Commit Graph

82 Commits

Author SHA1 Message Date
nicm
01defc9f49 Because pledge(2) does not allow us to pass directory file descriptors
around, we can't use file descriptors for the working directory because
we will be unable to pass it to a privileged process to tell it where to
read or write files or spawn children. So move tmux back to using
strings for the current working directory. We try to check it exists
with access() when it is set but ultimately fall back to ~ if it fails
at time of use (or / if that fails too).
2015-10-31 08:13:58 +00:00
nicm
a4b4b29987 Rename cmd_q dead flag to a general flags bitmask (will be more flags later). 2015-09-16 22:24:54 +00:00
nicm
583b4ab72b Set working directory for run-shell and if-shell. 2015-04-24 22:19:36 +00:00
nicm
d16b640fe8 The free callback could end up being fired before the done callback
(happens on Cygwin), so use a reference count instead of a single
flag. SF bug 188 reported by "iceboy".
2015-04-21 21:31:02 +00:00
nicm
bc3786ece9 Pass mouse events through to commands for if-shell. 2015-04-21 15:18:06 +00:00
nicm
bf635e7741 Rewrite of tmux mouse support which was a mess. Instead of having
options for "mouse-this" and "mouse-that", mouse events may be bound as
keys and there is one option "mouse" that turns on mouse support
entirely (set -g mouse on).

See the new MOUSE SUPPORT section of the man page for description of the
key names and new flags (-t= to specify the pane or window under mouse
as a target, and send-keys -M to pass through a mouse event).

The default builtin bindings for the mouse are:

    bind -n   MouseDown1Pane select-pane -t=; send-keys -M
    bind -n MouseDown1Status select-window -t=
    bind -n   MouseDrag1Pane copy-mode -M
    bind -n MouseDrag1Border resize-pane -M

To get the effect of turning mode-mouse off, do:

    unbind -n MouseDrag1Pane
    unbind -temacs-copy MouseDrag1Pane

The old mouse options are now gone, set-option -q may be used to
suppress warnings if mixing configuration files.
2015-04-19 21:34:21 +00:00
nicm
4946f74253 Wrap all the individual format_* calls in a single format_defaults
functions.
2015-02-05 10:29:43 +00:00
nicm
54ca7b230d Add -F to if-shell to allow it to be used to check for format or option
values rather than executing a command.
2014-12-02 23:39:02 +00:00
nicm
45dfc5a074 Instead of setting up the default keys by building the key struct
directly with a helper function in the cmd_entry, include a table of
bind-key commands and pass them through the command parser and a
temporary cmd_q.

As well as being smaller, this will allow default bindings to be command
sequences which will probably be needed soon.
2014-10-20 22:29:25 +00:00
nicm
fc54bfe6b0 Make cmdq->client_exit a tristate (-1 means "not set") so that if
explicitly set it can be copied from child to parent cmdq by if-shell
and source-file. This fixes using attach or new. From Chris Johnsen.
2013-10-10 12:04:38 +00:00
Nicholas Marriott
972da2d498 Try to establish client for run-shell and if-shell if no -t. 2013-03-25 16:04:07 +00:00
Nicholas Marriott
d28a39d01d Extend jobs to support writing and use that for copy-pipe instead of
popen, from Chris Johnsen.
2013-03-25 11:43:01 +00:00
Nicholas Marriott
20636d956d Add a command queue to standardize and simplify commands that call other
commands and allow a command to block execution of subsequent
commands. This allows run-shell and if-shell to be synchronous which has
been much requested.

Each client has a default command queue and commands are consumed one at
a time from it. A command may suspend execution from the queue by
returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() -
for example run-shell does this from the callback that is fired after
the job is freed.

When the command queue becomes empty, command clients are automatically
exited (unless attaching). A callback is also fired - this is used for
nested commands in, for example, if-shell which can block execution of
the client's cmdq until a new cmdq becomes empty.

Also merge all the old error/info/print functions together and lose the
old curclient/cmdclient distinction - a cmdq is bound to one client (or
none if in the configuration file), this is a command client if
c->session is NULL otherwise an attached client.
2013-03-24 09:54:10 +00:00
Nicholas Marriott
66edb3392b Expand format variables in the run-shell and if-shell shell commands,
from Thiago Padilha.
2013-03-24 09:33:35 +00:00
Nicholas Marriott
d1e6ce2672 Add functions to allocate and free command contexts rather than doing it
all on the stack.
2013-03-22 15:49:55 +00:00
Nicholas Marriott
a194430e5d Remove dead code, from Sean Estabrooks. 2012-08-11 07:32:16 +00:00
Nicholas Marriott
ede8312d59 Make command exec functions return an enum rather than -1/0/1 values and
add a new value to mean "leave client running but don't attach" to fix
problems with using some commands in a command sequence. Most of the
work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
Nicholas Marriott
df912e3540 xfree is not particularly helpful, remove it. From Thomas Adam. 2012-07-10 11:53:01 +00:00
Nicholas Marriott
5ed3daf28b Didn't really think the else behaviour through - requiring argv to
contain "else" is silly so just omit that, also some manpage
tweaks. From Tiago Cunha.
2011-10-27 22:40:15 +00:00
Nicholas Marriott
6821ccc882 Add an else clause for if-shell, from "arno-" on SourceForge. 2011-10-18 08:57:01 +00:00
Nicholas Marriott
70d232289b Nuke a redundant if statement, from Tiago Cunha. 2011-05-25 17:50:52 +00:00
Nicholas Marriott
db7a89b1ee Simplify the way jobs work and drop the persist type, so all jobs are
fire-and-forget.

Status jobs now managed with two trees of output (new and old), rather
than storing the output in the jobs themselves. When the status line is
processed any jobs which don't appear in the new tree are started and
the output from the old tree displayed. When a job finishes it updates
the new tree with its output and that is used for any subsequent
redraws. When the status interval expires, the new tree is moved to the
old so that all jobs are run again.

This fixes the "#(echo %H:%M:%S)" problem which would lead to thousands
of identical persistent jobs and high memory use (this can still be
achieved by adding "sleep 30" but that is much less likely to happen by
accident).
2011-01-26 01:54:56 +00:00
Nicholas Marriott
7502cb3adb Clean up and simplify tmux command argument parsing.
Originally, tmux commands were parsed in the client process into a
struct with the command data which was then serialised and sent to the
server to be executed. The parsing was later moved into the server (an
argv was sent from the client), but the parse step and intermediate
struct was kept.

This change removes that struct and the separate parse step. Argument
parsing and printing is now common to all commands (in arguments.c) with
each command left with just an optional check function (to validate the
arguments at parse time), the exec function and a function to set up any
key bindings (renamed from the old init function).

This is overall more simple and consistent.

There should be no changes to any commands behaviour or syntax although
as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
Nicholas Marriott
c87187f913 When changing so that the client passes its stdout and stderr as well as
stdin up to the server, I forgot one essential point - the tmux server
could now be both the producer and consumer. This happens when tmux is
run inside tmux, as well as when piping tmux commands together.

So, using stdio(3) was a bad idea - if sufficient data was written, this
could block in write(2). When that happened and the server was both
producer and consumer, it deadlocks.

Change to use libevent bufferevents for the client stdin, stdout and
stderr instead. This is trivial enough for output but requires a
callback mechanism to trigger when stdin is finished.

This relies on the underlying polling mechanism for libevent to work
with whatever devices to which the user could redirect stdin, stdout or
stderr, hence the change to use poll(2) over kqueue(2) for tmux.
2010-07-24 20:11:59 +00:00
Nicholas Marriott
b9c873cdaa Return the command client return code with MSG_EXIT now that MSG_ERROR and
MSG_PRINT are unused.

New clients should be compatible with old tmux servers but vice versa may print
an error.
2010-07-11 17:06:45 +00:00
Nicholas Marriott
76ef8770cd Get rid of the ugly CMD_CHFLAG macro and use a const string (eg "dDU") in the
command entry structs and a couple of functions to check/set the flags.
2009-11-13 19:53:28 +00:00
Nicholas Marriott
2f813ef75d Add a flag for jobs that shouldn't be freed after they've died and use it for
status jobs, then only kill those jobs when status-left, status-right or
set-titles-string is changed.

Fixes problems with changing options from inside #().
2009-11-01 23:20:37 +00:00
Nicholas Marriott
325e20d76d Convert if-shell over to the background job framework as well. 2009-10-11 09:10:57 +00:00
Nicholas Marriott
6fab9a3e6f Use KEYC_NONE constant instead of 0 on init. 2009-09-21 15:32:06 +00:00
Nicholas Marriott
34a82e7629 Make all messages sent between the client and server fixed size.
This is the first of two changes to make the protocol more resilient and less
sensitive to other changes in the code, particularly with commands. The client
now packs argv into a buffer and sends it to the server for parsing, rather
than doing it itself and sending the parsed command data.

As a side-effect this also removes a lot of now-unused command marshalling
code.

Mixing a server without this change and a client with or vice versa will cause
tmux to hang or crash, please ensure that tmux is entirely killed before
upgrading.
2009-07-26 12:58:44 +00:00
Nicholas Marriott
5f108d9df6 Having fixed flags for single-character getopt options is a bit hard to
maintain and is only going to get worse as more are used. So instead, add a new
uint64_t member to cmd_entry which is a bitmask of upper and lowercase options
accepted by the command.

This means new single character options can be used without the need to add it
explicitly to the list.
2009-07-13 23:11:35 +00:00
Nicholas Marriott
81181bfb72 New command, if-shell (alias if). Executes the tmux command in the second
argument if the shell command in the first succeeds, for example:

       if "[ -e ~/.tmux.conf.alt ]" "source .tmux.conf.alt"

Written by Tiago Cunha, many thanks.
2009-07-09 15:47:49 +00:00