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-rw-r--r--lisp/progmodes/project.el12
1 files changed, 10 insertions, 2 deletions
diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index add0e592f69..7e25869e286 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -874,7 +874,8 @@ Certain buffers may be \"spared\", see `project-kill-buffers-ignores'."
:group 'project)
(defvar project--list 'unset
- "List of known project directories.")
+ "List structure containing root directories of known projects.
+With some possible metadata (to be decided).")
(defun project--read-project-list ()
"Initialize `project--list' using contents of `project-list-file'."
@@ -883,7 +884,14 @@ Certain buffers may be \"spared\", see `project-kill-buffers-ignores'."
(when (file-exists-p filename)
(with-temp-buffer
(insert-file-contents filename)
- (read (current-buffer)))))))
+ (read (current-buffer)))))
+ (unless (seq-every-p
+ (lambda (elt) (and (listp elt)
+ (stringp (car elt))))
+ project--list)
+ (warn "Contents of %s are in wrong format, resetting"
+ project-list-file)
+ (setq project--list nil))))
(defun project--ensure-read-project-list ()
"Initialize `project--list' if it isn't already initialized."