Patch 7.0.147
Problem:    When creating a session file and there are several tab pages and
            some windows have a local directory a short file name may be used
            when it's not valid. (Marius Roets)
            A session with multiple tab pages may result in "No Name" buffers.
            (Bill McCarthy)
Solution:   Don't enter tab pages when going through the list, only use a
            pointer to the first window in each tab page.
            Use "tabedit" instead of "tabnew | edit" when possible.
Files:      src/ex_docmd.c


*** ../vim-7.0.146/src/ex_docmd.c       Sun Sep 10 21:05:39 2006
--- src/ex_docmd.c      Tue Oct 24 12:55:11 2006
***************
*** 9643,9649 ****
  #endif
  
  #ifdef FEAT_SESSION
! static int ses_winsizes __ARGS((FILE *fd, int restore_size));
  static int ses_win_rec __ARGS((FILE *fd, frame_T *fr));
  static frame_T *ses_skipframe __ARGS((frame_T *fr));
  static int ses_do_frame __ARGS((frame_T *fr));
--- 9643,9650 ----
  #endif
  
  #ifdef FEAT_SESSION
! static int ses_winsizes __ARGS((FILE *fd, int restore_size,
!                                                       win_T *tab_firstwin));
  static int ses_win_rec __ARGS((FILE *fd, frame_T *fr));
  static frame_T *ses_skipframe __ARGS((frame_T *fr));
  static int ses_do_frame __ARGS((frame_T *fr));
***************
*** 9669,9676 ****
      win_T     *wp;
      char_u    *sname;
      win_T     *edited_win = NULL;
-     tabpage_T *old_curtab = curtab;
      int               tabnr;
  
      if (ssop_flags & SSOP_BUFFERS)
        only_save_windows = FALSE;              /* Save ALL buffers */
--- 9670,9677 ----
      win_T     *wp;
      char_u    *sname;
      win_T     *edited_win = NULL;
      int               tabnr;
+     win_T     *tab_firstwin;
  
      if (ssop_flags & SSOP_BUFFERS)
        only_save_windows = FALSE;              /* Save ALL buffers */
***************
*** 9778,9791 ****
      /*
       * May repeat putting Windows for each tab, when "tabpages" is in
       * 'sessionoptions'.
       */
      for (tabnr = 1; ; ++tabnr)
      {
        if ((ssop_flags & SSOP_TABPAGES))
        {
!           goto_tabpage(tabnr);
!           if (tabnr > 1 && put_line(fd, "tabnew") == FAIL)
!               return FAIL;
        }
  
        /*
--- 9779,9804 ----
      /*
       * May repeat putting Windows for each tab, when "tabpages" is in
       * 'sessionoptions'.
+      * Don't use goto_tabpage(), it may change directory and trigger
+      * autocommands.
       */
+     tab_firstwin = firstwin;  /* first window in tab page "tabnr" */
      for (tabnr = 1; ; ++tabnr)
      {
+       int  need_tabnew = FALSE;
+ 
        if ((ssop_flags & SSOP_TABPAGES))
        {
!           tabpage_T *tp = find_tabpage(tabnr);
! 
!           if (tp == NULL)
!               break;          /* done all tab pages */
!           if (tp == curtab)
!               tab_firstwin = firstwin;
!           else
!               tab_firstwin = tp->tp_firstwin;
!           if (tabnr > 1)
!               need_tabnew = TRUE;
        }
  
        /*
***************
*** 9793,9799 ****
         * is aborted we don't end up with a number of useless windows.
         * This may have side effects! (e.g., compressed or network file).
         */
!       for (wp = firstwin; wp != NULL; wp = wp->w_next)
        {
            if (ses_do_win(wp)
                    && wp->w_buffer->b_ffname != NULL
--- 9806,9812 ----
         * is aborted we don't end up with a number of useless windows.
         * This may have side effects! (e.g., compressed or network file).
         */
!       for (wp = tab_firstwin; wp != NULL; wp = wp->w_next)
        {
            if (ses_do_win(wp)
                    && wp->w_buffer->b_ffname != NULL
***************
*** 9803,9817 ****
  #endif
                    )
            {
!               if (fputs("edit ", fd) < 0
                        || ses_fname(fd, wp->w_buffer, &ssop_flags) == FAIL)
                    return FAIL;
                if (!wp->w_arg_idx_invalid)
                    edited_win = wp;
                break;
            }
        }
  
        /*
         * Save current window layout.
         */
--- 9816,9835 ----
  #endif
                    )
            {
!               if (fputs(need_tabnew ? "tabedit " : "edit ", fd) < 0
                        || ses_fname(fd, wp->w_buffer, &ssop_flags) == FAIL)
                    return FAIL;
+               need_tabnew = FALSE;
                if (!wp->w_arg_idx_invalid)
                    edited_win = wp;
                break;
            }
        }
  
+       /* If no file got edited create an empty tab page. */
+       if (need_tabnew && put_line(fd, "tabnew") == FAIL)
+           return FAIL;
+ 
        /*
         * Save current window layout.
         */
***************
*** 9829,9835 ****
         * Remember the window number of the current window after restoring.
         */
        nr = 0;
!       for (wp = firstwin; wp != NULL; wp = W_NEXT(wp))
        {
            if (ses_do_win(wp))
                ++nr;
--- 9847,9853 ----
         * Remember the window number of the current window after restoring.
         */
        nr = 0;
!       for (wp = tab_firstwin; wp != NULL; wp = W_NEXT(wp))
        {
            if (ses_do_win(wp))
                ++nr;
***************
*** 9852,9864 ****
         */
        if (put_line(fd, "set winheight=1 winwidth=1") == FAIL)
            return FAIL;
!       if (nr > 1 && ses_winsizes(fd, restore_size) == FAIL)
            return FAIL;
  
        /*
         * Restore the view of the window (options, file, cursor, etc.).
         */
!       for (wp = firstwin; wp != NULL; wp = wp->w_next)
        {
            if (!ses_do_win(wp))
                continue;
--- 9870,9882 ----
         */
        if (put_line(fd, "set winheight=1 winwidth=1") == FAIL)
            return FAIL;
!       if (nr > 1 && ses_winsizes(fd, restore_size, tab_firstwin) == FAIL)
            return FAIL;
  
        /*
         * Restore the view of the window (options, file, cursor, etc.).
         */
!       for (wp = tab_firstwin; wp != NULL; wp = wp->w_next)
        {
            if (!ses_do_win(wp))
                continue;
***************
*** 9879,9897 ****
         * Restore window sizes again after jumping around in windows, because
         * the current window has a minimum size while others may not.
         */
!       if (nr > 1 && ses_winsizes(fd, restore_size) == FAIL)
            return FAIL;
  
        /* Don't continue in another tab page when doing only the current one
         * or when at the last tab page. */
!       if (!(ssop_flags & SSOP_TABPAGES) || curtab->tp_next == NULL)
            break;
      }
  
      if (ssop_flags & SSOP_TABPAGES)
      {
-       if (valid_tabpage(old_curtab))
-           goto_tabpage_tp(old_curtab);
        if (fprintf(fd, "tabnext %d", tabpage_index(curtab)) < 0
                || put_eol(fd) == FAIL)
            return FAIL;
--- 9897,9913 ----
         * Restore window sizes again after jumping around in windows, because
         * the current window has a minimum size while others may not.
         */
!       if (nr > 1 && ses_winsizes(fd, restore_size, tab_firstwin) == FAIL)
            return FAIL;
  
        /* Don't continue in another tab page when doing only the current one
         * or when at the last tab page. */
!       if (!(ssop_flags & SSOP_TABPAGES))
            break;
      }
  
      if (ssop_flags & SSOP_TABPAGES)
      {
        if (fprintf(fd, "tabnext %d", tabpage_index(curtab)) < 0
                || put_eol(fd) == FAIL)
            return FAIL;
***************
*** 9927,9942 ****
  }
  
      static int
! ses_winsizes(fd, restore_size)
      FILE      *fd;
      int               restore_size;
  {
      int               n = 0;
      win_T     *wp;
  
      if (restore_size && (ssop_flags & SSOP_WINSIZE))
      {
!       for (wp = firstwin; wp != NULL; wp = wp->w_next)
        {
            if (!ses_do_win(wp))
                continue;
--- 9943,9959 ----
  }
  
      static int
! ses_winsizes(fd, restore_size, tab_firstwin)
      FILE      *fd;
      int               restore_size;
+     win_T     *tab_firstwin;
  {
      int               n = 0;
      win_T     *wp;
  
      if (restore_size && (ssop_flags & SSOP_WINSIZE))
      {
!       for (wp = tab_firstwin; wp != NULL; wp = wp->w_next)
        {
            if (!ses_do_win(wp))
                continue;
*** ../vim-7.0.146/src/version.c        Fri Oct 20 20:15:05 2006
--- src/version.c       Tue Oct 24 12:57:04 2006
***************
*** 668,669 ****
--- 668,671 ----
  {   /* Add new patch number below this line */
+ /**/
+     147,
  /**/

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