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btrfs-progs: dev usage, add switches to set output units 

Same set of options as 'fi df': binary and decimal bases, human readable
options etc.

Signed-off-by: David Sterba <dsterba@suse.cz>
master
David Sterba 2014-12-17 18:16:18 +01:00
parent 488c53a0e5
commit abef6fd343
1 changed files with 50 additions and 10 deletions
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60
cmds-device.c
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@ -451,10 +451,17 @@ out:
}
const char * const cmd_device_usage_usage[] = {
"btrfs device usage [-b] <path> [<path>..]",
"Show which chunks are in a device.",
"",
"-b\tSet byte as unit",
"btrfs device usage [options] <path> [<path>..]",
"Show detailed information about internal allocations in devices.",
"-b|--raw raw numbers in bytes",
"-h human friendly numbers, base 1024 (default)",
"-H human friendly numbers, base 1000",
"--iec use 1024 as a base (KiB, MiB, GiB, TiB)",
"--si use 1000 as a base (kB, MB, GB, TB)",
"-k|--kbytes show sizes in KiB, or kB with --si",
"-m|--mbytes show sizes in MiB, or MB with --si",
"-g|--gbytes show sizes in GiB, or GB with --si",
"-t|--tbytes show sizes in TiB, or TB with --si",
NULL
};
@ -489,21 +496,54 @@ out:
int cmd_device_usage(int argc, char **argv)
{
int mode = UNITS_HUMAN;
unsigned unit_mode = UNITS_DEFAULT;
int ret = 0;
int i, more_than_one = 0;
optind = 1;
while (1) {
int c = getopt(argc, argv, "b");
int long_index;
static const struct option long_options[] = {
{ "raw", no_argument, NULL, 'b'},
{ "kbytes", no_argument, NULL, 'k'},
{ "mbytes", no_argument, NULL, 'm'},
{ "gbytes", no_argument, NULL, 'g'},
{ "tbytes", no_argument, NULL, 't'},
{ "si", no_argument, NULL, 256},
{ "iec", no_argument, NULL, 257},
};
int c = getopt_long(argc, argv, "bhHkmgt", long_options,
&long_index);
if (c < 0)
break;
switch (c) {
case 'b':
mode = UNITS_RAW;
unit_mode = UNITS_RAW;
break;
case 'k':
units_set_base(&unit_mode, UNITS_KBYTES);
break;
case 'm':
units_set_base(&unit_mode, UNITS_MBYTES);
break;
case 'g':
units_set_base(&unit_mode, UNITS_GBYTES);
break;
case 't':
units_set_base(&unit_mode, UNITS_TBYTES);
break;
case 'h':
unit_mode = UNITS_HUMAN_BINARY;
break;
case 'H':
unit_mode = UNITS_HUMAN_DECIMAL;
break;
case 256:
units_set_mode(&unit_mode, UNITS_DECIMAL);
break;
case 257:
units_set_mode(&unit_mode, UNITS_BINARY);
break;
default:
usage(cmd_device_usage_usage);
@ -527,7 +567,7 @@ int cmd_device_usage(int argc, char **argv)
goto out;
}
ret = _cmd_device_usage(fd, argv[i], mode);
ret = _cmd_device_usage(fd, argv[i], unit_mode);
close_file_or_dir(fd, dirstream);
if (ret)