The use case is

    tar -xzf bigproject.tar.gz
    cd bigproject
    git init
    git add .
    # git grep or something

The first add will generate a bunch of loose objects. With --bulk, all
of them are forced into a single pack instead, less clutter on disk
and maybe faster object access.

This is the equivalent of "git -c core.bigFileThreshold=0 add ." so
it's not really a new functionality. Just some convenient and public

Signed-off-by: Nguyễn Thái Ngọc Duy <>
 Interestingly index_stream() seems a bit slower than standard
 index_core(). Perhaps mmap() is faster than a series of read() for
 small files. Room for improvement later.

 Documentation/git-add.txt |  6 ++++++
 builtin/add.c             | 10 +++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt
index 48754cb..36a77f6 100644
--- a/Documentation/git-add.txt
+++ b/Documentation/git-add.txt
@@ -160,6 +160,12 @@ today's "git add <pathspec>...", ignoring removed files.
        be ignored, no matter if they are already present in the work
        tree or not.
+       Normally new objects are indexed and stored in loose format,
+       one file per new object in "$GIT_DIR/objects". This option
+       forces putting all objects into a single new pack. This may
+       be useful when you need to add a lot of files initially.
        This option can be used to separate command-line options from
        the list of files, (useful when filenames might be mistaken
diff --git a/builtin/add.c b/builtin/add.c
index 226f758..40cbb71 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -336,7 +336,7 @@ static struct lock_file lock_file;
 static const char ignore_error[] =
 N_("The following paths are ignored by one of your .gitignore files:\n");
-static int verbose, show_only, ignored_too, refresh_only;
+static int verbose, show_only, ignored_too, refresh_only, bulk_index;
 static int ignore_add_errors, intent_to_add, ignore_missing;
 #define ADDREMOVE_DEFAULT 0 /* Change to 1 in Git 2.0 */
@@ -368,6 +368,7 @@ static struct option builtin_add_options[] = {
        OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the 
        OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files 
which cannot be added because of errors")),
        OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even 
missing - files are ignored in dry run")),
+       OPT_BOOL( 0 , "bulk", &bulk_index, N_("pack all objects instead of 
creating loose ones")),
@@ -560,6 +561,13 @@ int cmd_add(int argc, const char **argv, const char 
+       if (bulk_index)
+               /*
+                * Pretend all blobs are "large" files, forcing them
+                * all into a pack
+                */
+               big_file_threshold = 0;
        if ((flags & ADD_CACHE_IMPLICIT_DOT) && prefix) {

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