From fb34688841668e6e4c939395c8387feabe8ddfdf Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Mon, 30 Nov 2020 22:42:40 +0300
Subject: Add support for config.test.runner

---
 libbuild2/test/init.cxx | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'libbuild2/test/init.cxx')

diff --git a/libbuild2/test/init.cxx b/libbuild2/test/init.cxx
index 47a73ba..dadbd20 100644
--- a/libbuild2/test/init.cxx
+++ b/libbuild2/test/init.cxx
@@ -62,6 +62,10 @@ namespace build2
         //
         vp.insert<string> ("config.test.timeout"),
 
+        // Test command runner path and options (see the manual for semantics).
+        //
+        vp.insert<strings> ("config.test.runner"),
+
         // The test variable is a name which can be a path (with the
         // true/false special values) or a target name.
         //
@@ -69,6 +73,12 @@ namespace build2
         vp.insert<strings> ("test.options"),
         vp.insert<strings> ("test.arguments"),
 
+        // Test command runner path and options extracted from
+        // config.test.runner.
+        //
+        vp.insert<process_path> ("test.runner.path"),
+        vp.insert<strings>      ("test.runner.options"),
+
         // Prerequisite-specific.
         //
         // test.stdin and test.stdout can be used to mark a prerequisite as a
@@ -223,6 +233,46 @@ namespace build2
           m.operation_timeout = parse_timeout (t, ot);
       }
 
+      // config.test.runner
+      //
+      {
+        value& pv (rs.assign (m.test_runner_path));
+        value& ov (rs.assign (m.test_runner_options));
+
+        if (lookup l = lookup_config (rs, m.config_test_runner))
+        {
+          const strings& args (cast<strings> (l));
+
+          // Extract the runner process path.
+          //
+          {
+            const string& s (args.empty () ? empty_string : args.front ());
+
+            path p;
+            try { p = path (s); } catch (const invalid_path&) {}
+
+            if (p.empty ())
+              fail << "invalid runner path '" << s << "' in "
+                   << m.config_test_runner;
+
+            pv = run_search (p, false /* init */);
+            m.runner_path = &pv.as<process_path> ();
+          }
+
+          // Extract the runner options.
+          //
+          {
+            ov = strings (++args.begin (), args.end ());
+            m.runner_options = &ov.as<strings> ();
+          }
+        }
+        else
+        {
+          pv = nullptr;
+          ov = nullptr;
+        }
+      }
+
       //@@ TODO: Need ability to specify extra diff options (e.g.,
       //   --strip-trailing-cr, now hardcoded).
       //
-- 
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