lib/sysroot-deploy: Write to journal when finalizing

Write to the journal when starting to finalize a staged deployment.
Combined with the "Transaction completed" message we already emit, this
makes it easy later on to determine whether the operation was successful
by inspecting the journal. This will be used by `rpm-ostree status`.

Closes: #1750
Approved by: cgwalters

diff --git a/src/libostree/ostree-sysroot-deploy.c b/src/libostree/ostree-sysroot-deploy.c
index 246f111405500bac0e9260ec8c6b3526e1414cf9..b424d5e9bbfe83d5c2857e9fdc785e340145123c 100644 (file)
--- a/src/libostree/ostree-sysroot-deploy.c
+++ b/src/libostree/ostree-sysroot-deploy.c
@@ -49,9 +49,10 @@
 #include "libglnx.h"
 
 #ifdef HAVE_LIBSYSTEMD
-#define OSTREE_VARRELABEL_ID          SD_ID128_MAKE(da,67,9b,08,ac,d3,45,04,b7,89,d9,6f,81,8e,a7,81)
-#define OSTREE_CONFIGMERGE_ID         SD_ID128_MAKE(d3,86,3b,ae,c1,3e,44,49,ab,03,84,68,4a,8a,f3,a7)
-#define OSTREE_DEPLOYMENT_COMPLETE_ID SD_ID128_MAKE(dd,44,0e,3e,54,90,83,b6,3d,0e,fc,7d,c1,52,55,f1)
+#define OSTREE_VARRELABEL_ID            SD_ID128_MAKE(da,67,9b,08,ac,d3,45,04,b7,89,d9,6f,81,8e,a7,81)
+#define OSTREE_CONFIGMERGE_ID           SD_ID128_MAKE(d3,86,3b,ae,c1,3e,44,49,ab,03,84,68,4a,8a,f3,a7)
+#define OSTREE_DEPLOYMENT_COMPLETE_ID   SD_ID128_MAKE(dd,44,0e,3e,54,90,83,b6,3d,0e,fc,7d,c1,52,55,f1)
+#define OSTREE_DEPLOYMENT_FINALIZING_ID SD_ID128_MAKE(e8,64,6c,d6,3d,ff,46,25,b7,79,09,a8,e7,a4,09,94)
 #endif
 
 /*
@@ -2862,6 +2863,21 @@ _ostree_sysroot_finalize_staged (OstreeSysroot *self,
   if (!self->staged_deployment)
     return TRUE;
 
+  /* Notice we send this *after* the trivial `return TRUE` above; this msg implies we've
+   * committed to finalizing the deployment. */
+#ifdef HAVE_LIBSYSTEMD
+    sd_journal_send ("MESSAGE_ID=" SD_ID128_FORMAT_STR,
+                     SD_ID128_FORMAT_VAL(OSTREE_DEPLOYMENT_FINALIZING_ID),
+                     "MESSAGE=Finalizing staged deployment",
+                     "OSTREE_OSNAME=%s",
+                     ostree_deployment_get_osname (self->staged_deployment),
+                     "OSTREE_CHECKSUM=%s",
+                     ostree_deployment_get_csum (self->staged_deployment),
+                     "OSTREE_DEPLOYSERIAL=%u",
+                     ostree_deployment_get_deployserial (self->staged_deployment),
+                     NULL);
+#endif
+
   g_assert (self->staged_deployment_data);
 
   g_autoptr(OstreeDeployment) merge_deployment = NULL;