fix GenerateDoc.mos

Belonging to [master]:
  - #2752

Author: hkiel

Examples/GenerateDoc.mos

@@ -41,8 +41,6 @@
 
 setDebugFlags("nogen") /* Don't generate dll/so-files when instantiating classes (performance) */;
 
-import shutil
-
 // rmSymlinks
 // (false) should we keep readable names (nice online, if the server handles symbolic links), or
 // (true) use the hashed names in the links (nice if you want a zipped version to work on Windows). This removes the readable names, keeping only the hashed and de-duped images.
@@ -81,10 +79,9 @@ py:=getInstallationDirectoryPath() + "/share/doc/omc/testmodels/generate_icons.p
 
 // adrpo: do not run the python stuff when running the testsuite
 if getEnvironmentVar("GenerateDocTest") == "YES" then
-  if not os.path.exists("Icons"):
-    os.mkdir("Icons")
+  system("mkdir -p Icons");
 else
-  commands:={"python "+py+" --quiet --output-dir Icons "+typeNameString(cl) for cl in reversed(getClassNames(builtin=false))};getErrorString();
+  commands:={"python "+py+" --quiet --output-dir Icons "+typeNameString(cl) for cl in getClassNames(builtin=false)};getErrorString();
   res:=system_parallel(commands);getErrorString();
   //system("rm -f *.json");getErrorString();
 end if;
@@ -459,11 +456,15 @@ echo(shouldEcho);
 system("rm -f tidy.links tidy.out tidy.err tidy.filtered");
 
 "Copying original HTML files to 'old-html-tmp'";
-oldtmp = "old-html-tmp"
+writeFile("copyold.py","#!/usr/bin/env python
+import shutil
+oldtmp = 'old-html-tmp'
 if not os.path.exists(oldtmp):
   os.mkdir(oldtmp)
 for file in glob.glob('*.html'):
   shutil.copy(file, oldtmp)
+");
+system("python copyold.py");
 
 "Tidy.py";
 system("python Tidy.py 2> tidy.err");