src/pacman/downloadprog.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165

/*
 *  downloadprog.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 <libintl.h>
#include <math.h>

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

/* progress bar */
static float rate_last;
static int xfered_last;
static struct timeval initial_time;

/* pacman options */
extern config_t *config;

#define FILENAME_TRIM_LEN 23

void log_progress(const char *filename, int xfered, int total)
{
  const int infolen = 50;
  char *fname, *p; 

  float rate = 0.0, timediff = 0.0, f_xfered = 0.0;
  unsigned int eta_h = 0, eta_m = 0, eta_s = 0;
  int percent;
  char rate_size = 'K', xfered_size = 'K';

  if(config->noprogressbar) {
    return;
  }

  /* XXX: big fat hack: due to the fact that we switch out printf/pm_fprintf,
   * not everything honors our 'neednl' newline hackery.  This forces a newline
   * if we need one before drawing the progress bar */
  MSG(NL,NULL);

  /* this is basically a switch on xferred: 0, total, and anything else */
  if(xfered == 0) {
    /* set default starting values */
    gettimeofday(&initial_time, NULL);
    xfered_last = 0;
    rate_last = 0.0;
    timediff = get_update_timediff(1);
    rate = 0.0;
    eta_s = 0;
    set_output_padding(1); /* we need padding from pm_fprintf output */
  } else if(xfered == total) {
    /* compute final values */
    struct timeval current_time;
    float diff_sec, diff_usec;
    
    gettimeofday(&current_time, NULL);
    diff_sec = current_time.tv_sec - initial_time.tv_sec;
    diff_usec = current_time.tv_usec - initial_time.tv_usec;
    timediff = diff_sec + (diff_usec / 1000000.0);
    rate = (float)total / (timediff * 1024.0);

    /* round elapsed time to the nearest second */
    eta_s = (int)floorf(timediff + 0.5);

    set_output_padding(0); /* shut off padding */
  } else {
    /* compute current average values */
    timediff = get_update_timediff(0);

    if(timediff < UPDATE_SPEED_SEC) {
      /* return if the calling interval was too short */
      return;
    }
    rate = (float)(xfered - xfered_last) / (timediff * 1024.0);
    /* average rate to reduce jumpiness */
    rate = (float)(rate + 2*rate_last) / 3;
    eta_s = (unsigned int)(total - xfered) / (rate * 1024.0);
    rate_last = rate;
    xfered_last = xfered;
  }

  percent = (int)((float)xfered) / ((float)total) * 100;

  /* fix up time for display */
  eta_h = eta_s / 3600;
  eta_s -= eta_h * 3600;
  eta_m = eta_s / 60;
  eta_s -= eta_m * 60;

  fname = strdup(filename);
  /* strip extension if it's there
   * NOTE: in the case of package files, only the pkgname is sent now */
  if((p = strstr(fname, PM_EXT_PKG)) || (p = strstr(fname, PM_EXT_DB))) {
      *p = '\0';
  }
  if(strlen(fname) > FILENAME_TRIM_LEN) {
    strcpy(fname + FILENAME_TRIM_LEN -3,"...");
  }

  /* Awesome formatting for progress bar.  We need a mess of Kb->Mb->Gb stuff
   * here. We'll use limit of 2048 for each until we get some empirical */
  /* rate_size = 'K'; was set above */
  if(rate > 2048.0) {
    rate /= 1024.0;
    rate_size = 'M';
    if(rate > 2048.0) {
      rate /= 1024.0;
      rate_size = 'G';
      /* we should not go higher than this for a few years (9999.9 Gb/s?)*/
    }
  }

  f_xfered = (float) xfered / 1024.0; /* convert to K by default */
  /* xfered_size = 'K'; was set above */
  if(f_xfered > 2048.0) {
    f_xfered /= 1024.0;
    xfered_size = 'M';
    if(f_xfered > 2048.0) {
      f_xfered /= 1024.0;
      xfered_size = 'G';
      /* I should seriously hope that archlinux packages never break
       * the 9999.9GB mark... we'd have more serious problems than the progress
       * bar in pacman */ 
    }
  }

  printf(" %-*s %6.1f%c %#6.1f%c/s %02u:%02u:%02u", FILENAME_TRIM_LEN, fname, 
         f_xfered, xfered_size, rate, rate_size, eta_h, eta_m, eta_s);

  free(fname);
  
  fill_progress(percent, getcols() - infolen);
  return;
}

/* vim: set ts=2 sw=2 noet: */