Change btrfs filesystem show to allow the user to control the scales
used for sizes in the output.
Signed-off-by: Hugo Mills <h...@carfax.org.uk>
---
btrfs.c | 2 +-
btrfs_cmds.c | 45 ++++++++++++++++++++++++++++++++++++++-------
man/btrfs.8.in | 15 ++++++++++-----
3 files changed, 49 insertions(+), 13 deletions(-)
Index: btrfs-progs-unstable/btrfs.c
===================================================================
--- btrfs-progs-unstable.orig/btrfs.c 2010-10-26 13:01:43.000000000 +0100
+++ btrfs-progs-unstable/btrfs.c 2010-10-26 13:02:40.814489740 +0100
@@ -83,7 +83,7 @@
"will occupe all available space on the device."
},
{ do_show_filesystem, 999,
- "filesystem show", "[<uuid>|<label>]\n"
+ "filesystem show", "[-h|--human-readable|-H|--si] [<uuid>|<label>]\n"
"Show the info of a btrfs filesystem. If no <uuid> or <label>\n"
"is passed, info of all the btrfs filesystem are shown."
},
Index: btrfs-progs-unstable/btrfs_cmds.c
===================================================================
--- btrfs-progs-unstable.orig/btrfs_cmds.c 2010-10-26 13:00:39.000000000
+0100
+++ btrfs-progs-unstable/btrfs_cmds.c 2010-10-26 13:02:40.834488902 +0100
@@ -617,7 +617,7 @@
return 0;
}
-static void print_one_uuid(struct btrfs_fs_devices *fs_devices)
+static void print_one_uuid(struct btrfs_fs_devices *fs_devices, int format)
{
char uuidbuf[37];
struct list_head *cur;
@@ -634,8 +634,7 @@
else
printf("Label: none ");
- super_bytes_used = pretty_sizes(device->super_bytes_used,
-
PRETTY_SIZE_RAW);
+ super_bytes_used = pretty_sizes(device->super_bytes_used, format);
total = device->total_devs;
printf(" uuid: %s\n\tTotal devices %llu FS bytes used %s\n", uuidbuf,
@@ -647,8 +646,8 @@
char *total_bytes;
char *bytes_used;
device = list_entry(cur, struct btrfs_device, dev_list);
- total_bytes = pretty_sizes(device->total_bytes,
PRETTY_SIZE_RAW);
- bytes_used = pretty_sizes(device->bytes_used, PRETTY_SIZE_RAW);
+ total_bytes = pretty_sizes(device->total_bytes, format);
+ bytes_used = pretty_sizes(device->bytes_used, format);
printf("\tdevid %4llu size %s used %s path %s\n",
(unsigned long long)device->devid,
total_bytes, bytes_used, device->name);
@@ -662,13 +661,45 @@
printf("\n");
}
+const struct option show_options[] = {
+ { "human-readable", 0, NULL, 'h' },
+ { "si", 0, NULL, 'H' },
+ { NULL, 0, NULL, 0 }
+};
+
int do_show_filesystem(int argc, char **argv)
{
struct list_head *all_uuids;
struct btrfs_fs_devices *fs_devices;
struct list_head *cur_uuid;
- char *search = argv[1];
+ char *search;
int ret;
+ int format = PRETTY_SIZE_RAW;
+
+ optind = 1;
+ while(1) {
+ int c = getopt_long(argc, argv, "hH", show_options, NULL);
+ if (c < 0)
+ break;
+ switch(c) {
+ case 'h':
+ format = PRETTY_SIZE_BINARY;
+ break;
+ case 'H':
+ format = PRETTY_SIZE_ISO;
+ break;
+ default:
+ fprintf(stderr, "Invalid arguments for show\n");
+ free(argv);
+ return 1;
+ }
+ }
+ if (argc - optind > 1) {
+ fprintf(stderr, "Too many arguments for show\n");
+ free(argv);
+ return 1;
+ }
+ search = argv[optind];
ret = btrfs_scan_one_dir("/dev", 0);
if (ret){
@@ -682,7 +713,7 @@
list);
if (search && uuid_search(fs_devices, search) == 0)
continue;
- print_one_uuid(fs_devices);
+ print_one_uuid(fs_devices, format);
}
printf("%s\n", BTRFS_BUILD_VERSION);
return 0;
Index: btrfs-progs-unstable/man/btrfs.8.in
===================================================================
--- btrfs-progs-unstable.orig/man/btrfs.8.in 2010-10-26 13:01:27.000000000
+0100
+++ btrfs-progs-unstable/man/btrfs.8.in 2010-10-26 13:03:43.941854637 +0100
@@ -23,6 +23,8 @@
.PP
\fBbtrfs\fP \fBfilesystem df\fP\fI [-h|-H|--human-readable|--si] <path>\fP
.PP
+\fBbtrfs\fP \fBfilesystem show\fP\fI [-h|--human-readable|-H|--si]
[<uuid>|<label>]\fP
+.PP
\fBbtrfs\fP \fBdevice scan\fP\fI [<device> [<device>..]]\fP
.PP
\fBbtrfs\fP \fBdevice show\fP\fI <dev>|<label> [<dev>|<label>...]\fP
@@ -140,16 +142,19 @@
partition after reducing the size of the filesystem.
.TP
-\fBfilesystem show\fR [<uuid>|<label>]\fR
-Show the btrfs filesystem with some additional info. If no UUID or label is
-passed, \fBbtrfs\fR show info of all the btrfs filesystem.
-.TP
-
\fBfilesystem df\fR [-h|-H|--human-readable|--si] <path>\fR
Show the amount of space used on this filesystem, in bytes. Options:
-h, --human-readable Use powers of 2^10 (1024) to report sizes.
-H, --si Use powers of 10^3 (1000) to report sizes, in SI multiples.
.TP
+
+\fBfilesystem show\fR [-h|-H|--human-readable|--si] [<uuid>|<label>]\fR
+Show the usage of each device in the btrfs filesystem with the given
+uuid or label, or all filesystems if no uuid or label is provided.
+Options:
+-h, --human-readable Use powers of 2^10 (1024) to report sizes.
+-H, --si Use powers of 10^3 (1000) to report sizes, in SI multiples.
+.TP
\fBdevice balance\fR \fI<path>\fR
Balance the chunks of the filesystem identified by \fI<path>\fR
--
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