src/test/test-path-lookup.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2014 Zbigniew Jędrzejewski-Szmek
   4 ***/
   5
   6 #include <stdlib.h>
   7 #include <sys/stat.h>
   8
   9 #include "log.h"
  10 #include "path-lookup.h"
  11 #include "rm-rf.h"
  12 #include "string-util.h"
  13 #include "strv.h"
  14
  15 static void test_paths(UnitFileScope scope) {
  16         char template[] = "/tmp/test-path-lookup.XXXXXXX";
  17
  18         _cleanup_(lookup_paths_free) LookupPaths lp_without_env = {};
  19         _cleanup_(lookup_paths_free) LookupPaths lp_with_env = {};
  20         char *systemd_unit_path;
  21
  22         assert_se(mkdtemp(template));
  23
  24         assert_se(unsetenv("SYSTEMD_UNIT_PATH") == 0);
  25         assert_se(lookup_paths_init(&lp_without_env, scope, 0, NULL) >= 0);
  26         assert_se(!strv_isempty(lp_without_env.search_path));
  27         assert_se(lookup_paths_reduce(&lp_without_env) >= 0);
  28
  29         systemd_unit_path = strjoina(template, "/systemd-unit-path");
  30         assert_se(setenv("SYSTEMD_UNIT_PATH", systemd_unit_path, 1) == 0);
  31         assert_se(lookup_paths_init(&lp_with_env, scope, 0, NULL) == 0);
  32         assert_se(strv_length(lp_with_env.search_path) == 1);
  33         assert_se(streq(lp_with_env.search_path[0], systemd_unit_path));
  34         assert_se(lookup_paths_reduce(&lp_with_env) >= 0);
  35         assert_se(strv_isempty(lp_with_env.search_path));
  36
  37         assert_se(rm_rf(template, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
  38 }
  39
  40 static void test_user_and_global_paths(void) {
  41         _cleanup_(lookup_paths_free) LookupPaths lp_global = {}, lp_user = {};
  42         char **u, **g, **p;
  43         unsigned k = 0;
  44
  45         assert_se(unsetenv("SYSTEMD_UNIT_PATH") == 0);
  46
  47         assert_se(lookup_paths_init(&lp_global, UNIT_FILE_GLOBAL, 0, NULL) == 0);
  48         assert_se(lookup_paths_init(&lp_user, UNIT_FILE_USER, 0, NULL) == 0);
  49         g = lp_global.search_path;
  50         u = lp_user.search_path;
  51
  52         /* Go over all entries in global search path, and verify
  53          * that they also exist in the user search path. Skip any
  54          * entries in user search path which don't exist in the global
  55          * one, but not vice versa. */
  56         log_info("/* %s */", __func__);
  57         STRV_FOREACH(p, g) {
  58                 while (u[k] && !streq(*p, u[k])) {
  59                         log_info("+ %s", u[k]);
  60                         k++;
  61                 }
  62                 log_info("  %s", *p);
  63                 assert(u[k]); /* If NULL, we didn't find a matching entry */
  64                 k++;
  65         }
  66         STRV_FOREACH(p, u + k)
  67                 log_info("+ %s", *p);
  68 }
  69
  70 static void print_generator_binary_paths(UnitFileScope scope) {
  71         _cleanup_strv_free_ char **paths;
  72         char **dir;
  73
  74         log_info("Generators dirs (%s):", scope == UNIT_FILE_SYSTEM ? "system" : "user");
  75
  76         paths = generator_binary_paths(scope);
  77         STRV_FOREACH(dir, paths)
  78                 log_info("        %s", *dir);
  79 }
  80
  81 int main(int argc, char **argv) {
  82         log_set_max_level(LOG_DEBUG);
  83         log_parse_environment();
  84         log_open();
  85
  86         test_paths(UNIT_FILE_SYSTEM);
  87         test_paths(UNIT_FILE_USER);
  88         test_paths(UNIT_FILE_GLOBAL);
  89
  90         test_user_and_global_paths();
  91
  92         print_generator_binary_paths(UNIT_FILE_SYSTEM);
  93         print_generator_binary_paths(UNIT_FILE_USER);
  94
  95         return EXIT_SUCCESS;
  96 }