PATCH for a minimum size enhancement to du

[David J Craigon]

Hi there,

	One of the things I like doing with du is going through directories 
when I have run out of disk space, trying to find out what is taking up 
of the room. I use max-depth to try and filter the directories, but this 
tends to have the problem that I either end up with a few, big 
directories, which I then need to run du on again, or many small 
directories which are hard to read. Wouldn't it be great if you could do 
du --min-size=3G and find all directories bigger than 3G?

Patch begins....

--- coreutils/src/du.c.old      2005-03-18 17:43:15.000000000 +0000
+++ coreutils/src/du.c  2005-03-21 12:24:06.172951172 +0000
@@ -113,6 +113,11 @@
 /* Grand total size of all args, in bytes. */
 static uintmax_t tot_size = 0;

+/* Minimum size of sum in bytes to display */
+
+static uintmax_t min_size=0;
+
+
 #define IS_DIR_TYPE(Type)      \
   ((Type) == FTS_DP            \
    || (Type) == FTS_DNR)
@@ -125,7 +130,8 @@
   EXCLUDE_OPTION,
   FILES0_FROM_OPTION,
   HUMAN_SI_OPTION,
-  MAX_DEPTH_OPTION
+  MAX_DEPTH_OPTION,
+  MIN_SIZE_OPTION
 };

 static struct option const long_options[] =
@@ -144,6 +150,7 @@
   {"si", no_argument, NULL, HUMAN_SI_OPTION},
   {"kilobytes", no_argument, NULL, 'k'}, /* long form is obsolescent */
   {"max-depth", required_argument, NULL, MAX_DEPTH_OPTION},
+  {"min-size", required_argument, NULL, MIN_SIZE_OPTION},
   {"null", no_argument, NULL, '0'},
   {"megabytes", no_argument, NULL, 'm'}, /* obsolescent */
   {"no-dereference", no_argument, NULL, 'P'},
@@ -211,6 +218,8 @@
                           only if it is N or fewer levels below the 
command\n\
                           line argument;  --max-depth=0 is the same as\n\
                           --summarize\n\
+      --min-size=SIZE   allows a minimum cumulative size a 
directory/file must\n\
+                          be before it is displayed\n\
 "), stdout);
       fputs (HELP_OPTION_DESCRIPTION, stdout);
       fputs (VERSION_OPTION_DESCRIPTION, stdout);
@@ -465,8 +474,11 @@
   if (!print)
     return ok;

-  if ((IS_DIR_TYPE (ent->fts_info) && level <= max_depth)
+  if (
+      ((IS_DIR_TYPE (ent->fts_info) && level <= max_depth)
       || ((opt_all && level <= max_depth) || level == 0))
+      && (size_to_print>min_size)
+      )
     {
       print_only_size (size_to_print);
       fputc ('\t', stdout);
@@ -627,6 +639,10 @@
          }
          break;

+       case MIN_SIZE_OPTION:           /* --min-size=SIZE */
+         human_output_opts = human_options (optarg, true, &min_size);
+         break;
+
        case 'm': /* obsolescent: FIXME: remove in 2005. */
          human_output_opts = 0;
          output_block_size = 1024 * 1024;


Thanks,
        David

P.S. even if you don't like the patch, I think the idea is a good one.

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