Chapril/xmpp.chapril.org-ejabberd
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New command to dump a table to text file.

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SVN Revision: 2389
This commit is contained in:
Badlop 2009-07-23 15:23:08 +00:00
parent 140d938bc3
commit 164e1520d4
1 changed files with 36 additions and 17 deletions
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53
src/ejabberd_admin.erl
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@ -39,9 +39,9 @@
delete_expired_messages/0, delete_old_messages/1,
%% Mnesia
backup_mnesia/1, restore_mnesia/1,
dump_mnesia/1, load_mnesia/1,
dump_mnesia/1, dump_table/2, load_mnesia/1,
install_fallback_mnesia/1,
dump_to_textfile/1,
dump_to_textfile/1, dump_to_textfile/2,
mnesia_change_nodename/4,
restore/1 % Still used by some modules
]).
@ -133,6 +133,10 @@ commands() ->
desc = "Dump the database to text file",
module = ?MODULE, function = dump_mnesia,
args = [{file, string}], result = {res, restuple}},
#ejabberd_commands{name = dump_table, tags = [mnesia],
desc = "Dump a table to text file",
module = ?MODULE, function = dump_table,
args = [{file, string}, {table, string}], result = {res, restuple}},
#ejabberd_commands{name = load, tags = [mnesia],
desc = "Restore the database from text file",
module = ?MODULE, function = load_mnesia,
@ -320,19 +324,7 @@ module_tables(mod_shared_roster) -> [sr_group, sr_user];
module_tables(mod_vcard) -> [vcard, vcard_search];
module_tables(_Other) -> [].
dump_mnesia(Path) ->
case dump_to_textfile(Path) of
ok ->
{ok, ""};
{error, Reason} ->
String = io_lib:format("Can't store dump in ~p at node ~p: ~p",
[filename:absname(Path), node(), Reason]),
{cannot_dump, String}
end.
dump_to_textfile(File) ->
dump_to_textfile(mnesia:system_info(is_running), file:open(File, [write])).
dump_to_textfile(yes, {ok, F}) ->
get_local_tables() ->
Tabs1 = lists:delete(schema, mnesia:system_info(local_tables)),
Tabs = lists:filter(
fun(T) ->
@ -342,6 +334,33 @@ dump_to_textfile(yes, {ok, F}) ->
_ -> false
end
end, Tabs1),
Tabs.
dump_mnesia(Path) ->
Tabs = get_local_tables(),
dump_tables(Path, Tabs).
dump_table(Path, STable) ->
Table = list_to_atom(STable),
dump_tables(Path, [Table]).
dump_tables(Path, Tables) ->
case dump_to_textfile(Path, Tables) of
ok ->
{ok, ""};
{error, Reason} ->
String = io_lib:format("Can't store dump in ~p at node ~p: ~p",
[filename:absname(Path), node(), Reason]),
{cannot_dump, String}
end.
dump_to_textfile(File) ->
Tabs = get_local_tables(),
dump_to_textfile(File, Tabs).
dump_to_textfile(File, Tabs) ->
dump_to_textfile(mnesia:system_info(is_running), Tabs, file:open(File, [write])).
dump_to_textfile(yes, Tabs, {ok, F}) ->
Defs = lists:map(
fun(T) -> {T, [{record_name, mnesia:table_info(T, record_name)},
{attributes, mnesia:table_info(T, attributes)}]}
@ -350,10 +369,10 @@ dump_to_textfile(yes, {ok, F}) ->
io:format(F, "~p.~n", [{tables, Defs}]),
lists:foreach(fun(T) -> dump_tab(F, T) end, Tabs),
file:close(F);
dump_to_textfile(_, {ok, F}) ->
dump_to_textfile(_, _, {ok, F}) ->
file:close(F),
{error, mnesia_not_running};
dump_to_textfile(_, {error, Reason}) ->
dump_to_textfile(_, _, {error, Reason}) ->
{error, Reason}.
dump_tab(F, T) ->