listener: if no new lines, don't save history.

* linenoise/linenoise.c (lino_have_new_lines): New function.

* linenoise/linenoise.h (lino_have_new_lines): Declared.

* parser.c (hist_save): Do nothing if lino_have_new_lines
returns false.

2 files changed, 6 insertions, 0 deletions

diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index 92a5b0e7..67af527c 100644
--- a/linenoise/linenoise.c
+++ b/linenoise/linenoise.c
@@ -2798,6 +2798,11 @@ int lino_hist_load(lino_t *ls, const wchar_t *filename) {
     return 0;
 }
 
+int lino_have_new_lines(lino_t *ls)
+{
+    return ls->history_len > ls->loaded_lines;
+}
+
 void lino_set_result(lino_t *ls, wchar_t *res)
 {
     lino_os.free_fn(ls->result);
diff --git a/linenoise/linenoise.h b/linenoise/linenoise.h
index 05f66632..da6e93de 100644
--- a/linenoise/linenoise.h
+++ b/linenoise/linenoise.h
@@ -115,6 +115,7 @@ int lino_hist_add(lino_t *, const wchar_t *line);
 int lino_hist_set_max_len(lino_t *, int len);
 int lino_hist_save(lino_t *, const wchar_t *filename, int new_only);
 int lino_hist_load(lino_t *, const wchar_t *filename);
+int lino_have_new_lines(lino_t *);
 void lino_set_result(lino_t *, wchar_t *); /* takes ownership of malloced mem; modifies it */
 int lino_clear_screen(lino_t *);
 void lino_set_multiline(lino_t *, int ml);