Documentation/config.txt (and repo-config manpage): mark-up fix.

diff --git a/upload-pack.c b/upload-pack.c
index 7f7df2afd3c4640630f54bad96bfe3c952200c48..c568ef066c9e7e0021468cfe7cb904f40ac477f1 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -1,6 +1,3 @@
-#include <signal.h>
-#include <sys/wait.h>
-#include <sys/poll.h>
 #include "cache.h"
 #include "refs.h"
 #include "pkt-line.h"
@@ -22,6 +19,10 @@ static const char upload_pack_usage[] = "git-upload-pack [--strict] [--timeout=n
 #define COMMON_KNOWN   (1u << 14)
 #define REACHABLE      (1u << 15)
 
+#define SHALLOW                (1u << 16)
+#define NOT_SHALLOW    (1u << 17)
+#define CLIENT_SHALLOW (1u << 18)
+
 static unsigned long oldest_have;
 
 static int multi_ack, nr_our_refs;
@@ -134,6 +135,8 @@ static void create_pack_file(void)
                } else {
                        for (i = 0; i < want_obj.nr; i++) {
                                struct object *o = want_obj.objects[i].item;
+                               /* why??? */
+                               o->flags &= ~UNINTERESTING;
                                add_pending_object(&revs, o, NULL);
                        }
                        for (i = 0; i < have_obj.nr; i++) {
@@ -486,8 +489,9 @@ static int get_common_commits(void)
 
 static void receive_needs(void)
 {
+       struct object_array shallows = {0, 0, NULL};
        static char line[1000];
-       int len;
+       int len, depth = 0;
 
        for (;;) {
                struct object *o;
@@ -495,8 +499,29 @@ static void receive_needs(void)
                len = packet_read_line(0, line, sizeof(line));
                reset_timeout();
                if (!len)
-                       return;
+                       break;
 
+               if (!strncmp("shallow ", line, 8)) {
+                       unsigned char sha1[20];
+                       struct object *object;
+                       use_thin_pack = 0;
+                       if (get_sha1(line + 8, sha1))
+                               die("invalid shallow line: %s", line);
+                       object = parse_object(sha1);
+                       if (!object)
+                               die("did not find object for %s", line);
+                       object->flags |= CLIENT_SHALLOW;
+                       add_object_array(object, NULL, &shallows);
+                       continue;
+               }
+               if (!strncmp("deepen ", line, 7)) {
+                       char *end;
+                       use_thin_pack = 0;
+                       depth = strtol(line + 7, &end, 0);
+                       if (end == line + 7 || depth <= 0)
+                               die("Invalid deepen: %s", line);
+                       continue;
+               }
                if (strncmp("want ", line, 5) ||
                    get_sha1_hex(line+5, sha1_buf))
                        die("git-upload-pack: protocol error, "
@@ -528,11 +553,58 @@ static void receive_needs(void)
                        add_object_array(o, NULL, &want_obj);
                }
        }
+       if (depth == 0 && shallows.nr == 0)
+               return;
+       if (depth > 0) {
+               struct commit_list *result, *backup;
+               int i;
+               backup = result = get_shallow_commits(&want_obj, depth,
+                       SHALLOW, NOT_SHALLOW);
+               while (result) {
+                       struct object *object = &result->item->object;
+                       if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
+                               packet_write(1, "shallow %s",
+                                               sha1_to_hex(object->sha1));
+                               register_shallow(object->sha1);
+                       }
+                       result = result->next;
+               }
+               free_commit_list(backup);
+               for (i = 0; i < shallows.nr; i++) {
+                       struct object *object = shallows.objects[i].item;
+                       if (object->flags & NOT_SHALLOW) {
+                               struct commit_list *parents;
+                               packet_write(1, "unshallow %s",
+                                       sha1_to_hex(object->sha1));
+                               object->flags &= ~CLIENT_SHALLOW;
+                               /* make sure the real parents are parsed */
+                               unregister_shallow(object->sha1);
+                               object->parsed = 0;
+                               parse_commit((struct commit *)object);
+                               parents = ((struct commit *)object)->parents;
+                               while (parents) {
+                                       add_object_array(&parents->item->object,
+                                                       NULL, &want_obj);
+                                       parents = parents->next;
+                               }
+                       }
+                       /* make sure commit traversal conforms to client */
+                       register_shallow(object->sha1);
+               }
+               packet_flush(1);
+       } else
+               if (shallows.nr > 0) {
+                       int i;
+                       for (i = 0; i < shallows.nr; i++)
+                               register_shallow(shallows.objects[i].item->sha1);
+               }
+       free(shallows.objects);
 }
 
 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
 {
-       static const char *capabilities = "multi_ack thin-pack side-band side-band-64k ofs-delta";
+       static const char *capabilities = "multi_ack thin-pack side-band"
+               " side-band-64k ofs-delta shallow";
        struct object *o = parse_object(sha1);
 
        if (!o)