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339
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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 #include <config.h>
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26
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27 #include <argp.h>
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28 #include <errno.h>
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <sys/types.h>
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32 #include <sys/stat.h>
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33 #include <unistd.h>
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34
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35 #include "lwar.h"
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36
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37 // command line option handling
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38 const char *argp_program_version = "LWAR from " PACKAGE_STRING;
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39 const char *argp_program_bug_address = PACKAGE_BUGREPORT;
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40 char *program_name;
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41
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42 static error_t parse_opts(int key, char *arg, struct argp_state *state)
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43 {
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44 switch (key)
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45 {
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46 case 'd':
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47 // debug
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48 debug_level++;
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49 break;
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50
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51 case 'a':
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52 // add members
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53 operation = LWAR_OP_ADD;
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54 break;
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55
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56 case 'c':
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57 // create archive
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58 operation = LWAR_OP_CREATE;
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59 break;
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60
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61 case 'm':
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62 mergeflag = 1;
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63 break;
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64
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65 case 'r':
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66 // replace members
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67 operation = LWAR_OP_REPLACE;
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68 break;
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69
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70 case 'l':
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71 // list members
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72 operation = LWAR_OP_LIST;
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73 break;
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74
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75 case 'x':
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76 // extract members
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77 operation = LWAR_OP_EXTRACT;
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78 break;
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79
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80 case ARGP_KEY_ARG:
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81 if (archive_file)
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82 {
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83 // add archive member to list
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84 add_file_name(arg);
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85 }
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86 else
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87 archive_file = arg;
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88 break;
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89
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90 default:
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91 return ARGP_ERR_UNKNOWN;
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92 }
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93 return 0;
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94 }
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95
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96 static struct argp_option options[] =
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97 {
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98 { "replace", 'r', 0, 0,
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99 "Add or replace archive members" },
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100 { "extract", 'x', 0, 0,
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101 "Extract members from the archive" },
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102 { "add", 'a', 0, 0,
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103 "Add members to the archive" },
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104 { "list", 'l', 0, 0,
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105 "List the contents of the archive" },
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106 { "create", 'c', 0, 0,
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107 "Create new archive (or truncate existing one)" },
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108 { "merge", 'm', 0, 0,
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109 "Add the contents of archive arguments instead of the archives themselves" },
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110 { "debug", 'd', 0, 0,
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111 "Set debug mode"},
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112 { 0 }
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113 };
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114
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115 static struct argp argp =
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116 {
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117 options,
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118 parse_opts,
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119 "<archive> [<file> ...]",
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120 "LWAR, a library file manager for LWLINK"
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121 };
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122
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123 extern void do_list(void);
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124 extern void do_add(void);
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125 extern void do_remove(void);
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126 extern void do_replace(void);
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127 extern void do_extract(void);
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128
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129 // main function; parse command line, set up assembler state, and run the
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130 // assembler on the first file
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131 int main(int argc, char **argv)
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132 {
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133 program_name = argv[0];
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134 argp_parse(&argp, argc, argv, 0, 0, NULL);
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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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147 if (operation == LWAR_OP_LIST || operation == LWAR_OP_REMOVE || operation == LWAR_OP_EXTRACT)
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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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182
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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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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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205 }
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206
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207 exit(0);
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208 }
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