Added a simple module map

regtest/basic/rt-make-moduleMap/Makefile

@@ -0,0 +1 @@
+include ../../scripts/test.make

regtest/basic/rt-make-moduleMap/config

@@ -0,0 +1 @@
+type=make

regtest/basic/rt-make-moduleMap/main.cpp

@@ -0,0 +1,19 @@
+#include "plumed/core/ModuleMap.h"
+#include "plumed/core/ActionRegister.h"
+
+#include <fstream>
+
+
+int main(){
+  const auto actionList=PLMD::actionRegister().getActionNames();
+  //just checking that all the default-registered actions are in the module map;
+  //output should be empty, the diff will be clear
+  //this test may break in case of adding a new LOAD mechanism on startup
+  std::ofstream file("output");
+  for (const auto & name: actionList){
+    if(PLMD::getModuleMap().count(name)==0){
+      file << name << "is not in the ModuleMap\n";
+    }
+  }
+  return 0;
+}

src/core/Makefile

@@ -3,7 +3,7 @@ USE=config tools lepton
 # generic makefile
 include ../maketools/make.module
 
-CLEANLIST:=$(CLEANLIST) PlumedMainMap.inc PlumedMainEnum.inc GREXMap.inc GREXEnum.inc CLToolMainMap.inc CLToolMainEnum.inc
+CLEANLIST:=$(CLEANLIST) PlumedMainMap.inc PlumedMainEnum.inc GREXMap.inc GREXEnum.inc CLToolMainMap.inc CLToolMainEnum.inc ModuleMap.inc
 
 PlumedMain.o: PlumedMainMap.inc PlumedMainEnum.inc
 
@@ -29,3 +29,7 @@ CLToolMainMap.inc: CLToolMain.cpp
 CLToolMainEnum.inc: CLToolMain.cpp
 	../maketools/makecmd enum < CLToolMain.cpp > CLToolMainEnum.inc
 
+ModuleMap.o: ModuleMap.inc
+
+ModuleMap.inc: ../*/*.cpp
+	../maketools/makeModuleMap > $@

src/core/ModuleMap.cpp

@@ -0,0 +1,31 @@
+/* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+   Copyright (c) 2024-2024 The plumed team
+   (see the PEOPLE file at the root of the distribution for a list of names)
+
+   See http://www.plumed.org for more information.
+
+   This file is part of plumed, version 2.
+
+   plumed is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   plumed is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with plumed.  If not, see <http://www.gnu.org/licenses/>.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
+#include "ModuleMap.h"
+
+namespace PLMD {
+const std::map<std::string,std::string> & getModuleMap() {
+  static const std::map<std::string,std::string> actionToModule= {
+#include "ModuleMap.inc"
+  };
+  return actionToModule;
+}
+} // namespace PLMD

src/core/ModuleMap.h

@@ -0,0 +1,30 @@
+/* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+   Copyright (c) 2024-2024 The plumed team
+   (see the PEOPLE file at the root of the distribution for a list of names)
+
+   See http://www.plumed.org for more information.
+
+   This file is part of plumed, version 2.
+
+   plumed is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   plumed is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with plumed.  If not, see <http://www.gnu.org/licenses/>.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
+#ifndef __PLUMED_core_ModuleMap_h
+#define __PLUMED_core_ModuleMap_h
+#include <map>
+#include <string>
+namespace PLMD {
+const std::map<std::string,std::string> & getModuleMap();
+} // namespace PLMD
+
+#endif //__PLUMED_core_ModuleMap_h

src/maketools/makeModuleMap

@@ -0,0 +1,59 @@
+#! /usr/bin/env bash
+# shellcheck disable=SC2059
+
+problems=""
+toPrint='  {"%s", "%s"}'
+#regex are scary, here's a link with the flow of the regex
+# https://regexper.com/#PLUMED_REGISTER_ACTION%5Cs*%5C%28%5Cs*%5B0-9a-zA-Z_%5D%2B%5Cs*%2C%5Cs*%22%28%5B0-9a-zA-Z_%5D%2B%29%22%5Cs*%5C%29
+regex='PLUMED_REGISTER_ACTION\s*\(\s*[0-9a-zA-Z_]+\s*,\s*"([0-9a-zA-Z_]+)"\s*\)'
+
+for module in ../*/module.type; do
+  moduledir=${module%%/module.type}
+  modulename=${moduledir##*/}
+  {
+    for file in "$moduledir"/*.cpp; do
+      if grep -q PLUMED_REGISTER_ACTION "${file}"; then
+        # gawk and perl implementation in case your bash dialect do not process correctly the regex
+        # actionName=$(gawk 'match($0,/PLUMED_REGISTER_ACTION\s*\(\s*[0-9_a-zA-Z]+\s*,\s*"([0-9a-zA-Z_]+)"\s*\)/, captured){print captured[1]}' "${file}" )
+        # # in case gawk does not work, here's the perl implementation:
+        # # actionName=$(perl -ln -e'print $1 if /PLUMED_REGISTER_ACTION\s*\(\s*[0-9_a-zA-Z]+\s*,\s*"([0-9a-zA-Z_]+)"\s*\)/'  "${file}")
+        # ng=$(grep -c PLUMED_REGISTER_ACTION "${file}")
+        # nawk=$(
+        #           cat <<EOF | wc -l
+        # $b
+        # EOF
+        #         )
+        #         if [[ $ng -ne $nawk ]]; then
+        #           problems="$problems ${modulename}:${file}"
+        #         fi
+        # for a in $actionName; do
+        #   printf  "$toPrint" "$a" "$modulename"
+        #   # echo -ne "$init  {\"$a\", \"$modulename\"}"
+        #   toPrint=',\n  {"%s", "%s"}'
+        # done
+        # fi
+
+        grep PLUMED_REGISTER_ACTION "${file}" | while read -r action; do
+          # echo $action
+          if [[ $action =~ $regex ]]; then
+            actionName=${BASH_REMATCH[1]}
+            printf "$toPrint" "$actionName" "$modulename"
+
+            toPrint=',\n  {"%s", "%s"}'
+          fi
+        done
+        #also here becasue while spawns a subshell and toPrint do not get updated
+        toPrint=',\n  {"%s", "%s"}'
+      fi
+    done
+  }
+
+done
+echo -e '\n'
+if [[ -n $problems ]]; then
+  echo >&2 some problems in the following:
+  for p in $problems; do
+    echo >&2 $p
+  done
+  exit 1
+fi