src/win32/configure.js

   1 /* Configure script for modbus.dll, specific for Windows with Scripting Host.
   2  *
   3  * Inspired by configure.js from libxml2
   4  *
   5  * oldfaber  < oldfaber _at_ gmail _dot_ com >
   6  *
   7  */
   8
   9 /* The source directory, relative to the one where this file resides. */
  10 var srcDir = "..";
  11 /* Base name of what we are building. */
  12 var baseName = "modbus";
  13 /* Configure file template and output file */
  14 var configFile = srcDir + "\\..\\configure.ac";
  15 /* Input and output files for the modbus-version.h include */
  16 var newfile;
  17 /* Version strings for the binary distribution. Will be filled later in the code. */
  18 var verMajor;
  19 var verMinor;
  20 var verMicro;
  21 /* modbus features. */
  22 var dryRun = false;
  23 /* Win32 build options. NOT used yet */
  24 var compiler = "msvc";
  25 /* Local stuff */
  26 var error = 0;
  27 /* Filename */
  28 var newFile;
  29
  30 /* Displays the details about how to use this script. */
  31 function usage() {
  32     var txt;
  33
  34     txt = "Usage:\n";
  35     txt += "  cscript " + WScript.ScriptName + " <options>\n";
  36     txt += "  cscript " + WScript.ScriptName + " help\n\n";
  37     txt +=
  38         "Options can be specified in the form <option>=<value>, where the value is\n";
  39     txt += "either 'yes' or 'no', if not stated otherwise.\n\n";
  40     txt +=
  41         "\nModbus library configure options, default value given in parentheses:\n\n";
  42     txt +=
  43         "  dry-run:  Run configure without creating files (" +
  44         (dryRun ? "yes" : "no") +
  45         ")\n";
  46     txt += "\nWin32 build options, default value given in parentheses:\n\n";
  47     txt += "  compiler: Compiler to be used [msvc|mingw] (" + compiler + ")\n";
  48     WScript.Echo(txt);
  49 }
  50
  51 /* read the version from the configuration file */
  52 function readVersion() {
  53     var fso, cf, ln, s;
  54     fso = new ActiveXObject("Scripting.FileSystemObject");
  55     cf = fso.OpenTextFile(configFile, 1);
  56     while (cf.AtEndOfStream !== true) {
  57         ln = cf.ReadLine();
  58         s = new String(ln);
  59         if (s.search(/^m4_define\(\[libmodbus_version_major/) != -1) {
  60             verMajor = s.substr(s.indexOf(",") + 3, 1);
  61         } else if (s.search(/^m4_define\(\[libmodbus_version_minor/) != -1) {
  62             verMinor = s.substr(s.indexOf(",") + 3, 1);
  63         } else if (s.search(/^m4_define\(\[libmodbus_version_micro/) != -1) {
  64                         str_start_idx = s.indexOf(",") + 3;
  65                         num_str_length = s.length - str_start_idx - 2;
  66             verMicro = s.substr(str_start_idx, num_str_length);
  67         }
  68     }
  69     cf.Close();
  70 }
  71
  72 /* create the versioned file */
  73 function createVersionedFile(newfile, unversioned) {
  74     var fso, ofi, of, ln, s;
  75     fso = new ActiveXObject("Scripting.FileSystemObject");
  76     ofi = fso.OpenTextFile(unversioned, 1);
  77     if (!dryRun) {
  78         of = fso.CreateTextFile(newfile, true);
  79     }
  80     while (ofi.AtEndOfStream !== true) {
  81         ln = ofi.ReadLine();
  82         s = new String(ln);
  83         if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MAJOR\@/) != -1) {
  84             of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MAJOR\@/, verMajor));
  85         } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MINOR\@/) != -1) {
  86             of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MINOR\@/, verMinor));
  87         } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MICRO\@/) != -1) {
  88             of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MICRO\@/, verMicro));
  89         } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION\@/) != -1) {
  90             of.WriteLine(
  91                 s.replace(
  92                     /\@LIBMODBUS_VERSION\@/,
  93                     verMajor + "." + verMinor + "." + verMicro
  94                 )
  95             );
  96         } else {
  97             if (!dryRun) {
  98                 of.WriteLine(ln);
  99             }
 100         }
 101     }
 102     ofi.Close();
 103     if (!dryRun) {
 104         of.Close();
 105     }
 106 }
 107
 108 /*
 109  * main(),
 110  * Execution begins here.
 111  */
 112
 113 // Parse the command-line arguments.
 114 for (i = 0; i < WScript.Arguments.length && error === 0; i++) {
 115     var arg, opt;
 116     arg = WScript.Arguments(i);
 117     opt = arg.substring(0, arg.indexOf("="));
 118     if (opt.length > 0) {
 119         if (opt == "dry-run") {
 120             var str = arg.substring(opt.length + 1, arg.length);
 121             if (opt == 1 || opt == "yes") {
 122                 dryRun = true;
 123             }
 124         } else if (opt == "compiler") {
 125             compiler = arg.substring(opt.length + 1, arg.length);
 126         } else {
 127             error = 1;
 128         }
 129     } else if (i === 0) {
 130         if (arg == "help") {
 131             usage();
 132             WScript.Quit(0);
 133         }
 134     } else {
 135         error = 1;
 136     }
 137 }
 138
 139 // If we fail here, it is because the user supplied an unrecognised argument.
 140 if (error !== 0) {
 141     usage();
 142     WScript.Quit(error);
 143 }
 144
 145 // Read the the version.
 146 readVersion();
 147 if (error !== 0) {
 148     WScript.Echo("Version discovery failed, aborting.");
 149     WScript.Quit(error);
 150 }
 151
 152 newfile = srcDir + "\\modbus-version.h";
 153 createVersionedFile(newfile, srcDir + "\\modbus-version.h.in");
 154 if (error !== 0) {
 155     WScript.Echo("Creation of " + newfile + " failed, aborting.");
 156     WScript.Quit(error);
 157 }
 158 WScript.Echo(newfile + " created.");
 159
 160 newfile = "modbus.dll.manifest";
 161 createVersionedFile(newfile, "modbus.dll.manifest.in");
 162 if (error !== 0) {
 163     WScript.Echo("Creation of " + newfile + " failed, aborting.");
 164     WScript.Quit(error);
 165 }
 166 WScript.Echo(newfile + " created.");
 167
 168 newfile = "config.h";
 169 createVersionedFile(newfile, "config.h.win32");
 170 if (error !== 0) {
 171     WScript.Echo("Creation of " + newfile + " failed, aborting.");
 172     WScript.Quit(error);
 173 }
 174 WScript.Echo(newfile + " created.");
 175
 176 WScript.Echo("\nLibmodbus configuration completed\n");