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-rw-r--r--ident.c26
-rwxr-xr-xt/t7518-ident-corner-cases.sh20
2 files changed, 33 insertions, 13 deletions
diff --git a/ident.c b/ident.c
index dde82983ad..ea6034581c 100644
--- a/ident.c
+++ b/ident.c
@@ -351,6 +351,19 @@ const char *fmt_ident(const char *name, const char *email,
int want_date = !(flag & IDENT_NO_DATE);
int want_name = !(flag & IDENT_NO_NAME);
+ if (!email) {
+ if (strict && ident_use_config_only
+ && !(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);
+ die(_("unable to auto-detect email address (got '%s')"), email);
+ }
+ }
+
if (want_name) {
int using_default = 0;
if (!name) {
@@ -378,19 +391,6 @@ const char *fmt_ident(const char *name, const char *email,
}
}
- if (!email) {
- if (strict && ident_use_config_only
- && !(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);
- die(_("unable to auto-detect email address (got '%s')"), email);
- }
- }
-
strbuf_reset(&ident);
if (want_name) {
strbuf_addstr_without_crud(&ident, name);
diff --git a/t/t7518-ident-corner-cases.sh b/t/t7518-ident-corner-cases.sh
new file mode 100755
index 0000000000..6c057afc11
--- /dev/null
+++ b/t/t7518-ident-corner-cases.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+test_description='corner cases in ident strings'
+. ./test-lib.sh
+
+# confirm that we do not segfault _and_ that we do not say "(null)", as
+# glibc systems will quietly handle our NULL pointer
+#
+# Note also that we can't use "env" here because we need to unset a variable,
+# and "-u" is not portable.
+test_expect_success 'empty name and missing email' '
+ (
+ sane_unset GIT_AUTHOR_EMAIL &&
+ GIT_AUTHOR_NAME= &&
+ test_must_fail git commit --allow-empty -m foo 2>err &&
+ test_i18ngrep ! null err
+ )
+'
+
+test_done