E.g. lsblk -o +model
(Maybe it would be nice to add this to other tools as well?)
Signed-off-by: Milan Broz <mbroz@xxxxxxxxxx>
---
misc-utils/lsblk.c | 22 +++++++++++++++++-----
1 file changed, 17 insertions(+), 5 deletions(-)
diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
index cb2b768..471f2d5 100644
--- a/misc-utils/lsblk.c
+++ b/misc-utils/lsblk.c
@@ -1213,6 +1213,7 @@ int main(int argc, char *argv[])
struct lsblk _ls;
int tt_flags = TT_FL_TREE;
int i, c, status = EXIT_FAILURE;
+ char *outarg = NULL;
enum {
EXCL_NONE,
@@ -1290,11 +1291,7 @@ int main(int argc, char *argv[])
tt_flags |= TT_FL_NOHEADINGS;
break;
case 'o':
- ncolumns = string_to_idarray(optarg,
- columns, ARRAY_SIZE(columns),
- column_name_to_id);
- if (ncolumns < 0)
- return EXIT_FAILURE;
+ outarg = optarg;
break;
case 'P':
exclusive_option(&excl_rlP, EXCL_PAIRS, "--{raw,list,pairs}");
@@ -1363,6 +1360,21 @@ int main(int argc, char *argv[])
columns[ncolumns++] = COL_TARGET;
}
+ if (outarg) {
+ if (outarg[0] == '+')
+ outarg++;
+ else
+ ncolumns = 0;
+
+ c = string_to_idarray(outarg, &columns[ncolumns],
+ ARRAY_SIZE(columns) - ncolumns,
+ column_name_to_id);
+ if (c < 0)
+ return EXIT_FAILURE;
+
+ ncolumns += c;
+ }
+
if (nexcludes == 0 && nincludes == 0)
excludes[nexcludes++] = 1; /* default: ignore RAM disks */
--
1.7.10.4
--
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