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/*
* hbar
*
* create a horizontal progres bar across the screen
*/
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
#include <getopt.h>
#include "colors.h"
#define DEFAULT_COLOR BLACK BG_WHITE
#define DEFAULT_RESET WHITE BG_DEFAULT
#define SAVE_POS "\033[s"
#define LOAD_POS "\033[u"
static void human_format(int bytes, char *output) {
char *suffix[] = {"B", "KB", "MB", "GB", "TB"};
char length = sizeof(suffix) / sizeof(suffix[0]);
int i = 0;
double dblBytes = bytes;
if (bytes > 1024) {
for (i = 0; (bytes / 1024) > 0 && i<length-1; i++, bytes /= 1024)
dblBytes = bytes / 1024.0;
}
sprintf(output, "%.0lf%s", dblBytes, suffix[i]);
}
int main (int argc, char **argv) {
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
int width = w.ws_col;
char *text = "";
char *unit = "";
int total = 0;
int completed = 0;
int line = 0;
bool terminate = false;
bool human = false;
char *color = DEFAULT_COLOR;
char *reset = DEFAULT_RESET;
int opt;
int option_index = 0;
const char *optstring = "T:u:c:r:l:th";
static const struct option opts[] = {
{"text", required_argument, 0, 'T'},
{"unit", optional_argument, 0, 'u'},
{"color", optional_argument, 0, 'c'},
{"reset", optional_argument, 0, 'r'},
{"line", optional_argument, 0, 'l'},
{"terminate", no_argument, 0, 't'},
{"human-readable", no_argument, 0, 'h'}
};
while ((opt = getopt_long(argc, argv, optstring, opts, &option_index)) != -1) {
switch (opt) {
case 'T':
text = optarg;
break;
case 'c':
color = optarg;
break;
case 'r':
reset = optarg;
break;
case 'u':
unit = optarg;
break;
case 't':
terminate = true;
break;
case 'h':
human = true;
break;
case 'l':
line = atoi(optarg);
break;
}
}
if (argc < optind + 2) {
printf(RESET "\n");
return 1;
}
completed = atoi(argv[optind]);
total = atoi(argv[optind+1]);
if (line != -1) {
printf("\033[%dA", line, 0);
}
char *count = malloc(width);
if (human) {
// i suck at these
char *c = malloc(width);
char *t = malloc(width);
human_format(completed, c);
human_format(total, t);
sprintf(count, "[%s%s/%s%s]", c, unit, t, unit);
} else {
sprintf(count, "[%d%s/%d%s]", completed, unit, total, unit);
}
printf(RESET "\r");
printf(color);
for (int i = 0; i < width; i++) {
int reset_at = 0;
if (total > 0) {
float percent = (float) completed / (float) total;
reset_at = percent * width;
}
if (i == reset_at) {
printf(reset);
}
if (text && i < strlen(text)) {
printf("%c", text[i]);
} else if (i + 1 > width - strlen(count)) {
printf("%c", count[i - width + strlen(count)]);
} else {
printf(" ");
}
}
if (line != -1) {
printf("\033[%dB", line, 0);
}
if (terminate) {
printf(RESET "\n");
}
return 0;
}
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