Create missing parent directories of temporary files

* src/util.c (make_tempfile): Create missing directories when
necessary.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/util.c b/src/util.c
index dc8d122..e03e48a 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1590,6 +1590,7 @@ int
 make_tempfile (char const **name, char letter, char const *real_name,
 	       int flags, mode_t mode)
 {
+  int try_makedirs_errno = ENOENT;
   char *template;
 
   if (real_name)
@@ -1625,9 +1626,18 @@ make_tempfile (char const **name, char letter, char const *real_name,
 
       if (gen_tempname (template, 0, flags, GT_NOCREATE))
         pfatal ("Can't create temporary file %s", template);
+    retry:
       fd = open (template, O_CREAT | O_EXCL | flags, mode);
       if (fd == -1)
         {
+	  if (errno == try_makedirs_errno)
+	    {
+	      makedirs (template);
+	      /* FIXME: When patch fails, this may leave around empty
+	         directories.  */
+	      try_makedirs_errno = 0;
+	      goto retry;
+	    }
 	  if (errno == EEXIST)
 	    continue;
 	  pfatal ("Can't create temporary file %s", template);