1 files changed, 27 insertions, 5 deletions
diff --git a/Source/cmakemain.cxx b/Source/cmakemain.cxx
index b754b72..723932e 100644
--- a/Source/cmakemain.cxx
+++ b/Source/cmakemain.cxx
@@ -917,8 +917,11 @@ int do_workflow(int ac, char const* const* av)
   std::cerr << "This cmake does not support --workflow\n";
   return -1;
 #else
+  using WorkflowListPresets = cmake::WorkflowListPresets;
+  using WorkflowFresh = cmake::WorkflowFresh;
   std::string presetName;
-  bool listPresets = false;
+  auto listPresets = WorkflowListPresets::No;
+  auto fresh = WorkflowFresh::No;
 
   using CommandArgument =
     cmCommandLineArgument<bool(std::string const& value)>;
@@ -927,7 +930,15 @@ int do_workflow(int ac, char const* const* av)
     CommandArgument{ "--preset", CommandArgument::Values::One,
                      CommandArgument::setToValue(presetName) },
     CommandArgument{ "--list-presets", CommandArgument::Values::Zero,
-                     CommandArgument::setToTrue(listPresets) }
+                     [&listPresets](const std::string&) -> bool {
+                       listPresets = WorkflowListPresets::Yes;
+                       return true;
+                     } },
+    CommandArgument{ "--fresh", CommandArgument::Values::Zero,
+                     [&fresh](const std::string&) -> bool {
+                       fresh = WorkflowFresh::Yes;
+                       return true;
+                     } },
   };
 
   std::vector<std::string> inputArgs;
@@ -949,14 +960,25 @@ int do_workflow(int ac, char const* const* av)
     }
     if (!(matched && parsed)) {
       if (!matched) {
+        presetName.clear();
+        listPresets = WorkflowListPresets::No;
         std::cerr << "Unknown argument " << arg << std::endl;
       }
       break;
     }
   }
 
-  if (presetName.empty() && !listPresets) {
-    std::cerr << "TODO: Usage\n";
+  if (presetName.empty() && listPresets == WorkflowListPresets::No) {
+    /* clang-format off */
+    std::cerr <<
+      "Usage: cmake --workflow [options]\n"
+      "Options:\n"
+      "  --preset <preset> = Workflow preset to execute.\n"
+      "  --list-presets    = List available workflow presets.\n"
+      "  --fresh           = Configure a fresh build tree, removing any "
+                            "existing cache file.\n"
+      ;
+    /* clang-format on */
     return 1;
   }
 
@@ -969,7 +991,7 @@ int do_workflow(int ac, char const* const* av)
     cmakemainProgressCallback(msg, prog, &cm);
   });
 
-  return cm.Workflow(presetName, listPresets);
+  return cm.Workflow(presetName, listPresets, fresh);
 #endif
 }