src/pacman/download.c


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/*
 *  download.c
 * 
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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 program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#include "config.h"
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#include <ftplib.h>
#include <libintl.h>

#include <alpm.h>
/* pacman */
#include "util.h"
#include "log.h"
#include "list.h"
#include "download.h"
#include "conf.h"

/* progress bar */
char sync_fnm[PM_DLFNM_LEN+1];
int offset;
struct timeval t0, t;
float rate;
int xfered1;
unsigned int eta_h, eta_m, eta_s;

/* pacman options */
extern config_t *config;

extern unsigned int maxcols;

int log_progress(netbuf *ctl, int xfered, void *arg)
{
  int fsz = *(int*)arg;
  int pct = ((float)(xfered+offset) / fsz) * 100;
  static int lastpct=0;
  unsigned int i, cur;
  struct timeval t1;
  float timediff;
  /* a little hard to conceal easter eggs in open-source software, but
   * they're still fun.  ;)
   */
  int chomp;
  static unsigned short mouth;
  static unsigned int   lastcur = 0;

  /* we don't need that parameter */
  ctl=NULL;

  if(config->noprogressbar || (pct == 100 && lastpct == 100)) {
    return(1);
  }

  alpm_get_option(PM_OPT_CHOMP, (long *)&chomp);

  gettimeofday(&t1, NULL);
  if(xfered+offset == fsz) {
    t = t0;
  }
  timediff = t1.tv_sec-t.tv_sec + (float)(t1.tv_usec-t.tv_usec) / 1000000;

  if(xfered+offset == fsz) {
    /* average download rate */
    rate = xfered / (timediff * 1024);
    /* total download time */
    eta_s = (int)timediff;
    eta_h = eta_s / 3600;
    eta_s -= eta_h * 3600;
    eta_m = eta_s / 60;
    eta_s -= eta_m * 60;
  } else if(timediff > 1) {
    /* we avoid computing the rate & ETA on too small periods of time, so that
       results are more significant */
    rate = (xfered-xfered1) / (timediff * 1024);
    xfered1 = xfered;
    gettimeofday(&t, NULL);
    eta_s = (fsz-(xfered+offset)) / (rate * 1024);
    eta_h = eta_s / 3600;
    eta_s -= eta_h * 3600;
    eta_m = eta_s / 60;
    eta_s -= eta_m * 60;
  }

  if(rate > 1000) {
    printf("%*s %6dK %6.0fK/s %02d:%02d:%02d [", PM_DLFNM_LEN, sync_fnm, ((xfered+offset) / 1024), rate, eta_h, eta_m, eta_s);
  } else {
    printf("%*s %6dK %6.1fK/s %02d:%02d:%02d [", PM_DLFNM_LEN, sync_fnm, ((xfered+offset) / 1024), rate, eta_h, eta_m, eta_s);
  }
  cur = (int)((maxcols-57)*pct/100);
  for(i = 0; i < maxcols-57; i++) {
    if(chomp) {
      if(i < cur) {
        printf("-");
      } else {
        if(i == cur) {
          if(lastcur == cur) {
            if(mouth) {
              printf("\033[1;33mC\033[m");
            } else {
              printf("\033[1;33mc\033[m");
            }
          } else {
            mouth = mouth == 1 ? 0 : 1;
            if(mouth) {
              printf("\033[1;33mC\033[m");
            } else {
              printf("\033[1;33mc\033[m");
            }
          }
        } else {
          printf("\033[0;37m*\033[m");
        }
      }
    } else {
      (i < cur) ? printf("#") : printf(" ");
    }
  }
  printf("] %3d%%\r", pct);
  if(lastpct != 100 && pct == 100) {
    printf("\n");
  }
  lastcur = cur;
  lastpct = pct;
  fflush(stdout);
  return(1);
}

/* vim: set ts=2 sw=2 noet: */