`Options`
--v::
-enable verbose output, print generated commands in a readable form, (each
-occurrence of this option increases the verbosity level)
-e::
if sending multiple subvolumes at once, use the new format and omit the
'end cmd' marker in the stream separating the subvolumes
The output stream does not contain any file
data and thus cannot be used to transfer changes. This mode is faster and
useful to show the differences in metadata.
+-v|--verbose::
+enable verbose output, print generated commands in a readable form, (each
+occurrence of this option increases the verbosity level)
+-q|--quiet::
+suppress all messagese except errors
EXIT STATUS
-----------
#include "send.h"
#include "send-utils.h"
-static int g_verbose = 0;
+/*
+ * Default is 1 for historical reasons, changing may break scripts that expect
+ * the 'At subvol' message.
+ */
+static int g_verbose = 1;
struct btrfs_send {
int send_fd;
"Try upgrading your kernel or don't use -e.\n");
goto out;
}
- if (g_verbose > 0)
+ if (g_verbose > 1)
fprintf(stderr, "BTRFS_IOC_SEND returned %d\n", ret);
- if (g_verbose > 0)
+ if (g_verbose > 1)
fprintf(stderr, "joining genl thread\n");
close(pipefd[1]);
while (1) {
enum { GETOPT_VAL_SEND_NO_DATA = 256 };
static const struct option long_options[] = {
+ { "verbose", no_argument, NULL, 'v' },
+ { "quiet", no_argument, NULL, 'q' },
{ "no-data", no_argument, NULL, GETOPT_VAL_SEND_NO_DATA }
};
- int c = getopt_long(argc, argv, "vec:f:i:p:", long_options, NULL);
+ int c = getopt_long(argc, argv, "vqec:f:i:p:", long_options, NULL);
if (c < 0)
break;
case 'v':
g_verbose++;
break;
+ case 'q':
+ g_verbose = 0;
+ break;
case 'e':
new_end_cmd_semantic = 1;
break;
}
}
- if (send_flags & BTRFS_SEND_FLAG_NO_FILE_DATA)
- printf("Mode NO_FILE_DATA enabled\n");
+ if ((send_flags & BTRFS_SEND_FLAG_NO_FILE_DATA) && g_verbose > 1)
+ if (g_verbose > 1)
+ fprintf(stderr, "Mode NO_FILE_DATA enabled\n");
for (i = optind; i < argc; i++) {
int is_first_subvol;
free(subvol);
subvol = argv[i];
- fprintf(stderr, "At subvol %s\n", subvol);
+ if (g_verbose > 0)
+ fprintf(stderr, "At subvol %s\n", subvol);
subvol = realpath(subvol, NULL);
if (!subvol) {
"which case 'btrfs send' will determine a suitable parent among the",
"clone sources itself.",
"\n",
- "-v Enable verbose debug output. Each occurrence of",
- " this option increases the verbose level more.",
"-e If sending multiple subvols at once, use the new",
" format and omit the end-cmd between the subvols.",
"-p <parent> Send an incremental stream from <parent> to",
" does not contain any file data and thus cannot be used",
" to transfer changes. This mode is faster and useful to",
" show the differences in metadata.",
+ "-v|--verbose enable verbose output to stderr, each occurrence of",
+ " this option increases verbosity",
+ "-q|--quiet suppress all messages, except errors",
NULL
};