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author | Derrick Stolee <derrickstolee@github.com> | 2022-08-09 13:11:41 (GMT) |
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committer | Junio C Hamano <gitster@pobox.com> | 2022-08-10 21:07:37 (GMT) |
commit | 55568919616429fbc209880cf189a3adaceb6093 (patch) | |
tree | ad443684968b415f4be585093bbc320e98671c5e /builtin/clone.c | |
parent | 53a50892be20a91fb0dcf572a641ce2a79af1a38 (diff) | |
download | git-55568919616429fbc209880cf189a3adaceb6093.zip git-55568919616429fbc209880cf189a3adaceb6093.tar.gz git-55568919616429fbc209880cf189a3adaceb6093.tar.bz2 |
clone: add --bundle-uri option
Cloning a remote repository is one of the most expensive operations in
Git. The server can spend a lot of CPU time generating a pack-file for
the client's request. The amount of data can clog the network for a long
time, and the Git protocol is not resumable. For users with poor network
connections or are located far away from the origin server, this can be
especially painful.
Add a new '--bundle-uri' option to 'git clone' to bootstrap a clone from
a bundle. If the user is aware of a bundle server, then they can tell
Git to bootstrap the new repository with these bundles before fetching
the remaining objects from the origin server.
Reviewed-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/clone.c')
-rw-r--r-- | builtin/clone.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/builtin/clone.c b/builtin/clone.c index c4ff464..4224d56 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -34,6 +34,7 @@ #include "list-objects-filter-options.h" #include "hook.h" #include "bundle.h" +#include "bundle-uri.h" /* * Overall FIXMEs: @@ -77,6 +78,7 @@ static int option_filter_submodules = -1; /* unspecified */ static int config_filter_submodules = -1; /* unspecified */ static struct string_list server_options = STRING_LIST_INIT_NODUP; static int option_remote_submodules; +static const char *bundle_uri; static int recurse_submodules_cb(const struct option *opt, const char *arg, int unset) @@ -160,6 +162,8 @@ static struct option builtin_clone_options[] = { N_("any cloned submodules will use their remote-tracking branch")), OPT_BOOL(0, "sparse", &option_sparse_checkout, N_("initialize sparse-checkout file to include only files at root")), + OPT_STRING(0, "bundle-uri", &bundle_uri, + N_("uri"), N_("a URI for downloading bundles before fetching from origin remote")), OPT_END() }; @@ -1232,6 +1236,17 @@ int cmd_clone(int argc, const char **argv, const char *prefix) if (transport->smart_options && !deepen && !filter_options.choice) transport->smart_options->check_self_contained_and_connected = 1; + /* + * Before fetching from the remote, download and install bundle + * data from the --bundle-uri option. + */ + if (bundle_uri) { + /* At this point, we need the_repository to match the cloned repo. */ + repo_init(the_repository, git_dir, work_tree); + if (fetch_bundle_uri(the_repository, bundle_uri)) + warning(_("failed to fetch objects from bundle URI '%s'"), + bundle_uri); + } strvec_push(&transport_ls_refs_options.ref_prefixes, "HEAD"); refspec_ref_prefixes(&remote->fetch, |