Modules: fixed process.env object.

Previously, it ignored changes to environment variables introduced
with "env" directive.

nginx/ngx_js.c

@@ -3832,6 +3832,10 @@ ngx_js_init_conf_vm(ngx_conf_t *cf, ngx_js_loc_conf_t *conf,
     ngx_pool_cleanup_t   *cln;
     ngx_js_named_path_t  *import;
 
+    if (ngx_set_environment(cf->cycle, NULL) == NULL) {
+        return NGX_ERROR;
+    }
+
     if (conf->preload_objects != NGX_CONF_UNSET_PTR) {
        if (ngx_js_init_preload_vm(cf, (ngx_js_loc_conf_t *)conf) != NGX_OK) {
            return NGX_ERROR;

nginx/t/js_process.t

@@ -0,0 +1,84 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for http njs module, process object.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+use Socket qw/ CRLF /;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/http/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+env FOO=bar;
+env BAR=baz;
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_import test.js;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location /argv {
+            js_content test.argv;
+        }
+
+        location /env {
+            js_content test.env;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('test.js', <<EOF);
+    function argv(r) {
+        var av = process.argv;
+        r.return(200,`\${Array.isArray(av)} \${av[0].indexOf('nginx') >= 0}`);
+    }
+
+    function env(r) {
+        var e = process.env[r.args.var];
+        r.return(200, e ? e : 'undefined');
+    }
+
+    export default { argv, env };
+
+EOF
+
+$t->try_run('no njs process object')->plan(4);
+
+###############################################################################
+
+like(http_get('/argv'), qr/true true/, 'argv');
+like(http_get('/env?var=FOO'), qr/bar/, 'env FOO');
+like(http_get('/env?var=BAR'), qr/baz/, 'env BAR');
+like(http_get('/env?var=HOME'), qr/undefined/, 'env HOME');
+
+###############################################################################

nginx/t/stream_js_process.t

@@ -0,0 +1,108 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for stream njs module, process object.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+use Test::Nginx::Stream qw/ stream /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+my $t = Test::Nginx->new()->has(qw/stream stream_return/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+env FOO=bar;
+env BAR=baz;
+
+stream {
+    %%TEST_GLOBALS_STREAM%%
+
+    js_import test.js;
+
+    js_set $env_foo            test.env_foo;
+    js_set $env_bar            test.env_bar;
+    js_set $env_home           test.env_home;
+    js_set $argv               test.argv;
+
+    server {
+        listen  127.0.0.1:8081;
+        return  $env_foo;
+    }
+
+    server {
+        listen  127.0.0.1:8082;
+        return  $env_bar;
+    }
+
+    server {
+        listen 127.0.0.1:8083;
+        return $env_home;
+    }
+
+    server {
+        listen 127.0.0.1:8084;
+        return $argv;
+    }
+}
+
+EOF
+
+$t->write_file('test.js', <<EOF);
+    function env(s, v) {
+        var e = process.env[v];
+        return e ? e : 'undefined';
+    }
+
+    function env_foo(s) {
+        return env(s, 'FOO');
+    }
+
+    function env_bar(s) {
+        return env(s, 'BAR');
+    }
+
+    function env_home(s) {
+        return env(s, 'HOME');
+    }
+
+    function argv(r) {
+        var av = process.argv;
+        return `\${Array.isArray(av)} \${av[0].indexOf('nginx') >= 0}`;
+    }
+
+    export default { env_foo, env_bar, env_home, argv };
+
+EOF
+
+$t->try_run('no njs stream session object')->plan(4);
+
+###############################################################################
+
+is(stream('127.0.0.1:' . port(8081))->read(), 'bar', 'env.FOO');
+is(stream('127.0.0.1:' . port(8082))->read(), 'baz', 'env.BAR');
+is(stream('127.0.0.1:' . port(8083))->read(), 'undefined', 'env HOME');
+is(stream('127.0.0.1:' . port(8084))->read(), 'true true', 'argv');
+
+###############################################################################