From bbe8cbd13c40a1309e0d7724319c5487a5df0879 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 21 Jun 2022 10:04:07 +0200
Subject: Add --trace-{match,execute} options

These options can be used to understand which dependency chain causes matching
or execution of a particular target.
---
 build2/b.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'build2/b.cxx')

diff --git a/build2/b.cxx b/build2/b.cxx
index 470aade..f666b86 100644
--- a/build2/b.cxx
+++ b/build2/b.cxx
@@ -436,6 +436,12 @@ main (int argc, char* argv[])
                                ops.dry_run (),
                                !ops.serial_stop () /* keep_going */,
                                cmdl.cmd_vars));
+
+      if (ops.trace_match_specified ())
+        pctx->trace_match = &ops.trace_match ();
+
+      if (ops.trace_execute_specified ())
+        pctx->trace_execute = &ops.trace_execute ();
     };
 
     new_context ();
-- 
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