Revert "Merge branch 'jc/graduate-remote-hg-bzr' (early part)"
[git/git.git] / transport-helper.c
index 86e1679..b468e4f 100644 (file)
@@ -58,7 +58,7 @@ static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name)
        if (strbuf_getline(buffer, helper, '\n') == EOF) {
                if (debug)
                        fprintf(stderr, "Debug: Remote helper quit.\n");
-               exit(128);
+               return 1;
        }
 
        if (debug)
@@ -71,12 +71,6 @@ static int recvline(struct helper_data *helper, struct strbuf *buffer)
        return recvline_fh(helper->out, buffer, helper->name);
 }
 
-static void xchgline(struct helper_data *helper, struct strbuf *buffer)
-{
-       sendline(helper, buffer);
-       recvline(helper, buffer);
-}
-
 static void write_constant(int fd, const char *str)
 {
        if (debug)
@@ -163,7 +157,8 @@ static struct child_process *get_helper(struct transport *transport)
        while (1) {
                const char *capname;
                int mandatory = 0;
-               recvline(data, &buf);
+               if (recvline(data, &buf))
+                       exit(128);
 
                if (!*buf.buf)
                        break;
@@ -200,15 +195,9 @@ static struct child_process *get_helper(struct transport *transport)
                } else if (!strcmp(capname, "signed-tags")) {
                        data->signed_tags = 1;
                } else if (starts_with(capname, "export-marks ")) {
-                       struct strbuf arg = STRBUF_INIT;
-                       strbuf_addstr(&arg, "--export-marks=");
-                       strbuf_addstr(&arg, capname + strlen("export-marks "));
-                       data->export_marks = strbuf_detach(&arg, NULL);
+                       data->export_marks = xstrdup(capname + strlen("export-marks "));
                } else if (starts_with(capname, "import-marks")) {
-                       struct strbuf arg = STRBUF_INIT;
-                       strbuf_addstr(&arg, "--import-marks=");
-                       strbuf_addstr(&arg, capname + strlen("import-marks "));
-                       data->import_marks = strbuf_detach(&arg, NULL);
+                       data->import_marks = xstrdup(capname + strlen("import-marks "));
                } else if (starts_with(capname, "no-private-update")) {
                        data->no_private_update = 1;
                } else if (mandatory) {
@@ -307,7 +296,9 @@ static int set_helper_option(struct transport *transport,
                quote_c_style(value, &buf, NULL, 0);
        strbuf_addch(&buf, '\n');
 
-       xchgline(data, &buf);
+       sendline(data, &buf);
+       if (recvline(data, &buf))
+               exit(128);
 
        if (!strcmp(buf.buf, "ok"))
                ret = 0;
@@ -379,7 +370,8 @@ static int fetch_with_fetch(struct transport *transport,
        sendline(data, &buf);
 
        while (1) {
-               recvline(data, &buf);
+               if (recvline(data, &buf))
+                       exit(128);
 
                if (starts_with(buf.buf, "lock ")) {
                        const char *name = buf.buf + 5;
@@ -430,6 +422,8 @@ static int get_exporter(struct transport *transport,
        struct helper_data *data = transport->data;
        struct child_process *helper = get_helper(transport);
        int argc = 0, i;
+       struct strbuf tmp = STRBUF_INIT;
+
        memset(fastexport, 0, sizeof(*fastexport));
 
        /* we need to duplicate helper->in because we want to use it after
@@ -440,10 +434,14 @@ static int get_exporter(struct transport *transport,
        fastexport->argv[argc++] = "--use-done-feature";
        fastexport->argv[argc++] = data->signed_tags ?
                "--signed-tags=verbatim" : "--signed-tags=warn-strip";
-       if (data->export_marks)
-               fastexport->argv[argc++] = data->export_marks;
-       if (data->import_marks)
-               fastexport->argv[argc++] = data->import_marks;
+       if (data->export_marks) {
+               strbuf_addf(&tmp, "--export-marks=%s.tmp", data->export_marks);
+               fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
+       }
+       if (data->import_marks) {
+               strbuf_addf(&tmp, "--import-marks=%s", data->import_marks);
+               fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
+       }
 
        for (i = 0; i < revlist_args->nr; i++)
                fastexport->argv[argc++] = revlist_args->items[i].string;
@@ -563,7 +561,9 @@ static int process_connect_service(struct transport *transport,
                goto exit;
 
        sendline(data, &cmdbuf);
-       recvline_fh(input, &cmdbuf, name);
+       if (recvline_fh(input, &cmdbuf, name))
+               exit(128);
+
        if (!strcmp(cmdbuf.buf, "")) {
                data->no_disconnect_req = 1;
                if (debug)
@@ -739,16 +739,22 @@ static int push_update_ref_status(struct strbuf *buf,
        return !(status == REF_STATUS_OK);
 }
 
-static void push_update_refs_status(struct helper_data *data,
+static int push_update_refs_status(struct helper_data *data,
                                    struct ref *remote_refs,
                                    int flags)
 {
        struct strbuf buf = STRBUF_INIT;
        struct ref *ref = remote_refs;
+       int ret = 0;
+
        for (;;) {
                char *private;
 
-               recvline(data, &buf);
+               if (recvline(data, &buf)) {
+                       ret = 1;
+                       break;
+               }
+
                if (!buf.len)
                        break;
 
@@ -766,6 +772,7 @@ static void push_update_refs_status(struct helper_data *data,
                free(private);
        }
        strbuf_release(&buf);
+       return ret;
 }
 
 static int push_refs_with_push(struct transport *transport,
@@ -846,8 +853,7 @@ static int push_refs_with_push(struct transport *transport,
        sendline(data, &buf);
        strbuf_release(&buf);
 
-       push_update_refs_status(data, remote_refs, flags);
-       return 0;
+       return push_update_refs_status(data, remote_refs, flags);
 }
 
 static int push_refs_with_export(struct transport *transport,
@@ -905,7 +911,15 @@ static int push_refs_with_export(struct transport *transport,
 
        if (finish_command(&exporter))
                die("Error while running fast-export");
-       push_update_refs_status(data, remote_refs, flags);
+       if (push_update_refs_status(data, remote_refs, flags))
+               return 1;
+
+       if (data->export_marks) {
+               strbuf_addf(&buf, "%s.tmp", data->export_marks);
+               rename(buf.buf, data->export_marks);
+               strbuf_release(&buf);
+       }
+
        return 0;
 }
 
@@ -974,7 +988,8 @@ static struct ref *get_refs_list(struct transport *transport, int for_push)
 
        while (1) {
                char *eov, *eon;
-               recvline(data, &buf);
+               if (recvline(data, &buf))
+                       exit(128);
 
                if (!*buf.buf)
                        break;