Add new commands to output the current, staged and previous deploymen…

…t for use in automation and scripting.

Right now, it's difficult to pin the current deployment without needing to look into the output of some other tooling (like rpm-ostree) to get the index of each deployment.  This index also is not consistent - the current deployment could be 0 when you first boot the system then 1 shortly after.
This change makes it easy to get the index of the current or future deployment so it can be piped into other commands (such as ostree admin pin).

Huge thanks to Eric for authoring this patch for me!

Co-authored-by: Eric Curtin [email protected]

Signed-off-by: Robert Sturla <[email protected]>

src/ostree/ot-admin-builtin-status.c

@@ -31,16 +31,25 @@
 static gboolean opt_verify;
 static gboolean opt_skip_signatures;
 static gboolean opt_is_default;
+static gboolean opt_booted_index;
+static gboolean opt_pending_index;
+static gboolean opt_rollback_index;
 
-static GOptionEntry options[]
-    = { { "verify", 'V', 0, G_OPTION_ARG_NONE, &opt_verify, "Print the commit verification status",
-          NULL },
-        { "skip-signatures", 'S', 0, G_OPTION_ARG_NONE, &opt_skip_signatures,
-          "Skip signatures in output", NULL },
-        { "is-default", 'D', 0, G_OPTION_ARG_NONE, &opt_is_default,
-          "Output \"default\" if booted into the default deployment, otherwise \"not-default\"",
-          NULL },
-        { NULL } };
+static GOptionEntry options[] = {
+  { "verify", 'V', 0, G_OPTION_ARG_NONE, &opt_verify, "Print the commit verification status",
+    NULL },
+  { "skip-signatures", 'S', 0, G_OPTION_ARG_NONE, &opt_skip_signatures, "Skip signatures in output",
+    NULL },
+  { "is-default", 'D', 0, G_OPTION_ARG_NONE, &opt_is_default,
+    "Output \"default\" if booted into the default deployment, otherwise \"not-default\"", NULL },
+  { "booted-index", 'b', 0, G_OPTION_ARG_NONE, &opt_booted_index,
+    "Print the index of the booted deployment", NULL },
+  { "pending-index", 'p', 0, G_OPTION_ARG_NONE, &opt_pending_index,
+    "Print the index of the pending deployment", NULL },
+  { "rollback-index", 'r', 0, G_OPTION_ARG_NONE, &opt_rollback_index,
+    "Print the index of the rollback deployment", NULL },
+  { NULL }
+};
 static gboolean
 deployment_print_status (OstreeSysroot *sysroot, OstreeRepo *repo, OstreeDeployment *deployment,
                          gboolean is_booted, gboolean is_pending, gboolean is_rollback,
@@ -218,6 +227,48 @@ ot_admin_builtin_status (int argc, char **argv, OstreeCommandInvocation *invocat
     {
       g_print ("No deployments.\n");
     }
+  else if (opt_booted_index)
+    {
+      for (guint i = 0; i < deployments->len; ++i)
+        {
+          OstreeDeployment *deployment = deployments->pdata[i];
+          if (deployment == booted_deployment)
+            {
+              g_print ("%d\n", i);
+              return TRUE;
+            }
+        }
+
+      return FALSE;
+    }
+  else if (opt_pending_index)
+    {
+      for (guint i = 0; i < deployments->len; ++i)
+        {
+          OstreeDeployment *deployment = deployments->pdata[i];
+          if (deployment == pending_deployment)
+            {
+              g_print ("%d\n", i);
+              return TRUE;
+            }
+        }
+
+      return FALSE;
+    }
+  else if (opt_rollback_index)
+    {
+      for (guint i = 0; i < deployments->len; ++i)
+        {
+          OstreeDeployment *deployment = deployments->pdata[i];
+          if (deployment == rollback_deployment)
+            {
+              g_print ("%d\n", i);
+              return TRUE;
+            }
+        }
+
+      return FALSE;
+    }
   else
     {
       for (guint i = 0; i < deployments->len; i++)