i] = nullptr;
local_preload_modules[i] = nullptr;
}
// exec_argv starts with the first option, the other two start with argv[0].
unsigned int new_exec_argc = 0;
unsigned int new_v8_argc = 1;
unsigned int new_argc = 1;
new_v8_argv[0] = argv[0];
new_argv[0] = argv[0];
unsigned int index = 1;
while (index < nargs && argv[index][0] == '-') {
const char* const arg = argv[index];
unsigned int args_consumed = 1;
if (ParseDebugOpt(arg)) {
// Done, consumed by ParseDebugOpt().
} else if (strcmp(arg, "--version") == 0 || strcmp(arg, "-v") == 0) {
printf("%s\n", NODE_VERSION);
exit(0);
} else if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
PrintHelp();
exit(0);
} else if (strcmp(arg, "--eval") == 0 ||
strcmp(arg, "-e") == 0 ||
strcmp(arg, "--print") == 0 ||
strcmp(arg, "-pe") == 0 ||
strcmp(arg, "-p") == 0) {
bool is_eval = strchr(arg, 'e') != nullptr;
bool is_print = strchr(arg, 'p') != nullptr;
print_eval = print_eval || is_print;
// --eval, -e and -pe always require an argument.
if (is_eval == true) {
args_consumed += 1;
eval_string = argv[index + 1];
if (eval_string == nullptr) {
fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
exit(9);
}
} else if ((index + 1 < nargs) &&
argv[index + 1] != nullptr &&
argv[index + 1][0] != '-') {
args_consumed += 1;
eval_string = argv[index + 1];
if (strncmp(eval_string, "\\-", 2) == 0) {
// Starts with "\\-": escaped expression, drop the backslash.
eval_string += 1;
}
}
} else if (strcmp(arg, "--require") == 0 ||
strcmp(arg, "-r") == 0) {
const char* module = argv[index + 1];
if (module == nullptr) {
fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
exit(9);
}
args_consumed += 1;
local_preload_modules[preload_module_count++] = module;
} else if (strcmp(arg, "--interactive") == 0 || strcmp(arg, "-i") == 0) {
force_repl = true;
} else if (strcmp(arg, "--no-deprecation") == 0) {
no_deprecation = true;
} else if (strcmp(arg, "--trace-deprecation") == 0) {
trace_deprecation = true;
} else if (strcmp(arg, "--trace-sync-io") == 0) {
trace_sync_io = true;
} else if (strcmp(arg, "--throw-deprecation") == 0) {
throw_deprecation = true;
} else if (strcmp(arg, "--abort-on-uncaught-exception") == 0 ||
strcmp(arg, "--abort_on_uncaught_exception") == 0) {
abort_on_uncaught_exception = true;
} else if (strcmp(arg, "--v8-options") == 0) {
new_v8_argv[new_v8_argc] = "--help";
new_v8_argc += 1;
#if defined(NODE_HAVE_I18N_SUPPORT)
} else if (strncmp(arg, "--icu-data-dir=", 15) == 0) {
icu_data_dir = arg + 15;
#endif
} else if (strcmp(arg, "--expose-internals") == 0 ||
strcmp(arg, "--expose_internals") == 0) {
// consumed in js
} else {
// V8 option. Pass through as-is.
new_v8_argv[new_v8_argc] = arg;
new_v8_argc += 1;
}
memcpy(new_exec_argv + new_exec_argc,
argv + index,
args_consumed * sizeof(*argv));
new_exec_argc += args_consumed;
index += args_consumed;
}
// Copy remaining arguments.
const unsigned int args_left = nargs - index;
memcpy(new_argv + new_argc, argv + index, args_left * sizeof(*argv));
new_argc += args_left;
*exec_argc = new_exec_argc;
*exec_argv = new_exec_argv;
*v8_argc = new_v8_argc;
*v8_argv = new_v8_argv;
// Copy new_argv over argv and update argc.
memcpy(argv, new_argv, new_argc * sizeof(*argv));
delete[] new_argv;
*argc = static_cast<int>(new_argc);
// Copy the preload_modules from the local array to an appropriately sized
// global array.
if (preload_module_count > 0) {
CHECK(!preload_modules);
preload_modules = new const char*[preload_module_count];
memcpy(preload_modules, local_preload_modules,
preload_module_count * sizeof(*preload_modules));
}
delete[] local_preload_modules;
}
// Called from V8 Debug Agent TCP thread. // Called from V8 Debug Agent TCP thread.
static void DispatchMessagesDebugAgentCallback(Environment* env) { static void DispatchMessagesDebugAgentCallback(Environment* env) {
@ -3262,9 +3022,12 @@ static void StartDebug(Environment* env, bool wait) {
env->debugger_agent()->set_dispatch_handler( env->debugger_agent()->set_dispatch_handler(
DispatchMessagesDebugAgentCallback); DispatchMessagesDebugAgentCallback);
debugger_running = env->debugger_agent()->Start(debug_port, wait); debugger_running = env->debugger_agent()->Start(node_options.debug_port,
wait);
if (debugger_running == false) { if (debugger_running == false) {
fprintf(stderr, "Starting debugger on port %d failed\n", debug_port); fprintf(stderr,
"Starting debugger on port %d failed\n",
node_options.debug_port);
fflush(stderr); fflush(stderr);
return; return;
} }
@ -3634,8 +3397,8 @@ void Init(int* argc,
// Parse a few arguments which are specific to Node. // Parse a few arguments which are specific to Node.
int v8_argc; int v8_argc;
const char** v8_argv; const char** v8_argv;
ParseArgs(argc, argv, exec_argc, exec_argv, &v8_argc, &v8_argv); node_options.ParseArgs(argc, argv, exec_argc, exec_argv, &v8_argc, &v8_argv);
no_deprecation = node_options.no_deprecation;
// TODO(bnoordhuis) Intercept --prof arguments and start the CPU profiler // TODO(bnoordhuis) Intercept --prof arguments and start the CPU profiler
// manually? That would give us a little more control over its runtime // manually? That would give us a little more control over its runtime
// behavior but it could also interfere with the user's intentions in ways // behavior but it could also interfere with the user's intentions in ways
@ -3674,14 +3437,14 @@ void Init(int* argc,
exit(9); exit(9);
} }
if (debug_wait_connect) { if (node_options.debug_wait_connect) {
const char expose_debug_as[] = "--expose_debug_as=v8debug"; const char expose_debug_as[] = "--expose_debug_as=v8debug";
V8::SetFlagsFromString(expose_debug_as, sizeof(expose_debug_as) - 1); V8::SetFlagsFromString(expose_debug_as, sizeof(expose_debug_as) - 1);
} }
V8::SetArrayBufferAllocator(&ArrayBufferAllocator::the_singleton); V8::SetArrayBufferAllocator(&ArrayBufferAllocator::the_singleton);
if (!use_debug_agent) { if (!node_options.use_debug_agent) {
RegisterDebugSignalHandler(); RegisterDebugSignalHandler();
} }
@ -3894,14 +3657,15 @@ static void StartNodeInstance(void* arg) {
Environment* env = CreateEnvironment(isolate, context, instance_data); Environment* env = CreateEnvironment(isolate, context, instance_data);
Context::Scope context_scope(context); Context::Scope context_scope(context);
if (instance_data->is_main()) if (instance_data->is_main())
env->set_using_abort_on_uncaught_exc(abort_on_uncaught_exception); env->set_using_abort_on_uncaught_exc(
node_options.abort_on_uncaught_exception);
// Start debug agent when argv has --debug // Start debug agent when argv has --debug
if (instance_data->use_debug_agent()) if (instance_data->use_debug_agent())
StartDebug(env, debug_wait_connect); StartDebug(env, node_options.debug_wait_connect);
LoadEnvironment(env); LoadEnvironment(env);
env->set_trace_sync_io(trace_sync_io); env->set_trace_sync_io(node_options.trace_sync_io);
// Enable debugger // Enable debugger
if (instance_data->use_debug_agent()) if (instance_data->use_debug_agent())
@ -3978,7 +3742,7 @@ int Start(int argc, char** argv) {
const_cast<const char**>(argv), const_cast<const char**>(argv),
exec_argc, exec_argc,
exec_argv, exec_argv,
use_debug_agent); node_options.use_debug_agent);
StartNodeInstance(&instance_data); StartNodeInstance(&instance_data);
exit_code = instance_data.exit_code(); exit_code = instance_data.exit_code();
} }

305
src/node_options.cc Normal file
View File

@ -0,0 +1,305 @@
#include "node_options.h"
#include "node_version.h"
#include "node_internals.h"
#include "getopt.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
namespace node {
enum {
OPT_NO_DEPRECATION = 1000,
OPT_THROW_DEPRECATION,
OPT_TRACE_DEPRECATION,
OPT_TRACE_SYNC_IO,
OPT_V8_OPTIONS,
OPT_ABORT_UNCAUGHT,
OPT_EXPOSE_INTERNALS,
OPT_DEBUG,
OPT_DEBUG_BRK,
OPT_DEBUG_PORT,
#if defined(NODE_HAVE_I18N_SUPPORT)
OPT_ICU_DATA_DIR
#endif
};
static struct option longopts[] = {
{ "help", no_argument, nullptr, 'h', "show help and usage" },
{ "version", no_argument, nullptr, 'v', "print io.js version" },
{ "eval", optional_argument, nullptr, 'e', "evaluate script" },
{ "print", optional_argument, nullptr, 'p',
"evaluate script and print result" },
{ "interactive", no_argument, nullptr, 'i',
"always enter the REPL even if stdin "
"does not appear to be a terminal" },
{ "require", required_argument, nullptr, 'r', "module to preload" },
{ "no-deprecation", no_argument, nullptr, OPT_NO_DEPRECATION,
"silence deprecation warnings" },
{ "throw-deprecation", no_argument, nullptr, OPT_THROW_DEPRECATION,
"throw an exception anytime a deprecated function is used" },
{ "trace-deprecation", no_argument, nullptr, OPT_TRACE_DEPRECATION,
"show stack traces on deprecations" },
{ "trace-sync-io", no_argument, nullptr, OPT_TRACE_SYNC_IO,
"show stake trace when use of sync IO "
"is detected after the first tick" },
{ "v8-options", no_argument, nullptr, OPT_V8_OPTIONS,
"print v8 command line options" },
{ "v8_options", no_argument, nullptr, OPT_V8_OPTIONS,
"print v8 command line options" },
{ "abort-on-uncaught-exception", no_argument, nullptr, OPT_ABORT_UNCAUGHT,
"abort on uncaught exception" },
{ "abort_on_uncaught_exception", no_argument, nullptr, OPT_ABORT_UNCAUGHT,
"abort on uncaught exception" },
{ "expose-internals", no_argument, nullptr, OPT_EXPOSE_INTERNALS,
"expose internal modules" },
{ "expose_internals", no_argument, nullptr, OPT_EXPOSE_INTERNALS,
"expose internal modules" },
{ "debug", optional_argument, nullptr, OPT_DEBUG, "enable debug mode" },
{ "debug-brk", optional_argument, nullptr, OPT_DEBUG_BRK,
"break before starting" },
{ "debug-port", required_argument, nullptr, OPT_DEBUG_PORT,
"specify debug port (defaults to 5858)" },
#if defined(NODE_HAVE_I18N_SUPPORT)
{ "icu-data-dir", required_argument, nullptr, OPT_ICU_DATA_DIR },
#endif
{ nullptr, 0, nullptr, 0, "" }
};
void NodeOptions::PrintHelp() {
printf("Usage: iojs [options] [ -e script | script.js ] [arguments] \n"
" iojs debug script.js [arguments] \n"
"\n"
"Options:\n");
for (size_t i = 0; i < ARRAY_SIZE(longopts); i++) {
if (longopts[i].name == nullptr)
continue;
if (longopts[i].val < 1000) {
printf("\t-%c, --%-30s %-50s\n",
longopts[i].val,
longopts[i].name,
longopts[i].desc);
} else {
printf("\t --%-30s %-50s\n", longopts[i].name, longopts[i].desc);
}
}
printf("\n");
printf("Environment variables:\n"
#ifdef _WIN32
"\t NODE_PATH ';'-separated list of directories\n"
#else
"\t NODE_PATH ':'-separated list of directories\n"
#endif
"\t prefixed to the module search path.\n"
"\t NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL\n"
#if defined(NODE_HAVE_I18N_SUPPORT)
"\t NODE_ICU_DATA Data path for ICU (Intl object) data\n"
#if !defined(NODE_HAVE_SMALL_ICU)
"\t (will extend linked-in data)\n"
#endif
#endif
"\n"
"Documentation can be found at https://iojs.org/\n");
}
void NodeOptions::ParseArgs(int* argc,
const char** argv,
int* exec_argc,
const char*** exec_argv,
int* v8_argc,
const char*** v8_argv) {
const unsigned int nargs = static_cast<unsigned int>(*argc);
const char** new_exec_argv = new const char*[nargs];
const char** new_v8_argv = new const char*[nargs];
const char** new_argv = new const char*[nargs];
const char** local_preload_modules = new const char*[nargs];
// we are mutating the strings vector but not the strings themselves
char** largv = const_cast<char**>(argv);
for (unsigned int i = 0; i < nargs; ++i) {
new_exec_argv[i] = nullptr;
new_v8_argv[i] = nullptr;
new_argv[i] = nullptr;
local_preload_modules[i] = nullptr;
}
const char* port = nullptr;
// exec_argv starts with the first option, the other two start with argv[0].
unsigned int new_exec_argc = 0;
unsigned int new_v8_argc = 1;
unsigned int new_argc = 1;
new_v8_argv[0] = argv[0];
new_argv[0] = argv[0];
int rc = 0;
unsigned int index = 1;
bool is_eval = false;
bool is_print = false;
const char optstring[] = ":hve:p::ir:d::b::x:";
while ((rc = getopt_long(*argc, largv, optstring, longopts, NULL)) != -1 &&
argv[index][0] == '-') {
unsigned int args_consumed = 1;
const char* const arg = argv[index];
switch (rc) {
case 'h':
PrintHelp();
exit(0);
break;
case 'v':
printf("%s\n", NODE_VERSION);
exit(0);
break;
case 'e':
case 'p':
{
if (!is_eval)
is_eval = (rc == 'e');
if (!is_print)
is_print = (rc == 'p');
const char* name = is_eval ? "eval" : "print";
print_eval = print_eval || is_print;
if (is_eval == true) {
eval_string = argv[index + 1];
args_consumed += 1;
if (eval_string == nullptr) {
fprintf(stderr, "%s: %s requires an argument\n", argv[0], name);
exit(9);
}
} else if ((index + 1 < nargs) &&
argv[index + 1] != nullptr &&
argv[index + 1][0] != '-') {
eval_string = argv[index + 1];
args_consumed += 1;
if (strncmp(eval_string, "\\-", 2) == 0) {
// Starts with "\\-": escaped expression, drop the backslash.
eval_string += 1;
}
}
break;
}
case 'i':
force_repl = true;
break;
case 'r':
{
const char* module = argv[index + 1];
args_consumed += 1;
if (module == nullptr) {
fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
exit(9);
}
local_preload_modules[preload_module_count++] = module;
break;
}
case OPT_NO_DEPRECATION:
no_deprecation = true;
break;
case OPT_THROW_DEPRECATION:
throw_deprecation = true;
break;
case OPT_TRACE_DEPRECATION:
trace_deprecation = true;
break;
case OPT_TRACE_SYNC_IO:
trace_sync_io = true;
break;
case OPT_V8_OPTIONS:
new_v8_argv[new_v8_argc] = "--help";
new_v8_argc += 1;
break;
case OPT_ABORT_UNCAUGHT:
abort_on_uncaught_exception = true;
break;
case OPT_EXPOSE_INTERNALS:
// pass through
break;
case OPT_DEBUG:
{
use_debug_agent = true;
if (optarg != nullptr) {
port = const_cast<const char*>(optarg);
}
break;
}
case OPT_DEBUG_BRK:
{
use_debug_agent = true;
debug_wait_connect = true;
if (optarg != nullptr) {
port = const_cast<const char*>(optarg);
}
break;
}
case OPT_DEBUG_PORT:
{
port = optarg;
break;
}
#if defined(NODE_HAVE_I18N_SUPPORT)
case OPT_ICU_DATA_DIR:
{
if (optarg != nullptr) {
icu_data_dir = const_cast<const char*>(optarg);
}
break;
}
#endif
case '?':
{
if (arg[0] == '-') {
// V8 option. Pass through as-is.
new_v8_argv[new_v8_argc] = arg;
new_v8_argc += 1;
}
break;
}
}
memcpy(new_exec_argv + new_exec_argc,
largv + index,
args_consumed * sizeof(*largv));
new_exec_argc += args_consumed;
index += args_consumed;
}
if (port != nullptr) {
debug_port = atoi(port);
if (debug_port < 1024 || debug_port > 65535) {
fprintf(stderr, "Debug port must be in range 1024 to 65535.\n");
PrintHelp();
exit(12);
}
}
// Copy remaining arguments.
const unsigned int args_left = nargs - index;
memcpy(new_argv + new_argc, argv + index, args_left * sizeof(*argv));
new_argc += args_left;
*exec_argc = new_exec_argc;
*exec_argv = new_exec_argv;
*v8_argc = new_v8_argc;
*v8_argv = new_v8_argv;
// Copy new_argv over argv and update argc.
memcpy(argv, new_argv, new_argc * sizeof(*argv));
delete[] new_argv;
*argc = static_cast<int>(new_argc);
// Copy the preload_modules from the local array to an appropriately sized
// global array.
if (preload_module_count > 0) {
CHECK(!preload_modules);
preload_modules = new const char*[preload_module_count];
memcpy(preload_modules,
local_preload_modules,
preload_module_count * sizeof(*preload_modules));
}
delete[] local_preload_modules;
}
} // namespace node

62
src/node_options.h Normal file
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@ -0,0 +1,62 @@
#ifndef SRC_NODE_OPTIONS_H_
#define SRC_NODE_OPTIONS_H_
#include "node_version.h"
#include "util.h"
#include "getopt.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
namespace node {
class NodeOptions {
public:
bool print_eval = false;
bool force_repl = false;
bool trace_deprecation = false;
bool throw_deprecation = false;
bool abort_on_uncaught_exception = false;
bool trace_sync_io = false;
const char* eval_string = nullptr;
unsigned int preload_module_count = 0;
const char** preload_modules = nullptr;
bool use_debug_agent = false;
bool debug_wait_connect = false;
int debug_port = 5858;
bool no_deprecation = false;
#if defined(NODE_HAVE_I18N_SUPPORT)
// Path to ICU data (for i18n / Intl)
const char* icu_data_dir = nullptr;
#endif
NodeOptions() = default;
// Print help to stdout
void PrintHelp();
// Parse command line arguments.
//
// argv is modified in place. exec_argv and v8_argv are out arguments that
// ParseArgs() allocates memory for and stores a pointer to the output
// vector in. The caller should free them with delete[].
//
// On exit:
//
// * argv contains the arguments with node and V8 options filtered out.
// * exec_argv contains both node and V8 options and nothing else.
// * v8_argv contains argv[0] plus any V8 options
void ParseArgs(int* argc,
const char** argv,
int* exec_argc,
const char*** exec_argv,
int* v8_argc,
const char*** v8_argv);
private:
DISALLOW_COPY_AND_ASSIGN(NodeOptions);
};
} // namespace node
#endif // SRC_NODE_OPTIONS_H_

20
test/parallel/test-cli-debug.js Normal file
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@ -0,0 +1,20 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const execFile = require('child_process').execFile;
const EOL = require('os').EOL;
var depmod = require.resolve('../fixtures/printA.js');
var node = process.execPath;
var debug = ['--debug', depmod];
var debugPort = ['--debug=5859', depmod];
function handle(port) {
return function(er, stdout, stderr) {
assert.equal(er, null);
assert.equal(stderr, `Debugger listening on port ${port}${EOL}`);
};
}
execFile(node, debug, handle(5858));
execFile(node, debugPort, handle(5859));

10
test/parallel/test-cli-help.js Normal file
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@ -0,0 +1,10 @@
'use strict';
const assert = require('assert');
const execFile = require('child_process').execFile;
// test --help
execFile(process.execPath, ['--help'], function(err, stdout, stderr) {
assert.equal(err, null);
assert.equal(stderr, '');
assert.equal(/Usage/.test(stdout), true);
});

16
test/parallel/test-cli-v8-options.js Normal file
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@ -0,0 +1,16 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const execFile = require('child_process').execFile;
// test --v8-options and --v8_options
(function runTest(flags) {
var flag = flags.pop();
execFile(process.execPath, [flag], function(err, stdout, stderr) {
assert.equal(err, null);
assert.equal(stderr, '');
assert.equal(stdout.indexOf('Usage') > -1, true);
if (flags.length > 0)
setImmediate(runTest, flags);
});
})(['--v8-options', '--v8_options']);

11
test/parallel/test-cli-version.js Normal file
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@ -0,0 +1,11 @@
'use strict';
const assert = require('assert');
const execFile = require('child_process').execFile;
// test --version
execFile(process.execPath, ['--version'], function(err, stdout, stderr) {
assert.equal(err, null);
assert.equal(stderr, '');
// just in case the version ever has anything appended to it (nightlies?)
assert.equal(/v([\d]+).([\d]+).([\d]+)(.*)/.test(stdout), true);
});

11
test/sequential/test-deprecation-flags.js
View File

@ -8,6 +8,7 @@ var node = process.execPath;
var normal = [depmod]; var normal = [depmod];
var noDep = ['--no-deprecation', depmod]; var noDep = ['--no-deprecation', depmod];
var traceDep = ['--trace-deprecation', depmod]; var traceDep = ['--trace-deprecation', depmod];
var throwDep = ['--throw-deprecation', depmod];
execFile(node, normal, function(er, stdout, stderr) { execFile(node, normal, function(er, stdout, stderr) {
console.error('normal: show deprecation warning'); console.error('normal: show deprecation warning');
@ -36,3 +37,13 @@ execFile(node, traceDep, function(er, stdout, stderr) {
assert.equal(stack.pop(), '\'This is deprecated\''); assert.equal(stack.pop(), '\'This is deprecated\'');
console.log('trace ok'); console.log('trace ok');
}); });
execFile(node, throwDep, function(er, stdout, stderr) {
console.error('--throw-deprecation: show stack');
assert.equal(/Error: Command failed/.test(er), true);
assert.equal(stdout, '');
var stack = stderr.trim().split('\n');
assert.equal(/util.js:([\d]+)/.test(stack[0]), true);
assert.equal(/throw new Error\(msg\)/.test(stack[1]), true);
console.log('throw ok');
});