libreoffice: readd and fix the script to generate fetch list for LibreOffice. Migrating all of these to system packages would not work without patching the build system, I am afraid…

pkgs/applications/office/libreoffice/generate-libreoffice-srcs.sh

@@ -0,0 +1,54 @@
+#!/run/current-system/sw/bin/bash
+
+# Take the list of files from the main package, ooo.lst.in
+
+cat <<EOF
+[
+EOF
+
+write_entry(){
+  echo '{'
+  echo "  name = \"${name}\";"
+  echo "  md5 = \"${md5}\";"
+  echo "  brief = ${brief};"
+  echo '}'
+}
+
+while read line; do
+  case "$line" in
+    \#*)
+      echo Skipping comment: "$line" >&2;
+      ;;
+    *_MD5SUM\ :=*)
+      read tbline;
+      line=${line##* };
+      if [ "${tbline#*VERSION_MICRO}" != "$tbline" ]; then
+         verline=${tbline##* };
+         read tbline;
+         tbline=${tbline##* };
+         md5=$line
+         name=$tbline;
+         name="${name/\$([A-Z]*_VERSION_MICRO)/$verline}"
+      else
+         tbline=${tbline##* };
+         md5=$line
+         name=$tbline;
+      fi
+      brief=true;
+      write_entry;
+      ;;
+    *_TARBALL\ :=*)
+      line=${line##* };
+      line="${line#,}"
+      md5=${line:0:32};
+      name=${line:33};
+      brief=false;
+      write_entry;
+      ;;
+    *)
+      echo Skipping: "$line" >&2;
+      ;;
+  esac
+done
+
+echo ']'