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Du feature request - user reporting


From: Daniel Gall
Subject: Du feature request - user reporting
Date: Wed, 7 Feb 2018 06:35:05 -0500

>From d57cf221746eadf87e612f8d4596cbed91f4860d Mon Sep 17 00:00:00 2001
From: Daniel Gall <address@hidden>
Date: Wed, 7 Feb 2018 01:27:43 -0500
Subject: [PATCH] :Added user subtotal repoting to du

---
 NEWS               |   2 +
 doc/coreutils.texi |   5 ++
 src/du.c           | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 176 insertions(+), 10 deletions(-)

diff --git a/NEWS b/NEWS
index 8a9e09e..6192b07 100644
--- a/NEWS
+++ b/NEWS
@@ -56,6 +56,8 @@ GNU coreutils NEWS
 -*- outline -*-

   timeout now supports the --verbose option to diagnose forced termination.

+  du now supports the -u option for user reporting
+
 ** Improvements

   dd now supports iflag=direct with arbitrary sized files on all file systems.
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index cdde136..fb61345 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -12100,6 +12100,11 @@ the newline and any later characters are
ignored; if @env{TIME_STYLE}
 begins with @samp{posix-} the @samp{posix-} is ignored; and if
 @env{TIME_STYLE} is @samp{locale} it is ignored.

+@item -u
+@opindex -u
+@cindex user reporting
+Show user subtotals for each item reported on.
+
 @item -X @var{file}
 @itemx --exclude-from=@var{file}
 @opindex -X @var{file}
diff --git a/src/du.c b/src/du.c
index ac4489f..a1d06d5 100644
--- a/src/du.c
+++ b/src/du.c
@@ -37,6 +37,7 @@
 #include "fprintftime.h"
 #include "human.h"
 #include "mountlist.h"
+#include "pwd.h"
 #include "quote.h"
 #include "stat-size.h"
 #include "stat-time.h"
@@ -61,6 +62,9 @@ extern bool fts_debug;
 # define FTS_CROSS_CHECK(Fts)
 #endif

+/* If true, display user size info. */
+bool opt_user_sizes = false;
+
 /* A set of dev/ino pairs to help identify files and directories
    whose sizes have already been counted.  */
 static struct di_set *di_files;
@@ -81,6 +85,9 @@ struct duinfo
   /* Number of inodes in directory.  */
   uintmax_t inodes;

+  /* Pointer to array of uid indexed size subtotals. */
+  uintmax_t *user_size;
+
   /* Latest timestamp found.  If tmax.tv_sec == TYPE_MINIMUM (time_t)
      && tmax.tv_nsec < 0, no timestamp has been found.  */
   struct timespec tmax;
@@ -90,28 +97,62 @@ struct duinfo
 static inline void
 duinfo_init (struct duinfo *a)
 {
+  uintmax_t i = 0;
   a->size = 0;
   a->inodes = 0;
   a->tmax.tv_sec = TYPE_MINIMUM (time_t);
   a->tmax.tv_nsec = -1;
+  if (opt_user_sizes)
+    {
+      for (i=0; i<65535; i++)
+        {
+      a->user_size[i] = 0;
+    }
+    }
 }

 /* Set directory data.  */
 static inline void
-duinfo_set (struct duinfo *a, uintmax_t size, struct timespec tmax)
+duinfo_set (struct duinfo *a, uintmax_t size, struct timespec tmax,
uintmax_t uid)
 {
+  uintmax_t uid_u = (uintmax_t)uid;
+  uintmax_t uid_s;
   a->size = size;
   a->inodes = 1;
   a->tmax = tmax;
+  if (opt_user_sizes)
+    {
+      if (uid_u > 65534)
+        {
+      uid_s = 65534;
+    }
+      else
+        {
+      uid_s = uid_u;
+    }
+      if (uid_s >=0 && uid_s <=65534)
+        {
+      a->user_size[uid_s] = size;
+    }
+    }
 }

 /* Accumulate directory data.  */
 static inline void
 duinfo_add (struct duinfo *a, struct duinfo const *b)
 {
+  uintmax_t i = 0;
   uintmax_t sum = a->size + b->size;
   a->size = a->size <= sum ? sum : UINTMAX_MAX;
   a->inodes = a->inodes + b->inodes;
+  if (opt_user_sizes)
+    {
+      for (i=0; i<65535; i++)
+        {
+          sum = a->user_size[i] + b->user_size[i];
+          a->user_size[i] = a->user_size[i] <= sum ? sum : UINTMAX_MAX;
+        }
+    }
   if (timespec_cmp (a->tmax, b->tmax) < 0)
     a->tmax = b->tmax;
 }
@@ -239,6 +280,7 @@ static struct option const long_options[] =
   {"threshold", required_argument, NULL, 't'},
   {"time", optional_argument, NULL, TIME_OPTION},
   {"time-style", required_argument, NULL, TIME_STYLE_OPTION},
+  {"user-reporting", no_argument, NULL, 'u'},
   {GETOPT_HELP_OPTION_DECL},
   {GETOPT_VERSION_OPTION_DECL},
   {NULL, 0, NULL, 0}
@@ -346,6 +388,7 @@ Summarize disk usage of the set of FILEs,
recursively for directories.\n\
                             FORMAT is interpreted like in 'date'\n\
 "), stdout);
       fputs (_("\
+  -u, --user-reporting also print user subtotals\n\
   -X, --exclude-from=FILE  exclude files that match any pattern in FILE\n\
       --exclude=PATTERN    exclude files that match PATTERN\n\
   -x, --one-file-system    skip directories on different file systems\n\
@@ -411,7 +454,25 @@ print_size (const struct duinfo *pdui, const char *string)
   print_only_size (opt_inodes
                    ? pdui->inodes
                    : pdui->size);
-
+  if (opt_user_sizes)
+    {
+      uintmax_t i=0;
+      struct passwd *g;
+      printf(" Users");
+      for (i=0; i<65535; i++){
+        if (pdui->user_size[i] > 0)
+          {
+            g = getpwuid(i);
+            printf (",");
+            if (g == NULL){
+              printf (" %Ld:", (long long unsigned int)i);
+            }else{
+              printf(" %s:", g->pw_name);
+            }
+            print_only_size(pdui->user_size[i]);
+          }
+      }
+    }
   if (opt_time)
     {
       putchar ('\t');
@@ -506,6 +567,12 @@ process_file (FTS *fts, FTSENT *ent)
   const struct stat *sb = ent->fts_statp;
   int info = ent->fts_info;

+  if(opt_user_sizes)
+    {
+      dui.user_size = xcalloc (65536, sizeof (uintmax_t));
+      dui_to_print.user_size = xcalloc (65536, sizeof (uintmax_t));
+    }
+
   if (info == FTS_DNR)
     {
       /* An error occurred, but the size is known, so count it.  */
@@ -530,7 +597,18 @@ process_file (FTS *fts, FTSENT *ent)
           if (info == FTS_NS || info == FTS_SLNONE)
             {
               error (0, ent->fts_errno, _("cannot access %s"), quoteaf (file));
-              return false;
+              if(opt_user_sizes)
+                {
+                  if (dui.user_size != NULL)
+                    {
+                      free(dui.user_size);
+                    }
+                  if (dui_to_print.user_size != NULL)
+                    {
+                      free(dui_to_print.user_size);
+                    }
+                }
+          return false;
             }

           /* The --one-file-system (-x) option cannot exclude anything
@@ -558,13 +636,34 @@ process_file (FTS *fts, FTSENT *ent)
               FTSENT const *e = fts_read (fts);
               assert (e == ent);
             }
-
+          if(opt_user_sizes)
+            {
+              if (dui.user_size != NULL)
+                {
+                  free(dui.user_size);
+                }
+              if (dui_to_print.user_size != NULL)
+                {
+                  free(dui_to_print.user_size);
+                }
+            }
           return true;
         }

       switch (info)
         {
         case FTS_D:
+      if(opt_user_sizes)
+            {
+              if (dui.user_size != NULL)
+                {
+                  free(dui.user_size);
+                }
+              if (dui_to_print.user_size != NULL)
+                {
+                  free(dui_to_print.user_size);
+                }
+            }
           return true;

         case FTS_ERR:
@@ -574,6 +673,17 @@ process_file (FTS *fts, FTSENT *ent)
           break;

         case FTS_DC:
+      if(opt_user_sizes)
+            {
+              if (dui.user_size != NULL)
+                {
+                  free(dui.user_size);
+                }
+              if (dui_to_print.user_size != NULL)
+                {
+                  free(dui_to_print.user_size);
+                }
+            }
           /* If not following symlinks and not a (bind) mount point.  */
           if (cycle_warning_required (fts, ent)
               && ! mount_point_in_fts_cycle (ent))
@@ -584,22 +694,46 @@ process_file (FTS *fts, FTSENT *ent)
           return true;
         }
     }
-
   duinfo_set (&dui,
               (apparent_size
                ? MAX (0, sb->st_size)
                : (uintmax_t) ST_NBLOCKS (*sb) * ST_NBLOCKSIZE),
               (time_type == time_mtime ? get_stat_mtime (sb)
                : time_type == time_atime ? get_stat_atime (sb)
-               : get_stat_ctime (sb)));
+               : get_stat_ctime (sb)),
+           sb->st_uid);

   level = ent->fts_level;
-  dui_to_print = dui;
+
+  if (opt_user_sizes)
+    {
+      duinfo_set (&dui_to_print,
+              (apparent_size
+               ? MAX (0, sb->st_size)
+               : (uintmax_t) ST_NBLOCKS (*sb) * ST_NBLOCKSIZE),
+              (time_type == time_mtime ? get_stat_mtime (sb)
+               : time_type == time_atime ? get_stat_atime (sb)
+               : get_stat_ctime (sb)),
+               sb->st_uid);
+    }
+  else
+    {
+      dui_to_print = dui;
+    }

   if (n_alloc == 0)
     {
+      size_t i;
       n_alloc = level + 10;
       dulvl = xcalloc (n_alloc, sizeof *dulvl);
+      if(opt_user_sizes)
+        {
+          for (i=0; i<n_alloc; i++)
+            {
+              dulvl[i].ent.user_size = xcalloc (65536, sizeof (uintmax_t));
+              dulvl[i].subdir.user_size = xcalloc (65536, sizeof (uintmax_t));
+            }
+        }
     }
   else
     {
@@ -613,14 +747,23 @@ process_file (FTS *fts, FTSENT *ent)
              Clear the accumulators for *all* levels between prev_level
              and the current one.  The depth may change dramatically,
              e.g., from 1 to 10.  */
+          size_t i;

           if (n_alloc <= level)
             {
               dulvl = xnrealloc (dulvl, level, 2 * sizeof *dulvl);
+              if(opt_user_sizes)
+                {
+                  for (i=n_alloc; i<level*2; i++)
+                    {
+                      dulvl[i].ent.user_size = xcalloc (65536, sizeof
(uintmax_t));
+                      dulvl[i].subdir.user_size = xcalloc (65536,
sizeof (uintmax_t));
+                    }
+                }
               n_alloc = level * 2;
             }

-          for (size_t i = prev_level + 1; i <= level; i++)
+          for (i = prev_level + 1; i <= level; i++)
             {
               duinfo_init (&dulvl[i].ent);
               duinfo_init (&dulvl[i].subdir);
@@ -666,6 +809,18 @@ process_file (FTS *fts, FTSENT *ent)
         print_size (&dui_to_print, file);
     }

+  if(opt_user_sizes)
+    {
+      if (dui.user_size != NULL)
+        {
+          free(dui.user_size);
+        }
+      if (dui_to_print.user_size != NULL)
+        {
+          free(dui_to_print.user_size);
+        }
+    }
+
   return ok;
 }

@@ -678,7 +833,6 @@ static bool
 du_files (char **files, int bit_flags)
 {
   bool ok = true;
-
   if (*files)
     {
       FTS *fts = xfts_open (files, bit_flags, NULL);
@@ -755,7 +909,7 @@ main (int argc, char **argv)
   while (true)
     {
       int oi = -1;
-      int c = getopt_long (argc, argv, "0abd:chHklmst:xB:DLPSX:",
+      int c = getopt_long (argc, argv, "0abd:chHklmst:uxB:DLPSX:",
                            long_options, &oi);
       if (c == -1)
         break;
@@ -850,6 +1004,11 @@ main (int argc, char **argv)
           }
           break;

+        case 'u':
+          tot_dui.user_size = xcalloc (65536, sizeof (uintmax_t));
+          opt_user_sizes = true;
+          break;
+
         case 'x':
           bit_flags |= FTS_XDEV;
           break;
-- 
2.10.2

Attachment: 0001-Added-user-subtotal-repoting-to-du.patch
Description: Text Data


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