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bectl(8): Implement the 'create a snapshot' variant of create

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This commit is contained in:
kevans 2018-08-16 18:26:43 +00:00
parent fd6f511be3
commit 2018f9b4db
1 changed files with 19 additions and 5 deletions
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24
sbin/bectl/bectl.c
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@ -182,15 +182,19 @@ bectl_cmd_activate(int argc, char *argv[])
static int
bectl_cmd_create(int argc, char *argv[])
{
char *bootenv, *snapname, *source;
char *atpos, *bootenv, *snapname, *source;
int err, opt;
bool recursive;
snapname = NULL;
while ((opt = getopt(argc, argv, "e:")) != -1) {
recursive = false;
while ((opt = getopt(argc, argv, "re:")) != -1) {
switch (opt) {
case 'e':
snapname = optarg;
break;
case 'r':
recursive = true;
default:
fprintf(stderr, "bectl create: unknown option '-%c'\n",
optopt);
@ -207,8 +211,14 @@ bectl_cmd_create(int argc, char *argv[])
}
bootenv = *argv;
if (snapname != NULL) {
if ((atpos = strchr(bootenv, '@')) != NULL) {
/*
* This is the "create a snapshot variant". No new boot
* environment is to be created here.
*/
*atpos++ = '\0';
err = be_snapshot(be, bootenv, atpos, recursive, NULL);
} else if (snapname != NULL) {
if (strchr(snapname, '@') != NULL)
err = be_create_from_existing_snap(be, bootenv,
snapname);
@ -232,7 +242,11 @@ bectl_cmd_create(int argc, char *argv[])
case BE_ERR_SUCCESS:
break;
default:
if (snapname == NULL)
if (atpos != NULL)
fprintf(stderr,
"failed to create a snapshot '%s' of '%s'\n",
atpos, bootenv);
else if (snapname == NULL)
fprintf(stderr,
"failed to create bootenv %s\n", bootenv);
else