Merge branch 'ds/for-each-repo-noopfix'

"git for-each-repo --config=<var> <cmd>" should not run <cmd> for
any repository when the configuration variable <var> is not defined
even once.

* ds/for-each-repo-noopfix:
  for-each-repo: do nothing on empty config

1 files changed, 7 insertions, 0 deletions

diff --git a/builtin/for-each-repo.c b/builtin/for-each-repo.c
index 5bba623ff1..52be64a437 100644
--- a/builtin/for-each-repo.c
+++ b/builtin/for-each-repo.c
@@ -51,6 +51,13 @@ int cmd_for_each_repo(int argc, const char **argv, const char *prefix)
 	values = repo_config_get_value_multi(the_repository,
 					     config_key);
 
+	/*
+	 * Do nothing on an empty list, which is equivalent to the case
+	 * where the config variable does not exist at all.
+	 */
+	if (!values)
+		return 0;
+
 	for (i = 0; !result && i < values->nr; i++)
 		result = run_command_on_repo(values->items[i].string, &args);