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analyze: add unit-paths verb

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2018-02-09 12:27:27 +01:00
parent 28b35ef23a
commit 31a5924ed8
2 changed files with 40 additions and 0 deletions
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17
man/systemd-analyze.xml
View file

@ -91,6 +91,11 @@
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="plain">dump</arg>
</cmdsynopsis>
<cmdsynopsis>
<command>systemd-analyze</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="plain">unit-paths</arg>
</cmdsynopsis>
<cmdsynopsis>
<command>systemd-analyze</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
@ -188,6 +193,18 @@
state. Its format is subject to change without notice and should
not be parsed by applications.</para>
<para><command>systemd-analyze unit-paths</command> outputs a list of all
directories from which unit files, <filename>.d</filename> overrides, and
<filename>.wants</filename>, <filename>.requires</filename> symlinks may be
loaded. Combine with <option>--user</option> to retrieve the list for the user
manager instance, and <option>--global</option> for the global configuration of
user manager instances. Note that this verb prints the list that is compiled into
<command>systemd-analyze</command> itself, and does not comunicate with the
running manager. Use
<programlisting>systemctl [--user] [--global] show -p UnitPath --value</programlisting>
to retrieve the actual list that the manager uses, with any empty directories
omitted.</para>
<para><command>systemd-analyze log-level</command>
prints the current log level of the <command>systemd</command> daemon.
If an optional argument <replaceable>LEVEL</replaceable> is provided, then the command changes the current log

23
src/analyze/analyze.c
View file

@ -1416,6 +1416,21 @@ 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 int dump_unit_paths(int argc, char *argv[], void *userdata) {
_cleanup_lookup_paths_free_ LookupPaths paths = {};
int r;
char **p;
r = lookup_paths_init(&paths, arg_scope, 0, NULL);
if (r < 0)
return log_error_errno(r, "lookup_paths_init() failed: %m");
STRV_FOREACH(p, paths.search_path)
puts(*p);
return 0;
}
#if HAVE_SECCOMP
static void dump_syscall_filter(const SyscallFilterSet *set) {
const char *syscall;
@ -1620,6 +1635,7 @@ static int help(int argc, char *argv[], void *userdata) {
" log-level [LEVEL] Get/set logging threshold for manager\n"
" log-target [TARGET] Get/set logging target for manager\n"
" dump Output state serialization of service manager\n"
" unit-paths List load directories for units\n"
" syscall-filter [NAME...] Print list of syscalls in seccomp filter\n"
" verify FILE... Check unit files for correctness\n"
" calendar SPEC... Validate repetitive calendar time events\n"
@ -1769,6 +1785,12 @@ static int parse_argv(int argc, char *argv[]) {
assert_not_reached("Unhandled option code.");
}
if (arg_scope == UNIT_FILE_GLOBAL &&
!STR_IN_SET(argv[optind] ?: "time", "dot", "unit-paths", "verify")) {
log_error("Option --global only makes sense with verbs dot, unit-paths, verify.");
return -EINVAL;
}
return 1; /* work to do */
}
@ -1789,6 +1811,7 @@ int main(int argc, char *argv[]) {
{ "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 },
{ "unit-paths", 1, 1, 0, dump_unit_paths },
{ "syscall-filter", VERB_ANY, VERB_ANY, 0, dump_syscall_filters },
{ "verify", 2, VERB_ANY, 0, do_verify },
{ "calendar", 2, VERB_ANY, 0, test_calendar },