builtin-count-objects: make it official.

Remove the shell-script version, make the hardlink from the git
binary, and update the documentation to describe a new option.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Documentation/git-count-objects.txt

@@ -7,13 +7,23 @@ git-count-objects - Reports on unpacked objects
 
 SYNOPSIS
 --------
-'git-count-objects'
+'git-count-objects' [-v]
 
 DESCRIPTION
 -----------
 This counts the number of unpacked object files and disk space consumed by
 them, to help you decide when it is a good time to repack.
 
+
+OPTIONS
+-------
+-v::
+	In addition to the number of loose objects and disk
+	space consumed, it reports the number of in-pack
+	objects, and number of objects that can be removed by
+	running `git-prune-packed`.
+
+
 Author
 ------
 Written by Junio C Hamano <junkio@cox.net>

Makefile

@@ -115,7 +115,7 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 SCRIPT_SH = \
 	git-add.sh git-bisect.sh git-branch.sh git-checkout.sh \
 	git-cherry.sh git-clean.sh git-clone.sh git-commit.sh \
-	git-count-objects.sh git-diff.sh git-fetch.sh \
+	git-diff.sh git-fetch.sh \
 	git-format-patch.sh git-ls-remote.sh \
 	git-merge-one-file.sh git-parse-remote.sh \
 	git-prune.sh git-pull.sh git-push.sh git-rebase.sh \
@@ -167,7 +167,8 @@ PROGRAMS = \
 	git-name-rev$X git-pack-redundant$X git-repo-config$X git-var$X \
 	git-describe$X git-merge-tree$X git-blame$X git-imap-send$X
 
-BUILT_INS = git-log$X
+BUILT_INS = git-log$X \
+	git-count-objects$X
 
 # what 'all' will build and 'install' will install, in gitexecdir
 ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)

git-count-objects.sh

-#!/bin/sh
-#
-# Copyright (c) 2005 Junio C Hamano
-#
-
-GIT_DIR=`git-rev-parse --git-dir` || exit $?
-
-dc </dev/null 2>/dev/null || {
-	# This is not a real DC at all -- it just knows how
-	# this script feeds DC and does the computation itself.
-	dc () {
-		while read a b
-		do
-			case $a,$b in
-			0,)	acc=0 ;;
-			*,+)	acc=$(($acc + $a)) ;;
-			p,)	echo "$acc" ;;
-			esac
-		done
-	}
-}
-
-echo $(find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null | wc -l) objects, \
-$({
-    echo 0
-    # "no-such" is to help Darwin folks by not using xargs -r.
-    find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null |
-    xargs du -k "$GIT_DIR/objects/no-such" 2>/dev/null |
-    sed -e 's/[ 	].*/ +/'
-    echo p
-} | dc) kilobytes