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-rw-r--r--ident.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/ident.c b/ident.c
index 23b8cfc60..09d4d716c 100644
--- a/ident.c
+++ b/ident.c
@@ -46,6 +46,15 @@ static void copy_gecos(struct passwd *w, char *name, int sz)
}
+static const char au_env[] = "GIT_AUTHOR_NAME";
+static const char co_env[] = "GIT_COMMITTER_NAME";
+static const char env_hint[] =
+"\n*** Environment problem:\n"
+"*** Your name cannot be determined from your system services (gecos).\n"
+"*** You would need to set %s and %s\n"
+"*** environment variables; otherwise you won't be able to perform\n"
+"*** certain operations because of \"empty ident\" errors.\n\n";
+
int setup_ident(void)
{
int len;
@@ -57,6 +66,11 @@ int setup_ident(void)
/* Get the name ("gecos") */
copy_gecos(pw, git_default_name, sizeof(git_default_name));
+ if (!*git_default_name) {
+ if (!getenv(au_env) || !getenv(co_env))
+ fprintf(stderr, env_hint, au_env, co_env);
+ }
+
/* Make up a fake email address (name + '@' + hostname [+ '.' + domainname]) */
len = strlen(pw->pw_name);
if (len > sizeof(git_default_email)/2)