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https://github.com/tmate-io/tmate.git
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1df427bc7b
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.
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/* $Id: cmd-switch-client.c,v 1.25 2011-01-07 14:45:34 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Switch client to a different session.
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*/
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void cmd_switch_client_key_binding(struct cmd *, int);
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int cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
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const struct cmd_entry cmd_switch_client_entry = {
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"switch-client", "switchc",
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"lc:npt:", 0, 0,
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"[-lnp] [-c target-client] [-t target-session]",
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0,
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cmd_switch_client_key_binding,
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NULL,
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cmd_switch_client_exec
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};
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void
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cmd_switch_client_key_binding(struct cmd *self, int key)
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{
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self->args = args_create(0);
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switch (key) {
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case '(':
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args_set(self->args, 'p', NULL);
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break;
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case ')':
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args_set(self->args, 'n', NULL);
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break;
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case 'L':
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args_set(self->args, 'l', NULL);
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break;
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}
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}
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int
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cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct args *args = self->args;
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struct client *c;
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struct session *s;
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if ((c = cmd_find_client(ctx, args_get(args, 'c'))) == NULL)
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return (-1);
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s = NULL;
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if (args_has(args, 'n')) {
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if ((s = session_next_session(c->session)) == NULL) {
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ctx->error(ctx, "can't find next session");
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return (-1);
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}
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} else if (args_has(args, 'p')) {
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if ((s = session_previous_session(c->session)) == NULL) {
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ctx->error(ctx, "can't find previous session");
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return (-1);
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}
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} else if (args_has(args, 'l')) {
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if (c->last_session != NULL && session_alive(c->last_session))
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s = c->last_session;
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if (s == NULL) {
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ctx->error(ctx, "can't find last session");
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return (-1);
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}
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} else
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s = cmd_find_session(ctx, args_get(args, 't'));
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if (s == NULL)
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return (-1);
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if (c->session != NULL)
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c->last_session = c->session;
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c->session = s;
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session_update_activity(s);
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recalculate_sizes();
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server_check_unattached();
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server_redraw_client(c);
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return (0);
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}
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