lsblk: add --version switch
[kzak@redhat.com: - update usage() and man page] Signed-off-by: Milan Broz <mbroz@redhat.com>
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@ -60,6 +60,8 @@ Use the raw output format. All potentially unsafe characters are hex-escaped (\\
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.IP "\fB\-t, \-\-topology\fP"
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Output info about block device topology.
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This option is equivalent to "-o NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-SEC,ROTA,SCHED".
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.IP "\fB\-V, \-\-version\fP"
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Output version information and exit.
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.SH NOTES
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For the partitions are some information (e.g. queue attributes) inherited from
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parental device.
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@ -1085,14 +1085,15 @@ static void __attribute__((__noreturn__)) help(FILE *out)
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" -P, --pairs use key=\"value\" output format\n"
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" -r, --raw use raw output format\n"
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" -s, --inverse inverse dependencies\n"
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" -t, --topology output info about topology\n"));
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" -t, --topology output info about topology\n"
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" -V, --version output version information and exit\n"));
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fprintf(out, _("\nAvailable columns:\n"));
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fprintf(out, _("\nAvailable columns (for --output):\n"));
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for (i = 0; i < NCOLS; i++)
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fprintf(out, " %10s %s\n", infos[i].name, _(infos[i].help));
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fprintf(out, " %11s %s\n", infos[i].name, _(infos[i].help));
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fprintf(out, _("\nFor more information see lsblk(8).\n"));
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fprintf(out, USAGE_MAN_TAIL("lsblk(8)"));
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exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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@ -1133,6 +1134,7 @@ int main(int argc, char *argv[])
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{ "exclude", 1, 0, 'e' },
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{ "topology", 0, 0, 't' },
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{ "pairs", 0, 0, 'P' },
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{ "version", 0, 0, 'V' },
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{ NULL, 0, 0, 0 },
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};
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@ -1143,7 +1145,7 @@ int main(int argc, char *argv[])
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lsblk = &_ls;
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memset(lsblk, 0, sizeof(*lsblk));
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while((c = getopt_long(argc, argv, "abdDe:fhlnmo:Pirst", longopts, NULL)) != -1) {
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while((c = getopt_long(argc, argv, "abdDe:fhlnmo:PirstV", longopts, NULL)) != -1) {
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switch(c) {
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case 'a':
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lsblk->all_devices = 1;
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@ -1222,6 +1224,10 @@ int main(int argc, char *argv[])
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columns[ncolumns++] = COL_SCHED;
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columns[ncolumns++] = COL_RQ_SIZE;
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break;
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case 'V':
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printf(_("%s from %s\n"), program_invocation_short_name,
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PACKAGE_STRING);
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return EXIT_SUCCESS;
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default:
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help(stderr);
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}
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