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Comment:In the command-line shell, on the banner, warn about the use of a transient in-memory database in bold red text.
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SHA1:0fbc0fcec1b3a67065fa0ebb49375bf675789edc
User & Date: drh 2014-02-10 19:27:05
Context
2014-02-10
19:36
On unix, make the "transient in-memory database" text bold, but not red. Leave the text read on windows. check-in: c9eba2f7 user: drh tags: memdb-warning
19:27
In the command-line shell, on the banner, warn about the use of a transient in-memory database in bold red text. check-in: 0fbc0fce user: drh tags: memdb-warning
16:13
Modify the command-line shell to print a warning when using an in-memory database. check-in: 90e9deae user: drh tags: memdb-warning
Changes
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Changes to src/shell.c.

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  sqlite3_config(SQLITE_CONFIG_URI, 1);
  sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
  sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
  sqlite3_snprintf(sizeof(continuePrompt), continuePrompt,"   ...> ");
  sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
}
























/*
** Get the argument to an --option.  Throw an error and die if no argument
** is available.
*/
static char *cmdline_option_value(int argc, char **argv, int i){
  if( i==argc ){
    fprintf(stderr, "%s: Error: missing argument to %s\n",
................................................................................
        exit(1);
      }
    }
  }
  if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
    data.zDbFilename = ":memory:";
    warnInmemoryDb = 1;
#else
    fprintf(stderr,"%s: Error: no database filename specified\n", Argv0);
    return 1;
#endif
  }
  data.out = stdout;

................................................................................
    */
    if( stdin_is_interactive ){
      char *zHome;
      char *zHistory = 0;
      int nHistory;
      printf(
        "SQLite version %s %.19s\n" /*extra-version-info*/
        "Enter \".help\" for instructions\n"
        "Enter SQL statements terminated with a \";\"\n",
        sqlite3_libversion(), sqlite3_sourceid()
      );
      if( warnInmemoryDb ){
         printf(

            "Warning: connected to an in-memory database. "

            "Use \".open FILENAME\" to change\nto a persistent "
            "on-disk database.\n"
         );
      }
      zHome = find_home_dir();
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }







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  sqlite3_config(SQLITE_CONFIG_URI, 1);
  sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
  sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
  sqlite3_snprintf(sizeof(continuePrompt), continuePrompt,"   ...> ");
  sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
}

/*
** Arrange for subsequent text console output to be RED or normal.  Use
** the SetConsoleTextAttribute() function on windows.  On all other
** platforms, assume VT100 escape sequences are recognized.
*/
#ifdef _WIN32
static void outputRed(void){
   SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
         FOREGROUND_RED|FOREGROUND_INTENSITY);
}
static void outputNormal(void){
  SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
         FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
}
#else
static void outputRed(void){
  printf("\033[1;31m");
}
static void outputNormal(void){
  printf("\033[0m");
}
#endif

/*
** Get the argument to an --option.  Throw an error and die if no argument
** is available.
*/
static char *cmdline_option_value(int argc, char **argv, int i){
  if( i==argc ){
    fprintf(stderr, "%s: Error: missing argument to %s\n",
................................................................................
        exit(1);
      }
    }
  }
  if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
    data.zDbFilename = ":memory:";
    warnInmemoryDb = argc==1;
#else
    fprintf(stderr,"%s: Error: no database filename specified\n", Argv0);
    return 1;
#endif
  }
  data.out = stdout;

................................................................................
    */
    if( stdin_is_interactive ){
      char *zHome;
      char *zHistory = 0;
      int nHistory;
      printf(
        "SQLite version %s %.19s\n" /*extra-version-info*/
        "Enter \".help\" for usage hints.\n",

        sqlite3_libversion(), sqlite3_sourceid()
      );
      if( warnInmemoryDb ){
        printf("Connected to a ");
        outputRed();
        printf("transient in-memory database");
        outputNormal();
        printf(".\nUse \".open FILENAME\" to reopen on a "
               "persistent database.\n");

      }
      zHome = find_home_dir();
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }