ref: f3ef860750728e330d9199a9fc5716d8525e972d
parent: c466d3b923d12274cef1ff088c77a0a7491a8fd6
author: Ori Bernstein <ori@eigenstate.org>
date: Sat Jan 8 11:32:28 EST 2022
cons: add 'show ent' command to inspect file tree
--- a/cons.c
+++ b/cons.c
@@ -160,9 +160,34 @@
}
pct = 100.0*(double)used/(double)size;
fprint(fd, "used: %lld / %lld (%.2f%%)\n", used, size, pct);
-}
+}
static void
+showent(int fd, char **ap, int)
+{+ char *e, *p, kbuf[Keymax], kvbuf[Kvmax];
+ Tree *t;
+ Kvp kv;
+ Key k;
+
+ if((t = openlabel("main")) == nil){+ fprint(fd, "could not open main snap\n");
+ return;
+ }
+ if((p = packdkey(kbuf, sizeof(kbuf), atoll(ap[0]), ap[1])) == nil){+ fprint(fd, "could not pack key\n");
+ return;
+ }
+ k.k = kbuf;
+ k.nk = p - kbuf;
+ if((e = btlookup(t, &k, &kv, kvbuf, sizeof(kvbuf))) != nil)
+ fprint(fd, "not found: %s\n", e);
+ else
+ fprint(fd, "%P\n", &kv);
+ closesnap(t);
+}
+
+static void
help(int fd, char**, int)
{char *msg =
@@ -181,6 +206,8 @@
" are supported:\n"
" cache\n"
" the contents of the in-memory cache\n"
+ " ent pqid name\n"
+ " the contents of a directory entry\n"
" tree [name]\n"
" the contents of the tree associated with a\n"
" snapshot. The special name 'snap' shows the\n"
@@ -195,6 +222,7 @@
}
Cmd cmdtab[] = {+ /* admin */
{.name="sync", .sub=nil, .minarg=0, .maxarg=0, .fn=syncfs}, {.name="halt", .sub=nil, .minarg=0, .maxarg=0, .fn=haltfs}, {.name="snap", .sub=nil, .minarg=2, .maxarg=2, .fn=snapfs},@@ -205,12 +233,14 @@
/* debugging */
{.name="show", .sub="cache", .minarg=0, .maxarg=0, .fn=showcache},- {.name="show", .sub="tree", .minarg=0, .maxarg=1, .fn=showtree},- {.name="show", .sub="snap", .minarg=0, .maxarg=1, .fn=showsnap},+ {.name="show", .sub="ent", .minarg=2, .maxarg=2, .fn=showent}, {.name="show", .sub="fid", .minarg=0, .maxarg=0, .fn=showfid}, {.name="show", .sub="free", .minarg=0, .maxarg=0, .fn=showfree},+ {.name="show", .sub="snap", .minarg=0, .maxarg=1, .fn=showsnap},+ {.name="show", .sub="tree", .minarg=0, .maxarg=1, .fn=showtree}, {.name="show", .sub="users", .minarg=0, .maxarg=0, .fn=showusers}, {.name="debug", .sub=nil, .minarg=1, .maxarg=1, .fn=setdbg},+
{.name=nil, .sub=nil},};