Revert: Rework unit loading to take into account all aliases

Revert below patches due to increasing unit loading time (UnitsLoadFinishTimestamp - UnitsLoadStartTimestamp)

Refer: https://github.com/systemd/systemd/pull/13119/commits
 - test-unit-file: allow printing of information about specific units
 - pid1: drop unit caches only based on mtime
 - analyze: add "unit-files" to dump the unit fragment map
 - core: restore initialization of u->source_mtime
 - pid1: use a cache for all unit aliases
 - shared/unit-file: add a function to validate unit alias symlinks
 - TEST-15-DROPIN: add test for details of unit aliasing

Change-Id: I1bff89f5851544cda7522bd3ceb398499dac57d4

1 files changed, 0 insertions, 49 deletions

diff --git a/src/analyze/analyze.c b/src/analyze/analyze.c
index 991e61de7e..19c4ce9cd9 100644
--- a/src/analyze/analyze.c
+++ b/src/analyze/analyze.c
@@ -1546,53 +1546,6 @@ static int get_or_set_log_target(int argc, char *argv[], void *userdata) {
         return (argc == 1) ? get_log_target(argc, argv, userdata) : set_log_target(argc, argv, userdata);
 }
 
-static bool strv_fnmatch_strv_or_empty(char* const* patterns, char **strv, int flags) {
-        char **s;
-        STRV_FOREACH(s, strv)
-                if (strv_fnmatch_or_empty(patterns, *s, flags))
-                        return true;
-
-        return false;
-}
-
-static int do_unit_files(int argc, char *argv[], void *userdata) {
-        _cleanup_(lookup_paths_free) LookupPaths lp = {};
-        _cleanup_hashmap_free_ Hashmap *unit_ids = NULL;
-        _cleanup_hashmap_free_ Hashmap *unit_names = NULL;
-        char **patterns = strv_skip(argv, 1);
-        Iterator i;
-        const char *k, *dst;
-        char **v;
-        int r;
-
-        r = lookup_paths_init(&lp, arg_scope, 0, NULL);
-        if (r < 0)
-                return log_error_errno(r, "lookup_paths_init() failed: %m");
-
-        r = unit_file_build_name_map(&lp, NULL, &unit_ids, &unit_names, NULL);
-        if (r < 0)
-                return log_error_errno(r, "unit_file_build_name_map() failed: %m");
-
-        HASHMAP_FOREACH_KEY(dst, k, unit_ids, i) {
-                if (!strv_fnmatch_or_empty(patterns, k, FNM_NOESCAPE) &&
-                    !strv_fnmatch_or_empty(patterns, dst, FNM_NOESCAPE))
-                        continue;
-
-                printf("ids: %s → %s\n", k, dst);
-        }
-
-        HASHMAP_FOREACH_KEY(v, k, unit_names, i) {
-                if (!strv_fnmatch_or_empty(patterns, k, FNM_NOESCAPE) &&
-                    !strv_fnmatch_strv_or_empty(patterns, v, FNM_NOESCAPE))
-                        continue;
-
-                _cleanup_free_ char *j = strv_join(v, ", ");
-                printf("aliases: %s ← %s\n", k, j);
-        }
-
-        return 0;
-}
-
 static int dump_unit_paths(int argc, char *argv[], void *userdata) {
         _cleanup_(lookup_paths_free) LookupPaths paths = {};
         int r;
@@ -2250,7 +2203,6 @@ static int help(int argc, char *argv[], void *userdata) {
                "  dot [UNIT...]            Output dependency graph in %s format\n"
                "  dump                     Output state serialization of service manager\n"
                "  cat-config               Show configuration file and drop-ins\n"
-               "  unit-files               List files and symlinks for units\n"
                "  unit-paths               List load directories for units\n"
                "  exit-status [STATUS...]  List exit status definitions\n"
                "  syscall-filter [NAME...] Print list of syscalls in seccomp filter\n"
@@ -2486,7 +2438,6 @@ static int run(int argc, char *argv[]) {
                 { "service-watchdogs", VERB_ANY, 2,        0,            service_watchdogs      },
                 { "dump",              VERB_ANY, 1,        0,            dump                   },
                 { "cat-config",        2,        VERB_ANY, 0,            cat_config             },
-                { "unit-files",        VERB_ANY, VERB_ANY, 0,            do_unit_files          },
                 { "unit-paths",        1,        1,        0,            dump_unit_paths        },
                 { "exit-status",       VERB_ANY, VERB_ANY, 0,            dump_exit_status       },
                 { "syscall-filter",    VERB_ANY, VERB_ANY, 0,            dump_syscall_filters   },