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Overview
Comment:Add the --readonly option to the ".open" command in the CLI.
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SHA3-256: 06870bb15656b50b0e14d4364bb21afac76500e313ecf67aaef3688d603fd076
User & Date: drh 2018-02-14 23:27:43
Context
2018-02-15
01:03
Fix the --heap, --pagecache, --lookaside and other options to the command-line shell that invoke sqlite3_config() so that they work again. check-in: 00707f2f user: drh tags: trunk
2018-02-14
23:27
Add the --readonly option to the ".open" command in the CLI. check-in: 06870bb1 user: drh tags: trunk
20:58
Performance optimizations to the editdist3() function in the spellfix extension. check-in: 70d304dc user: drh tags: trunk
Changes
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Changes to src/shell.c.in.

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/* Allowed values for ShellState.openMode
*/
#define SHELL_OPEN_UNSPEC     0      /* No open-mode specified */
#define SHELL_OPEN_NORMAL     1      /* Normal database file */
#define SHELL_OPEN_APPENDVFS  2      /* Use appendvfs */
#define SHELL_OPEN_ZIPFILE    3      /* Use the zipfile virtual table */


/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Pagecache      0x00000001 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000002 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000004 /* The --backslash option is used */
................................................................................
  "                         tcl      TCL list elements\n"
  ".nullvalue STRING      Use STRING in place of NULL values\n"
  ".once (-e|-x|FILE)     Output for the next SQL command only to FILE\n"
  "                         or invoke system text editor (-e) or spreadsheet (-x)\n"
  "                         on the output.\n"
  ".open ?OPTIONS? ?FILE? Close existing database and reopen FILE\n"
  "                         The --new option starts with an empty file\n"

  ".output ?FILE?         Send output to FILE or stdout\n"
  ".print STRING...       Print literal STRING\n"
  ".prompt MAIN CONTINUE  Replace the standard prompts\n"
  ".quit                  Exit this program\n"
  ".read FILENAME         Execute SQL in FILENAME\n"
  ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
  ".save FILE             Write in-memory database into FILE\n"
................................................................................
        sqlite3_open_v2(p->zDbFilename, &p->db, 
           SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "apndvfs");
        break;
      }
      case SHELL_OPEN_ZIPFILE: {
        sqlite3_open(":memory:", &p->db);
        break;




      }
      case SHELL_OPEN_UNSPEC:
      case SHELL_OPEN_NORMAL: {
        sqlite3_open(p->zDbFilename, &p->db);
        break;
      }
    }
................................................................................
        newFlag = 1;
#ifdef SQLITE_HAVE_ZIP
      }else if( optionMatch(z, "zip") ){
        p->openMode = SHELL_OPEN_ZIPFILE;
#endif
      }else if( optionMatch(z, "append") ){
        p->openMode = SHELL_OPEN_APPENDVFS;


      }else if( z[0]=='-' ){
        utf8_printf(stderr, "unknown option: %s\n", z);
        rc = 1;
        goto meta_command_exit;
      }
    }
    /* If a filename is specified, try to open it first */
................................................................................
#ifdef SQLITE_ENABLE_MULTIPLEX
  "   -multiplex           enable the multiplexor VFS\n"
#endif
  "   -newline SEP         set output row separator. Default: '\\n'\n"
  "   -nullvalue TEXT      set text string for NULL values. Default ''\n"
  "   -pagecache SIZE N    use N slots of SZ bytes each for page cache memory\n"
  "   -quote               set output mode to 'quote'\n"

  "   -separator SEP       set output column separator. Default: '|'\n"
  "   -stats               print memory stats before each finalize\n"
  "   -version             show SQLite version\n"
  "   -vfs NAME            use NAME as the default VFS\n"
#ifdef SQLITE_ENABLE_VFSTRACE
  "   -vfstrace            enable tracing of all VFS calls\n"
#endif
................................................................................
      }
#ifdef SQLITE_HAVE_ZIP
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;


    }
  }
  if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
    data.zDbFilename = ":memory:";
    warnInmemoryDb = argc==1;
#else







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/* Allowed values for ShellState.openMode
*/
#define SHELL_OPEN_UNSPEC     0      /* No open-mode specified */
#define SHELL_OPEN_NORMAL     1      /* Normal database file */
#define SHELL_OPEN_APPENDVFS  2      /* Use appendvfs */
#define SHELL_OPEN_ZIPFILE    3      /* Use the zipfile virtual table */
#define SHELL_OPEN_READONLY   4      /* Open a normal database read-only */

/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Pagecache      0x00000001 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000002 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000004 /* The --backslash option is used */
................................................................................
  "                         tcl      TCL list elements\n"
  ".nullvalue STRING      Use STRING in place of NULL values\n"
  ".once (-e|-x|FILE)     Output for the next SQL command only to FILE\n"
  "                         or invoke system text editor (-e) or spreadsheet (-x)\n"
  "                         on the output.\n"
  ".open ?OPTIONS? ?FILE? Close existing database and reopen FILE\n"
  "                         The --new option starts with an empty file\n"
  "                         Other options: --readonly --append --zip\n"
  ".output ?FILE?         Send output to FILE or stdout\n"
  ".print STRING...       Print literal STRING\n"
  ".prompt MAIN CONTINUE  Replace the standard prompts\n"
  ".quit                  Exit this program\n"
  ".read FILENAME         Execute SQL in FILENAME\n"
  ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
  ".save FILE             Write in-memory database into FILE\n"
................................................................................
        sqlite3_open_v2(p->zDbFilename, &p->db, 
           SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "apndvfs");
        break;
      }
      case SHELL_OPEN_ZIPFILE: {
        sqlite3_open(":memory:", &p->db);
        break;
      }
      case SHELL_OPEN_READONLY: {
        sqlite3_open_v2(p->zDbFilename, &p->db, SQLITE_OPEN_READONLY, 0);
        break;
      }
      case SHELL_OPEN_UNSPEC:
      case SHELL_OPEN_NORMAL: {
        sqlite3_open(p->zDbFilename, &p->db);
        break;
      }
    }
................................................................................
        newFlag = 1;
#ifdef SQLITE_HAVE_ZIP
      }else if( optionMatch(z, "zip") ){
        p->openMode = SHELL_OPEN_ZIPFILE;
#endif
      }else if( optionMatch(z, "append") ){
        p->openMode = SHELL_OPEN_APPENDVFS;
      }else if( optionMatch(z, "readonly") ){
        p->openMode = SHELL_OPEN_READONLY;
      }else if( z[0]=='-' ){
        utf8_printf(stderr, "unknown option: %s\n", z);
        rc = 1;
        goto meta_command_exit;
      }
    }
    /* If a filename is specified, try to open it first */
................................................................................
#ifdef SQLITE_ENABLE_MULTIPLEX
  "   -multiplex           enable the multiplexor VFS\n"
#endif
  "   -newline SEP         set output row separator. Default: '\\n'\n"
  "   -nullvalue TEXT      set text string for NULL values. Default ''\n"
  "   -pagecache SIZE N    use N slots of SZ bytes each for page cache memory\n"
  "   -quote               set output mode to 'quote'\n"
  "   -readonly            open the database read-only\n"
  "   -separator SEP       set output column separator. Default: '|'\n"
  "   -stats               print memory stats before each finalize\n"
  "   -version             show SQLite version\n"
  "   -vfs NAME            use NAME as the default VFS\n"
#ifdef SQLITE_ENABLE_VFSTRACE
  "   -vfstrace            enable tracing of all VFS calls\n"
#endif
................................................................................
      }
#ifdef SQLITE_HAVE_ZIP
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;
    }else if( strcmp(z,"-readonly")==0 ){
      data.openMode = SHELL_OPEN_READONLY;
    }
  }
  if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
    data.zDbFilename = ":memory:";
    warnInmemoryDb = argc==1;
#else