[nongnu] elpa/helm a837e849ce 2/4: Reset cache with prefarg

[ELPA Syncer]

branch: elpa/helm
commit a837e849ce6c64f948be4531d720cc3745ff250f
Author: Thierry Volpiatto <thievol@posteo.net>
Commit: Thierry Volpiatto <thievol@posteo.net>

    Reset cache with prefarg
---
 helm-elisp.el | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/helm-elisp.el b/helm-elisp.el
index a7bab929e6..796baab4e6 100644
--- a/helm-elisp.el
+++ b/helm-elisp.el
@@ -912,7 +912,7 @@ a string, i.e. the `symbol-name' of any existing symbol."
                   dir nil (concat (regexp-opt (get-load-suffixes)) "\\'"))))
 
 ;;;###autoload
-(defun helm-locate-library ()
+(defun helm-locate-library (&optional arg)
   "Preconfigured helm to locate elisp libraries.
 
 When `completions-detailed' or `helm-completions-detailed' is non nil, a 
description
@@ -923,8 +923,12 @@ package, using M-x psession-make-persistent-variable.
 NOTE: The caches affect as well `find-libray' and `locate-library' when
 `helm-mode' is enabled and `completions-detailed' is non nil.
 There is no need to refresh the caches, they will be updated automatically if
-some new libraries are found."
-  (interactive)
+some new libraries are found, however when a library update its headers and the
+description change you can reset the caches with a prefix arg."
+  (interactive "P")
+  (when arg
+    (setq helm--locate-library-cache nil)
+    (clrhash helm--locate-library-doc-cache))
   (message "Please wait, scanning libraries...")
   (helm :sources
         (helm-build-in-buffer-source  "Elisp libraries (Scan)"