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sysupdate: Add --offline mode

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This prevents sysupdate from going out to the network to enumerate
available instances. When combined with the list command, this lets us
query installed instances
This commit is contained in:
Adrian Vovk 2023-07-11 18:35:54 -04:00 committed by Tom Coldrick
parent 8db5e9b657
commit c0d6186227
No known key found for this signature in database
GPG Key ID: 504B7DF0B0C123BF
2 changed files with 30 additions and 8 deletions
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10
man/systemd-sysupdate.xml
View File

@ -295,6 +295,16 @@
<xi:include href="version-info.xml" xpointer="v251"/></listitem>
</varlistentry>
<varlistentry>
<term><option>--offline</option></term>
<listitem><para>Prevents fetching metadata from the network (i.e. <filename>SHA256SUMS</filename>).
This is most useful when used in combination with the <command>list</command> command, to query
locally installed versions.</para>
<xi:include href="version-info.xml" xpointer="v257"/></listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="no-pager" />
<xi:include href="standard-options.xml" xpointer="no-legend" />
<xi:include href="standard-options.xml" xpointer="json" />

28
src/sysupdate/sysupdate.c
View File

@ -48,6 +48,7 @@ static bool arg_reboot = false;
static char *arg_component = NULL;
static int arg_verify = -1;
static ImagePolicy *arg_image_policy = NULL;
static bool arg_offline = false;
STATIC_DESTRUCTOR_REGISTER(arg_definitions, freep);
STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
@ -356,11 +357,13 @@ static int context_discover_update_sets(Context *c) {
if (r < 0)
return r;
log_info("Determining available update sets%s", special_glyph(SPECIAL_GLYPH_ELLIPSIS));
if (!arg_offline) {
log_info("Determining available update sets%s", special_glyph(SPECIAL_GLYPH_ELLIPSIS));
r = context_discover_update_sets_by_flag(c, UPDATE_AVAILABLE);
if (r < 0)
return r;
r = context_discover_update_sets_by_flag(c, UPDATE_AVAILABLE);
if (r < 0)
return r;
}
typesafe_qsort(c->update_sets, c->n_update_sets, update_set_cmp);
return 0;
@ -727,15 +730,17 @@ static int context_make_online(Context **ret, const char *node) {
assert(ret);
/* Like context_make_offline(), but also communicates with the update source looking for new
* versions. */
* versions (as long as --offline is not specified on the command line). */
r = context_make_offline(&context, node);
if (r < 0)
return r;
r = context_load_available_instances(context);
if (r < 0)
return r;
if (!arg_offline) {
r = context_load_available_instances(context);
if (r < 0)
return r;
}
r = context_discover_update_sets(context);
if (r < 0)
@ -1248,6 +1253,7 @@ static int verb_help(int argc, char **argv, void *userdata) {
" --sync=BOOL Controls whether to sync data to disk\n"
" --verify=BOOL Force signature verification on or off\n"
" --reboot Reboot after updating to newer version\n"
" --offline Do not fetch metadata from the network\n"
" --no-pager Do not pipe output into a pager\n"
" --no-legend Do not show the headers and footers\n"
" --json=pretty|short|off\n"
@ -1277,6 +1283,7 @@ static int parse_argv(int argc, char *argv[]) {
ARG_IMAGE_POLICY,
ARG_REBOOT,
ARG_VERIFY,
ARG_OFFLINE,
};
static const struct option options[] = {
@ -1294,6 +1301,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "reboot", no_argument, NULL, ARG_REBOOT },
{ "component", required_argument, NULL, 'C' },
{ "verify", required_argument, NULL, ARG_VERIFY },
{ "offline", no_argument, NULL, ARG_OFFLINE },
{}
};
@ -1397,6 +1405,10 @@ static int parse_argv(int argc, char *argv[]) {
break;
}
case ARG_OFFLINE:
arg_offline = true;
break;
case '?':
return -EINVAL;