Add hash_sha1_file()

diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt
index 2d67d3911ed9e6081534f5311b0a76c632f73a6d..f52e8fa8bfb6cd1b121eab7e8594368f5b1c6513 100644 (file)
--- a/Documentation/git-pack-objects.txt
+++ b/Documentation/git-pack-objects.txt
@@ -3,12 +3,15 @@ git-pack-objects(1)
 
 NAME
 ----
-git-pack-objects - Create a packed archive of objects.
+git-pack-objects - Create a packed archive of objects
 
 
 SYNOPSIS
 --------
-'git-pack-objects' [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list
+[verse]
+'git-pack-objects' [-q] [--no-reuse-delta] [--non-empty]
+       [--local] [--incremental] [--window=N] [--depth=N]
+       [--revs [--unpacked | --all]*] [--stdout | base-name] < object-list
 
 
 DESCRIPTION
@@ -32,6 +35,10 @@ Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
 any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
 enables git to read from such an archive.
 
+In a packed archive, an object is either stored as a compressed
+whole, or as a difference from some other object.  The latter is
+often called a delta.
+
 
 OPTIONS
 -------
@@ -49,8 +56,26 @@ base-name::
        Write the pack contents (what would have been written to
        .pack file) out to the standard output.
 
---window and --depth::
-       These two options affects how the objects contained in
+--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 specified to be
+       included.
+
+--window=[N], --depth=[N]::
+       These two options affect how the objects contained in
        the pack are stored using delta compression.  The
        objects are first internally sorted by type, size and
        optionally names and compared against the other objects
@@ -59,6 +84,7 @@ base-name::
        it too deep affects the performance on the unpacker
        side, because delta data needs to be applied that many
        times to get to the necessary object.
+       The default value for both --window and --depth is 10.
 
 --incremental::
        This flag causes an object already in a pack ignored
@@ -74,6 +100,18 @@ base-name::
         Only create a packed archive if it would contain at
         least one object.
 
+-q::
+       This flag makes the command not to report its progress
+       on the standard error stream.
+
+--no-reuse-delta::
+       When creating a packed archive in a repository that
+       has existing packs, the command reuses existing deltas.
+       This sometimes results in a slightly suboptimal pack.
+       This flag tells the command not to reuse existing deltas
+       but compute them from scratch.
+
+
 Author
 ------
 Written by Linus Torvalds <torvalds@osdl.org>
@@ -82,8 +120,9 @@ Documentation
 -------------
 Documentation by Junio C Hamano
 
-See-Also
+See Also
 --------
+gitlink:git-rev-list[1]
 gitlink:git-repack[1]
 gitlink:git-prune-packed[1]