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author | Karel Zak | 2019-02-20 12:49:24 +0100 |
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committer | Karel Zak | 2019-02-20 12:49:24 +0100 |
commit | b9c088f2f3a30adaa658b1e1ad0cf30b618a1559 (patch) | |
tree | c6041e9a1737a4695a27f524c8e3bfdafd1f5a9e /misc-utils/lsblk.c | |
parent | libsmartcols: print tree also for empty cells (diff) | |
download | kernel-qcow2-util-linux-b9c088f2f3a30adaa658b1e1ad0cf30b618a1559.tar.gz kernel-qcow2-util-linux-b9c088f2f3a30adaa658b1e1ad0cf30b618a1559.tar.xz kernel-qcow2-util-linux-b9c088f2f3a30adaa658b1e1ad0cf30b618a1559.zip |
lsblk: allow to specify tree column
* document --tree (was missing in the man page)
* add optional argument to --tree to specify tree
For example:
$ lsblk -o KNAME,SIZE,MOUNTPOINT --tree=KNAME /dev/dm-0
KNAME SIZE MOUNTPOINT
dm-0 232.9G
└─dm-1 232.9G
└─dm-2 232.9G
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'misc-utils/lsblk.c')
-rw-r--r-- | misc-utils/lsblk.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c index ffa1f82bf..454f067c8 100644 --- a/misc-utils/lsblk.c +++ b/misc-utils/lsblk.c @@ -146,7 +146,7 @@ struct colinfo { /* columns descriptions */ static struct colinfo infos[] = { - [COL_NAME] = { "NAME", 0.25, SCOLS_FL_TREE | SCOLS_FL_NOEXTREMES, N_("device name") }, + [COL_NAME] = { "NAME", 0.25, SCOLS_FL_NOEXTREMES, N_("device name") }, [COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") }, [COL_PKNAME] = { "PKNAME", 0.3, 0, N_("internal parent kernel device name") }, [COL_PATH] = { "PATH", 0.3, 0, N_("path to the device node") }, @@ -1725,7 +1725,7 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_(" -O, --output-all output all columns\n"), out); fputs(_(" -P, --pairs use key=\"value\" output format\n"), out); fputs(_(" -S, --scsi output info about SCSI devices\n"), out); - fputs(_(" -T, --tree use tree format output\n"), out); + fputs(_(" -T, --tree[=<column>] use tree format output\n"), out); fputs(_(" -a, --all print all devices\n"), out); fputs(_(" -b, --bytes print SIZE in bytes rather than in human readable format\n"), out); fputs(_(" -d, --nodeps don't print slaves or holders\n"), out); @@ -1769,13 +1769,14 @@ int main(int argc, char *argv[]) struct lsblk _ls = { .sort_id = -1, .dedup_id = -1, - .flags = LSBLK_TREE + .flags = LSBLK_TREE, + .tree_id = COL_NAME }; struct lsblk_devtree *tr = NULL; int c, status = EXIT_FAILURE; char *outarg = NULL; size_t i; - int force_tree = 0; + int force_tree = 0, has_tree_col = 0; enum { OPT_SYSROOT = CHAR_MAX + 1 @@ -1808,7 +1809,7 @@ int main(int argc, char *argv[]) { "scsi", no_argument, NULL, 'S' }, { "sort", required_argument, NULL, 'x' }, { "sysroot", required_argument, NULL, OPT_SYSROOT }, - { "tree", no_argument, NULL, 'T' }, + { "tree", optional_argument, NULL, 'T' }, { "version", no_argument, NULL, 'V' }, { NULL, 0, NULL, 0 }, }; @@ -1836,7 +1837,7 @@ int main(int argc, char *argv[]) lsblk_init_debug(); while((c = getopt_long(argc, argv, - "abdDzE:e:fhJlnMmo:OpPiI:rstVSTx:", longopts, NULL)) != -1) { + "abdDzE:e:fhJlnMmo:OpPiI:rstVST:x:", longopts, NULL)) != -1) { err_exclusive_options(c, longopts, excl, excl_st); @@ -1948,8 +1949,9 @@ int main(int argc, char *argv[]) break; case 'T': force_tree = 1; + if (optarg) + lsblk->tree_id = column_name_to_id(optarg, strlen(optarg)); break; - case OPT_SYSROOT: lsblk->sysroot = optarg; break; @@ -2039,8 +2041,14 @@ int main(int argc, char *argv[]) struct libscols_column *cl; int id = get_column_id(i), fl = ci->flags; - if (!(lsblk->flags & LSBLK_TREE) && id == COL_NAME) - fl &= ~SCOLS_FL_TREE; + if ((lsblk->flags & LSBLK_TREE) + && has_tree_col == 0 + && id == lsblk->tree_id) { + fl |= SCOLS_FL_TREE; + fl &= ~SCOLS_FL_RIGHT; + has_tree_col = 1; + } + if (lsblk->sort_hidden && lsblk->sort_id == id) fl |= SCOLS_FL_HIDDEN; if (lsblk->dedup_hidden && lsblk->dedup_id == id) |