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diff src/fileio.c @ 3776:e70485d3f81d v7.3.646

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updated for version 7.3.646 Problem: When reloading a buffer the undo file becomes unusable unless ":w" is executed. (Dmitri Frank) Solution: After reloading the buffer write the undo file. (Christian Brabandt)
author Bram Moolenaar <bram@vim.org>
date Wed, 29 Aug 2012 18:50:54 +0200
parents f07475816079
children c83cd3d01128
line wrap: on
line diff
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -7060,8 +7060,23 @@ buf_check_timestamp(buf, focus)
     }
 
     if (reload)
+    {
 	/* Reload the buffer. */
 	buf_reload(buf, orig_mode);
+#ifdef FEAT_PERSISTENT_UNDO
+	if (buf->b_p_udf && buf->b_ffname != NULL)
+	{
+	    char_u	    hash[UNDO_HASH_SIZE];
+	    buf_T	    *save_curbuf = curbuf;
+
+	    /* Any existing undo file is unusable, write it now. */
+	    curbuf = buf;
+	    u_compute_hash(hash);
+	    u_write_undo(NULL, FALSE, buf, hash);
+	    curbuf = save_curbuf;
+	}
+#endif
+    }
 
 #ifdef FEAT_AUTOCMD
     /* Trigger FileChangedShell when the file was changed in any way. */