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within tmux. There is a global environment, copied from the external environment when the server is started and each sesssion has an (initially empty) session environment which overrides it. New commands set-environment and show-environment manipulate or display the environments. A new session option, update-environment, is a space-separated list of variables which are updated from the external environment into the session environment every time a new session is created - the default is DISPLAY.
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 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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* Show environment.
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*/
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int cmd_show_environment_exec(struct cmd *, struct cmd_ctx *);
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const struct cmd_entry cmd_show_environment_entry = {
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"show-environment", "showenv",
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"[-g] " CMD_TARGET_SESSION_USAGE,
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0, CMD_CHFLAG('g'),
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cmd_target_init,
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cmd_target_parse,
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cmd_show_environment_exec,
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cmd_target_free,
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cmd_target_print
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};
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int
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cmd_show_environment_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_target_data *data = self->data;
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struct session *s;
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struct environ *env;
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struct environ_entry *envent;
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if (data->chflags & CMD_CHFLAG('g'))
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env = &global_environ;
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else {
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if ((s = cmd_find_session(ctx, data->target)) == NULL)
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return (-1);
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env = &s->environ;
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}
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RB_FOREACH(envent, environ, env) {
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if (envent->value != NULL)
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ctx->print(ctx, "%s=%s", envent->name, envent->value);
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else
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ctx->print(ctx, "-%s", envent->name);
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}
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return (0);
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}
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