Code

git-log: detect dup and fdopen failure
[git.git] / connect.c
index 375739205f72062c7b51e16ca4cdecc053e1c2da..a5afd2a5361d840347eb64a3a73db9d8dcbd1057 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -4,6 +4,7 @@
 #include "quote.h"
 #include "refs.h"
 #include "run-command.h"
+#include "remote.h"
 
 static char *server_capabilities;
 
@@ -128,245 +129,6 @@ int path_match(const char *path, int nr, char **match)
        return 0;
 }
 
-struct refspec {
-       char *src;
-       char *dst;
-       char force;
-};
-
-/*
- * A:B means fast forward remote B with local A.
- * +A:B means overwrite remote B with local A.
- * +A is a shorthand for +A:A.
- * A is a shorthand for A:A.
- * :B means delete remote B.
- */
-static struct refspec *parse_ref_spec(int nr_refspec, char **refspec)
-{
-       int i;
-       struct refspec *rs = xcalloc(sizeof(*rs), (nr_refspec + 1));
-       for (i = 0; i < nr_refspec; i++) {
-               char *sp, *dp, *ep;
-               sp = refspec[i];
-               if (*sp == '+') {
-                       rs[i].force = 1;
-                       sp++;
-               }
-               ep = strchr(sp, ':');
-               if (ep) {
-                       dp = ep + 1;
-                       *ep = 0;
-               }
-               else
-                       dp = sp;
-               rs[i].src = sp;
-               rs[i].dst = dp;
-       }
-       rs[nr_refspec].src = rs[nr_refspec].dst = NULL;
-       return rs;
-}
-
-static int count_refspec_match(const char *pattern,
-                              struct ref *refs,
-                              struct ref **matched_ref)
-{
-       int patlen = strlen(pattern);
-       struct ref *matched_weak = NULL;
-       struct ref *matched = NULL;
-       int weak_match = 0;
-       int match = 0;
-
-       for (weak_match = match = 0; refs; refs = refs->next) {
-               char *name = refs->name;
-               int namelen = strlen(name);
-               int weak_match;
-
-               if (namelen < patlen ||
-                   memcmp(name + namelen - patlen, pattern, patlen))
-                       continue;
-               if (namelen != patlen && name[namelen - patlen - 1] != '/')
-                       continue;
-
-               /* A match is "weak" if it is with refs outside
-                * heads or tags, and did not specify the pattern
-                * in full (e.g. "refs/remotes/origin/master") or at
-                * least from the toplevel (e.g. "remotes/origin/master");
-                * otherwise "git push $URL master" would result in
-                * ambiguity between remotes/origin/master and heads/master
-                * at the remote site.
-                */
-               if (namelen != patlen &&
-                   patlen != namelen - 5 &&
-                   prefixcmp(name, "refs/heads/") &&
-                   prefixcmp(name, "refs/tags/")) {
-                       /* We want to catch the case where only weak
-                        * matches are found and there are multiple
-                        * matches, and where more than one strong
-                        * matches are found, as ambiguous.  One
-                        * strong match with zero or more weak matches
-                        * are acceptable as a unique match.
-                        */
-                       matched_weak = refs;
-                       weak_match++;
-               }
-               else {
-                       matched = refs;
-                       match++;
-               }
-       }
-       if (!matched) {
-               *matched_ref = matched_weak;
-               return weak_match;
-       }
-       else {
-               *matched_ref = matched;
-               return match;
-       }
-}
-
-static void link_dst_tail(struct ref *ref, struct ref ***tail)
-{
-       **tail = ref;
-       *tail = &ref->next;
-       **tail = NULL;
-}
-
-static struct ref *try_explicit_object_name(const char *name)
-{
-       unsigned char sha1[20];
-       struct ref *ref;
-       int len;
-
-       if (!*name) {
-               ref = xcalloc(1, sizeof(*ref) + 20);
-               strcpy(ref->name, "(delete)");
-               hashclr(ref->new_sha1);
-               return ref;
-       }
-       if (get_sha1(name, sha1))
-               return NULL;
-       len = strlen(name) + 1;
-       ref = xcalloc(1, sizeof(*ref) + len);
-       memcpy(ref->name, name, len);
-       hashcpy(ref->new_sha1, sha1);
-       return ref;
-}
-
-static int match_explicit_refs(struct ref *src, struct ref *dst,
-                              struct ref ***dst_tail, struct refspec *rs)
-{
-       int i, errs;
-       for (i = errs = 0; rs[i].src; i++) {
-               struct ref *matched_src, *matched_dst;
-
-               matched_src = matched_dst = NULL;
-               switch (count_refspec_match(rs[i].src, src, &matched_src)) {
-               case 1:
-                       break;
-               case 0:
-                       /* The source could be in the get_sha1() format
-                        * not a reference name.  :refs/other is a
-                        * way to delete 'other' ref at the remote end.
-                        */
-                       matched_src = try_explicit_object_name(rs[i].src);
-                       if (matched_src)
-                               break;
-                       errs = 1;
-                       error("src refspec %s does not match any.",
-                             rs[i].src);
-                       break;
-               default:
-                       errs = 1;
-                       error("src refspec %s matches more than one.",
-                             rs[i].src);
-                       break;
-               }
-               switch (count_refspec_match(rs[i].dst, dst, &matched_dst)) {
-               case 1:
-                       break;
-               case 0:
-                       if (!memcmp(rs[i].dst, "refs/", 5)) {
-                               int len = strlen(rs[i].dst) + 1;
-                               matched_dst = xcalloc(1, sizeof(*dst) + len);
-                               memcpy(matched_dst->name, rs[i].dst, len);
-                               link_dst_tail(matched_dst, dst_tail);
-                       }
-                       else if (!strcmp(rs[i].src, rs[i].dst) &&
-                                matched_src) {
-                               /* pushing "master:master" when
-                                * remote does not have master yet.
-                                */
-                               int len = strlen(matched_src->name) + 1;
-                               matched_dst = xcalloc(1, sizeof(*dst) + len);
-                               memcpy(matched_dst->name, matched_src->name,
-                                      len);
-                               link_dst_tail(matched_dst, dst_tail);
-                       }
-                       else {
-                               errs = 1;
-                               error("dst refspec %s does not match any "
-                                     "existing ref on the remote and does "
-                                     "not start with refs/.", rs[i].dst);
-                       }
-                       break;
-               default:
-                       errs = 1;
-                       error("dst refspec %s matches more than one.",
-                             rs[i].dst);
-                       break;
-               }
-               if (errs)
-                       continue;
-               if (matched_dst->peer_ref) {
-                       errs = 1;
-                       error("dst ref %s receives from more than one src.",
-                             matched_dst->name);
-               }
-               else {
-                       matched_dst->peer_ref = matched_src;
-                       matched_dst->force = rs[i].force;
-               }
-       }
-       return -errs;
-}
-
-static struct ref *find_ref_by_name(struct ref *list, const char *name)
-{
-       for ( ; list; list = list->next)
-               if (!strcmp(list->name, name))
-                       return list;
-       return NULL;
-}
-
-int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail,
-              int nr_refspec, char **refspec, int all)
-{
-       struct refspec *rs = parse_ref_spec(nr_refspec, refspec);
-
-       if (nr_refspec)
-               return match_explicit_refs(src, dst, dst_tail, rs);
-
-       /* pick the remainder */
-       for ( ; src; src = src->next) {
-               struct ref *dst_peer;
-               if (src->peer_ref)
-                       continue;
-               dst_peer = find_ref_by_name(dst, src->name);
-               if ((dst_peer && dst_peer->peer_ref) || (!dst_peer && !all))
-                       continue;
-               if (!dst_peer) {
-                       /* Create a new one and link it */
-                       int len = strlen(src->name) + 1;
-                       dst_peer = xcalloc(1, sizeof(*dst_peer) + len);
-                       memcpy(dst_peer->name, src->name, len);
-                       hashcpy(dst_peer->new_sha1, src->new_sha1);
-                       link_dst_tail(dst_peer, dst_tail);
-               }
-               dst_peer->peer_ref = src;
-       }
-       return 0;
-}
-
 enum protocol {
        PROTO_LOCAL = 1,
        PROTO_SSH,
@@ -462,11 +224,10 @@ static int git_tcp_connect_sock(char *host, int flags)
                }
                if (connect(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) {
                        saved_errno = errno;
-                       fprintf(stderr, "%s[%d: %s]: net=%s, errno=%s\n",
+                       fprintf(stderr, "%s[%d: %s]: errno=%s\n",
                                host,
                                cnt,
                                ai_name(ai),
-                               hstrerror(h_errno),
                                strerror(saved_errno));
                        close(sockfd);
                        sockfd = -1;
@@ -553,11 +314,10 @@ static int git_tcp_connect_sock(char *host, int flags)
 
                if (connect(sockfd, (struct sockaddr *)&sa, sizeof sa) < 0) {
                        saved_errno = errno;
-                       fprintf(stderr, "%s[%d: %s]: net=%s, errno=%s\n",
+                       fprintf(stderr, "%s[%d: %s]: errno=%s\n",
                                host,
                                cnt,
                                inet_ntoa(*(struct in_addr *)&sa.sin_addr),
-                               hstrerror(h_errno),
                                strerror(saved_errno));
                        close(sockfd);
                        sockfd = -1;
@@ -628,7 +388,7 @@ static int git_proxy_command_options(const char *var, const char *value)
                }
                if (0 <= matchlen) {
                        /* core.gitproxy = none for kernel.org */
-                       if (matchlen == 4 && 
+                       if (matchlen == 4 &&
                            !memcmp(value, "none", 4))
                                matchlen = 0;
                        git_proxy_command = xmalloc(matchlen + 1);