Merge branch 'ab/http-drop-old-curl'

Support for ancient versions of cURL library (pre 7.19.4) has been
dropped.

* ab/http-drop-old-curl:
  http: rename CURLOPT_FILE to CURLOPT_WRITEDATA
  http: drop support for curl < 7.19.3 and < 7.17.0 (again)
  http: drop support for curl < 7.19.4
  http: drop support for curl < 7.16.0
  http: drop support for curl < 7.11.1

http-push.c

@@ -203,10 +203,8 @@ static void curl_setup_http(CURL *curl, const char *url,
 	curl_easy_setopt(curl, CURLOPT_INFILE, buffer);
 	curl_easy_setopt(curl, CURLOPT_INFILESIZE, buffer->buf.len);
 	curl_easy_setopt(curl, CURLOPT_READFUNCTION, fread_buffer);
-#ifndef NO_CURL_IOCTL
 	curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer);
 	curl_easy_setopt(curl, CURLOPT_IOCTLDATA, buffer);
-#endif
 	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_fn);
 	curl_easy_setopt(curl, CURLOPT_NOBODY, 0);
 	curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, custom_req);
@@ -249,8 +247,6 @@ static void process_response(void *callback_data)
 	finish_request(request);
 }
 
-#ifdef USE_CURL_MULTI
-
 static void start_fetch_loose(struct transfer_request *request)
 {
 	struct active_request_slot *slot;
@@ -299,7 +295,6 @@ static void start_mkcol(struct transfer_request *request)
 		FREE_AND_NULL(request->url);
 	}
 }
-#endif
 
 static void start_fetch_packed(struct transfer_request *request)
 {
@@ -605,7 +600,6 @@ static void finish_request(struct transfer_request *request)
 	}
 }
 
-#ifdef USE_CURL_MULTI
 static int is_running_queue;
 static int fill_active_slot(void *unused)
 {
@@ -629,7 +623,6 @@ static int fill_active_slot(void *unused)
 	}
 	return 0;
 }
-#endif
 
 static void get_remote_object_list(unsigned char parent);
 
@@ -658,10 +651,8 @@ static void add_fetch_request(struct object *obj)
 	request->next = request_queue_head;
 	request_queue_head = request;
 
-#ifdef USE_CURL_MULTI
 	fill_active_slots();
 	step_active_slots();
-#endif
 }
 
 static int add_send_request(struct object *obj, struct remote_lock *lock)
@@ -696,10 +687,8 @@ static int add_send_request(struct object *obj, struct remote_lock *lock)
 	request->next = request_queue_head;
 	request_queue_head = request;
 
-#ifdef USE_CURL_MULTI
 	fill_active_slots();
 	step_active_slots();
-#endif
 
 	return 1;
 }
@@ -894,7 +883,7 @@ static struct remote_lock *lock_remote(const char *path, long timeout)
 	slot->results = &results;
 	curl_setup_http(slot->curl, url, DAV_LOCK, &out_buffer, fwrite_buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer);
 
 	CALLOC_ARRAY(lock, 1);
 	lock->timeout = -1;
@@ -1153,7 +1142,7 @@ static void remote_ls(const char *path, int flags,
 	curl_setup_http(slot->curl, url, DAV_PROPFIND,
 			&out_buffer, fwrite_buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer);
 
 	if (start_active_slot(slot)) {
 		run_active_slot(slot);
@@ -1227,7 +1216,7 @@ static int locking_available(void)
 	curl_setup_http(slot->curl, repo->url, DAV_PROPFIND,
 			&out_buffer, fwrite_buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer);
 
 	if (start_active_slot(slot)) {
 		run_active_slot(slot);
@@ -1682,21 +1671,15 @@ static int delete_remote_branch(const char *pattern, int force)
 
 static void run_request_queue(void)
 {
-#ifdef USE_CURL_MULTI
 	is_running_queue = 1;
 	fill_active_slots();
 	add_fill_function(NULL, fill_active_slot);
-#endif
 	do {
 		finish_all_active_slots();
-#ifdef USE_CURL_MULTI
 		fill_active_slots();
-#endif
 	} while (request_queue_head && !aborted);
 
-#ifdef USE_CURL_MULTI
 	is_running_queue = 0;
-#endif
 }
 
 int cmd_main(int argc, const char **argv)
@@ -1770,10 +1753,6 @@ int cmd_main(int argc, const char **argv)
 		break;
 	}
 
-#ifndef USE_CURL_MULTI
-	die("git-push is not available for http/https repository when not compiled with USE_CURL_MULTI");
-#endif
-
 	if (!repo->url)
 		usage(http_push_usage);
 
@@ -1786,9 +1765,7 @@ int cmd_main(int argc, const char **argv)
 
 	http_init(NULL, repo->url, 1);
 
-#ifdef USE_CURL_MULTI
 	is_running_queue = 0;
-#endif
 
 	/* Verify DAV compliance/lock support */
 	if (!locking_available()) {

http-walker.c

@@ -127,7 +127,6 @@ static void release_object_request(struct object_request *obj_req)
 	free(obj_req);
 }
 
-#ifdef USE_CURL_MULTI
 static int fill_active_slot(struct walker *walker)
 {
 	struct object_request *obj_req;
@@ -146,7 +145,6 @@ static int fill_active_slot(struct walker *walker)
 	}
 	return 0;
 }
-#endif
 
 static void prefetch(struct walker *walker, unsigned char *sha1)
 {
@@ -163,10 +161,8 @@ static void prefetch(struct walker *walker, unsigned char *sha1)
 	http_is_verbose = walker->get_verbosely;
 	list_add_tail(&newreq->node, &object_queue_head);
 
-#ifdef USE_CURL_MULTI
 	fill_active_slots();
 	step_active_slots();
-#endif
 }
 
 static int is_alternate_allowed(const char *url)
@@ -357,11 +353,9 @@ static void fetch_alternates(struct walker *walker, const char *base)
 	 * wait for them to arrive and return to processing this request's
 	 * curl message
 	 */
-#ifdef USE_CURL_MULTI
 	while (cdata->got_alternates == 0) {
 		step_active_slots();
 	}
-#endif
 
 	/* Nothing to do if they've already been fetched */
 	if (cdata->got_alternates == 1)
@@ -384,7 +378,7 @@ static void fetch_alternates(struct walker *walker, const char *base)
 	alt_req.walker = walker;
 	slot->callback_data = &alt_req;
 
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
 	curl_easy_setopt(slot->curl, CURLOPT_URL, url.buf);
 
@@ -505,12 +499,8 @@ static int fetch_object(struct walker *walker, unsigned char *hash)
 		return 0;
 	}
 
-#ifdef USE_CURL_MULTI
 	while (obj_req->state == WAITING)
 		step_active_slots();
-#else
-	start_object_request(walker, obj_req);
-#endif
 
 	/*
 	 * obj_req->req might change when fetching alternates in the callback
@@ -623,9 +613,7 @@ struct walker *get_http_walker(const char *url)
 	walker->cleanup = cleanup;
 	walker->data = data;
 
-#ifdef USE_CURL_MULTI
 	add_fill_function(walker, (int (*)(void *)) fill_active_slot);
-#endif
 
 	return walker;
 }

http.c

@@ -19,28 +19,16 @@
 static struct trace_key trace_curl = TRACE_KEY_INIT(CURL);
 static int trace_curl_data = 1;
 static int trace_curl_redact = 1;
-#if LIBCURL_VERSION_NUM >= 0x070a08
 long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER;
-#else
-long int git_curl_ipresolve;
-#endif
 int active_requests;
 int http_is_verbose;
 ssize_t http_post_buffer = 16 * LARGE_PACKET_MAX;
 
-#if LIBCURL_VERSION_NUM >= 0x070a06
-#define LIBCURL_CAN_HANDLE_AUTH_ANY
-#endif
-
 static int min_curl_sessions = 1;
 static int curl_session_count;
-#ifdef USE_CURL_MULTI
 static int max_requests = -1;
 static CURLM *curlm;
-#endif
-#ifndef NO_CURL_EASY_DUPHANDLE
 static CURL *curl_default;
-#endif
 
 #define PREV_BUF_SIZE 4096
 
@@ -68,15 +56,9 @@ static struct {
 	{ "tlsv1.3", CURL_SSLVERSION_TLSv1_3 },
 #endif
 };
-#if LIBCURL_VERSION_NUM >= 0x070903
 static const char *ssl_key;
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
 static const char *ssl_capath;
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071304
 static const char *curl_no_proxy;
-#endif
 #if LIBCURL_VERSION_NUM >= 0x072c00
 static const char *ssl_pinnedkey;
 #endif
@@ -101,9 +83,7 @@ static struct {
 	{ "digest", CURLAUTH_DIGEST },
 	{ "negotiate", CURLAUTH_GSSNEGOTIATE },
 	{ "ntlm", CURLAUTH_NTLM },
-#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
 	{ "anyauth", CURLAUTH_ANY },
-#endif
 	/*
 	 * CURLAUTH_DIGEST_IE has no corresponding command-line option in
 	 * curl(1) and is not included in CURLAUTH_ANY, so we leave it out
@@ -133,27 +113,15 @@ static int curl_empty_auth = -1;
 
 enum http_follow_config http_follow_config = HTTP_FOLLOW_INITIAL;
 
-#if LIBCURL_VERSION_NUM >= 0x071700
-/* Use CURLOPT_KEYPASSWD as is */
-#elif LIBCURL_VERSION_NUM >= 0x070903
-#define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
-#else
-#define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
-#endif
-
 static struct credential cert_auth = CREDENTIAL_INIT;
 static int ssl_cert_password_required;
-#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
 static unsigned long http_auth_methods = CURLAUTH_ANY;
 static int http_auth_methods_restricted;
 /* Modes for which empty_auth cannot actually help us. */
 static unsigned long empty_auth_useless =
 	CURLAUTH_BASIC
-#ifdef CURLAUTH_DIGEST_IE
 	| CURLAUTH_DIGEST_IE
-#endif
 	| CURLAUTH_DIGEST;
-#endif
 
 static struct curl_slist *pragma_header;
 static struct curl_slist *no_pragma_header;
@@ -186,7 +154,6 @@ size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
 	return size / eltsize;
 }
 
-#ifndef NO_CURL_IOCTL
 curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
 {
 	struct buffer *buffer = clientp;
@@ -203,7 +170,6 @@ curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp)
 		return CURLIOE_UNKNOWNCMD;
 	}
 }
-#endif
 
 size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *buffer_)
 {
@@ -237,12 +203,8 @@ static void finish_active_slot(struct active_request_slot *slot)
 	if (slot->results != NULL) {
 		slot->results->curl_result = slot->curl_result;
 		slot->results->http_code = slot->http_code;
-#if LIBCURL_VERSION_NUM >= 0x070a08
 		curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
 				  &slot->results->auth_avail);
-#else
-		slot->results->auth_avail = 0;
-#endif
 
 		curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CONNECTCODE,
 			&slot->results->http_connectcode);
@@ -255,12 +217,9 @@ static void finish_active_slot(struct active_request_slot *slot)
 
 static void xmulti_remove_handle(struct active_request_slot *slot)
 {
-#ifdef USE_CURL_MULTI
 	curl_multi_remove_handle(curlm, slot->curl);
-#endif
 }
 
-#ifdef USE_CURL_MULTI
 static void process_curl_messages(void)
 {
 	int num_messages;
@@ -288,7 +247,6 @@ static void process_curl_messages(void)
 		curl_message = curl_multi_info_read(curlm, &num_messages);
 	}
 }
-#endif
 
 static int http_options(const char *var, const char *value, void *cb)
 {
@@ -305,14 +263,10 @@ static int http_options(const char *var, const char *value, void *cb)
 		return git_config_string(&ssl_version, var, value);
 	if (!strcmp("http.sslcert", var))
 		return git_config_pathname(&ssl_cert, var, value);
-#if LIBCURL_VERSION_NUM >= 0x070903
 	if (!strcmp("http.sslkey", var))
 		return git_config_pathname(&ssl_key, var, value);
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
 	if (!strcmp("http.sslcapath", var))
 		return git_config_pathname(&ssl_capath, var, value);
-#endif
 	if (!strcmp("http.sslcainfo", var))
 		return git_config_pathname(&ssl_cainfo, var, value);
 	if (!strcmp("http.sslcertpasswordprotected", var)) {
@@ -341,18 +295,14 @@ static int http_options(const char *var, const char *value, void *cb)
 
 	if (!strcmp("http.minsessions", var)) {
 		min_curl_sessions = git_config_int(var, value);
-#ifndef USE_CURL_MULTI
 		if (min_curl_sessions > 1)
 			min_curl_sessions = 1;
-#endif
 		return 0;
 	}
-#ifdef USE_CURL_MULTI
 	if (!strcmp("http.maxrequests", var)) {
 		max_requests = git_config_int(var, value);
 		return 0;
 	}
-#endif
 	if (!strcmp("http.lowspeedlimit", var)) {
 		curl_low_speed_limit = (long)git_config_int(var, value);
 		return 0;
@@ -461,12 +411,6 @@ static int curl_empty_auth_enabled(void)
 	if (curl_empty_auth >= 0)
 		return curl_empty_auth;
 
-#ifndef LIBCURL_CAN_HANDLE_AUTH_ANY
-	/*
-	 * Our libcurl is too old to do AUTH_ANY in the first place;
-	 * just default to turning the feature off.
-	 */
-#else
 	/*
 	 * In the automatic case, kick in the empty-auth
 	 * hack as long as we would potentially try some
@@ -479,7 +423,6 @@ static int curl_empty_auth_enabled(void)
 	if (http_auth_methods_restricted &&
 	    (http_auth_methods & ~empty_auth_useless))
 		return 1;
-#endif
 	return 0;
 }
 
@@ -493,24 +436,8 @@ static void init_curl_http_auth(CURL *result)
 
 	credential_fill(&http_auth);
 
-#if LIBCURL_VERSION_NUM >= 0x071301
 	curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
 	curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
-#else
-	{
-		static struct strbuf up = STRBUF_INIT;
-		/*
-		 * Note that we assume we only ever have a single set of
-		 * credentials in a given program run, so we do not have
-		 * to worry about updating this buffer, only setting its
-		 * initial value.
-		 */
-		if (!up.len)
-			strbuf_addf(&up, "%s:%s",
-				http_auth.username, http_auth.password);
-		curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
-	}
-#endif
 }
 
 /* *var must be free-able */
@@ -524,22 +451,10 @@ static void var_override(const char **var, char *value)
 
 static void set_proxyauth_name_password(CURL *result)
 {
-#if LIBCURL_VERSION_NUM >= 0x071301
 		curl_easy_setopt(result, CURLOPT_PROXYUSERNAME,
 			proxy_auth.username);
 		curl_easy_setopt(result, CURLOPT_PROXYPASSWORD,
 			proxy_auth.password);
-#else
-		struct strbuf s = STRBUF_INIT;
-
-		strbuf_addstr_urlencode(&s, proxy_auth.username,
-					is_rfc3986_unreserved);
-		strbuf_addch(&s, ':');
-		strbuf_addstr_urlencode(&s, proxy_auth.password,
-					is_rfc3986_unreserved);
-		curl_proxyuserpwd = strbuf_detach(&s, NULL);
-		curl_easy_setopt(result, CURLOPT_PROXYUSERPWD, curl_proxyuserpwd);
-#endif
 }
 
 static void init_curl_proxy_auth(CURL *result)
@@ -552,7 +467,6 @@ static void init_curl_proxy_auth(CURL *result)
 
 	var_override(&http_proxy_authmethod, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
 
-#if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
 	if (http_proxy_authmethod) {
 		int i;
 		for (i = 0; i < ARRAY_SIZE(proxy_authmethods); i++) {
@@ -570,7 +484,6 @@ static void init_curl_proxy_auth(CURL *result)
 	}
 	else
 		curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
-#endif
 }
 
 static int has_cert_password(void)
@@ -609,7 +522,7 @@ static void set_curl_keepalive(CURL *c)
 	curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
 }
 
-#elif LIBCURL_VERSION_NUM >= 0x071000
+#else
 static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
 {
 	int ka = 1;
@@ -630,12 +543,6 @@ static void set_curl_keepalive(CURL *c)
 {
 	curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
 }
-
-#else
-static void set_curl_keepalive(CURL *c)
-{
-	/* not supported on older curl versions */
-}
 #endif
 
 static void redact_sensitive_header(struct strbuf *header)
@@ -809,7 +716,6 @@ void setup_curl_trace(CURL *handle)
 	curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL);
 }
 
-#ifdef CURLPROTO_HTTP
 static long get_curl_allowed_protocols(int from_user)
 {
 	long allowed_protocols = 0;
@@ -825,7 +731,6 @@ static long get_curl_allowed_protocols(int from_user)
 
 	return allowed_protocols;
 }
-#endif
 
 #if LIBCURL_VERSION_NUM >=0x072f00
 static int get_curl_http_version_opt(const char *version_string, long *opt)
@@ -879,12 +784,8 @@ static CURL *get_curl_handle(void)
     }
 #endif
 
-#if LIBCURL_VERSION_NUM >= 0x070907
 	curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
-#endif
-#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
 	curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
-#endif
 
 #ifdef CURLGSSAPI_DELEGATION_FLAG
 	if (curl_deleg) {
@@ -940,14 +841,10 @@ static CURL *get_curl_handle(void)
 		curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
 	if (has_cert_password())
 		curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
-#if LIBCURL_VERSION_NUM >= 0x070903
 	if (ssl_key != NULL)
 		curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
 	if (ssl_capath != NULL)
 		curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
-#endif
 #if LIBCURL_VERSION_NUM >= 0x072c00
 	if (ssl_pinnedkey != NULL)
 		curl_easy_setopt(result, CURLOPT_PINNEDPUBLICKEY, ssl_pinnedkey);
@@ -975,19 +872,11 @@ static CURL *get_curl_handle(void)
 	}
 
 	curl_easy_setopt(result, CURLOPT_MAXREDIRS, 20);
-#if LIBCURL_VERSION_NUM >= 0x071301
 	curl_easy_setopt(result, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
-#elif LIBCURL_VERSION_NUM >= 0x071101
-	curl_easy_setopt(result, CURLOPT_POST301, 1);
-#endif
-#ifdef CURLPROTO_HTTP
 	curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS,
 			 get_curl_allowed_protocols(0));
 	curl_easy_setopt(result, CURLOPT_PROTOCOLS,
 			 get_curl_allowed_protocols(-1));
-#else
-	warning(_("Protocol restrictions not supported with cURL < 7.19.4"));
-#endif
 	if (getenv("GIT_CURL_VERBOSE"))
 		http_trace_curl_no_data();
 	setup_curl_trace(result);
@@ -1002,10 +891,8 @@ static CURL *get_curl_handle(void)
 	if (curl_ftp_no_epsv)
 		curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
 
-#ifdef CURLOPT_USE_SSL
 	if (curl_ssl_try)
 		curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
-#endif
 
 	/*
 	 * CURL also examines these variables as a fallback; but we need to query
@@ -1081,11 +968,9 @@ static CURL *get_curl_handle(void)
 			die("Invalid proxy URL '%s'", curl_http_proxy);
 
 		curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host);
-#if LIBCURL_VERSION_NUM >= 0x071304
 		var_override(&curl_no_proxy, getenv("NO_PROXY"));
 		var_override(&curl_no_proxy, getenv("no_proxy"));
 		curl_easy_setopt(result, CURLOPT_NOPROXY, curl_no_proxy);
-#endif
 	}
 	init_curl_proxy_auth(result);
 
@@ -1164,7 +1049,6 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
 	no_pragma_header = curl_slist_append(http_copy_default_headers(),
 		"Pragma:");
 
-#ifdef USE_CURL_MULTI
 	{
 		char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
 		if (http_max_requests != NULL)
@@ -1174,18 +1058,13 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
 	curlm = curl_multi_init();
 	if (!curlm)
 		die("curl_multi_init failed");
-#endif
 
 	if (getenv("GIT_SSL_NO_VERIFY"))
 		curl_ssl_verify = 0;
 
 	set_from_env(&ssl_cert, "GIT_SSL_CERT");
-#if LIBCURL_VERSION_NUM >= 0x070903
 	set_from_env(&ssl_key, "GIT_SSL_KEY");
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
 	set_from_env(&ssl_capath, "GIT_SSL_CAPATH");
-#endif
 	set_from_env(&ssl_cainfo, "GIT_SSL_CAINFO");
 
 	set_from_env(&user_agent, "GIT_HTTP_USER_AGENT");
@@ -1201,10 +1080,8 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
 		curl_ssl_verify = 1;
 
 	curl_session_count = 0;
-#ifdef USE_CURL_MULTI
 	if (max_requests < 1)
 		max_requests = DEFAULT_MAX_REQUESTS;
-#endif
 
 	set_from_env(&http_proxy_ssl_cert, "GIT_PROXY_SSL_CERT");
 	set_from_env(&http_proxy_ssl_key, "GIT_PROXY_SSL_KEY");
@@ -1224,9 +1101,7 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
 			ssl_cert_password_required = 1;
 	}
 
-#ifndef NO_CURL_EASY_DUPHANDLE
 	curl_default = get_curl_handle();
-#endif
 }
 
 void http_cleanup(void)
@@ -1244,13 +1119,9 @@ void http_cleanup(void)
 	}
 	active_queue_head = NULL;
 
-#ifndef NO_CURL_EASY_DUPHANDLE
 	curl_easy_cleanup(curl_default);
-#endif
 
-#ifdef USE_CURL_MULTI
 	curl_multi_cleanup(curlm);
-#endif
 	curl_global_cleanup();
 
 	string_list_clear(&extra_http_headers, 0);
@@ -1297,7 +1168,6 @@ struct active_request_slot *get_active_slot(void)
 	struct active_request_slot *slot = active_queue_head;
 	struct active_request_slot *newslot;
 
-#ifdef USE_CURL_MULTI
 	int num_transfers;
 
 	/* Wait for a slot to open up if the queue is full */
@@ -1306,7 +1176,6 @@ struct active_request_slot *get_active_slot(void)
 		if (num_transfers < active_requests)
 			process_curl_messages();
 	}
-#endif
 
 	while (slot != NULL && slot->in_use)
 		slot = slot->next;
@@ -1329,11 +1198,7 @@ struct active_request_slot *get_active_slot(void)
 	}
 
 	if (slot->curl == NULL) {
-#ifdef NO_CURL_EASY_DUPHANDLE
-		slot->curl = get_curl_handle();
-#else
 		slot->curl = curl_easy_duphandle(curl_default);
-#endif
 		curl_session_count++;
 	}
 
@@ -1367,12 +1232,8 @@ struct active_request_slot *get_active_slot(void)
 	else
 		curl_easy_setopt(slot->curl, CURLOPT_FOLLOWLOCATION, 0);
 
-#if LIBCURL_VERSION_NUM >= 0x070a08
 	curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve);
-#endif
-#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods);
-#endif
 	if (http_auth.password || curl_empty_auth_enabled())
 		init_curl_http_auth(slot->curl);
 
@@ -1381,7 +1242,6 @@ struct active_request_slot *get_active_slot(void)
 
 int start_active_slot(struct active_request_slot *slot)
 {
-#ifdef USE_CURL_MULTI
 	CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
 	int num_transfers;
 
@@ -1399,11 +1259,9 @@ int start_active_slot(struct active_request_slot *slot)
 	 * something.
 	 */
 	curl_multi_perform(curlm, &num_transfers);
-#endif
 	return 1;
 }
 
-#ifdef USE_CURL_MULTI
 struct fill_chain {
 	void *data;
 	int (*fill)(void *);
@@ -1462,11 +1320,9 @@ void step_active_slots(void)
 		fill_active_slots();
 	}
 }
-#endif
 
 void run_active_slot(struct active_request_slot *slot)
 {
-#ifdef USE_CURL_MULTI
 	fd_set readfds;
 	fd_set writefds;
 	fd_set excfds;
@@ -1479,7 +1335,6 @@ void run_active_slot(struct active_request_slot *slot)
 		step_active_slots();
 
 		if (slot->in_use) {
-#if LIBCURL_VERSION_NUM >= 0x070f04
 			long curl_timeout;
 			curl_multi_timeout(curlm, &curl_timeout);
 			if (curl_timeout == 0) {
@@ -1491,10 +1346,6 @@ void run_active_slot(struct active_request_slot *slot)
 				select_timeout.tv_sec  =  curl_timeout / 1000;
 				select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
 			}
-#else
-			select_timeout.tv_sec  = 0;
-			select_timeout.tv_usec = 50000;
-#endif
 
 			max_fd = -1;
 			FD_ZERO(&readfds);
@@ -1517,12 +1368,6 @@ void run_active_slot(struct active_request_slot *slot)
 			select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
 		}
 	}
-#else
-	while (slot->in_use) {
-		slot->curl_result = curl_easy_perform(slot->curl);
-		finish_active_slot(slot);
-	}
-#endif
 }
 
 static void release_active_slot(struct active_request_slot *slot)
@@ -1536,9 +1381,7 @@ static void release_active_slot(struct active_request_slot *slot)
 			curl_session_count--;
 		}
 	}
-#ifdef USE_CURL_MULTI
 	fill_active_slots();
-#endif
 }
 
 void finish_all_active_slots(void)
@@ -1654,24 +1497,20 @@ static int handle_curl_result(struct slot_results *results)
 			credential_reject(&http_auth);
 			return HTTP_NOAUTH;
 		} else {
-#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
 			http_auth_methods &= ~CURLAUTH_GSSNEGOTIATE;
 			if (results->auth_avail) {
 				http_auth_methods &= results->auth_avail;
 				http_auth_methods_restricted = 1;
 			}
-#endif
 			return HTTP_REAUTH;
 		}
 	} else {
 		if (results->http_connectcode == 407)
 			credential_reject(&proxy_auth);
-#if LIBCURL_VERSION_NUM >= 0x070c00
 		if (!curl_errorstr[0])
 			strlcpy(curl_errorstr,
 				curl_easy_strerror(results->curl_result),
 				sizeof(curl_errorstr));
-#endif
 		return HTTP_ERROR;
 	}
 }
@@ -1930,7 +1769,7 @@ static int http_request(const char *url,
 		curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
 	} else {
 		curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
-		curl_easy_setopt(slot->curl, CURLOPT_FILE, result);
+		curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, result);
 
 		if (target == HTTP_REQUEST_FILE) {
 			off_t posn = ftello(result);
@@ -2347,7 +2186,7 @@ struct http_pack_request *new_direct_http_pack_request(
 	}
 
 	preq->slot = get_active_slot();
-	curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
+	curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEDATA, preq->packfile);
 	curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
 	curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
 	curl_easy_setopt(preq->slot->curl, CURLOPT_HTTPHEADER,
@@ -2518,7 +2357,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
 
 	freq->slot = get_active_slot();
 
-	curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
+	curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEDATA, freq);
 	curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0);
 	curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
 	curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);

http.h

@@ -10,49 +10,7 @@
 #include "remote.h"
 #include "url.h"
 
-/*
- * We detect based on the cURL version if multi-transfer is
- * usable in this implementation and define this symbol accordingly.
- * This shouldn't be set by the Makefile or by the user (e.g. via CFLAGS).
- */
-#undef USE_CURL_MULTI
-
-#if LIBCURL_VERSION_NUM >= 0x071000
-#define USE_CURL_MULTI
 #define DEFAULT_MAX_REQUESTS 5
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070704
-#define curl_global_cleanup() do { /* nothing */ } while (0)
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070800
-#define curl_global_init(a) do { /* nothing */ } while (0)
-#elif LIBCURL_VERSION_NUM >= 0x070c00
-#define curl_global_init(a) curl_global_init_mem(a, xmalloc, free, \
-						xrealloc, xstrdup, xcalloc)
-#endif
-
-#if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
-#define NO_CURL_EASY_DUPHANDLE
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070a03
-#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070c03
-#define NO_CURL_IOCTL
-#endif
-
-/*
- * CURLOPT_USE_SSL was known as CURLOPT_FTP_SSL up to 7.16.4,
- * and the constants were known as CURLFTPSSL_*
-*/
-#if !defined(CURLOPT_USE_SSL) && defined(CURLOPT_FTP_SSL)
-#define CURLOPT_USE_SSL CURLOPT_FTP_SSL
-#define CURLUSESSL_TRY CURLFTPSSL_TRY
-#endif
 
 struct slot_results {
 	CURLcode curl_result;
@@ -82,9 +40,7 @@ struct buffer {
 size_t fread_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
 size_t fwrite_buffer(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
 size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf);
-#ifndef NO_CURL_IOCTL
 curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp);
-#endif
 
 /* Slot lifecycle functions */
 struct active_request_slot *get_active_slot(void);
@@ -101,11 +57,9 @@ void finish_all_active_slots(void);
 int run_one_slot(struct active_request_slot *slot,
 		 struct slot_results *results);
 
-#ifdef USE_CURL_MULTI
 void fill_active_slots(void);
 void add_fill_function(void *data, int (*fill)(void *));
 void step_active_slots(void);
-#endif
 
 void http_init(struct remote *remote, const char *url,
 	       int proactive_auth);

imap-send.c

@@ -1517,11 +1517,7 @@ static int curl_append_msgs_to_imap(struct imap_server_conf *server,
 	if (cred.username) {
 		if (res == CURLE_OK)
 			credential_approve(&cred);
-#if LIBCURL_VERSION_NUM >= 0x070d01
 		else if (res == CURLE_LOGIN_DENIED)
-#else
-		else
-#endif
 			credential_reject(&cred);
 	}
 

remote-curl.c

@@ -185,8 +185,6 @@ static int set_option(const char *name, const char *value)
 						 strbuf_detach(&unquoted, NULL));
 		}
 		return 0;
-
-#if LIBCURL_VERSION_NUM >= 0x070a08
 	} else if (!strcmp(name, "family")) {
 		if (!strcmp(value, "ipv4"))
 			git_curl_ipresolve = CURL_IPRESOLVE_V4;
@@ -197,7 +195,6 @@ static int set_option(const char *name, const char *value)
 		else
 			return -1;
 		return 0;
-#endif /* LIBCURL_VERSION_NUM >= 0x070a08 */
 	} else if (!strcmp(name, "from-promisor")) {
 		options.from_promisor = 1;
 		return 0;
@@ -709,7 +706,6 @@ static size_t rpc_out(void *ptr, size_t eltsize,
 	return avail;
 }
 
-#ifndef NO_CURL_IOCTL
 static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
 {
 	struct rpc_state *rpc = clientp;
@@ -730,7 +726,6 @@ static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
 		return CURLIOE_UNKNOWNCMD;
 	}
 }
-#endif
 
 struct check_pktline_state {
 	char len_buf[4];
@@ -858,7 +853,7 @@ static int probe_rpc(struct rpc_state *rpc, struct slot_results *results)
 	curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4);
 	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
 	curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &buf);
 
 	err = run_slot(slot, results);
 
@@ -949,10 +944,8 @@ retry:
 		rpc->initial_buffer = 1;
 		curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
 		curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
-#ifndef NO_CURL_IOCTL
 		curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
 		curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
-#endif
 		if (options.verbosity > 1) {
 			fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
 			fflush(stderr);
@@ -1023,7 +1016,7 @@ retry:
 	rpc_in_data.slot = slot;
 	rpc_in_data.check_pktline = stateless_connect;
 	memset(&rpc_in_data.pktline_state, 0, sizeof(rpc_in_data.pktline_state));
-	curl_easy_setopt(slot->curl, CURLOPT_FILE, &rpc_in_data);
+	curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &rpc_in_data);
 	curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);