X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=ident.c;h=7c81fe8d8bfc4c76324277dc7daa39c76ed12cd3;hb=1a82e79315ed633f6b0b1fc4076054950c5380d3;hp=ac1c27f1998b8245132dced5875e022fe24b93ec;hpb=36d277c72d90d32f99616072b64a2652248f5264;p=git.git

diff --git a/ident.c b/ident.c
index ac1c27f1..7c81fe8d 100644
--- a/ident.c
+++ b/ident.c
@@ -140,7 +140,7 @@ static int copy(char *buf, int size, int offset, const char *src)
 
 	/*
 	 * Copy the rest to the buffer, but avoid the special
-	 * characters '\n' '<' and '>' that act as delimeters on
+	 * characters '\n' '<' and '>' that act as delimiters on
 	 * a identification line
 	 */
 	for (i = 0; i < len; i++) {
@@ -156,8 +156,18 @@ static int copy(char *buf, int size, int offset, const char *src)
 	return offset;
 }
 
+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"
+"*** Alternatively, you can use user.name configuration variable.\n\n";
+
 static const char *get_ident(const char *name, const char *email,
-			     const char *date_str)
+			     const char *date_str, int error_on_no_name)
 {
 	static char buffer[1000];
 	char date[50];
@@ -167,6 +177,16 @@ static const char *get_ident(const char *name, const char *email,
 		name = git_default_name;
 	if (!email)
 		email = git_default_email;
+
+	if (!*name) {
+		if (name == git_default_name && env_hint) {
+			fprintf(stderr, env_hint, au_env, co_env);
+			env_hint = NULL; /* warn only once, for "git-var -l" */
+		}
+		if (error_on_no_name)
+			die("empty ident %s <%s> not allowed", name, email);
+	}
+
 	strcpy(date, git_default_date);
 	if (date_str)
 		parse_date(date_str, date, sizeof(date));
@@ -182,16 +202,18 @@ static const char *get_ident(const char *name, const char *email,
 	return buffer;
 }
 
-const char *git_author_info(void)
+const char *git_author_info(int error_on_no_name)
 {
 	return get_ident(getenv("GIT_AUTHOR_NAME"),
 			 getenv("GIT_AUTHOR_EMAIL"),
-			 getenv("GIT_AUTHOR_DATE"));
+			 getenv("GIT_AUTHOR_DATE"),
+			 error_on_no_name);
 }
 
-const char *git_committer_info(void)
+const char *git_committer_info(int error_on_no_name)
 {
 	return get_ident(getenv("GIT_COMMITTER_NAME"),
 			 getenv("GIT_COMMITTER_EMAIL"),
-			 getenv("GIT_COMMITTER_DATE"));
+			 getenv("GIT_COMMITTER_DATE"),
+			 error_on_no_name);
 }