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implement Envcmd;
#
# Copyright © 2000 Vita Nuova Limited. All rights reserved.
#
include "sys.m";
sys: Sys;
include "draw.m";
include "env.m";
include "readdir.m";
Envcmd: module
{
init: fn(nil: ref Draw->Context, argv: list of string);
};
init(nil: ref Draw->Context, argv: list of string)
{
sys = load Sys Sys->PATH;
stdout := sys->fildes(1);
if (tl argv != nil) {
sys->fprint(stderr(), "Usage: env\n");
raise "fail:usage";
}
env := load Env Env->PATH;
if(env == nil)
error(sys->sprint("can't load %s: %r", Env->PATH));
readdir := load Readdir Readdir->PATH;
if(readdir == nil)
error(sys->sprint("can't load %s: %r", Readdir->PATH));
(a, nil) := readdir->init("/env", Readdir->NONE | Readdir->COMPACT | Readdir->DESCENDING);
for(i := 0; i < len a; i++){
s := a[i].name+"="+env->getenv(a[i].name)+"\n";
b := array of byte s;
sys->write(stdout, b, len b);
}
}
error(s: string)
{
sys->fprint(stderr(), "env: %s\n", s);
raise "fail:error";
}
stderr(): ref Sys->FD
{
return sys->fildes(2);
}
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