submodule: add absorb-git-dir function

diff --git a/http.c b/http.c
index edce47ca75fbff3b0c8a6f15a881b7471f55fa83..4c4a812fcc39509e32fbcae3db21871b97a1a5eb 100644 (file)
--- a/http.c
+++ b/http.c
@@ -90,6 +90,18 @@ static struct {
         * here, too
         */
 };
+#if LIBCURL_VERSION_NUM >= 0x071600
+static const char *curl_deleg;
+static struct {
+       const char *name;
+       long curl_deleg_param;
+} curl_deleg_levels[] = {
+       { "none", CURLGSSAPI_DELEGATION_NONE },
+       { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG },
+       { "always", CURLGSSAPI_DELEGATION_FLAG },
+};
+#endif
+
 static struct credential proxy_auth = CREDENTIAL_INIT;
 static const char *curl_proxyuserpwd;
 static const char *curl_cookie_file;
@@ -201,6 +213,13 @@ static void finish_active_slot(struct active_request_slot *slot)
                slot->callback_func(slot->callback_data);
 }
 
+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)
 {
@@ -216,7 +235,7 @@ static void process_curl_messages(void)
                               slot->curl != curl_message->easy_handle)
                                slot = slot->next;
                        if (slot != NULL) {
-                               curl_multi_remove_handle(curlm, slot->curl);
+                               xmulti_remove_handle(slot);
                                slot->curl_result = curl_result;
                                finish_active_slot(slot);
                        } else {
@@ -316,6 +335,15 @@ static int http_options(const char *var, const char *value, void *cb)
                return 0;
        }
 
+       if (!strcmp("http.delegation", var)) {
+#if LIBCURL_VERSION_NUM >= 0x071600
+               return git_config_string(&curl_deleg, var, value);
+#else
+               warning(_("Delegation control is not supported with cURL < 7.22.0"));
+               return 0;
+#endif
+       }
+
        if (!strcmp("http.pinnedpubkey", var)) {
 #if LIBCURL_VERSION_NUM >= 0x072c00
                return git_config_pathname(&ssl_pinnedkey, var, value);
@@ -344,7 +372,7 @@ static int http_options(const char *var, const char *value, void *cb)
 
 static void init_curl_http_auth(CURL *result)
 {
-       if (!http_auth.username) {
+       if (!http_auth.username || !*http_auth.username) {
                if (curl_empty_auth)
                        curl_easy_setopt(result, CURLOPT_USERPWD, ":");
                return;
@@ -622,6 +650,22 @@ static CURL *get_curl_handle(void)
        curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 #endif
 
+#if LIBCURL_VERSION_NUM >= 0x071600
+       if (curl_deleg) {
+               int i;
+               for (i = 0; i < ARRAY_SIZE(curl_deleg_levels); i++) {
+                       if (!strcmp(curl_deleg, curl_deleg_levels[i].name)) {
+                               curl_easy_setopt(result, CURLOPT_GSSAPI_DELEGATION,
+                                               curl_deleg_levels[i].curl_deleg_param);
+                               break;
+                       }
+               }
+               if (i == ARRAY_SIZE(curl_deleg_levels))
+                       warning("Unknown delegation method '%s': using default",
+                               curl_deleg);
+       }
+#endif
+
        if (http_proactive_auth)
                init_curl_http_auth(result);
 
@@ -881,9 +925,7 @@ void http_cleanup(void)
        while (slot != NULL) {
                struct active_request_slot *next = slot->next;
                if (slot->curl != NULL) {
-#ifdef USE_CURL_MULTI
-                       curl_multi_remove_handle(curlm, slot->curl);
-#endif
+                       xmulti_remove_handle(slot);
                        curl_easy_cleanup(slot->curl);
                }
                free(slot);
@@ -1022,6 +1064,8 @@ int start_active_slot(struct active_request_slot *slot)
 
        if (curlm_result != CURLM_OK &&
            curlm_result != CURLM_CALL_MULTI_PERFORM) {
+               warning("curl_multi_add_handle failed: %s",
+                       curl_multi_strerror(curlm_result));
                active_requests--;
                slot->in_use = 0;
                return 0;
@@ -1161,13 +1205,13 @@ void run_active_slot(struct active_request_slot *slot)
 static void release_active_slot(struct active_request_slot *slot)
 {
        closedown_active_slot(slot);
-       if (slot->curl && curl_session_count > min_curl_sessions) {
-#ifdef USE_CURL_MULTI
-               curl_multi_remove_handle(curlm, slot->curl);
-#endif
-               curl_easy_cleanup(slot->curl);
-               slot->curl = NULL;
-               curl_session_count--;
+       if (slot->curl) {
+               xmulti_remove_handle(slot);
+               if (curl_session_count > min_curl_sessions) {
+                       curl_easy_cleanup(slot->curl);
+                       slot->curl = NULL;
+                       curl_session_count--;
+               }
        }
 #ifdef USE_CURL_MULTI
        fill_active_slots();