l10n: Update Catalan translation
[gitweb.git] / fetch-pack.c
index afb8b05024823981be9bedfaa70f7301c6f7076c..fbbc99c88856a773326e4bb310d30fe3021e2333 100644 (file)
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include "lockfile.h"
 #include "refs.h"
 #include "pkt-line.h"
@@ -15,6 +16,7 @@
 #include "version.h"
 #include "prio-queue.h"
 #include "sha1-array.h"
+#include "oidset.h"
 
 static int transfer_unpack_limit = -1;
 static int fetch_unpack_limit = -1;
@@ -78,7 +80,7 @@ static void cache_one_alternate(const char *refname,
                                void *vcache)
 {
        struct alternate_object_cache *cache = vcache;
-       struct object *obj = parse_object(oid->hash);
+       struct object *obj = parse_object(oid);
 
        if (!obj || (obj->flags & ALTERNATE))
                return;
@@ -118,9 +120,9 @@ static void rev_list_push(struct commit *commit, int mark)
        }
 }
 
-static int rev_list_insert_ref(const char *refname, const unsigned char *sha1)
+static int rev_list_insert_ref(const char *refname, const struct object_id *oid)
 {
-       struct object *o = deref_tag(parse_object(sha1), refname, 0);
+       struct object *o = deref_tag(parse_object(oid), refname, 0);
 
        if (o && o->type == OBJ_COMMIT)
                rev_list_push((struct commit *)o, SEEN);
@@ -131,13 +133,13 @@ static int rev_list_insert_ref(const char *refname, const unsigned char *sha1)
 static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid,
                                   int flag, void *cb_data)
 {
-       return rev_list_insert_ref(refname, oid->hash);
+       return rev_list_insert_ref(refname, oid);
 }
 
 static int clear_marks(const char *refname, const struct object_id *oid,
                       int flag, void *cb_data)
 {
-       struct object *o = deref_tag(parse_object(oid->hash), refname, 0);
+       struct object *o = deref_tag(parse_object(oid), refname, 0);
 
        if (o && o->type == OBJ_COMMIT)
                clear_commit_marks((struct commit *)o,
@@ -183,7 +185,7 @@ static void mark_common(struct commit *commit,
   Get the next rev to send, ignoring the common.
 */
 
-static const unsigned char *get_rev(void)
+static const struct object_id *get_rev(void)
 {
        struct commit *commit = NULL;
 
@@ -222,7 +224,7 @@ static const unsigned char *get_rev(void)
                }
        }
 
-       return commit->object.oid.hash;
+       return &commit->object.oid;
 }
 
 enum ack_type {
@@ -251,7 +253,7 @@ static void consume_shallow_list(struct fetch_pack_args *args, int fd)
        }
 }
 
-static enum ack_type get_ack(int fd, unsigned char *result_sha1)
+static enum ack_type get_ack(int fd, struct object_id *result_oid)
 {
        int len;
        char *line = packet_read_line(fd, &len);
@@ -262,7 +264,7 @@ static enum ack_type get_ack(int fd, unsigned char *result_sha1)
        if (!strcmp(line, "NAK"))
                return NAK;
        if (skip_prefix(line, "ACK ", &arg)) {
-               if (!get_sha1_hex(arg, result_sha1)) {
+               if (!get_oid_hex(arg, result_oid)) {
                        arg += 40;
                        len -= arg - line;
                        if (len < 1)
@@ -293,7 +295,7 @@ static void send_request(struct fetch_pack_args *args,
 
 static void insert_one_alternate_object(struct object *obj)
 {
-       rev_list_insert_ref(NULL, obj->oid.hash);
+       rev_list_insert_ref(NULL, &obj->oid);
 }
 
 #define INITIAL_FLUSH 16
@@ -317,12 +319,12 @@ static int next_flush(struct fetch_pack_args *args, int count)
 }
 
 static int find_common(struct fetch_pack_args *args,
-                      int fd[2], unsigned char *result_sha1,
+                      int fd[2], struct object_id *result_oid,
                       struct ref *refs)
 {
        int fetching;
        int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval;
-       const unsigned char *sha1;
+       const struct object_id *oid;
        unsigned in_vain = 0;
        int got_continue = 0;
        int got_ready = 0;
@@ -340,7 +342,7 @@ static int find_common(struct fetch_pack_args *args,
 
        fetching = 0;
        for ( ; refs ; refs = refs->next) {
-               unsigned char *remote = refs->old_oid.hash;
+               struct object_id *remote = &refs->old_oid;
                const char *remote_hex;
                struct object *o;
 
@@ -354,12 +356,12 @@ static int find_common(struct fetch_pack_args *args,
                 * interested in the case we *know* the object is
                 * reachable and we have already scanned it.
                 */
-               if (((o = lookup_object(remote)) != NULL) &&
+               if (((o = lookup_object(remote->hash)) != NULL) &&
                                (o->flags & COMPLETE)) {
                        continue;
                }
 
-               remote_hex = sha1_to_hex(remote);
+               remote_hex = oid_to_hex(remote);
                if (!fetching) {
                        struct strbuf c = STRBUF_INIT;
                        if (multi_ack == 2)     strbuf_addstr(&c, " multi_ack_detailed");
@@ -394,8 +396,8 @@ static int find_common(struct fetch_pack_args *args,
        if (args->depth > 0)
                packet_buf_write(&req_buf, "deepen %d", args->depth);
        if (args->deepen_since) {
-               unsigned long max_age = approxidate(args->deepen_since);
-               packet_buf_write(&req_buf, "deepen-since %lu", max_age);
+               timestamp_t max_age = approxidate(args->deepen_since);
+               packet_buf_write(&req_buf, "deepen-since %"PRItime, max_age);
        }
        if (args->deepen_not) {
                int i;
@@ -410,25 +412,25 @@ static int find_common(struct fetch_pack_args *args,
        if (args->deepen) {
                char *line;
                const char *arg;
-               unsigned char sha1[20];
+               struct object_id oid;
 
                send_request(args, fd[1], &req_buf);
                while ((line = packet_read_line(fd[0], NULL))) {
                        if (skip_prefix(line, "shallow ", &arg)) {
-                               if (get_sha1_hex(arg, sha1))
+                               if (get_oid_hex(arg, &oid))
                                        die(_("invalid shallow line: %s"), line);
-                               register_shallow(sha1);
+                               register_shallow(&oid);
                                continue;
                        }
                        if (skip_prefix(line, "unshallow ", &arg)) {
-                               if (get_sha1_hex(arg, sha1))
+                               if (get_oid_hex(arg, &oid))
                                        die(_("invalid unshallow line: %s"), line);
-                               if (!lookup_object(sha1))
+                               if (!lookup_object(oid.hash))
                                        die(_("object not found: %s"), line);
                                /* make sure that it is parsed as shallow */
-                               if (!parse_object(sha1))
+                               if (!parse_object(&oid))
                                        die(_("error in object: %s"), line);
-                               if (unregister_shallow(sha1))
+                               if (unregister_shallow(&oid))
                                        die(_("no shallow found: %s"), line);
                                continue;
                        }
@@ -447,9 +449,9 @@ static int find_common(struct fetch_pack_args *args,
 
        flushes = 0;
        retval = -1;
-       while ((sha1 = get_rev())) {
-               packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1));
-               print_verbose(args, "have %s", sha1_to_hex(sha1));
+       while ((oid = get_rev())) {
+               packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid));
+               print_verbose(args, "have %s", oid_to_hex(oid));
                in_vain++;
                if (flush_at <= ++count) {
                        int ack;
@@ -469,10 +471,10 @@ static int find_common(struct fetch_pack_args *args,
 
                        consume_shallow_list(args, fd[0]);
                        do {
-                               ack = get_ack(fd[0], result_sha1);
+                               ack = get_ack(fd[0], result_oid);
                                if (ack)
                                        print_verbose(args, _("got %s %d %s"), "ack",
-                                                     ack, sha1_to_hex(result_sha1));
+                                                     ack, oid_to_hex(result_oid));
                                switch (ack) {
                                case ACK:
                                        flushes = 0;
@@ -483,9 +485,9 @@ static int find_common(struct fetch_pack_args *args,
                                case ACK_ready:
                                case ACK_continue: {
                                        struct commit *commit =
-                                               lookup_commit(result_sha1);
+                                               lookup_commit(result_oid);
                                        if (!commit)
-                                               die(_("invalid commit %s"), sha1_to_hex(result_sha1));
+                                               die(_("invalid commit %s"), oid_to_hex(result_oid));
                                        if (args->stateless_rpc
                                         && ack == ACK_common
                                         && !(commit->object.flags & COMMON)) {
@@ -493,7 +495,7 @@ static int find_common(struct fetch_pack_args *args,
                                                 * on the next RPC request so the peer knows
                                                 * it is in common with us.
                                                 */
-                                               const char *hex = sha1_to_hex(result_sha1);
+                                               const char *hex = oid_to_hex(result_oid);
                                                packet_buf_write(&req_buf, "have %s\n", hex);
                                                state_len = req_buf.len;
                                                /*
@@ -538,10 +540,10 @@ static int find_common(struct fetch_pack_args *args,
        if (!got_ready || !no_done)
                consume_shallow_list(args, fd[0]);
        while (flushes || multi_ack) {
-               int ack = get_ack(fd[0], result_sha1);
+               int ack = get_ack(fd[0], result_oid);
                if (ack) {
                        print_verbose(args, _("got %s (%d) %s"), "ack",
-                                     ack, sha1_to_hex(result_sha1));
+                                     ack, oid_to_hex(result_oid));
                        if (ack == ACK)
                                return 0;
                        multi_ack = 1;
@@ -555,16 +557,16 @@ static int find_common(struct fetch_pack_args *args,
 
 static struct commit_list *complete;
 
-static int mark_complete(const unsigned char *sha1)
+static int mark_complete(const struct object_id *oid)
 {
-       struct object *o = parse_object(sha1);
+       struct object *o = parse_object(oid);
 
        while (o && o->type == OBJ_TAG) {
                struct tag *t = (struct tag *) o;
                if (!t->tagged)
                        break; /* broken repository */
                o->flags |= COMPLETE;
-               o = parse_object(t->tagged->oid.hash);
+               o = parse_object(&t->tagged->oid);
        }
        if (o && o->type == OBJ_COMMIT) {
                struct commit *commit = (struct commit *)o;
@@ -579,11 +581,11 @@ static int mark_complete(const unsigned char *sha1)
 static int mark_complete_oid(const char *refname, const struct object_id *oid,
                             int flag, void *cb_data)
 {
-       return mark_complete(oid->hash);
+       return mark_complete(oid);
 }
 
 static void mark_recent_complete_commits(struct fetch_pack_args *args,
-                                        unsigned long cutoff)
+                                        timestamp_t cutoff)
 {
        while (complete && cutoff <= complete->item->date) {
                print_verbose(args, _("Marking %s as complete"),
@@ -592,13 +594,38 @@ static void mark_recent_complete_commits(struct fetch_pack_args *args,
        }
 }
 
+static void add_refs_to_oidset(struct oidset *oids, struct ref *refs)
+{
+       for (; refs; refs = refs->next)
+               oidset_insert(oids, &refs->old_oid);
+}
+
+static int tip_oids_contain(struct oidset *tip_oids,
+                           struct ref *unmatched, struct ref *newlist,
+                           const struct object_id *id)
+{
+       /*
+        * Note that this only looks at the ref lists the first time it's
+        * called. This works out in filter_refs() because even though it may
+        * add to "newlist" between calls, the additions will always be for
+        * oids that are already in the set.
+        */
+       if (!tip_oids->map.tablesize) {
+               add_refs_to_oidset(tip_oids, unmatched);
+               add_refs_to_oidset(tip_oids, newlist);
+       }
+       return oidset_contains(tip_oids, id);
+}
+
 static void filter_refs(struct fetch_pack_args *args,
                        struct ref **refs,
                        struct ref **sought, int nr_sought)
 {
        struct ref *newlist = NULL;
        struct ref **newtail = &newlist;
+       struct ref *unmatched = NULL;
        struct ref *ref, *next;
+       struct oidset tip_oids = OIDSET_INIT;
        int i;
 
        i = 0;
@@ -631,24 +658,28 @@ static void filter_refs(struct fetch_pack_args *args,
                        ref->next = NULL;
                        newtail = &ref->next;
                } else {
-                       free(ref);
+                       ref->next = unmatched;
+                       unmatched = ref;
                }
        }
 
        /* Append unmatched requests to the list */
        for (i = 0; i < nr_sought; i++) {
-               unsigned char sha1[20];
+               struct object_id oid;
+               const char *p;
 
                ref = sought[i];
                if (ref->match_status != REF_NOT_MATCHED)
                        continue;
-               if (get_sha1_hex(ref->name, sha1) ||
-                   ref->name[40] != '\0' ||
-                   hashcmp(sha1, ref->old_oid.hash))
+               if (parse_oid_hex(ref->name, &oid, &p) ||
+                   *p != '\0' ||
+                   oidcmp(&oid, &ref->old_oid))
                        continue;
 
                if ((allow_unadvertised_object_request &
-                   (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1))) {
+                    (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)) ||
+                   tip_oids_contain(&tip_oids, unmatched, newlist,
+                                    &ref->old_oid)) {
                        ref->match_status = REF_MATCHED;
                        *newtail = copy_ref(ref);
                        newtail = &(*newtail)->next;
@@ -656,12 +687,19 @@ static void filter_refs(struct fetch_pack_args *args,
                        ref->match_status = REF_UNADVERTISED_NOT_ALLOWED;
                }
        }
+
+       oidset_clear(&tip_oids);
+       for (ref = unmatched; ref; ref = next) {
+               next = ref->next;
+               free(ref);
+       }
+
        *refs = newlist;
 }
 
 static void mark_alternate_complete(struct object *obj)
 {
-       mark_complete(obj->oid.hash);
+       mark_complete(&obj->oid);
 }
 
 static int everything_local(struct fetch_pack_args *args,
@@ -670,7 +708,7 @@ static int everything_local(struct fetch_pack_args *args,
 {
        struct ref *ref;
        int retval;
-       unsigned long cutoff = 0;
+       timestamp_t cutoff = 0;
 
        save_commit_buffer = 0;
 
@@ -680,7 +718,7 @@ static int everything_local(struct fetch_pack_args *args,
                if (!has_object_file(&ref->old_oid))
                        continue;
 
-               o = parse_object(ref->old_oid.hash);
+               o = parse_object(&ref->old_oid);
                if (!o)
                        continue;
 
@@ -724,17 +762,17 @@ static int everything_local(struct fetch_pack_args *args,
        filter_refs(args, refs, sought, nr_sought);
 
        for (retval = 1, ref = *refs; ref ; ref = ref->next) {
-               const unsigned char *remote = ref->old_oid.hash;
+               const struct object_id *remote = &ref->old_oid;
                struct object *o;
 
-               o = lookup_object(remote);
+               o = lookup_object(remote->hash);
                if (!o || !(o->flags & COMPLETE)) {
                        retval = 0;
-                       print_verbose(args, "want %s (%s)", sha1_to_hex(remote),
+                       print_verbose(args, "want %s (%s)", oid_to_hex(remote),
                                      ref->name);
                        continue;
                }
-               print_verbose(args, _("already have %s (%s)"), sha1_to_hex(remote),
+               print_verbose(args, _("already have %s (%s)"), oid_to_hex(remote),
                              ref->name);
        }
        return retval;
@@ -873,7 +911,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
                                 char **pack_lockfile)
 {
        struct ref *ref = copy_ref_list(orig_ref);
-       unsigned char sha1[20];
+       struct object_id oid;
        const char *agent_feature;
        int agent_len;
 
@@ -945,7 +983,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
                packet_flush(fd[1]);
                goto all_done;
        }
-       if (find_common(args, fd, sha1, ref) < 0)
+       if (find_common(args, fd, &oid, ref) < 0)
                if (!args->keep_pack)
                        /* When cloning, it is not unusual to have
                         * no common commit.