Added sys.policy_release_id

Ticket: ENT-4664
Signed-off-by: Victor Moene <[email protected]>

Author: victormlg

cf-agent/cf-agent.c

@@ -267,6 +267,27 @@ static PromiseResult DefaultVarPromiseWrapper(EvalContext *ctx, const Promise *p
     return DefaultVarPromise(ctx, pp);
 }
 
+/*******************************************************************/
+
+static void SysPolicyReleaseId(EvalContext *ctx, Policy *policy)
+{
+    DataType type;
+    const char *entry_dirname = EvalContextVariableGetSpecial(ctx, SPECIAL_SCOPE_SYS, "policy_entry_dirname", &type);
+    if (entry_dirname == NULL)
+    {
+        return;
+    }
+    char *release_id;
+    xasprintf(&release_id, "%s/%s", entry_dirname, policy->release_id);
+    
+    EvalContextVariablePutSpecial(ctx, SPECIAL_SCOPE_SYS,
+                              "policy_release_id",
+                              release_id,
+                              CF_DATA_TYPE_STRING, "source=agent,attribute_name=Policy Release Id");
+    free(release_id);
+}
+
+
 /*******************************************************************/
 
 int main(int argc, char *argv[])
@@ -321,6 +342,7 @@ int main(int argc, char *argv[])
 
     BeginAudit();
 
+    SysPolicyReleaseId(ctx, policy);
     KeepPromises(ctx, policy, config);
 
     if (EvalAborted(ctx))