Fossil

** Impl of /json/dir. 98% of it was taken directly
** from browse.c::page_dir()
*/
static cson_value * json_page_dir_list(){
  cson_object * zPayload = NULL;
  cson_array * zEntries = NULL;
  cson_object * zEntry = NULL;
  cson_array * keyStore = NULL;
  cson_string * zKeyName = NULL;
  cson_string * zKeySize = NULL;
  cson_string * zKeyIsDir = NULL;
  cson_string * zKeyUuid = NULL;
  cson_string * zKeyTime = NULL;
  char * zD = NULL;
  char const * zDX = NULL;
  int nD;
  char * zUuid = NULL;
  char const * zCI = NULL;
  Manifest * pM = NULL;
  Stmt q = empty_Stmt;

  ** of all files and subdirectories in the zD[] directory.  
  **
  ** Subdirectory names begin with "/".  This causes them to sort
  ** first and it also gives us an easy way to distinguish files
  ** from directories in the loop that follows.
  */
  db_multi_exec(
     "CREATE TEMP TABLE json_dir_files(n UNIQUE NOT NULL %s, u, sz, mtime DEFAULT NULL);",
     filename_collation()
  );

  if( zCI ){
    Stmt ins;
    ManifestFile *pFile;
    ManifestFile *pPrev = 0;
    int nPrev = 0;
    int c;

    db_prepare(&ins,
               "INSERT OR IGNORE INTO json_dir_files (n,u,sz,mtime) "
               "SELECT"
               "  pathelement(:path,0),"
               "  a.uuid,"
               "  a.size,"
               "  CAST(strftime('%%s',e.mtime) AS INTEGER) "
               "FROM"
               "  mlink m, "
               "  event e,"
               "  blob a,"
               "  blob b "
               "WHERE"
               " e.objid=m.mid"
               " AND a.rid=m.fid"/*FILE artifact*/
               " AND b.rid=m.mid"/*CHECKIN artifact*/
               " AND a.uuid=:uuid"
               );
    manifest_file_rewind(pM);
    while( (pFile = manifest_file_next(pM,0))!=0 ){
      if( nD>0 
        && ((pFile->zName[nD-1]!='/') || (0!=memcmp(pFile->zName, zD, nD-1)))
      ){
        continue;
      }
      /*printf("zD=%s, nD=%d, pFile->zName=%s\n", zD, nD, pFile->zName);*/
      if( pPrev
       && memcmp(&pFile->zName[nD],&pPrev->zName[nD],nPrev)==0
       && (pFile->zName[nD+nPrev]==0 || pFile->zName[nD+nPrev]=='/')
      ){
        continue;
      }
      db_bind_text( &ins, ":path", &pFile->zName[nD] );
      db_bind_text( &ins, ":uuid", pFile->zUuid );


      db_step(&ins);
      db_reset(&ins);
      pPrev = pFile;
      for(nPrev=0; (c=pPrev->zName[nD+nPrev]) && c!='/'; nPrev++){}
      if( c=='/' ) nPrev++;
    }
    db_finalize(&ins);
  }else if( zD && *zD ){
    if( filenames_are_case_sensitive() ){
      db_multi_exec(
        "INSERT OR IGNORE INTO json_dir_files"
        " SELECT pathelement(name,%d), NULL, NULL, NULL FROM filename"
        "  WHERE name GLOB '%q/*'",
        nD, zD
      );
    }else{
      db_multi_exec(
        "INSERT OR IGNORE INTO json_dir_files"
        " SELECT pathelement(name,%d), NULL, NULL, NULL FROM filename"
        "  WHERE name LIKE '%q/%%'",
        nD, zD
      );
    }
  }else{
    db_multi_exec(
      "INSERT OR IGNORE INTO json_dir_files"
      " SELECT pathelement(name,0), NULL, NULL, NULL FROM filename"
    );
  }

  if(zCI){
    db_prepare( &q, "SELECT"
                "  n as name,"
                "  u as uuid,"
                "  sz as size,"
                "  mtime as mtime "
                "FROM json_dir_files ORDER BY n");
  }else{/* UUIDs are all NULL. */
    db_prepare( &q, "SELECT n as name FROM json_dir_files ORDER BY n");
  }

  zKeyName = cson_new_string("name",4);

  zKeyUuid = cson_new_string("uuid",4);

  zKeyIsDir = cson_new_string("isDir",5);
  keyStore = cson_new_array();
  cson_array_append( keyStore, cson_string_value(zKeyName) );
  cson_array_append( keyStore, cson_string_value(zKeyUuid) );
  cson_array_append( keyStore, cson_string_value(zKeyIsDir) );

  if( zCI ){
    zKeySize = cson_new_string("size",4);
    cson_array_append( keyStore, cson_string_value(zKeySize) );
    zKeyTime = cson_new_string("timestamp",9);
    cson_array_append( keyStore, cson_string_value(zKeyTime) );
  }

  zPayload = cson_new_object();
  cson_object_set_s( zPayload, zKeyName,
                     json_new_string((zD&&*zD) ? zD : "/") );






  if( zUuid ){
    cson_object_set( zPayload, "checkin", json_new_string(zUuid) );
  }

  while( (SQLITE_ROW==db_step(&q)) ){
    cson_value * name = NULL;
    char const * n = db_column_text(&q,0);

         one of the files in that directory :/. Entries with no
         --checkin may refer to N versions, and therefore we cannot
         associate a single size and uuid with them (and fetching all
         would be overkill for most use cases).
      */
      char const * u = db_column_text(&q,1);
      sqlite_int64 const sz = db_column_int64(&q,2);
      sqlite_int64 const ts = db_column_int64(&q,3);
      cson_object_set_s(zEntry, zKeyUuid, json_new_string( u ) );
      cson_object_set_s(zEntry, zKeySize,
                        cson_value_new_integer( (cson_int_t)sz ));
      cson_object_set_s(zEntry, zKeyTime,
          cson_value_new_integer( (cson_int_t)ts ));
    }
  }
  db_finalize(&q);
  if(pM){
    manifest_destroy(pM);
  }
  cson_free_array( keyStore );



  
  free( zUuid );
  free( zD );
  return cson_object_value(zPayload);
}

/*