lib/deploy: Factor out function to get deployment kargs

No functional change. Prep for next commit.

Closes: #1556
Approved by: cgwalters
This commit is contained in:
Jonathan Lebon 2018-04-24 12:50:11 -04:00 committed by Atomic Bot
parent 01ea9a12e4
commit ab8d694361

View File

@ -1896,6 +1896,17 @@ assign_bootserials (GPtrArray *deployments)
}
}
static char*
get_deployment_nonostree_kargs (OstreeDeployment *deployment)
{
/* pick up kernel arguments but filter out ostree= */
OstreeBootconfigParser *bootconfig = ostree_deployment_get_bootconfig (deployment);
const char *boot_options = ostree_bootconfig_parser_get (bootconfig, "options");
g_autoptr(OstreeKernelArgs) kargs = _ostree_kernel_args_from_string (boot_options);
_ostree_kernel_args_replace (kargs, "ostree");
return _ostree_kernel_args_to_string (kargs);
}
/* OSTree implements a special optimization where we want to avoid touching
* the bootloader configuration if the kernel layout hasn't changed. This is
* handled by the ostree= kernel argument referring to a "bootlink". But
@ -1909,29 +1920,18 @@ static gboolean
deployment_bootconfigs_equal (OstreeDeployment *a,
OstreeDeployment *b)
{
/* same kernel & initramfs? */
const char *a_bootcsum = ostree_deployment_get_bootcsum (a);
const char *b_bootcsum = ostree_deployment_get_bootcsum (b);
if (strcmp (a_bootcsum, b_bootcsum) != 0)
return FALSE;
{
/* We checksum the kernel arguments *except* ostree= */
OstreeBootconfigParser *a_bootconfig = ostree_deployment_get_bootconfig (a);
const char *a_boot_options = ostree_bootconfig_parser_get (a_bootconfig, "options");
g_autoptr(OstreeKernelArgs) a_kargs = _ostree_kernel_args_from_string (a_boot_options);
_ostree_kernel_args_replace (a_kargs, "ostree");
g_autofree char *a_boot_options_without_ostree = _ostree_kernel_args_to_string (a_kargs);
/* same kargs? */
g_autofree char *a_boot_options_without_ostree = get_deployment_nonostree_kargs (a);
g_autofree char *b_boot_options_without_ostree = get_deployment_nonostree_kargs (b);
if (strcmp (a_boot_options_without_ostree, b_boot_options_without_ostree) != 0)
return FALSE;
OstreeBootconfigParser *b_bootconfig = ostree_deployment_get_bootconfig (b);
const char *b_boot_options = ostree_bootconfig_parser_get (b_bootconfig, "options");
g_autoptr(OstreeKernelArgs) b_kargs = _ostree_kernel_args_from_string (b_boot_options);
_ostree_kernel_args_replace (b_kargs, "ostree");
g_autofree char *b_boot_options_without_ostree = _ostree_kernel_args_to_string (b_kargs);
if (strcmp (a_boot_options_without_ostree, b_boot_options_without_ostree) != 0)
return FALSE;
}
return TRUE;
}