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tmux/cmd-set-environment.c

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Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
/* $OpenBSD$ */
/*
I no longer use my SourceForge address so replace it.
2016-01-19 15:59:12 +00:00
* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Set an environment variable.
*/
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
static enum cmd_retval cmd_set_environment_exec(struct cmd *,
struct cmdq_item *);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
const struct cmd_entry cmd_set_environment_entry = {
Use member names in cmd_entry definitions so I stop getting confused about the order.
2015-12-13 21:53:57 +00:00
.name = "set-environment",
.alias = "setenv",
.args = { "grt:u", 1, 2 },
.usage = "[-gru] " CMD_TARGET_SESSION_USAGE " name [value]",
Get rid of the extra layer of flags and cmd_prepare() and just store the CMD_FIND_* flags in the cmd_entry and call it for the command. Commands with special requirements call it themselves and update the target for hooks to use.
2017-04-22 10:22:39 +00:00
.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
Instead of combined flags for -c, -s, -t, split into different sets using an enum and simplify the parsing code.
2015-12-14 00:31:54 +00:00
Add CMD_AFTERHOOK flag to the easy commands that don't need any special handling.
2016-10-14 22:14:22 +00:00
.flags = CMD_AFTERHOOK,
Use member names in cmd_entry definitions so I stop getting confused about the order.
2015-12-13 21:53:57 +00:00
.exec = cmd_set_environment_exec
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
};
Add static in cmd-* and fix a few other nits.
2016-10-10 21:51:39 +00:00
static enum cmd_retval
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
{
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
struct args *args = self->args;
struct environ *env;
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
const char *name, *value, *target;
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
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
name = args->argv[0];
if (*name == '\0') {
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "empty variable name");
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
return (CMD_RETURN_ERROR);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
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
if (strchr(name, '=') != NULL) {
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "variable name contains =");
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
return (CMD_RETURN_ERROR);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
fix an off-by-one ok nicm@
2012-10-31 19:11:18 +00:00
if (args->argc < 2)
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
value = NULL;
else
value = args->argv[1];
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
if (args_has(self->args, 'g'))
Like options, move the environ struct into environ.c.
2015-10-28 09:51:55 +00:00
env = global_environ;
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
else {
Get rid of the extra layer of flags and cmd_prepare() and just store the CMD_FIND_* flags in the cmd_entry and call it for the command. Commands with special requirements call it themselves and update the target for hooks to use.
2017-04-22 10:22:39 +00:00
if (item->target.s == NULL) {
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
target = args_get(args, 't');
if (target != NULL)
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "no such session: %s", target);
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
else
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "no current session");
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
return (CMD_RETURN_ERROR);
}
Get rid of the extra layer of flags and cmd_prepare() and just store the CMD_FIND_* flags in the cmd_entry and call it for the command. Commands with special requirements call it themselves and update the target for hooks to use.
2017-04-22 10:22:39 +00:00
env = item->target.s->environ;
show-* and set-* need to handle a missing target.
2016-03-03 14:15:22 +00:00
}
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
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
if (args_has(self->args, 'u')) {
if (value != NULL) {
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "can't specify a value with -u");
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
return (CMD_RETURN_ERROR);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
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
environ_unset(env, name);
} else if (args_has(self->args, 'r')) {
if (value != NULL) {
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "can't specify a value with -r");
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
return (CMD_RETURN_ERROR);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
Make environ_set va_args and use it to tidy up some calls. Also add a missing word in manpage (from jmc).
2015-11-24 23:46:15 +00:00
environ_clear(env, name);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
} else {
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
if (value == NULL) {
Mass rename struct cmd_q to struct cmdq_item and related.
2016-10-16 19:04:05 +00:00
cmdq_error(item, "no value specified");
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
return (CMD_RETURN_ERROR);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
Make environ_set va_args and use it to tidy up some calls. Also add a missing word in manpage (from jmc).
2015-11-24 23:46:15 +00:00
environ_set(env, name, "%s", value);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
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
return (CMD_RETURN_NORMAL);
Infrastructure and commands to manage the environment for processes started 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.
2009-08-08 21:52:43 +00:00
}
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