/* The --verily option to sync, push, and pull forces extra igot cards
    ** to be exchanged.  This can overcome malfunctions in the sync protocol.
    */
    if( find_option("verily",0,0)!=0 ){
      *pSyncFlags |= SYNC_RESYNC;
    }
  }



  if( find_option("private",0,0)!=0 ){
    *pSyncFlags |= SYNC_PRIVATE;
  }
  if( find_option("verbose","v",0)!=0 ){
    *pSyncFlags |= SYNC_VERBOSE;
  }
  url_proxy_options();

**   --ipv4                     Use only IPv4, not IPv6
**   --once                     Do not remember URL for subsequent syncs
**   --proxy PROXY              Use the specified HTTP proxy
**   --private                  Sync private branches too
**   -R|--repository REPO       Repository to pull into
**   --ssl-identity FILE        Local SSL credentials, if requested by remote
**   --ssh-command SSH          Use SSH as the "ssh" command
**   -u|--unversioned           Also sync unversioned content
**   -v|--verbose               Additional (debugging) output
**   --verily                   Exchange extra information with the remote
**                              to ensure no content is overlooked
**
** See also: clone, pull, push, remote-url
*/
void sync_cmd(void){
  unsigned configFlags = 0;
  unsigned syncFlags = SYNC_PUSH|SYNC_PULL;
  if( find_option("unversioned","u",0)!=0 ){
    syncFlags |= SYNC_UNVERSIONED;
  }
  process_sync_args(&configFlags, &syncFlags, 0);

  /* We should be done with options.. */
  verify_all_options();

  if( db_get_boolean("dont-push",0) ) syncFlags &= ~SYNC_PUSH;
  client_sync(syncFlags, configFlags, 0);
  if( (syncFlags & SYNC_PUSH)==0 ){
    fossil_warning("pull only: the 'dont-push' option is set");
  }
}

/*
** Handle the "fossil unversioned sync" and "fossil unversioned revert"
** commands.
*/
void sync_unversioned(unsigned syncFlags){
  unsigned configFlags = 0;

  (void)find_option("uv-noop",0,0);
  process_sync_args(&configFlags, &syncFlags, 1);
  verify_all_options();
  client_sync(syncFlags, 0, 0);
}

/*
** COMMAND: remote-url

           db_column_text(&q,4),
           zNoContent
        );
      }
    }
    db_finalize(&q);
  }else if( memcmp(zCmd, "revert", nCmd)==0 ){
    g.argv[1] = "sync";
    g.argv[2] = "--uv-noop";
    sync_unversioned(SYNC_UNVERSIONED|SYNC_UV_REVERT);
  }else if( memcmp(zCmd, "rm", nCmd)==0 ){
    int i;
    verify_all_options();
    db_begin_transaction();
    for(i=3; i<g.argc; i++){
      db_multi_exec(
        "UPDATE unversioned"
        "   SET hash=NULL, content=NULL, mtime=%lld, sz=0 WHERE name=%Q",
        mtime, g.argv[i]
      );
    }
    db_unset("uv-hash", 0);
    db_end_transaction(0);
  }else if( memcmp(zCmd,"sync",nCmd)==0 ){
    g.argv[1] = "sync";
    g.argv[2] = "--uv-noop";
    sync_unversioned(SYNC_UNVERSIONED);
  }else if( memcmp(zCmd, "touch", nCmd)==0 ){
    int i;
    verify_all_options();
    db_begin_transaction();
    for(i=3; i<g.argc; i++){
      db_multi_exec(
        "UPDATE unversioned SET mtime=%lld WHERE name=%Q",

static const char zBriefFormat[] =
   "Round-trips: %d   Artifacts sent: %d  received: %d\r";

#if INTERFACE
/*
** Flag options for controlling client_sync()
*/
#define SYNC_PUSH           0x0001    /* push content client to server */
#define SYNC_PULL           0x0002    /* pull content server to client */
#define SYNC_CLONE          0x0004    /* clone the repository */
#define SYNC_PRIVATE        0x0008    /* Also transfer private content */
#define SYNC_VERBOSE        0x0010    /* Extra diagnostics */
#define SYNC_RESYNC         0x0020    /* --verily */
#define SYNC_UNVERSIONED    0x0040    /* Sync unversioned content */
#define SYNC_UV_REVERT      0x0080    /* Copy server unversioned to client */
#define SYNC_FROMPARENT     0x0100    /* Pull from the parent project */
#endif

/*
** Floating-point absolute value
*/
static double fossil_fabs(double x){
  return x>0.0 ? x : -x;

  if( syncFlags & SYNC_PRIVATE ){
    blob_append(&send, "pragma send-private\n", -1);
  }

  /* When syncing unversioned files, create a TEMP table in which to store
  ** the names of files that do not need to be sent from client to server.
  */
  if( (syncFlags & SYNC_UNVERSIONED)!=0 ){
    db_multi_exec(
       "CREATE TEMP TABLE uv_tosend("
       "  name TEXT PRIMARY KEY,"
       "  mtimeOnly BOOLEAN"
       ") WITHOUT ROWID;"
       "INSERT INTO uv_toSend(name,mtimeOnly)"
       "  SELECT name, 0 FROM unversioned WHERE hash IS NOT NULL;"

        nCardSent += configure_send_group(xfer.pOut, configSendMask, 0);
      }
      configSendMask = 0;
    }

    /* Send unversioned files present here on the client but missing or
    ** obsolete on the server.
    **
    ** Or, if the SYNC_UV_REVERT flag is set, delete the local unversioned
    ** files that do not exist on the server.
    */
    if( uvDoPush ){


      assert( (syncFlags & SYNC_UNVERSIONED)!=0 );
      assert( uvStatus==2 );
      if( syncFlags & SYNC_UV_REVERT ){
        db_multi_exec(
          "DELETE FROM unversioned"
          " WHERE name IN (SELECT name FROM uv_tosend);"
          "DELETE FROM uv_tosend;"
        );
        uvDoPush = 0;
      }else{
        Stmt uvq;
        int rc = SQLITE_OK;
        db_prepare(&uvq, "SELECT name, mtimeOnly FROM uv_tosend");
        while( (rc = db_step(&uvq))==SQLITE_ROW ){
          const char *zName = db_column_text(&uvq, 0);
          send_unversioned_file(&xfer, zName, db_column_int(&uvq,1));
          nCardSent++;
          nArtifactSent++;
          db_multi_exec("DELETE FROM uv_tosend WHERE name=%Q", zName);
          if( syncFlags & SYNC_VERBOSE ){
            fossil_print("\rUnversioned-file sent: %s\n", zName);
          }
          if( blob_size(xfer.pOut)>xfer.mxSend ) break;
        }
        db_finalize(&uvq);
        if( rc==SQLITE_DONE ) uvDoPush = 0;
      }
    }

    /* Append randomness to the end of the message.  This makes all
    ** messages unique so that that the login-card nonce will always
    ** be unique.
    */
    zRandomness = db_text(0, "SELECT hex(randomblob(20))");

      **
      ** Accept an unversioned file from the client.
      */
      if( blob_eq(&xfer.aToken[0], "uvfile") ){
        xfer_accept_unversioned_file(&xfer, 1);
        nArtifactRcvd++;
        nUvFileRcvd++;
        if( syncFlags & SYNC_VERBOSE ){
          fossil_print("\rUnversioned-file received: %s\n",
                       blob_str(&xfer.aToken[1]));
        }
      }else

      /*   gimme UUID
      **
      ** Server is requesting a file.  If the file is a manifest, assume
      ** that the server will also want to know all of the content files
      ** associated with the manifest and send those too.

       && (blob_eq(&xfer.aToken[3],"-") || blob_is_uuid(&xfer.aToken[3]))
      ){
        const char *zName = blob_str(&xfer.aToken[1]);
        const char *zHash = blob_str(&xfer.aToken[3]);
        int iStatus;
        if( uvStatus==0 ) uvStatus = 2;
        iStatus = unversioned_status(zName, mtime, zHash);
        if( (syncFlags & SYNC_UV_REVERT)!=0 && iStatus==4 ) iStatus = 2;
        if( iStatus<=1 ){
          if( zHash[0]!='-' ){
            blob_appendf(xfer.pOut, "uvgimme %s\n", zName);
            nCardSent++;
            nUvGimmeSent++;
          }else if( iStatus==1 ){
            db_multi_exec(

        ** this client lacks the necessary permissions) then it sends a
        ** "uv-pull-only" pragma so that the client will know not to waste
        ** bandwidth trying to upload unversioned content.  If the server
        ** does accept new unversioned content, it sends "uv-push-ok".
        */
        if( blob_eq(&xfer.aToken[1], "uv-pull-only") ){
          uvStatus = 1;
          if( syncFlags & SYNC_UV_REVERT ) uvDoPush = 1;
        }else if( blob_eq(&xfer.aToken[1], "uv-push-ok") ){
          uvStatus = 2;
          uvDoPush = 1;
        }
      }else

      /*   error MESSAGE