Artifact 6ab5a0bcde231e1433cac7413a824d9504e550c5

File src/rebuild.c part of check-in [eea381f416] - Progress toward delta compression on the xfer protocol. The compression works well. But the client is not telling the server what files it has so the server does not have anything to delta against. by drh on 2007-08-09 03:19:18.

/*
** Copyright (c) 2007 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public
** License version 2 as published by the Free Software Foundation.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
** General Public License for more details.
** 
** You should have received a copy of the GNU General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA  02111-1307, USA.
**
** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file contains code used to rebuild the database.
*/
#include "config.h"
#include "rebuild.h"
#include <assert.h>


/*
** COMMAND:  rebuild
**
** Reconstruct the entire repository database from the core
** records.  Run this command after updating the fossil
** executable in a way that changes the database schema.
*/
void rebuild_database(void){
  Stmt s;
  int errCnt;
  int forceFlag;
  char *zTable;

  forceFlag = find_option("force","f",0)!=0;
  if( g.argc!=3 ){
    usage("REPOSITORY-FILENAME");
  }
  errCnt = 0;
  db_open_repository(g.argv[2]);
  db_begin_transaction();
  db_multi_exec(
    "CREATE INDEX IF NOT EXISTS delta_i1 ON delta(srcid);"
  );
  for(;;){
    zTable = db_text(0,
       "SELECT name FROM sqlite_master"
       " WHERE type='table'"
       " AND name NOT IN ('blob','delta','rcvfrom','user','config')");
    if( zTable==0 ) break;
    db_multi_exec("DROP TABLE %Q", zTable);
    free(zTable);
  }
  db_multi_exec(zRepositorySchema2);

  db_prepare(&s, "SELECT rid FROM blob");
  while( db_step(&s)==SQLITE_ROW ){
    int rid = db_column_int(&s, 0);
    Blob content;
    content_get(rid, &content);
    manifest_crosslink(rid, &content);
    blob_reset(&content);
  }

  if( errCnt && !forceFlag ){
    printf("%d errors. Rolling back changes. Use --force to force a commit.\n",
            errCnt);
    db_end_transaction(1);
  }else{
    db_end_transaction(0);
  }
}