Make the "traditionally-supported" URLs a special case

Instead of trying to make http://, https://, and ftp:// URLs
indicative of some sort of pattern of transport helper usage, make
them a special case which runs the "curl" helper, and leave the
mechanism by which arbitrary helpers will be chosen entirely to future
work.
Signed-off-by: NDaniel Barkalow <barkalow@iabervon.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Makefile

@@ -981,8 +981,7 @@ else
 	else
 		CURL_LIBCURL = -lcurl
 	endif
-	CURL_SYNONYMS = git-remote-https$X git-remote-ftp$X
-	PROGRAMS += git-remote-http$X $(CURL_SYNONYMS) git-http-fetch$X
+	PROGRAMS += git-remote-curl$X git-http-fetch$X
 	curl_check := $(shell (echo 070908; curl-config --vernum) | sort -r | sed -ne 2p)
 	ifeq "$(curl_check)" "070908"
 		ifndef NO_EXPAT
@@ -1497,16 +1496,10 @@ git-http-push$X: revision.o http.o http-push.o $(GITLIBS)
 	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
 		$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
 
-git-remote-http$X: remote-curl.o http.o http-walker.o $(GITLIBS)
+git-remote-curl$X: remote-curl.o http.o http-walker.o $(GITLIBS)
 	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
 		$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
 
-$(CURL_SYNONYMS): git-remote-http$X
-	$(QUIET_LNCP)$(RM) $@ && \
-	ln $< $@ 2>/dev/null || \
-	ln -s $< $@ 2>/dev/null || \
-	cp $< $@
-
 $(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
 $(patsubst git-%$X,%.o,$(PROGRAMS)) git.o: $(LIB_H) $(wildcard */*.h)
 builtin-revert.o wt-status.o: wt-status.h
@@ -1688,12 +1681,6 @@ endif
 		ln -s "git$X" "$$execdir/$$p" 2>/dev/null || \
 		cp "$$execdir/git$X" "$$execdir/$$p" || exit; \
 	  done; } && \
-	{ for p in $(CURL_SYNONYMS); do \
-		$(RM) "$$execdir/$$p" && \
-		ln "$$execdir/git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \
-		ln -s "git-remote-http$X" "$$execdir/$$p" 2>/dev/null || \
-		cp "$$execdir/git-remote-http$X" "$$execdir/$$p" || exit; \
-	  done; } && \
 	./check_bindir "z$$bindir" "z$$execdir" "$$bindir/git-add$X"
 
 install-doc:

transport-helper.c

@@ -152,13 +152,10 @@ static struct ref *get_refs_list(struct transport *transport, int for_push)
 	return ret;
 }
 
-int transport_helper_init(struct transport *transport)
+int transport_helper_init(struct transport *transport, const char *name)
 {
 	struct helper_data *data = xcalloc(sizeof(*data), 1);
-	char *eom = strchr(transport->url, ':');
-	if (!eom)
-		return -1;
-	data->name = xstrndup(transport->url, eom - transport->url);
+	data->name = name;
 
 	transport->data = data;
 	transport->get_refs_list = get_refs_list;

transport.c

@@ -818,7 +818,7 @@ struct transport *transport_get(struct remote *remote, const char *url)
 	} else if (!prefixcmp(url, "http://")
 	        || !prefixcmp(url, "https://")
 	        || !prefixcmp(url, "ftp://")) {
-		transport_helper_init(ret);
+		transport_helper_init(ret, "curl");
 #ifdef NO_CURL
 		error("git was compiled without libcurl support.");
 #else

transport.h

@@ -78,6 +78,6 @@ int transport_disconnect(struct transport *transport);
 char *transport_anonymize_url(const char *url);
 
 /* Transport methods defined outside transport.c */
-int transport_helper_init(struct transport *transport);
+int transport_helper_init(struct transport *transport, const char *name);
 
 #endif