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Add a utility function to humanize sizes

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Converts the given size in bytes in two possible ways:
1) target_unit is specified (!= 0): size is converted to target unit.
2) target_unit is not specified (== '\0'): size is converted to the first
   unit which will bring size to below 2048.

If specified, label will point to the long label ('MB') if long_labels is
set or the short label ('M') if it is not.

Dan: use '\0' rather than 0 for the special value as a matter of coding
style for char variables.

Signed-off-by: Jakob Gruber <jakob.gruber@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Jakob Gruber 2011-02-20 19:38:32 +01:00 committed by Dan McGee
parent dcb6fb224d
commit 3c8a448a2f
4 changed files with 68 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
src/pacman/callback.c
View File

@ -492,10 +492,11 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
int totaldownload = 0;
off_t xfered, total;
double rate = 0.0, timediff = 0.0, f_xfered = 0.0;
double rate = 0.0, timediff = 0.0;
unsigned int eta_h = 0, eta_m = 0, eta_s = 0;
double rate_human, xfered_human;
const char *rate_label, *xfered_label;
int file_percent = 0, total_percent = 0;
char rate_size = 'K', xfered_size = 'K';
if(config->noprogressbar || file_total == -1) {
if(file_xfered == 0) {
@ -557,7 +558,7 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
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 = xfered / (timediff * 1024.0);
rate = xfered / timediff;
/* round elapsed time to the nearest second */
eta_s = (int)(timediff + 0.5);
@ -569,10 +570,10 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
/* return if the calling interval was too short */
return;
}
rate = (xfered - xfered_last) / (timediff * 1024.0);
rate = (xfered - xfered_last) / timediff;
/* average rate to reduce jumpiness */
rate = (rate + 2 * rate_last) / 3;
eta_s = (total - xfered) / (rate * 1024.0);
eta_s = (total - xfered) / rate;
rate_last = rate;
xfered_last = xfered;
}
@ -626,37 +627,13 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
}
/* 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 = 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 */
}
}
rate_human = humanize_size((off_t)rate, '\0', 0, &rate_label);
xfered_human = humanize_size(xfered, '\0', 0, &xfered_label);
/* 1 space + filenamelen + 1 space + 7 for size + 1 + 7 for rate + 2 for /s + 1 space + 8 for eta */
printf(" %ls%-*s %6.1f%c %#6.1f%c/s %02u:%02u:%02u", wcfname,
padwid, "", f_xfered, xfered_size,
rate, rate_size, eta_h, eta_m, eta_s);
printf(" %ls%-*s %6.1f%s %#6.1f%s/s %02u:%02u:%02u", wcfname,
padwid, "", xfered_human, xfered_label, rate_human, rate_label,
eta_h, eta_m, eta_s);
free(fname);
free(wcfname);

18
src/pacman/package.c
View File

@ -51,6 +51,8 @@ void dump_pkg_full(pmpkg_t *pkg, int level)
const char *reason;
time_t bdate, idate;
char bdatestr[50] = "", idatestr[50] = "";
const char *label;
double size;
const alpm_list_t *i;
alpm_list_t *requiredby = NULL, *depstrings = NULL;
@ -105,17 +107,17 @@ void dump_pkg_full(pmpkg_t *pkg, int level)
}
list_display(_("Conflicts With :"), alpm_pkg_get_conflicts(pkg));
list_display(_("Replaces :"), alpm_pkg_get_replaces(pkg));
size = humanize_size(alpm_pkg_get_size(pkg), 'K', 1, &label);
if(level < 0) {
printf(_("Download Size : %6.2f K\n"),
(double)alpm_pkg_get_size(pkg) / 1024.0);
}
if(level == 0) {
printf(_("Compressed Size: %6.2f K\n"),
(double)alpm_pkg_get_size(pkg) / 1024.0);
printf(_("Download Size : %6.2f %s\n"), size, label);
} else if(level == 0) {
printf(_("Compressed Size: %6.2f %s\n"), size, label);
}
printf(_("Installed Size : %6.2f K\n"),
(double)alpm_pkg_get_isize(pkg) / 1024.0);
size = humanize_size(alpm_pkg_get_isize(pkg), 'K', 1, &label);
printf(_("Installed Size : %6.2f %s\n"), size, label);
string_display(_("Packager :"), alpm_pkg_get_packager(pkg));
string_display(_("Architecture :"), alpm_pkg_get_arch(pkg));
string_display(_("Build Date :"), bdatestr);

54
src/pacman/util.c
View File

@ -522,9 +522,10 @@ void list_display_linebreak(const char *title, const alpm_list_t *list)
void display_targets(const alpm_list_t *pkgs, int install)
{
char *str;
const char *label;
double size;
const alpm_list_t *i;
off_t isize = 0, dlsize = 0;
double mbisize = 0.0, mbdlsize = 0.0;
alpm_list_t *targets = NULL;
if(!pkgs) {
@ -545,19 +546,17 @@ void display_targets(const alpm_list_t *pkgs, int install)
targets = alpm_list_add(targets, str);
}
/* Convert byte sizes to MB */
mbdlsize = (double)dlsize / (1024.0 * 1024.0);
mbisize = (double)isize / (1024.0 * 1024.0);
if(install) {
pm_asprintf(&str, _("Targets (%d):"), alpm_list_count(targets));
list_display(str, targets);
free(str);
printf("\n");
printf(_("Total Download Size: %.2f MB\n"), mbdlsize);
size = humanize_size(dlsize, 'M', 1, &label);
printf(_("Total Download Size: %.2f %s\n"), size, label);
if(!(config->flags & PM_TRANS_FLAG_DOWNLOADONLY)) {
printf(_("Total Installed Size: %.2f MB\n"), mbisize);
size = humanize_size(isize, 'M', 1, &label);
printf(_("Total Installed Size: %.2f %s\n"), size, label);
}
} else {
pm_asprintf(&str, _("Remove (%d):"), alpm_list_count(targets));
@ -565,7 +564,8 @@ void display_targets(const alpm_list_t *pkgs, int install)
free(str);
printf("\n");
printf(_("Total Removed Size: %.2f MB\n"), mbisize);
size = humanize_size(isize, 'M', 1, &label);
printf(_("Total Removed Size: %.2f %s\n"), size, label);
}
FREELIST(targets);
@ -606,6 +606,44 @@ static char *pkg_get_location(pmpkg_t *pkg)
}
}
/** Converts sizes in bytes into human readable units.
*
* @param bytes the size in bytes
* @param target_unit '\0' or a short label. If equal to one of the short unit
* labels ('B', 'K', ...) bytes is converted to target_unit; if '\0', the first
* unit which will bring the value to below a threshold of 2048 will be chosen.
* @param long_labels whether to use short ("K") or long ("KB") unit labels
* @param label will be set to the appropriate unit label
*
* @return the size in the appropriate unit
*/
double humanize_size(off_t bytes, const char target_unit, int long_labels,
const char **label)
{
static const char *shortlabels[] = {"B", "K", "M", "G", "T", "P"};
static const char *longlabels[] = {"B", "KB", "MB", "GB", "TB", "PB"};
static const int unitcount = sizeof(shortlabels) / sizeof(shortlabels[0]);
const char **labels = long_labels ? longlabels : shortlabels;
double val = (double)bytes;
int index;
for(index = 0; index < unitcount - 1; index++) {
if(target_unit != '\0' && shortlabels[index][0] == target_unit) {
break;
} else if(target_unit == '\0' && val <= 2048.0) {
break;
}
val /= 1024.0;
}
if(label) {
*label = labels[index];
}
return(val);
}
void print_packages(const alpm_list_t *packages)
{
const alpm_list_t *i;

1
src/pacman/util.h
View File

@ -52,6 +52,7 @@ char *strtrim(char *str);
char *strreplace(const char *str, const char *needle, const char *replace);
alpm_list_t *strsplit(const char *str, const char splitchar);
void string_display(const char *title, const char *string);
double humanize_size(off_t bytes, const char target_unit, int long_labels, const char **label);
void list_display(const char *title, const alpm_list_t *list);
void list_display_linebreak(const char *title, const alpm_list_t *list);
void display_targets(const alpm_list_t *pkgs, int install);