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Refactor ostree_sysroot_query_bootloader

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This is more regular, so will make it easier to add more bootloader types
in the future.
This commit is contained in:
William Manley 2020-07-14 12:53:17 +01:00
parent 31acd2ef99
commit a8dce46b5f
1 changed files with 47 additions and 49 deletions
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96
src/libostree/ostree-sysroot.c
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@ -1325,6 +1325,31 @@ ostree_sysroot_repo (OstreeSysroot *self)
return self->repo;
}
static OstreeBootloader*
_ostree_sysroot_new_bootloader_by_type (
OstreeSysroot *sysroot,
OstreeCfgSysrootBootloaderOpt bl_type)
{
switch (bl_type)
{
case CFG_SYSROOT_BOOTLOADER_OPT_NONE:
/* No bootloader specified; do not query bootloaders to run. */
return NULL;
case CFG_SYSROOT_BOOTLOADER_OPT_GRUB2:
return (OstreeBootloader*) _ostree_bootloader_grub2_new (sysroot);
case CFG_SYSROOT_BOOTLOADER_OPT_SYSLINUX:
return (OstreeBootloader*) _ostree_bootloader_syslinux_new (sysroot);
case CFG_SYSROOT_BOOTLOADER_OPT_UBOOT:
return (OstreeBootloader*) _ostree_bootloader_uboot_new (sysroot);
case CFG_SYSROOT_BOOTLOADER_OPT_ZIPL:
/* We never consider zipl as active by default, so it can only be created
* if it's explicitly requested in the config */
return (OstreeBootloader*) _ostree_bootloader_zipl_new (sysroot);
default:
g_assert_not_reached ();
}
}
/**
* ostree_sysroot_query_bootloader:
* @sysroot: Sysroot
@ -1346,58 +1371,31 @@ _ostree_sysroot_query_bootloader (OstreeSysroot *sysroot,
CFG_SYSROOT_BOOTLOADER_OPTS_STR[bootloader_config]);
g_autoptr(OstreeBootloader) ret_loader = NULL;
switch (repo->bootloader)
if (bootloader_config == CFG_SYSROOT_BOOTLOADER_OPT_AUTO)
{
case CFG_SYSROOT_BOOTLOADER_OPT_NONE:
/* No bootloader specified; do not query bootloaders to run. */
ret_loader = NULL;
break;
case CFG_SYSROOT_BOOTLOADER_OPT_GRUB2:
ret_loader = (OstreeBootloader*) _ostree_bootloader_grub2_new (sysroot);
break;
case CFG_SYSROOT_BOOTLOADER_OPT_SYSLINUX:
ret_loader = (OstreeBootloader*) _ostree_bootloader_syslinux_new (sysroot);
break;
case CFG_SYSROOT_BOOTLOADER_OPT_UBOOT:
ret_loader = (OstreeBootloader*) _ostree_bootloader_uboot_new (sysroot);
break;
case CFG_SYSROOT_BOOTLOADER_OPT_ZIPL:
/* We never consider zipl as active by default, so it can only be created
* if it's explicitly requested in the config */
ret_loader = (OstreeBootloader*) _ostree_bootloader_zipl_new (sysroot);
break;
case CFG_SYSROOT_BOOTLOADER_OPT_AUTO:
{
gboolean is_active;
ret_loader = (OstreeBootloader*)_ostree_bootloader_syslinux_new (sysroot);
if (!_ostree_bootloader_query (ret_loader, &is_active,
cancellable, error))
return FALSE;
if (!is_active)
{
g_object_unref (ret_loader);
ret_loader = (OstreeBootloader*)_ostree_bootloader_grub2_new (sysroot);
if (!_ostree_bootloader_query (ret_loader, &is_active,
cancellable, error))
return FALSE;
}
if (!is_active)
{
g_object_unref (ret_loader);
ret_loader = (OstreeBootloader*)_ostree_bootloader_uboot_new (sysroot);
if (!_ostree_bootloader_query (ret_loader, &is_active, cancellable, error))
return FALSE;
}
if (!is_active)
g_clear_object (&ret_loader);
break;
}
default:
g_assert_not_reached ();
OstreeCfgSysrootBootloaderOpt probe[] = {
CFG_SYSROOT_BOOTLOADER_OPT_SYSLINUX,
CFG_SYSROOT_BOOTLOADER_OPT_GRUB2,
CFG_SYSROOT_BOOTLOADER_OPT_UBOOT,
};
for (int i = 0; i < G_N_ELEMENTS (probe); i++)
{
g_autoptr(OstreeBootloader) bl = _ostree_sysroot_new_bootloader_by_type (
sysroot, probe[i]);
gboolean is_active = FALSE;
if (!_ostree_bootloader_query (bl, &is_active, cancellable, error))
return FALSE;
if (is_active)
{
ret_loader = g_steal_pointer (&bl);
break;
}
}
}
else
ret_loader = _ostree_sysroot_new_bootloader_by_type (sysroot, bootloader_config);
ot_transfer_out_value(out_bootloader, &ret_loader);
ot_transfer_out_value (out_bootloader, &ret_loader)
return TRUE;
}