submodule-config: verify submodule names as paths
[gitweb.git] / transport-helper.c
index 12f50d5b94802eed31bf36377f297bbd62f7d83c..36408046eb28d8af3c90614f73ee8112855b4677 100644 (file)
@@ -54,7 +54,7 @@ static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name)
        strbuf_reset(buffer);
        if (debug)
                fprintf(stderr, "Debug: Remote helper: Waiting...\n");
-       if (strbuf_getline(buffer, helper, '\n') == EOF) {
+       if (strbuf_getline(buffer, helper) == EOF) {
                if (debug)
                        fprintf(stderr, "Debug: Remote helper quit.\n");
                return 1;
@@ -124,8 +124,9 @@ static struct child_process *get_helper(struct transport *transport)
        helper->git_cmd = 0;
        helper->silent_exec_failure = 1;
 
-       argv_array_pushf(&helper->env_array, "%s=%s", GIT_DIR_ENVIRONMENT,
-                        get_git_dir());
+       if (have_git_dir())
+               argv_array_pushf(&helper->env_array, "%s=%s",
+                                GIT_DIR_ENVIRONMENT, get_git_dir());
 
        code = start_command(helper);
        if (code < 0 && errno == ENOENT)
@@ -137,7 +138,8 @@ static struct child_process *get_helper(struct transport *transport)
        data->no_disconnect_req = 0;
 
        /*
-        * Open the output as FILE* so strbuf_getline() can be used.
+        * Open the output as FILE* so strbuf_getline_*() family of
+        * functions can be used.
         * Do this with duped fd because fclose() will close the fd,
         * and stuff like taking over will require the fd to remain.
         */
@@ -257,9 +259,51 @@ static const char *boolean_options[] = {
        TRANS_OPT_THIN,
        TRANS_OPT_KEEP,
        TRANS_OPT_FOLLOWTAGS,
-       TRANS_OPT_PUSH_CERT
+       TRANS_OPT_DEEPEN_RELATIVE
        };
 
+static int strbuf_set_helper_option(struct helper_data *data,
+                                   struct strbuf *buf)
+{
+       int ret;
+
+       sendline(data, buf);
+       if (recvline(data, buf))
+               exit(128);
+
+       if (!strcmp(buf->buf, "ok"))
+               ret = 0;
+       else if (starts_with(buf->buf, "error"))
+               ret = -1;
+       else if (!strcmp(buf->buf, "unsupported"))
+               ret = 1;
+       else {
+               warning("%s unexpectedly said: '%s'", data->name, buf->buf);
+               ret = 1;
+       }
+       return ret;
+}
+
+static int string_list_set_helper_option(struct helper_data *data,
+                                        const char *name,
+                                        struct string_list *list)
+{
+       struct strbuf buf = STRBUF_INIT;
+       int i, ret = 0;
+
+       for (i = 0; i < list->nr; i++) {
+               strbuf_addf(&buf, "option %s ", name);
+               quote_c_style(list->items[i].string, &buf, NULL, 0);
+               strbuf_addch(&buf, '\n');
+
+               if ((ret = strbuf_set_helper_option(data, &buf)))
+                       break;
+               strbuf_reset(&buf);
+       }
+       strbuf_release(&buf);
+       return ret;
+}
+
 static int set_helper_option(struct transport *transport,
                          const char *name, const char *value)
 {
@@ -272,6 +316,10 @@ static int set_helper_option(struct transport *transport,
        if (!data->option)
                return 1;
 
+       if (!strcmp(name, "deepen-not"))
+               return string_list_set_helper_option(data, name,
+                                                    (struct string_list *)value);
+
        for (i = 0; i < ARRAY_SIZE(unsupported_options); i++) {
                if (!strcmp(name, unsupported_options[i]))
                        return 1;
@@ -291,20 +339,7 @@ static int set_helper_option(struct transport *transport,
                quote_c_style(value, &buf, NULL, 0);
        strbuf_addch(&buf, '\n');
 
-       sendline(data, &buf);
-       if (recvline(data, &buf))
-               exit(128);
-
-       if (!strcmp(buf.buf, "ok"))
-               ret = 0;
-       else if (starts_with(buf.buf, "error")) {
-               ret = -1;
-       } else if (!strcmp(buf.buf, "unsupported"))
-               ret = 1;
-       else {
-               warning("%s unexpectedly said: '%s'", data->name, buf.buf);
-               ret = 1;
-       }
+       ret = strbuf_set_helper_option(data, &buf);
        strbuf_release(&buf);
        return ret;
 }
@@ -312,15 +347,27 @@ static int set_helper_option(struct transport *transport,
 static void standard_options(struct transport *t)
 {
        char buf[16];
-       int n;
        int v = t->verbose;
 
        set_helper_option(t, "progress", t->progress ? "true" : "false");
 
-       n = snprintf(buf, sizeof(buf), "%d", v + 1);
-       if (n >= sizeof(buf))
-               die("impossibly large verbosity value");
+       xsnprintf(buf, sizeof(buf), "%d", v + 1);
        set_helper_option(t, "verbosity", buf);
+
+       switch (t->family) {
+       case TRANSPORT_FAMILY_ALL:
+               /*
+                * this is already the default,
+                * do not break old remote helpers by setting "all" here
+                */
+               break;
+       case TRANSPORT_FAMILY_IPV4:
+               set_helper_option(t, "family", "ipv4");
+               break;
+       case TRANSPORT_FAMILY_IPV6:
+               set_helper_option(t, "family", "ipv6");
+               break;
+       }
 }
 
 static int release_helper(struct transport *transport)
@@ -347,7 +394,7 @@ static int fetch_with_fetch(struct transport *transport,
                        continue;
 
                strbuf_addf(&buf, "fetch %s %s\n",
-                           sha1_to_hex(posn->old_sha1),
+                           oid_to_hex(&posn->old_oid),
                            posn->symref ? posn->symref : posn->name);
        }
 
@@ -490,7 +537,7 @@ static int fetch_with_import(struct transport *transport,
                else
                        private = xstrdup(name);
                if (private) {
-                       if (read_ref(private, posn->old_sha1) < 0)
+                       if (read_ref(private, posn->old_oid.hash) < 0)
                                die("Could not read ref %s", private);
                        free(private);
                }
@@ -757,13 +804,35 @@ static int push_update_refs_status(struct helper_data *data,
                private = apply_refspecs(data->refspecs, data->refspec_nr, ref->name);
                if (!private)
                        continue;
-               update_ref("update by helper", private, ref->new_sha1, NULL, 0, 0);
+               update_ref("update by helper", private, ref->new_oid.hash, NULL, 0, 0);
                free(private);
        }
        strbuf_release(&buf);
        return ret;
 }
 
+static void set_common_push_options(struct transport *transport,
+                                  const char *name, int flags)
+{
+       if (flags & TRANSPORT_PUSH_DRY_RUN) {
+               if (set_helper_option(transport, "dry-run", "true") != 0)
+                       die("helper %s does not support dry-run", name);
+       } else if (flags & TRANSPORT_PUSH_CERT_ALWAYS) {
+               if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "true") != 0)
+                       die("helper %s does not support --signed", name);
+       } else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED) {
+               if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "if-asked") != 0)
+                       die("helper %s does not support --signed=if-asked", name);
+       }
+
+       if (flags & TRANSPORT_PUSH_OPTIONS) {
+               struct string_list_item *item;
+               for_each_string_list_item(item, transport->push_options)
+                       if (set_helper_option(transport, "push-option", item->string) != 0)
+                               die("helper %s does not support 'push-option'", name);
+       }
+}
+
 static int push_refs_with_push(struct transport *transport,
                               struct ref *remote_refs, int flags)
 {
@@ -804,7 +873,7 @@ static int push_refs_with_push(struct transport *transport,
                        if (ref->peer_ref)
                                strbuf_addstr(&buf, ref->peer_ref->name);
                        else
-                               strbuf_addstr(&buf, sha1_to_hex(ref->new_sha1));
+                               strbuf_addstr(&buf, oid_to_hex(&ref->new_oid));
                }
                strbuf_addch(&buf, ':');
                strbuf_addstr(&buf, ref->name);
@@ -813,14 +882,14 @@ static int push_refs_with_push(struct transport *transport,
                /*
                 * The "--force-with-lease" options without explicit
                 * values to expect have already been expanded into
-                * the ref->old_sha1_expect[] field; we can ignore
+                * the ref->old_oid_expect[] field; we can ignore
                 * transport->smart_options->cas altogether and instead
                 * can enumerate them from the refs.
                 */
                if (ref->expect_old_sha1) {
                        struct strbuf cas = STRBUF_INIT;
                        strbuf_addf(&cas, "%s:%s",
-                                   ref->name, sha1_to_hex(ref->old_sha1_expect));
+                                   ref->name, oid_to_hex(&ref->old_oid_expect));
                        string_list_append(&cas_options, strbuf_detach(&cas, NULL));
                }
        }
@@ -831,14 +900,7 @@ static int push_refs_with_push(struct transport *transport,
 
        for_each_string_list_item(cas_option, &cas_options)
                set_helper_option(transport, "cas", cas_option->string);
-
-       if (flags & TRANSPORT_PUSH_DRY_RUN) {
-               if (set_helper_option(transport, "dry-run", "true") != 0)
-                       die("helper %s does not support dry-run", data->name);
-       } else if (flags & TRANSPORT_PUSH_CERT) {
-               if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "true") != 0)
-                       die("helper %s does not support --signed", data->name);
-       }
+       set_common_push_options(transport, data->name, flags);
 
        strbuf_addch(&buf, '\n');
        sendline(data, &buf);
@@ -859,14 +921,7 @@ static int push_refs_with_export(struct transport *transport,
        if (!data->refspecs)
                die("remote-helper doesn't support push; refspec needed");
 
-       if (flags & TRANSPORT_PUSH_DRY_RUN) {
-               if (set_helper_option(transport, "dry-run", "true") != 0)
-                       die("helper %s does not support dry-run", data->name);
-       } else if (flags & TRANSPORT_PUSH_CERT) {
-               if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "true") != 0)
-                       die("helper %s does not support --signed", data->name);
-       }
-
+       set_common_push_options(transport, data->name, flags);
        if (flags & TRANSPORT_PUSH_FORCE) {
                if (set_helper_option(transport, "force", "true") != 0)
                        warning("helper %s does not support 'force'", data->name);
@@ -878,13 +933,13 @@ static int push_refs_with_export(struct transport *transport,
 
        for (ref = remote_refs; ref; ref = ref->next) {
                char *private;
-               unsigned char sha1[20];
+               struct object_id oid;
 
                private = apply_refspecs(data->refspecs, data->refspec_nr, ref->name);
-               if (private && !get_sha1(private, sha1)) {
+               if (private && !get_sha1(private, oid.hash)) {
                        strbuf_addf(&buf, "^%s", private);
                        string_list_append(&revlist_args, strbuf_detach(&buf, NULL));
-                       hashcpy(ref->old_sha1, sha1);
+                       oidcpy(&ref->old_oid, &oid);
                }
                free(private);
 
@@ -898,7 +953,7 @@ static int push_refs_with_export(struct transport *transport,
                                        name = resolve_ref_unsafe(
                                                 ref->peer_ref->name,
                                                 RESOLVE_REF_READING,
-                                                sha1, &flag);
+                                                oid.hash, &flag);
                                        if (!name || !(flag & REF_ISSYMREF))
                                                name = ref->peer_ref->name;
 
@@ -1016,13 +1071,13 @@ static struct ref *get_refs_list(struct transport *transport, int for_push)
                if (buf.buf[0] == '@')
                        (*tail)->symref = xstrdup(buf.buf + 1);
                else if (buf.buf[0] != '?')
-                       get_sha1_hex(buf.buf, (*tail)->old_sha1);
+                       get_oid_hex(buf.buf, &(*tail)->old_oid);
                if (eon) {
                        if (has_attribute(eon + 1, "unchanged")) {
                                (*tail)->status |= REF_STATUS_UPTODATE;
                                if (read_ref((*tail)->name,
-                                            (*tail)->old_sha1) < 0)
-                                       die(N_("Could not read ref %s"),
+                                            (*tail)->old_oid.hash) < 0)
+                                       die(_("Could not read ref %s"),
                                            (*tail)->name);
                        }
                }
@@ -1087,7 +1142,7 @@ static void transfer_debug(const char *fmt, ...)
 }
 
 /* Stream state: More data may be coming in this direction. */
-#define SSTATE_TRANSFERING 0
+#define SSTATE_TRANSFERRING 0
 /*
  * Stream state: No more data coming in this direction, flushing rest of
  * data.
@@ -1096,7 +1151,7 @@ static void transfer_debug(const char *fmt, ...)
 /* Stream state: Transfer in this direction finished. */
 #define SSTATE_FINISHED 2
 
-#define STATE_NEEDS_READING(state) ((state) <= SSTATE_TRANSFERING)
+#define STATE_NEEDS_READING(state) ((state) <= SSTATE_TRANSFERRING)
 #define STATE_NEEDS_WRITING(state) ((state) <= SSTATE_FLUSHING)
 #define STATE_NEEDS_CLOSING(state) ((state) == SSTATE_FLUSHING)
 
@@ -1136,7 +1191,7 @@ static void udt_close_if_finished(struct unidirectional_transfer *t)
 }
 
 /*
- * Tries to read read data from source into buffer. If buffer is full,
+ * Tries to read data from source into buffer. If buffer is full,
  * no data is read. Returns 0 on success, -1 on error.
  */
 static int udt_do_read(struct unidirectional_transfer *t)
@@ -1150,7 +1205,7 @@ static int udt_do_read(struct unidirectional_transfer *t)
        bytes = read(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse);
        if (bytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN &&
                errno != EINTR) {
-               error("read(%s) failed: %s", t->src_name, strerror(errno));
+               error_errno("read(%s) failed", t->src_name);
                return -1;
        } else if (bytes == 0) {
                transfer_debug("%s EOF (with %i bytes in buffer)",
@@ -1177,7 +1232,7 @@ static int udt_do_write(struct unidirectional_transfer *t)
        transfer_debug("%s is writable", t->dest_name);
        bytes = xwrite(t->dest, t->buf, t->bufuse);
        if (bytes < 0 && errno != EWOULDBLOCK) {
-               error("write(%s) failed: %s", t->dest_name, strerror(errno));
+               error_errno("write(%s) failed", t->dest_name);
                return -1;
        } else if (bytes > 0) {
                t->bufuse -= bytes;
@@ -1290,7 +1345,7 @@ static int tloop_join(pid_t pid, const char *name)
 {
        int tret;
        if (waitpid(pid, &tret, 0) < 0) {
-               error("%s process failed to wait: %s", name, strerror(errno));
+               error_errno("%s process failed to wait", name);
                return 1;
        }
        if (!WIFEXITED(tret) || WEXITSTATUS(tret)) {
@@ -1353,7 +1408,7 @@ int bidirectional_transfer_loop(int input, int output)
        state.ptg.dest = 1;
        state.ptg.src_is_sock = (input == output);
        state.ptg.dest_is_sock = 0;
-       state.ptg.state = SSTATE_TRANSFERING;
+       state.ptg.state = SSTATE_TRANSFERRING;
        state.ptg.bufuse = 0;
        state.ptg.src_name = "remote input";
        state.ptg.dest_name = "stdout";
@@ -1362,7 +1417,7 @@ int bidirectional_transfer_loop(int input, int output)
        state.gtp.dest = output;
        state.gtp.src_is_sock = 0;
        state.gtp.dest_is_sock = (input == output);
-       state.gtp.state = SSTATE_TRANSFERING;
+       state.gtp.state = SSTATE_TRANSFERRING;
        state.gtp.bufuse = 0;
        state.gtp.src_name = "stdin";
        state.gtp.dest_name = "remote output";