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.
This commit is contained in:
Nicholas Marriott
2009-08-08 21:52:43 +00:00
parent e985629440
commit 6491274f60
19 changed files with 549 additions and 63 deletions

View File

@ -59,21 +59,11 @@ int
cmd_string_parse(const char *s, struct cmd_list **cmdlist, char **cause)
{
size_t p;
int ch, argc, rval, have_arg;
char **argv, *buf, *t, *u;
int ch, i, argc, rval, have_arg;
char **argv, *buf, *t;
const char *whitespace, *equals;
size_t len;
if ((t = strchr(s, ' ')) == NULL && (t = strchr(s, '\t')) == NULL)
t = strchr(s, '\0');
if ((u = strchr(s, '=')) != NULL && u < t) {
if (putenv(xstrdup(s)) != 0) {
xasprintf(cause, "assignment failed: %s", s);
return (-1);
}
*cmdlist = NULL;
return (0);
}
argv = NULL;
argc = 0;
@ -147,6 +137,18 @@ cmd_string_parse(const char *s, struct cmd_list **cmdlist, char **cause)
if (argc == 0)
goto out;
for (i = 0; i < argc; i++) {
equals = strchr(argv[i], '=');
whitespace = argv[i] + strcspn(argv[i], " \t");
if (equals == NULL || equals > whitespace)
break;
environ_put(&global_environ, argv[i]);
memmove(&argv[i], &argv[i + 1], argc - i - 1);
argc--;
}
if (argc == 0)
goto out;
*cmdlist = cmd_list_parse(argc, argv, cause);
if (*cmdlist == NULL)
goto out;