script.cc

   1 /*
   2  * Copyright (c) 2001, Jan Nieuwenhuizen.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by DJ Delorie <dj@cygnus.com>
  13  *            Jan Nieuwenhuizen <janneke@gnu.org>
  14  *
  15  */
  16
  17 /* The purpose of this file is to provide functions for the invocation
  18    of install scripts. */
  19
  20 #if 0
  21 static const char *cvsid =
  22   "\n%%% $Id$\n";
  23 #endif
  24
  25 #include "win32.h"
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <stdio.h>
  29 #include "log.h"
  30 #include "filemanip.h"
  31 #include "mount.h"
  32 #include "io_stream.h"
  33 #include "script.h"
  34
  35 static String sh = String();
  36 static const char *cmd = 0;
  37 static OSVERSIONINFO verinfo;
  38
  39 static const char *shells[] = {
  40   "/bin/sh.exe",
  41   "/usr/bin/sh.exe",
  42   "/bin/bash.exe",
  43   "/usr/bin/bash.exe",
  44   0
  45 };
  46
  47 void
  48 init_run_script ()
  49 {
  50   for (int i = 0; shells[i]; i++)
  51     {
  52       sh = backslash (cygpath (shells[i]));
  53       if (_access (sh.cstr_oneuse(), 0) == 0)
  54         break;
  55       sh = String();
  56     }
  57
  58   char old_path[_MAX_PATH];
  59   GetEnvironmentVariable ("PATH", old_path, sizeof (old_path));
  60   SetEnvironmentVariable ("PATH", backslash (cygpath ("/bin") + ";" +
  61                                              cygpath ("/usr/bin") + ";" +
  62                                              old_path).cstr_oneuse());
  63   SetEnvironmentVariable ("CYGWINROOT", get_root_dir ().cstr_oneuse());
  64
  65   verinfo.dwOSVersionInfoSize = sizeof (verinfo);
  66   GetVersionEx (&verinfo);
  67
  68   switch (verinfo.dwPlatformId)
  69     {
  70     case VER_PLATFORM_WIN32_NT:
  71       cmd = "cmd.exe";
  72       break;
  73     case VER_PLATFORM_WIN32_WINDOWS:
  74       cmd = "command.com";
  75       break;
  76     default:
  77       cmd = "command.com";
  78       break;
  79     }
  80 }
  81
  82 static void
  83 run (const char *sh, const char *args, const char *file)
  84 {
  85   char cmdline[_MAX_PATH];
  86   STARTUPINFO si;
  87   PROCESS_INFORMATION pi;
  88
  89   sprintf (cmdline, "%s %s %s", sh, args, file);
  90   memset (&pi, 0, sizeof (pi));
  91   memset (&si, 0, sizeof (si));
  92   si.cb = sizeof (si);
  93   si.lpTitle = (char *) "Cygwin Setup Post-Install Script";
  94   si.dwFlags = STARTF_USEPOSITION;
  95
  96   BOOL createSucceeded = CreateProcess (0, cmdline, 0, 0, 0,
  97                      CREATE_NEW_CONSOLE, 0, get_root_dir ().cstr_oneuse(), &si, &pi);
  98
  99   if (createSucceeded)
 100     WaitForSingleObject (pi.hProcess, INFINITE);
 101   CloseHandle(pi.hProcess);
 102   CloseHandle(pi.hThread);
 103 }
 104
 105 void
 106 run_script (String const &dir, String const &fname)
 107 {
 108   char *ext = strrchr (fname.cstr_oneuse(), '.');
 109   if (!ext)
 110     return;
 111
 112   if (sh.size() && strcmp (ext, ".sh") == 0)
 113     {
 114       String f2 = dir + fname;
 115       log (LOG_PLAIN, String ("running: ") + sh + " -c " + f2);
 116       run (sh.cstr_oneuse(), "-c", f2.cstr_oneuse());
 117     }
 118   else if (cmd && strcmp (ext, ".bat") == 0)
 119     {
 120       String f2 = backslash (cygpath (dir + fname));
 121       log (LOG_PLAIN, String ("running: ") + cmd + " /c " + f2);
 122       run (cmd, "/c", f2.cstr_oneuse());
 123     }
 124   else
 125     return;
 126
 127   /* if file exists then delete it otherwise just ignore no file error */
 128   io_stream::remove (String ("cygfile://") + dir + fname + ".done");
 129
 130   io_stream::move (String ("cygfile://") + dir + fname,
 131                    String ("cygfile://") + dir + fname+ ".done");
 132 }
 133
 134 void
 135 try_run_script (String const &dir, String const &fname)
 136 {
 137   if (io_stream::exists (String ("cygfile://")+ dir + fname + ".sh"))
 138     run_script (dir.cstr_oneuse(), (fname + ".sh").cstr_oneuse());
 139   if (io_stream::exists (String ("cygfile://")+ dir + fname + ".bat"))
 140     run_script (dir.cstr_oneuse(), (fname + ".bat").cstr_oneuse());
 141 }
 142
 143 bool
 144 Script::isAScript (String const &file)
 145 {
 146     /* file may be /etc/postinstall or etc/postinstall */
 147     if (file.casecompare ("/etc/postinstall/", 17) && file.casecompare ("etc/postinstall/", 16))
 148       return false;
 149     if (file.cstr_oneuse()[file.size() - 1] == '/')
 150       return false;
 151     return true;
 152 }
 153
 154 Script::Script (String const &fileName) : scriptName (fileName)
 155 {
 156
 157 }
 158
 159 String
 160 Script::baseName()const
 161 {
 162   String result = scriptName;
 163   while (result.find ('/'))
 164     result = result.substr(result.find ('/'));
 165   return result;
 166 }