Added config.txt file

This is a textual file that contains all the configuration info.

It should be easier to parse from scripts.

src/config/.gitignore

@@ -3,3 +3,4 @@
 /ConfigInstall.cpp
 /install*
 /version.h
+/config.txt

src/config/Makefile

@@ -16,11 +16,15 @@ endif
 
 # default target
 all:
-	$(MAKE) PLUMED_FORCE=yes ConfigInstall.cpp Config.cpp version.h
+	$(MAKE) PLUMED_FORCE=yes ConfigInstall.cpp Config.cpp version.h config.txt
 	$(MAKE) Config.o ConfigInstall.o compile_options.sh
 
 obj: all
 
+config.txt: ../../Makefile.conf
+	@echo "Updating config.txt file"
+	@ ../maketools/update-config-txt.sh config.txt $(CPPFLAGS)
+
 version.h:
 	@echo "Updating version.h"
 	@ ../maketools/update-version.sh version.h
@@ -68,7 +72,7 @@ compile_options.sh:
 
 .PHONY: clean
 clean:
-	rm -f Config.cpp compile_options.sh Makefile_conf version.h
+	rm -f Config.cpp compile_options.sh Makefile_conf version.h config.txt
 	rm -fr deps 
 	rm -f Config.cpp ConfigInstall.cpp compile_options.sh install.conf
 	rm -f $(CLEANLIST)

src/lib/Makefile

@@ -162,6 +162,8 @@ endif
 	cp ../colvar/Template.cpp "$(DESTDIR)$(libdir)/$(program_name)/src/colvar/"
 # copy compile_options.sh file (we leave it in src/colvar/ for backward compatibility)
 	cp ../config/compile_options.sh "$(DESTDIR)$(libdir)/$(program_name)/src/config/compile_options.sh"
+# copy config.txt file (we leave it in src/colvar/ for backward compatibility)
+	cp ../config/config.txt "$(DESTDIR)$(libdir)/$(program_name)/src/config/config.txt"
 ifdef LD_RO
 	cp install/kernel.o "$(DESTDIR)$(libdir)/$(program_name)/obj/kernel.o"
 else

src/maketools/update-config-txt.sh

+#! /bin/bash
+
+# first argument is name of txt file to be updated
+file="$1"
+
+# version strings:
+version=$(
+echo "version short $(
+  if test -f ../../VERSION ; then
+    grep -v "#" ../../VERSION | sed  's/^\([0-9][0-9]*\.[0-9][0-9]*\).*/\1/'
+  else
+    echo "Unknown"
+  fi
+)"
+
+echo "version long $(
+  if test -f ../../VERSION ; then
+    grep -v "#" ../../VERSION
+  else
+    echo "Unknown"
+  fi
+)"
+
+echo "version git $(
+  if test -d ../../.git && hash git 2> /dev/null ; then
+# describe --tags gives a nice name
+# in case it does not work, fallback to normal hash (12 char long)
+    git describe --long --tags --dirty --always || git rev-parse  --short=12 HEAD
+  else
+    echo "Unknown"
+  fi
+)"
+
+)
+
+
+
+# first get full list of possible defines from configure.ac and .h
+list="$(
+  {
+  cat ../../configure.ac
+  grep -E "^#" ../*/*.h ../*/*.cpp
+  } |
+  grep -o "__PLUMED_HAS_[A-Z_]*" |
+  sed "s/__PLUMED_HAS_//" | sort | uniq | tr A-Z a-z)"
+
+# now get list of -D__PLUMED_HAS flags in Makefile.conf
+has="$(
+for flag
+do
+  case "$flag" in
+  (-D__PLUMED_HAS_*=0) ;;
+  (-D__PLUMED_HAS_*=*) echo ${flag#-D} | sed "s/=.*//" ;;
+  (-D__PLUMED_HAS_*)   echo ${flag#-D} ;;
+  (*) ;;
+  esac
+done | sed "s/__PLUMED_HAS_//" | sort | uniq | tr A-Z a-z
+)"
+
+# now get a list of other defines in Makefile.conf
+def="$(
+for flag
+do
+  case "$flag" in
+  (-D__PLUMED_HAS_*) ;;
+  (-D*) echo "define ${flag#-D}" ;;
+  (*) ;;
+  esac
+done | sort | uniq
+)"
+
+modules=$(
+cd ../
+for dir in *
+do
+  if test -f $dir/module.type
+  then
+    mtype="$(cat "$dir/module.type")"
+    is=""
+    case "$mtype" in
+    (always) is=on ;;
+    (default-on)
+      if test -f $dir.off ; then
+         is=off
+      else
+         is=on
+      fi  ;;
+    (default-off)
+      if test -f $dir.on ; then
+         is=on
+      else
+         is=off
+      fi  ;;
+    esac
+    echo "module $dir $is ($mtype)"
+  fi
+done
+)
+
+{
+echo "# version strings"
+echo "# syntax: version short/long/git number"
+echo "$version"
+echo
+echo "# list of 'has' options"
+echo "# syntax: has name on/of"
+echo "# if option xx is on then plumed has beeen compiled with -D__PLUMED_HAS_XX"
+{
+  for d in $has
+  do
+    echo "has $d on"
+  done
+  for u in $list
+  do
+    found=ko
+    for d in $has
+    do
+      if test "$d" = "$u" ; then
+        found=ok
+      fi
+    done
+    if test "$found" = ko ; then
+      echo "has $u off"
+    fi
+  done
+} | sort
+echo
+echo "# other defines"
+echo "# syntax: define name=value"
+echo "$def"
+echo
+echo "# list of modules"
+echo "# syntax: module name on/off (default-on/default-off/always)"
+echo "$modules" | sort
+
+}> $file~
+
+cmp -s $file~ $file || cp $file~ $file
+rm $file~
+
+
+