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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.392
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.392
+Problem: When setting 'undofile' while the file is already loaded but
+ unchanged, try reading the undo file. (Andy Wokula)
+Solution: Compute a checksum of the text when 'undofile' is set. (Christian
+ Brabandt)
+Files: src/option.c, src/testdir/test72.in, src/testdir/test72.ok
+
+
+*** ../vim-7.3.391/src/option.c 2011-11-30 11:31:25.000000000 +0100
+--- src/option.c 2012-01-04 19:34:11.000000000 +0100
+***************
+*** 7516,7521 ****
+--- 7516,7545 ----
+ compatible_set();
+ }
+
++ #ifdef FEAT_PERSISTENT_UNDO
++ /* 'undofile' */
++ else if ((int *)varp == &curbuf->b_p_udf || (int *)varp == &p_udf)
++ {
++ char_u hash[UNDO_HASH_SIZE];
++ buf_T *save_curbuf = curbuf;
++
++ for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
++ {
++ /* When 'undofile' is set globally: for every buffer, otherwise
++ * only for the current buffer: Try to read in the undofile, if
++ * one exists and the buffer wasn't changed. */
++ if ((curbuf == save_curbuf
++ || (opt_flags & OPT_GLOBAL) || opt_flags == 0)
++ && !curbufIsChanged())
++ {
++ u_compute_hash(hash);
++ u_read_undo(NULL, hash, curbuf->b_fname);
++ }
++ }
++ curbuf = save_curbuf;
++ }
++ #endif
++
+ /* 'list', 'number' */
+ else if ((int *)varp == &curwin->w_p_list
+ || (int *)varp == &curwin->w_p_nu
+*** ../vim-7.3.391/src/testdir/test72.in 2010-08-15 21:57:29.000000000 +0200
+--- src/testdir/test72.in 2012-01-04 19:04:17.000000000 +0100
+***************
+*** 51,56 ****
+--- 51,62 ----
+ :e Xtestfile
+ uuu:w >>test.out
+ :"
++ :" Test that reading the undofiles when setting undofile works
++ :set noundofile ul=0
++ i
++ u:e! Xtestfile
++ :set undofile ul=100
++ uuuuuu:w >>test.out
+ :" And now with encryption, cryptmethod=zip
+ :e! Xtestfile
+ :set undofile cm=zip
+*** ../vim-7.3.391/src/testdir/test72.ok 2010-08-15 21:57:29.000000000 +0200
+--- src/testdir/test72.ok 2012-01-04 19:04:17.000000000 +0100
+***************
+*** 7,12 ****
+--- 7,22 ----
+ eight
+ nine
+ ten
++ one
++ two
++ three
++ four
++ five
++ six
++ seven
++ eight
++ nine
++ ten
+ monday
+ wednesday
+ thursday
+*** ../vim-7.3.391/src/version.c 2012-01-04 14:35:31.000000000 +0100
+--- src/version.c 2012-01-04 19:33:41.000000000 +0100
+***************
+*** 716,717 ****
+--- 716,719 ----
+ { /* Add new patch number below this line */
++ /**/
++ 392,
+ /**/
+
+--
+BROTHER MAYNARD: Armaments Chapter Two Verses Nine to Twenty One.
+ANOTHER MONK: And St. Attila raised his hand grenade up on high saying "O
+ Lord bless this thy hand grenade that with it thou mayest
+ blow thine enemies to tiny bits, in thy mercy. "and the Lord
+ did grin and people did feast upon the lambs and sloths and
+ carp and anchovies and orang-utans and breakfast cereals and
+ fruit bats and...
+BROTHER MAYNARD: Skip a bit brother ...
+ "Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
+/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\ an exciting new programming language -- http://www.Zimbu.org ///
+ \\\ help me help AIDS victims -- http://ICCF-Holland.org ///