Commit 090101cf authored by Chong Yidong's avatar Chong Yidong

* fileio.c: Revert 2009-07-16 changes.

(Vauto_save_include_big_deletions): New variable.
(Fdo_auto_save): Disable auto-save only if auto-save-include-big-deletions is nil.
parent e6583e3d
2009-07-21 Chong Yidong <cyd@stupidchicken.com>
* fileio.c: Revert 2009-07-16 changes.
(Vauto_save_include_big_deletions): New variable.
(Fdo_auto_save): Disable auto-save only if
auto-save-include-big-deletions is nil.
2009-07-21 Chong Yidong <cyd@stupidchicken.com>
* xdisp.c (move_it_to): For continued lines ending in a tab, take
......
......@@ -193,6 +193,9 @@ Lisp_Object Vauto_save_list_file_name;
/* Whether or not files are auto-saved into themselves. */
Lisp_Object Vauto_save_visited_file_name;
/* Whether or not to continue auto-saving after a large deletion. */
Lisp_Object Vauto_save_include_big_deletions;
/* On NT, specifies the directory separator character, used (eg.) when
expanding file names. This can be bound to / or \. */
Lisp_Object Vdirectory_sep_char;
......@@ -4492,8 +4495,7 @@ This calls `write-region-annotate-functions' at the start, and
if (visiting)
{
SAVE_MODIFF = MODIFF;
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->filename = visit_file;
}
UNGCPRO;
......@@ -4704,8 +4706,7 @@ This calls `write-region-annotate-functions' at the start, and
if (visiting)
{
SAVE_MODIFF = MODIFF;
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->filename = visit_file;
update_mode_lines++;
}
......@@ -5309,7 +5310,7 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
&& BUF_SAVE_MODIFF (b) < BUF_MODIFF (b)
&& b->auto_save_modified < BUF_MODIFF (b)
/* -1 means we've turned off autosaving for a while--see below. */
&& XINT (b->save_length) != -1
&& XINT (b->save_length) >= 0
&& (do_handled_files
|| NILP (Ffind_file_name_handler (b->auto_save_file_name,
Qwrite_region))))
......@@ -5323,8 +5324,8 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
&& EMACS_SECS (before_time) - b->auto_save_failure_time < 1200)
continue;
if (XINT (b->save_length) != -2
/* -2 is a magic flag turning off this feature in a buffer. */
set_buffer_internal (b);
if (NILP (Vauto_save_include_big_deletions)
&& (XFASTINT (b->save_length) * 10
> (BUF_Z (b) - BUF_BEG (b)) * 13)
/* A short file is likely to change a large fraction;
......@@ -5345,14 +5346,12 @@ A non-nil CURRENT-ONLY argument means save only current buffer. */)
Fsleep_for (make_number (1), Qnil);
continue;
}
set_buffer_internal (b);
if (!auto_saved && NILP (no_message))
message1 ("Auto-saving...");
internal_condition_case (auto_save_1, Qt, auto_save_error);
auto_saved++;
b->auto_save_modified = BUF_MODIFF (b);
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
XSETFASTINT (current_buffer->save_length, Z - BEG);
set_buffer_internal (old);
EMACS_GET_TIME (after_time);
......@@ -5397,8 +5396,7 @@ No auto-save file will be written until the buffer changes again. */)
()
{
current_buffer->auto_save_modified = MODIFF;
if (XINT (current_buffer->save_length) != -2)
XSETFASTINT (current_buffer->save_length, Z - BEG);
XSETFASTINT (current_buffer->save_length, Z - BEG);
current_buffer->auto_save_failure_time = -1;
return Qnil;
}
......@@ -5710,6 +5708,13 @@ a non-nil value. */);
Normally auto-save files are written under other names. */);
Vauto_save_visited_file_name = Qnil;
DEFVAR_LISP ("auto-save-include-big-deletions", &Vauto_save_include_big_deletions,
doc: /* If non-nil, auto-save even if a large part of the text is deleted.
If nil, deleting a substantial portion of the text disables auto-save
in the buffer; this is the default behavior, because the auto-save
file is usually more useful if it contains the deleted text. */);
Vauto_save_include_big_deletions = Qnil;
#ifdef HAVE_FSYNC
DEFVAR_BOOL ("write-region-inhibit-fsync", &write_region_inhibit_fsync,
doc: /* *Non-nil means don't call fsync in `write-region'.
......
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