ecosconfig.cxx

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//####COPYRIGHTBEGIN####
//                                                                          
// ----------------------------------------------------------------------------
// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
//
// This program is part of the eCos host tools.
//
// This program is free software; you can redistribute it and/or modify it 
// under the terms of the GNU General Public License as published by the Free 
// Software Foundation; either version 2 of the License, or (at your option) 
// any later version.
// 
// 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.
//
// ----------------------------------------------------------------------------
//                                                                          
//####COPYRIGHTEND####
//==========================================================================
//
//      ecosconfig.cxx
//
//      The implementation of ecosconfig command line processing
//
//==========================================================================
//==========================================================================
//#####DESCRIPTIONBEGIN####                                             
//
// Author(s):           jld
// Date:                1999-11-08
//
//####DESCRIPTIONEND####
//==========================================================================

#ifndef _MSC_VER
#include <sys/param.h>
#include <unistd.h> /* for realpath() */
#endif
#ifdef __CYGWIN__
#include <windows.h>
#include <sys/cygwin.h> /* for cygwin_conv_to_win32_path() */
#endif
#include "cdl_exec.hxx"
#include "ecosconfig.hxx"

#define TOOL_VERSION "1.3.net"
#define TOOL_COPYRIGHT "Copyright (c) 2000 Red Hat, Inc."
#define DEFAULT_SAVE_FILE "ecos.ecc"
static char* tool = "ecosconfig";

int main (int argc, char * argv []) {

    // process command qualifiers
    std::string repository;     // --srcdir=
    std::string savefile;       // --config=
    std::string install_prefix; // --prefix=
    bool version = false;       // --version
    bool no_resolve = false;    // --no-resolve
    bool quiet = false;         // -q, --quiet
    bool verbose = false;       // -v, --verbose
    bool ignore_errors = false; // -i, --ignore-errors
    bool help = false;          // --help
        
    // getopt() cannot easily be used here since this code has to
    // build with VC++ as well.
    bool args_ok = true;
    int command_index;
    for (command_index = 1; command_index < argc; command_index++) { // for each command line argument
        char* arg = argv[command_index];
        if (0 == strcmp(arg, "--help")) {
            help = true;
        } else if ((0 == strcmp(arg, "-q")) || (0 == strcmp(arg, "--quiet"))) {
            // Allow repeated use of -q and -v to override each other.
            // This is useful in conjunction with shell aliases.
            quiet = true;
            verbose = false;
        } else if ((0 == strcmp(arg, "-v")) || (0 == strcmp(arg, "--verbose"))) {
            verbose = true;
            quiet = false;
        } else if ((0 == strcmp(arg, "-i")) || (0 == strcmp(arg, "--ignore-errors"))) {
            // Duplicate use of -i and the other flags is harmless.
            ignore_errors = true;
        } else if (0 == strcmp(arg, "--version")) {
            version = true;
        } else if (0 == strcmp(arg, "--no-resolve")) {
            no_resolve = true;
        } else if (0 == strncmp(arg, "--srcdir", 8)) {
            // Duplicate use of --srcdir and other data-containing options should
            // be marked as an error.
            if ("" != repository) {
                fprintf(stderr, "%s: the `--srcdir' option should be used only once.\n", tool);
                args_ok = false;
            } else {
                if ('=' == arg[8]) {
                    repository = std::string(arg + 9);
                    if ("" == repository) {
                        fprintf(stderr, "%s: missing component repository after `--srcdir='\n", tool);
                        args_ok = false;
                    }
                } else if ('\0' == arg[8]) {
                    command_index++;
                    if (command_index == argc) {
                        fprintf(stderr, "%s: missing component repository after `--srcdir'\n", tool);
                        args_ok = false;
                    } else {
                        repository = argv[command_index];
                    }
                } else {
                    fprintf(stderr, "%s: invalid option `%s'\n", tool, arg);
                    args_ok = false;
                }
            }
        } else if (0 == strncmp(arg, "--config", 8)) {
            if ("" != savefile) {
                fprintf(stderr, "%s: the `--config' option should be used only once.\n", tool);
                args_ok = false;
            } else {
                if ('=' == arg[8]) {
                    savefile = std::string(arg + 9);
                    if ("" == savefile) {
                        fprintf(stderr, "%s: missing configuration savefile after `--config='\n", tool);
                        args_ok = false;
                    }
                } else if ('\0' == arg[8]) {
                    command_index++;
                    if (command_index == argc) {
                        fprintf(stderr, "%s: missing configuration savefile after `--config'\n", tool);
                        args_ok = false;
                    } else {
                        savefile = argv[command_index];
                    }
                } else {
                    fprintf(stderr, "%s: invalid option `%s'\n", tool, arg);
                    args_ok = false;
                }
            }
        } else if (0 == strncmp(arg, "--prefix", 8)) {
            if ("" != install_prefix) {
                fprintf(stderr, "%s: the `--prefix' option should be used only once.\n", tool);
                args_ok = false;
            } else {
                if ('=' == arg[8]) {
                    install_prefix = std::string(arg + 9);
                    if ("" == install_prefix) {
                        fprintf(stderr, "%s: missing install prefix after `--prefix='\n", tool);
                        args_ok = false;
                    }
                } else if ('\0' == arg[8]) {
                    command_index++;
                    if (command_index == argc) {
                        fprintf(stderr, "%s: missing install prefix after `--prefix'\n", tool);
                        args_ok = false;
                    } else {
                        install_prefix = argv[command_index];
                    }
                } else {
                    fprintf(stderr, "%s: invalid option `%s'\n", tool, arg);
                    args_ok = false;
                }
            }
        } else {
            // The argument is not a qualifier
            // However, none of the sub-commands begin with a -
            if ('-' == arg[0]) {
                fprintf(stderr, "%s: unknown option `%s'\n", tool, arg);
                args_ok = false;
            }
            break; // end of qualifiers
        }
    }

#if 0
    printf("args_ok is %d\n", args_ok);
    printf("help is %d\n", help);
    printf("version is %d\n", version);
    printf("no_resolve is %d\n", no_resolve);
    printf("quiet is %d\n", quiet);
    printf("verbose is %d\n", verbose);
    printf("ignore_errors is %d\n", ignore_errors);
    printf("repository is %s\n", repository.c_str());
    printf("savefile is %s\n", savefile.c_str());
    printf("install_prefix is %s\n", install_prefix.c_str());
    exit(EXIT_SUCCESS);
#endif
    
    // Usually argv[command_index] will be a sub-command, unless
    // --help or --version has been used.
    
    // Always output the version number, irrespective of subsequent
    // commands or any problems. This can be useful in batch jobs.
    if (version) {
        printf ("ecosconfig %s (%s %s)\n%s\n", TOOL_VERSION, __DATE__, __TIME__, TOOL_COPYRIGHT);
        if (command_index == argc) {
            return EXIT_SUCCESS;
        }
    }
    // Cope with --help and any user errors. If --help is used then
    // subsequent arguments should be ignored, as should any problems
    // with the arguments. This allows the user to type a partial
    // command, then switch to --help, and use shell history editing
    // to complete/correct the command.
    if (help || !args_ok || (command_index == argc)) {
        usage_message();
        return help ? EXIT_SUCCESS : EXIT_FAILURE;
    }
    
    // set the default save file
    if (savefile.empty ()) { // if the save file was not specified on the command line