Merge branch 'db/vcs-helper'

* db/vcs-helper:
  Makefile: remove remnant of separate http/https/ftp helpers
  Use a clearer style to issue commands to remote helpers
  Make the "traditionally-supported" URLs a special case
  Makefile: install hardlinks for git-remote-<scheme> supported by libcurl if possible
  Makefile: do not link three copies of git-remote-* programs
  Makefile: git-http-fetch does not need expat
  http-fetch: Fix Makefile dependancies
  Add transport native helper executables to .gitignore
  git-http-fetch: not a builtin
  Use an external program to implement fetching with curl
  Add support for external programs for handling native fetches

diff --cc .gitignore
index 10808e3,46c26cd..47672b0
--- 1/.gitignore
--- 2/.gitignore
+++ b/.gitignore
@@@ -104,8 -104,8 +104,9 @@@ git-receive-pac
  git-reflog
  git-relink
  git-remote
+ git-remote-curl
  git-repack
 +git-replace
  git-repo-config
  git-request-pull
  git-rerere

diff --cc Makefile
Simple merge

diff --cc git.c
Simple merge

diff --cc transport.c
index d6c35d9,b654d71..4cb8077
--- 1/transport.c
--- 2/transport.c
+++ b/transport.c
@@@ -415,99 -374,22 +373,9 @@@ static int curl_transport_push(struct t
        while (refspec_nr--)
                argv[argc++] = *refspec++;
        argv[argc] = NULL;
 -      err = run_command_v_opt(argv, RUN_GIT_CMD);
 -      switch (err) {
 -      case -ERR_RUN_COMMAND_FORK:
 -              error("unable to fork for %s", argv[0]);
 -      case -ERR_RUN_COMMAND_EXEC:
 -              error("unable to exec %s", argv[0]);
 -              break;
 -      case -ERR_RUN_COMMAND_WAITPID:
 -      case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
 -      case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
 -      case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
 -              error("%s died with strange error", argv[0]);
 -      }
 -      return !!err;
 +      return !!run_command_v_opt(argv, RUN_GIT_CMD);
  }
  
- static struct ref *get_refs_via_curl(struct transport *transport, int for_push)
- {
-       struct strbuf buffer = STRBUF_INIT;
-       char *data, *start, *mid;
-       char *ref_name;
-       char *refs_url;
-       int i = 0;
-       int http_ret;
- 
-       struct ref *refs = NULL;
-       struct ref *ref = NULL;
-       struct ref *last_ref = NULL;
- 
-       struct walker *walker;
- 
-       if (for_push)
-               return NULL;
- 
-       if (!transport->data)
-               transport->data = get_http_walker(transport->url,
-                                               transport->remote);
- 
-       walker = transport->data;
- 
-       refs_url = xmalloc(strlen(transport->url) + 11);
-       sprintf(refs_url, "%s/info/refs", transport->url);
- 
-       http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
-       switch (http_ret) {
-       case HTTP_OK:
-               break;
-       case HTTP_MISSING_TARGET:
-               die("%s not found: did you run git update-server-info on the"
-                   " server?", refs_url);
-       default:
-               http_error(refs_url, http_ret);
-               die("HTTP request failed");
-       }
- 
-       data = buffer.buf;
-       start = NULL;
-       mid = data;
-       while (i < buffer.len) {
-               if (!start)
-                       start = &data[i];
-               if (data[i] == '\t')
-                       mid = &data[i];
-               if (data[i] == '\n') {
-                       data[i] = 0;
-                       ref_name = mid + 1;
-                       ref = xmalloc(sizeof(struct ref) +
-                                     strlen(ref_name) + 1);
-                       memset(ref, 0, sizeof(struct ref));
-                       strcpy(ref->name, ref_name);
-                       get_sha1_hex(start, ref->old_sha1);
-                       if (!refs)
-                               refs = ref;
-                       if (last_ref)
-                               last_ref->next = ref;
-                       last_ref = ref;
-                       start = NULL;
-               }
-               i++;
-       }
- 
-       strbuf_release(&buffer);
- 
-       ref = alloc_ref("HEAD");
-       if (!walker->fetch_ref(walker, ref) &&
-           !resolve_remote_symref(ref, refs)) {
-               ref->next = refs;
-               refs = ref;
-       } else {
-               free(ref);
-       }
- 
-       strbuf_release(&buffer);
-       free(refs_url);
-       return refs;
- }
- 
- static int fetch_objs_via_curl(struct transport *transport,
-                                int nr_objs, const struct ref **to_fetch)
- {
-       if (!transport->data)
-               transport->data = get_http_walker(transport->url,
-                                               transport->remote);
-       return fetch_objs_via_walker(transport, nr_objs, to_fetch);
- }
- 
  #endif
  
  struct bundle_transport_data {

diff --cc transport.h
Simple merge