travis-ci: use 'set -x' in 'ci/*' scripts for extra tracing output

diff --git a/argv-array.c b/argv-array.c
index 256741d2262b237c56b6730bea9d52c9b39b7ee3..5d370fa3366163f8c0c81ca0b6b1a64a7030c696 100644 (file)
--- a/argv-array.c
+++ b/argv-array.c
@@ -49,6 +49,12 @@ void argv_array_pushl(struct argv_array *array, ...)
        va_end(ap);
 }
 
+void argv_array_pushv(struct argv_array *array, const char **argv)
+{
+       for (; *argv; argv++)
+               argv_array_push(array, *argv);
+}
+
 void argv_array_pop(struct argv_array *array)
 {
        if (!array->argc)
@@ -68,3 +74,14 @@ void argv_array_clear(struct argv_array *array)
        }
        argv_array_init(array);
 }
+
+const char **argv_array_detach(struct argv_array *array)
+{
+       if (array->argv == empty_argv)
+               return xcalloc(1, sizeof(const char *));
+       else {
+               const char **ret = array->argv;
+               argv_array_init(array);
+               return ret;
+       }
+}