Merge branch 'jc/pack'

* jc/pack:
  pack-objects: document --revs, --unpacked and --all.
  pack-objects --unpacked=<existing pack> option.
  pack-objects: further work on internal rev-list logic.
  pack-objects: run rev-list equivalent internally.
  Separate object listing routines out of rev-list

Documentation/git-pack-objects.txt

@@ -11,7 +11,7 @@ SYNOPSIS
 [verse]
 'git-pack-objects' [-q] [--no-reuse-delta] [--non-empty]
 	[--local] [--incremental] [--window=N] [--depth=N]
-	{--stdout | base-name} < object-list
+	[--revs [--unpacked | --all]*] [--stdout | base-name] < object-list
 
 
 DESCRIPTION
@@ -56,6 +56,24 @@ base-name::
 	Write the pack contents (what would have been written to
 	.pack file) out to the standard output.
 
+--revs::
+	Read the revision arguments from the standard input, instead of
+	individual object names.  The revision arguments are processed
+	the same way as gitlink:git-rev-list[1] with `--objects` flag
+	uses its `commit` arguments to build the list of objects it
+	outputs.  The objects on the resulting list are packed.
+
+--unpacked::
+	This implies `--revs`.  When processing the list of
+	revision arguments read from the standard input, limit
+	the objects packed to those that are not already packed.
+
+--all::
+	This implies `--revs`.  In addition to the list of
+	revision arguments read from the standard input, pretend
+	as if all refs under `$GIT_DIR/refs` are specifed to be
+	included.
+
 --window and --depth::
 	These two options affects how the objects contained in
 	the pack are stored using delta compression.  The
@@ -103,6 +121,7 @@ Documentation by Junio C Hamano
 
 See Also
 --------
+gitlink:git-rev-list[1]
 gitlink:git-repack[1]
 gitlink:git-prune-packed[1]
 

Makefile

@@ -235,7 +235,7 @@ XDIFF_LIB=xdiff/lib.a
 
 LIB_H = \
 	archive.h blob.h cache.h commit.h csum-file.h delta.h \
-	diff.h object.h pack.h pkt-line.h quote.h refs.h sideband.h \
+	diff.h object.h pack.h pkt-line.h quote.h refs.h list-objects.h sideband.h \
 	run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
 	tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h
 
@@ -252,7 +252,7 @@ LIB_OBJS = \
 	server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
 	tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
 	fetch-clone.o revision.o pager.o tree-walk.o xdiff-interface.o \
-	write_or_die.o trace.o \
+	write_or_die.o trace.o list-objects.o \
 	alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS) \
 	color.o wt-status.o
 

builtin-count-objects.c

@@ -62,7 +62,7 @@ static void count_objects(DIR *d, char *path, int len, int verbose,
 		hex[40] = 0;
 		if (get_sha1_hex(hex, sha1))
 			die("internal error");
-		if (has_sha1_pack(sha1))
+		if (has_sha1_pack(sha1, NULL))
 			(*packed_loose)++;
 	}
 }