Support a history file in gpg-card and gpg-connect-agent.

* common/gpgrlhelp.c (read_write_history): New.
(gnupg_rl_initialize): Register new function.
* common/ttyio.c (my_rl_rw_history): New var.
(tty_private_set_rl_hooks): Add arg read_write_history.
(tty_read_history): New.
(tty_write_history): New.
* tools/gpg-card.c (HISTORYNAME): New.
(oNoHistory): New enum value.
(opts): New option --no-history.
(cmd_history): New.
(cmds): New command "history".
(interactive_loop): Read and save the history.
* tools/gpg-connect-agent.c (HISTORYNAME): New.
(opts): New option --no-history.
(main): Read and save the history.  New command /history.
--

Yeah, finally we have stored history; I should have added this much
earlier.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/gpg-card.texi b/doc/gpg-card.texi
index 0865798d2..be19704cc 100644
--- a/doc/gpg-card.texi
+++ b/doc/gpg-card.texi
@@ -105,6 +105,12 @@ Do not start the gpg-agent if it has not yet been started and its
 service is required.  This option is mostly useful on machines where
 the connection to gpg-agent has been redirected to another machines.
 
+@item --no-history
+@opindex --no-history
+In interactive mode the command line history is usually saved and
+restored to and from a file below the GnuPG home directory.  This
+option inhibits the use of that file.
+
 @item --agent-program @var{file}
 @opindex agent-program
 Specify the agent program to be started if none is running.  The