From c8ed0bc40f20e790a7dfa7204d67a946b7ff6818 Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Fri, 6 Jan 2023 22:53:47 +0000
Subject: Clean up xapian build directory if previous build failed to.

* genenetwork-development.scm (build-xapian-index-gexp): Clean up
xapian build directory if previous build failed to.
---
 genenetwork-development.scm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/genenetwork-development.scm b/genenetwork-development.scm
index 86fc1df..edf59d6 100644
--- a/genenetwork-development.scm
+++ b/genenetwork-development.scm
@@ -228,7 +228,12 @@ genenetwork3 source from the latest commit of @var{project}."
                 (xapian-build-directory (string-append #$%xapian-directory
                                                        "/build")))
             (dynamic-wind
-              (cut mkdir xapian-build-directory)
+              (lambda ()
+                ;; Delete xapian-build-directory in case previous
+                ;; build exited without cleaning up.
+                (when (file-exists? xapian-build-directory)
+                  (delete-file-recursively xapian-build-directory))
+                (mkdir xapian-build-directory))
               (lambda ()
                 ;; Build xapian index.
                 (setenv "PYTHONPATH" (getcwd))
-- 
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