ident: give "please tell me" message upon useConfigOnly error

The env_hint message applies perfectly to the case when
user.useConfigOnly is set and at least one of the user.name and the
user.email are not provided.

Additionally, use a less descriptive error message to discourage
users from disabling user.useConfigOnly configuration variable to
work around this error condition.  We want to encourage them to set
user.name or user.email instead.

Signed-off-by: Marios Titas <redneb@gmx.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/ident.c b/ident.c
index b2521ffc01fe84950d0646860a274bb8e3e6ccdc..c766127d75fa9573022bd7a932760a985fdff54b 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -352,8 +352,10 @@ const char *fmt_ident(const char *name, const char *email,
                int using_default = 0;
                if (!name) {
                        if (strict && ident_use_config_only
-                           && !(ident_config_given & IDENT_NAME_GIVEN))
-                               die("user.useConfigOnly set but no name given");
+                           && !(ident_config_given & IDENT_NAME_GIVEN)) {
+                               fputs(env_hint, stderr);
+                               die("no name was given and auto-detection is disabled");
+                       }
                        name = ident_default_name();
                        using_default = 1;
                        if (strict && default_name_is_bogus) {
@@ -375,8 +377,10 @@ const char *fmt_ident(const char *name, const char *email,
 
        if (!email) {
                if (strict && ident_use_config_only
-                   && !(ident_config_given & IDENT_MAIL_GIVEN))
-                       die("user.useConfigOnly set but no mail given");
+                   && !(ident_config_given & IDENT_MAIL_GIVEN)) {
+                       fputs(env_hint, stderr);
+                       die("no email was given and auto-detection is disabled");
+               }
                email = ident_default_email();
                if (strict && default_email_is_bogus) {
                        fputs(env_hint, stderr);