From 79fa7ca692f8b720503c2a0c5fe272ff5db594a4 Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Fri, 28 Feb 2014 03:48:23 -0500
Subject: [PATCH] Add /run/ostree-booted

The idea with this is that things like yum should be able to look for
it and determine whether or not they should assume that they can
change things on the system.

https://bugzilla.gnome.org/show_bug.cgi?id=725380
---
 src/switchroot/ostree-prepare-root.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/switchroot/ostree-prepare-root.c b/src/switchroot/ostree-prepare-root.c
index 7d6f8d71..b6b5f4a5 100644
--- a/src/switchroot/ostree-prepare-root.c
+++ b/src/switchroot/ostree-prepare-root.c
@@ -93,6 +93,23 @@ parse_ostree_cmdline (void)
   return ret;
 }
 
+/* This is an API for other projects to determine whether or not the
+ * currently running system is ostree-controlled.
+ */
+static void
+touch_run_ostree (void)
+{
+  int fd;
+  
+  fd = open ("/run/ostree-booted", O_CREAT | O_WRONLY | O_NOCTTY, 0640);
+  /* We ignore failures here in case /run isn't mounted...not much we
+   * can do about that, but we don't want to fail.
+   */
+  if (fd == -1)
+    return;
+  (void) close (fd);
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -189,6 +206,8 @@ main(int argc, char *argv[])
 	}
     }
 
+  touch_run_ostree ();
+
   /* This is a bit hacky - move our deployment to /sysroot, since
    * systemd's initrd-switch-root target hardcodes looking for it
    * there.