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171
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1 /*
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2 main.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWAR.
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6
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7 LWAR is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 Implements the program startup code
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22
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23 */
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24
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25 #ifdef HAVE_CONFIG_H
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26 #include "config.h"
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27 #endif
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28
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29 #include <argp.h>
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30 #include <errno.h>
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31 #include <stdio.h>
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32 #include <stdlib.h>
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172
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33 #include <sys/types.h>
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34 #include <sys/stat.h>
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35 #include <unistd.h>
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171
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36
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37 #include "lwar.h"
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38
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39 // command line option handling
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40 const char *argp_program_version = "LWAR from " PACKAGE_STRING;
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41 const char *argp_program_bug_address = PACKAGE_BUGREPORT;
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42
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43 static error_t parse_opts(int key, char *arg, struct argp_state *state)
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44 {
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45 switch (key)
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46 {
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47 case 'd':
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48 // debug
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49 debug_level++;
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50 break;
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51
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172
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52 case 'a':
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53 // add members
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54 operation = LWAR_OP_ADD;
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55 break;
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56
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57 case 'c':
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58 // create archive
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59 operation = LWAR_OP_CREATE;
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60 break;
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174
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61
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62 case 'm':
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63 mergeflag = 1;
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64 break;
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65
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188
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66 case 'r':
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67 // replace members
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68 operation = LWAR_OP_REPLACE;
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69 break;
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172
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70
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71 case 'l':
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72 // list members
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73 operation = LWAR_OP_LIST;
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74 break;
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75
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188
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76 case 'x':
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77 // extract members
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78 operation = LWAR_OP_EXTRACT;
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79 break;
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80
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172
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81 case ARGP_KEY_ARG:
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82 if (archive_file)
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83 {
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84 // add archive member to list
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85 add_file_name(arg);
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86 }
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87 else
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88 archive_file = arg;
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89 break;
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171
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90
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91 default:
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92 return ARGP_ERR_UNKNOWN;
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93 }
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94 return 0;
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95 }
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96
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97 static struct argp_option options[] =
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98 {
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188
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99 { "replace", 'r', 0, 0,
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100 "Add or replace archive members" },
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101 { "extract", 'x', 0, 0,
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102 "Extract members from the archive" },
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172
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103 { "add", 'a', 0, 0,
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104 "Add members to the archive" },
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105 { "list", 'l', 0, 0,
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106 "List the contents of the archive" },
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107 { "create", 'c', 0, 0,
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108 "Create new archive (or truncate existing one)" },
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174
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109 { "merge", 'm', 0, 0,
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110 "Add the contents of archive arguments instead of the archives themselves" },
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171
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111 { "debug", 'd', 0, 0,
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112 "Set debug mode"},
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113 { 0 }
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114 };
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115
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116 static struct argp argp =
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117 {
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118 options,
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119 parse_opts,
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172
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120 "<archive> [<file> ...]",
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121 "LWAR, a library file manager for LWLINK"
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171
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122 };
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123
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172
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124 extern void do_list(void);
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125 extern void do_add(void);
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126 extern void do_remove(void);
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188
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127 extern void do_replace(void);
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128 extern void do_extract(void);
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172
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129
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171
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130 // main function; parse command line, set up assembler state, and run the
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131 // assembler on the first file
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132 int main(int argc, char **argv)
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133 {
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134 argp_parse(&argp, argc, argv, 0, 0, NULL);
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172
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135 if (archive_file == NULL)
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136 {
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137 fprintf(stderr, "You must specify an archive file.\n");
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138 exit(1);
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139 }
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140
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141 if (operation == 0)
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142 {
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143 fprintf(stderr, "You must specify an operation.\n");
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144 exit(1);
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145 }
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146
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188
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147 if (operation == LWAR_OP_LIST || operation == LWAR_OP_REMOVE || operation == LWAR_OP_EXTRACT)
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172
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148 {
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149 struct stat stbuf;
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150 // make sure the archive exists
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151 if (stat(archive_file, &stbuf) < 0)
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152 {
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153 fprintf(stderr, "Cannot open archive file %s:\n", archive_file);
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154 perror("");
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155 exit(2);
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156 }
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157 }
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158 if (operation == LWAR_OP_CREATE)
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159 {
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160 struct stat stbuf;
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161 // check if the archive exists
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162 if (stat(archive_file, &stbuf) < 0)
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163 {
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164 if (errno != ENOENT)
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165 {
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166 fprintf(stderr, "Cannot create archive file %s:\n", archive_file);
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167 perror("");
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168 exit(2);
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169 }
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170 }
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171 else
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172 {
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173 if (unlink(archive_file) < 0)
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174 {
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175 fprintf(stderr, "Cannot create archive file %s:\n", archive_file);
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176 perror("");
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177 exit(2);
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178 }
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179
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180 }
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181 }
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171
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182
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172
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183 switch (operation)
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184 {
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185 case LWAR_OP_LIST:
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186 do_list();
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187 break;
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188
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189 case LWAR_OP_ADD:
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190 case LWAR_OP_CREATE:
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191 do_add();
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192 break;
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193
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194 case LWAR_OP_REMOVE:
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195 do_remove();
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196 break;
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197
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188
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198 case LWAR_OP_REPLACE:
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199 do_replace();
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200 break;
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201
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202 case LWAR_OP_EXTRACT:
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203 do_extract();
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204 break;
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172
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205 }
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206
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171
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207 exit(0);
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208 }
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