[PATCH v4 05/15] remote-curl: add object filtering for partial clone

[Jeff Hostetler <git@jeffhostetler.com>]

From: Jeff Hostetler <jeffhost@microsoft.com>

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
---
 Documentation/gitremote-helpers.txt |  4 ++++
 remote-curl.c                       | 11 +++++++++++
 2 files changed, 15 insertions(+)

diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt
index 1ceab89..4bb11bf 100644
--- a/Documentation/gitremote-helpers.txt
+++ b/Documentation/gitremote-helpers.txt
@@ -472,6 +472,10 @@ set by Git if the remote helper has the 'option' capability.
 'option no-haves' {'true'|'false'}::
 	Do not send "have" lines.
 
+'option filter <filter-spec>'::
+	An object filter specification for partial clone or fetch
+	as described in rev-list.
+
 SEE ALSO
 --------
 linkgit:git-remote[1]
diff --git a/remote-curl.c b/remote-curl.c
index 34a81b8..c2f28ab 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -13,6 +13,7 @@
 #include "credential.h"
 #include "sha1-array.h"
 #include "send-pack.h"
+#include "list-objects-filter-options.h"
 
 static struct remote *remote;
 /* always ends with a trailing slash */
@@ -22,6 +23,7 @@ struct options {
 	int verbosity;
 	unsigned long depth;
 	char *deepen_since;
+	char *partial_clone_filter;
 	struct string_list deepen_not;
 	struct string_list push_options;
 	unsigned progress : 1,
@@ -165,6 +167,9 @@ static int set_option(const char *name, const char *value)
 	} else if (!strcmp(name, "no-haves")) {
 		options.no_haves = 1;
 		return 0;
+	} else if (!strcmp(name, "filter")) {
+		options.partial_clone_filter = xstrdup(value);
+		return 0;
 	} else {
 		return 1 /* unsupported */;
 	}
@@ -834,6 +839,12 @@ static int fetch_git(struct discovery *heads,
 		argv_array_push(&args, "--from-promisor");
 	if (options.no_haves)
 		argv_array_push(&args, "--no-haves");
+	if (options.partial_clone_filter) {
+		struct list_objects_filter_options filter_options;
+		parse_list_objects_filter(&filter_options,
+					  options.partial_clone_filter);
+		list_objects_filter_push_arg(&args, &filter_options);
+	}
 	argv_array_push(&args, url.buf);
 
 	for (i = 0; i < nr_heads; i++) {
-- 
2.9.3