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df: add -i (conditional on CONFIG)

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uasge: trim a bit
This commit is contained in:
Denis Vlasenko 2007-11-15 07:02:55 +00:00
parent 1fe4e9e573
commit f430cdbf2e
3 changed files with 71 additions and 36 deletions
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7
coreutils/Config.in
View File

@ -135,6 +135,13 @@ config DF
df reports the amount of disk space used and available
on filesystems.
config FEATURE_DF_INODE
bool "Enable -i (inode information)"
default n
depends on DF
help
This option enables support for df -i.
config DIRNAME
bool "dirname"
default n

24
coreutils/df.c
View File

@ -45,9 +45,14 @@ int df_main(int argc, char **argv)
/* default display is kilobytes */
const char *disp_units_hdr = "1k-blocks";
enum {
OPT_INODE = (ENABLE_FEATURE_HUMAN_READABLE ? (1 << 3) : (1 << 1))
* ENABLE_FEATURE_DF_INODE
};
#if ENABLE_FEATURE_HUMAN_READABLE
opt_complementary = "h-km:k-hm:m-hk";
opt = getopt32(argv, "hmk");
opt = getopt32(argv, "hmk" USE_FEATURE_DF_INODE("i"));
if (opt & 1) {
df_disp_hr = 0;
disp_units_hdr = " Size";
@ -56,8 +61,11 @@ int df_main(int argc, char **argv)
df_disp_hr = 1024*1024;
disp_units_hdr = "1M-blocks";
}
if (opt & OPT_INODE) {
disp_units_hdr = " Inodes";
}
#else
opt = getopt32(argv, "k");
opt = getopt32(argv, "k" USE_FEATURE_DF_INODE("i"));
#endif
printf("Filesystem%11s%-15sUsed Available Use%% Mounted on\n",
@ -105,6 +113,15 @@ int df_main(int argc, char **argv)
}
if ((s.f_blocks > 0) || !mount_table) {
if (opt & OPT_INODE) {
s.f_blocks = s.f_files;
s.f_bavail = s.f_bfree = s.f_ffree;
s.f_bsize = 1;
#if ENABLE_FEATURE_HUMAN_READABLE
if (df_disp_hr)
df_disp_hr = 1;
#endif
}
blocks_used = s.f_blocks - s.f_bfree;
blocks_percent_used = 0;
if (blocks_used + s.f_bavail) {
@ -115,7 +132,8 @@ int df_main(int argc, char **argv)
if (strcmp(device, "rootfs") == 0) {
continue;
} else if (strcmp(device, "/dev/root") == 0) {
}
if (strcmp(device, "/dev/root") == 0) {
/* Adjusts device to be the real root device,
* or leaves device alone if it can't find it */
device = find_block_device("/");

24
include/usage.h
View File

@ -630,18 +630,28 @@
"\n and processing synthetic REGISTER events," \
"\n do not poll for events")
/* -k is accepted but ignored for !HUMAN_READABLE,
* but we won't mention this (unimportant) */
#if ENABLE_FEATURE_HUMAN_READABLE || ENABLE_FEATURE_DF_INODE
#define DF_HAS_OPTIONS(x) x
#else
#define DF_HAS_OPTIONS(x)
#endif
#define df_trivial_usage \
"[-" USE_FEATURE_HUMAN_READABLE("hm") "k] [FILESYSTEM ...]"
DF_HAS_OPTIONS("[-") \
USE_FEATURE_HUMAN_READABLE("hmk") USE_FEATURE_DF_INODE("i") \
DF_HAS_OPTIONS("] ") "[FILESYSTEM...]"
#define df_full_usage \
"Print the filesystem space used and space available" \
"Print filesystem usage statistics" \
DF_HAS_OPTIONS("\n\nOptions:") \
USE_FEATURE_HUMAN_READABLE( \
"\n\nOptions control size display:" \
"\n -h Human readable (e.g. 1K 243M 2G)" \
"\n -m 1024*1024 blocks" \
"\n -k 1024 blocks") \
SKIP_FEATURE_HUMAN_READABLE( \
"\n\nOptions:" \
"\n -k Ignored")
"\n -k 1024 blocks" \
) \
USE_FEATURE_DF_INODE( \
"\n -i Inodes" \
)
#define df_example_usage \
"$ df\n" \
"Filesystem 1k-blocks Used Available Use% Mounted on\n" \