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du: support -b "apparent size"

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function                                             old     new   delta
du                                                   434     470     +36
packed_usage                                       33542   33570     +28
print                                                 57      78     +21
du_main                                              286     302     +16
.rodata                                           103187  103188      +1
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(add/remove: 0/0 grow/shrink: 5/0 up/down: 102/0)             Total: 102 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-06-16 17:28:02 +02:00
parent 46d315ae44
commit e7a8e8e30c
1 changed files with 21 additions and 12 deletions
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29
coreutils/du.c
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@ -42,6 +42,7 @@
//usage:#define du_full_usage "\n\n"
//usage: "Summarize disk space used for FILEs (or directories)\n"
//usage: "\n -a Show file sizes too"
//usage: "\n -b Apparent size (including holes)"
//usage: "\n -L Follow all symlinks"
//usage: "\n -H Follow symlinks on command line"
//usage: "\n -d N Limit output to directories (and files with -a) of depth < N"
@ -84,8 +85,9 @@ enum {
OPT_d_maxdepth = (1 << 6),
OPT_l_hardlinks = (1 << 7),
OPT_c_total = (1 << 8),
OPT_h_for_humans = (1 << 9),
OPT_m_mbytes = (1 << 10),
OPT_b = (1 << 9),
OPT_h_for_humans = (1 << 10),
OPT_m_mbytes = (1 << 11),
};
struct globals {
@ -109,7 +111,7 @@ static void print(unsigned long long size, const char *filename)
/* TODO - May not want to defer error checking here. */
#if ENABLE_FEATURE_HUMAN_READABLE
# if ENABLE_DESKTOP
/* ~30 bytes of code for extra comtat:
/* ~30 bytes of code for extra compat:
* coreutils' du rounds sizes up:
* for example, 1025k file is shown as "2" by du -m.
* We round to nearest if human-readable [too hard to fix],
@ -124,12 +126,16 @@ static void print(unsigned long long size, const char *filename)
* If G.disp_unit == 0, show one fractional
* and use suffixes
*/
make_human_readable_str(size, 512, G.disp_unit),
make_human_readable_str(size, (option_mask32 & OPT_b) ? 1 : 512, G.disp_unit),
filename);
#else
if (G.disp_k) {
if (!(option_mask32 & OPT_b)) {
size++;
size >>= 1;
} else {
size >>= 10;
}
}
printf("%llu\t%s\n", size, filename);
#endif
@ -155,7 +161,7 @@ static unsigned long long du(const char *filename)
}
}
sum = statbuf.st_blocks;
sum = ((option_mask32 & OPT_b) ? statbuf.st_size : statbuf.st_blocks);
if (S_ISLNK(statbuf.st_mode)) {
if (G.slink_depth > G.du_depth) { /* -H or -L */
@ -164,7 +170,7 @@ static unsigned long long du(const char *filename)
G.status = EXIT_FAILURE;
return 0;
}
sum = statbuf.st_blocks;
sum = ((option_mask32 & OPT_b) ? statbuf.st_size : statbuf.st_blocks);
if (G.slink_depth == 1) {
/* Convert -H to -L */
G.slink_depth = INT_MAX;
@ -241,11 +247,14 @@ int du_main(int argc UNUSED_PARAM, char **argv)
*/
#if ENABLE_FEATURE_HUMAN_READABLE
opt = getopt32(argv, "^"
"aHkLsxd:+lchm"
"aHkLsxd:+lcbhm"
"\0" "h-km:k-hm:m-hk:H-L:L-H:s-d:d-s",
&G.max_print_depth
);
argv += optind;
if (opt & OPT_b) {
G.disp_unit = 1;
}
if (opt & OPT_h_for_humans) {
G.disp_unit = 0;
}
@ -257,16 +266,16 @@ int du_main(int argc UNUSED_PARAM, char **argv)
}
#else
opt = getopt32(argv, "^"
"aHkLsxd:+lc"
"aHkLsxd:+lcb"
"\0" "H-L:L-H:s-d:d-s",
&G.max_print_depth
);
argv += optind;
#if !ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
# if !ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
if (opt & OPT_k_kbytes) {
G.disp_k = 1;
}
#endif
# endif
#endif
if (opt & OPT_H_follow_links) {
G.slink_depth = 1;