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sysroot: Sort returned boot loader configs

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I haven't done a full dig through the history, but it seems quite
possible right now we've been relying on inode enumeration
order for generating bootloader configuration.

Most of the time, newer inodes (i.e. later written files) will win.
But that's obviously not reliable.

Fix this by sorting the returned configuration internally.
This commit is contained in:
Colin Walters 2015-05-26 18:46:47 -04:00
parent ca0f02a54b
commit 3300ee6259
1 changed files with 34 additions and 13 deletions
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47
src/libostree/ostree-sysroot.c
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@ -361,6 +361,35 @@ _ostree_sysroot_read_current_subbootversion (OstreeSysroot *self,
return ret;
}
static gint
compare_boot_loader_configs (OstreeBootconfigParser *a,
OstreeBootconfigParser *b)
{
const char *a_version = ostree_bootconfig_parser_get (a, "version");
const char *b_version = ostree_bootconfig_parser_get (b, "version");
if (a_version && b_version)
{
int r = strverscmp (a_version, b_version);
/* Reverse */
return -r;
}
else if (a_version)
return -1;
else
return 1;
}
static int
compare_loader_configs_for_sorting (gconstpointer a_pp,
gconstpointer b_pp)
{
OstreeBootconfigParser *a = *((OstreeBootconfigParser**)a_pp);
OstreeBootconfigParser *b = *((OstreeBootconfigParser**)b_pp);
return compare_boot_loader_configs (a, b);
}
gboolean
_ostree_sysroot_read_boot_loader_configs (OstreeSysroot *self,
int bootversion,
@ -427,6 +456,9 @@ _ostree_sysroot_read_boot_loader_configs (OstreeSysroot *self,
}
}
/* Callers expect us to give them a sorted array */
g_ptr_array_sort (ret_loader_configs, compare_loader_configs_for_sorting);
done:
gs_transfer_out_value (out_loader_configs, &ret_loader_configs);
ret = TRUE;
@ -706,19 +738,8 @@ compare_deployments_by_boot_loader_version_reversed (gconstpointer a_pp,
OstreeDeployment *b = *((OstreeDeployment**)b_pp);
OstreeBootconfigParser *a_bootconfig = ostree_deployment_get_bootconfig (a);
OstreeBootconfigParser *b_bootconfig = ostree_deployment_get_bootconfig (b);
const char *a_version = ostree_bootconfig_parser_get (a_bootconfig, "version");
const char *b_version = ostree_bootconfig_parser_get (b_bootconfig, "version");
if (a_version && b_version)
{
int r = strverscmp (a_version, b_version);
/* Reverse */
return -r;
}
else if (a_version)
return -1;
else
return 1;
return compare_boot_loader_configs (a_bootconfig, b_bootconfig);
}
/**