Fossil

/*
** An single SQL statement is represented as an instance of the following
** structure.
*/
struct Stmt {
  Blob sql;               /* The SQL for this statement */
  sqlite3_stmt *pStmt;    /* The results of sqlite3_prepare() */
  Stmt *pNext, *pPrev;    /* List of all unfinalized statements */
};
#endif /* INTERFACE */

/*
** Call this routine when a database error occurs.
*/
static void db_err(const char *zFormat, ...){

static int isNewRepo = 0;   /* True if the repository is newly created */
static int doRollback = 0;  /* True to force a rollback */
static int nCommitHook = 0; /* Number of commit hooks */
static struct sCommitHook {
  int (*xHook)(void);  /* Functions to call at db_end_transaction() */
  int sequence;        /* Call functions in sequence order */
} aHook[5];
static Stmt *pAllStmt = 0;  /* List of all unfinalized statements */

/*
** This routine is called by the SQLite commit-hook mechanism
** just prior to each omit.  All this routine does is verify
** that nBegin really is zero.  That insures that transactions
** cannot commit by any means other than by calling db_end_transaction()
** below.

    }
  }
  aHook[nCommitHook].sequence = sequence;
  aHook[nCommitHook].xHook = x;
  nCommitHook++;
}
















/*
** Prepare a Stmt.  Assume that the Stmt is previously uninitialized.
** If the input string contains multiple SQL statements, only the first
** one is processed.  All statements beyond the first are silently ignored.
*/
int db_vprepare(Stmt *pStmt, const char *zFormat, va_list ap){
  char *zSql;
  blob_zero(&pStmt->sql);
  blob_vappendf(&pStmt->sql, zFormat, ap);
  va_end(ap);
  zSql = blob_str(&pStmt->sql);
  if( sqlite3_prepare_v2(g.db, zSql, -1, &pStmt->pStmt, 0)!=0 ){
    db_err("%s\n%s", zSql, sqlite3_errmsg(g.db));
  }
  pStmt->pNext = pStmt->pPrev = 0;
  return 0;
}
int db_prepare(Stmt *pStmt, const char *zFormat, ...){
  int rc;
  va_list ap;
  va_start(ap, zFormat);
  rc = db_vprepare(pStmt, zFormat, ap);
  va_end(ap);
  return rc;
}
int db_static_prepare(Stmt *pStmt, const char *zFormat, ...){
  int rc = SQLITE_OK;
  if( blob_size(&pStmt->sql)==0 ){
    va_list ap;
    va_start(ap, zFormat);
    rc = db_vprepare(pStmt, zFormat, ap);
    pStmt->pNext = pAllStmt;
    pStmt->pPrev = 0;
    if( pAllStmt ) pAllStmt->pPrev = pStmt;
    pAllStmt = pStmt;
    va_end(ap);
  }
  return rc;
}

/*
** Return the index of a bind parameter

}

/*
** Step the SQL statement.  Return either SQLITE_ROW or an error code
** or SQLITE_OK if the statement finishes successfully.
*/
int db_step(Stmt *pStmt){
  int rc;


  rc = sqlite3_step(pStmt->pStmt);









  return rc;
}

/*
** Reset or finalize a statement.
*/
int db_reset(Stmt *pStmt){
  int rc = sqlite3_reset(pStmt->pStmt);
  db_check_result(rc);
  return rc;
}
int db_finalize(Stmt *pStmt){
  int rc;
  blob_reset(&pStmt->sql);
  rc = sqlite3_finalize(pStmt->pStmt);
  db_check_result(rc);
  pStmt->pStmt = 0;
  if( pStmt->pNext ){
    pStmt->pNext->pPrev = pStmt->pPrev;
  }
  if( pStmt->pPrev ){
    pStmt->pPrev->pNext = pStmt->pNext;
  }else if( pAllStmt==pStmt ){
    pAllStmt = pStmt->pNext;
  }
  pStmt->pNext = 0;
  pStmt->pPrev = 0;
  return rc;
}

/*
** Return the rowid of the most recent insert
*/
i64 db_last_insert_rowid(void){

}

/*
** Close the database connection.
*/
void db_close(void){
  if( g.db==0 ) return;
  while( pAllStmt ){
    db_finalize(pAllStmt);
  }
  g.repositoryOpen = 0;
  g.localOpen = 0;
  g.configOpen = 0;
  sqlite3_close(g.db);
  g.db = 0;
}

/*
** Variables used for progress information
*/
static int totalSize;       /* Total number of artifacts to process */
static int processCnt;      /* Number processed so far */
static int ttyOutput;       /* Do progress output */
static Bag bagDone;         /* Bag of records rebuilt */

/*
** Called after each artifact is processed
*/
static void rebuild_step_done(rid){
  assert( bag_find(&bagDone, rid)==0 );
  bag_insert(&bagDone, rid);
  if( ttyOutput ){
    processCnt++;
    printf("%d (%d%%)...\r", processCnt, (processCnt*100/totalSize));
    fflush(stdout);
  }
}

    );
  }

  /* Find all children of artifact rid */
  db_prepare(&q1, "SELECT rid FROM delta WHERE srcid=%d", rid);
  bag_init(&children);
  while( db_step(&q1)==SQLITE_ROW ){
    int cid = db_column_int(&q1, 0);
    if( !bag_find(&bagDone, cid) ){
      bag_insert(&children, cid);
    }
  }
  nChild = bag_count(&children);
  db_finalize(&q1);

  /* Crosslink the artifact */
  if( nChild==0 ){
    pUse = pBase;

      rebuild_step(cid, sz, pUse);
    }else{
      db_finalize(&q2);
      blob_reset(pUse);
    }
  }
  bag_clear(&children);
  rebuild_step_done(rid);
}

/*
** Core function to rebuild the infomration in the derived tables of a
** fossil repository from the blobs. This function is shared between
** 'rebuild_database' ('rebuild') and 'reconstruct_cmd'
** ('reconstruct'), both of which have to regenerate this information
** from scratch.
**
** If the randomize parameter is true, then the BLOBs are deliberately
** extracted in a random order.  This feature is used to test the
** ability of fossil to accept records in any order and still
** construct a sane repository.
*/
int rebuild_db(int randomize, int doOut){
  Stmt s;
  int errCnt = 0;
  char *zTable;

  bag_init(&bagDone);
  ttyOutput = doOut;
  processCnt = 0;
  db_multi_exec(zSchemaUpdates);
  for(;;){
    zTable = db_text(0,
       "SELECT name FROM sqlite_master"
       " WHERE type='table'"

  while( db_step(&s)==SQLITE_ROW ){
    int rid = db_column_int(&s, 0);
    int size = db_column_int(&s, 1);
    if( size>=0 ){
      Blob content;
      content_get(rid, &content);
      rebuild_step(rid, size, &content);
    }
  }
  db_finalize(&s);
  db_prepare(&s,
     "SELECT rid, size FROM blob"
     " WHERE NOT EXISTS(SELECT 1 FROM shun WHERE uuid=blob.uuid)"
  );
  while( db_step(&s)==SQLITE_ROW ){
    int rid = db_column_int(&s, 0);
    int size = db_column_int(&s, 1);
    if( size>=0 ){
      if( !bag_find(&bagDone, rid) ){
        Blob content;
        content_get(rid, &content);
        rebuild_step(rid, size, &content);
      }
    }else{
      db_multi_exec("INSERT OR IGNORE INTO phantom VALUES(%d)", rid);
      rebuild_step_done(rid);
    }
  }
  db_finalize(&s);
  if( ttyOutput ){
    printf("\n");
  }
  return errCnt;