2 files changed, 16 insertions, 0 deletions

diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py
index 98c945edb5..b8429b2773 100644
--- a/bitbake/lib/bb/command.py
+++ b/bitbake/lib/bb/command.py
@@ -20,6 +20,7 @@ Commands are queued in a CommandQueue
 
 from collections import OrderedDict, defaultdict
 
+import io
 import bb.event
 import bb.cooker
 import bb.remotedata
@@ -478,6 +479,17 @@ class CommandsSync:
         d = command.remotedatastores[dsindex].varhistory
         return getattr(d, method)(*args, **kwargs)
 
+    def dataStoreConnectorVarHistCmdEmit(self, command, params):
+        dsindex = params[0]
+        var = params[1]
+        oval = params[2]
+        val = params[3]
+        d = command.remotedatastores[params[4]]
+
+        o = io.StringIO()
+        command.remotedatastores[dsindex].varhistory.emit(var, oval, val, o, d)
+        return o.getvalue()
+
     def dataStoreConnectorIncHistCmd(self, command, params):
         dsindex = params[0]
         method = params[1]
diff --git a/bitbake/lib/bb/tinfoil.py b/bitbake/lib/bb/tinfoil.py
index 28f1e5623f..8bec8cbaf6 100644
--- a/bitbake/lib/bb/tinfoil.py
+++ b/bitbake/lib/bb/tinfoil.py
@@ -53,6 +53,10 @@ class TinfoilDataStoreConnectorVarHistory:
     def remoteCommand(self, cmd, *args, **kwargs):
         return self.tinfoil.run_command('dataStoreConnectorVarHistCmd', self.dsindex, cmd, args, kwargs)
 
+    def emit(self, var, oval, val, o, d):
+        ret = self.tinfoil.run_command('dataStoreConnectorVarHistCmdEmit', self.dsindex, var, oval, val, d.dsindex)
+        o.write(ret)
+
     def __getattr__(self, name):
         if not hasattr(bb.data_smart.VariableHistory, name):
             raise AttributeError("VariableHistory has no such method %s" % name)