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analyze: add "unit-files" to dump the unit fragment map 

I'm not convinced that this is useful enough to be included... But it is
certainly nice when debugging.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2019-07-08 17:33:25 +02:00
parent e8630e6952
commit e67cd21d7d
1 changed files with 50 additions and 0 deletions
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50
src/analyze/analyze.c
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@ -1545,6 +1545,53 @@ 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, &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;
@ -2164,6 +2211,7 @@ static int help(int argc, char *argv[], void *userdata) {
" log-target [TARGET] Get/set logging target for manager\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"
" syscall-filter [NAME...] Print list of syscalls in seccomp filter\n"
" condition CONDITION... Evaluate conditions and asserts\n"
@ -2365,8 +2413,10 @@ static int run(int argc, char *argv[]) {
{ "get-log-level", VERB_ANY, 1, 0, get_log_level },
{ "set-log-target", 2, 2, 0, set_log_target },
{ "get-log-target", VERB_ANY, 1, 0, get_log_target },
{ "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 },
{ "syscall-filter", VERB_ANY, VERB_ANY, 0, dump_syscall_filters },
{ "condition", 2, VERB_ANY, 0, do_condition },