Removed Print.pm,

ported execution of post processing scripts into C++ (WIP, waits for
update of boost::system module on our build server)
Removed other mention of the "Controller".

xs/src/libslic3r/GCode.cpp

@@ -13,6 +13,7 @@
 #include <boost/algorithm/string.hpp>
 #include <boost/algorithm/string/find.hpp>
 #include <boost/foreach.hpp>
+#include <boost/filesystem.hpp>
 #include <boost/log/trivial.hpp>
 
 #include <boost/nowide/iostream.hpp>
@@ -418,14 +419,9 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
 {
     PROFILE_CLEAR();
 
-    if (print->is_step_done(psGCodeExport)) {
-        // Does the file exist? If so, we hope that it is still valid.
-        FILE *f = boost::nowide::fopen(path, "r");
-        if (f != nullptr) {
-            ::fclose(f);
-            return;
-        }
-    }
+    // Does the file exist? If so, we hope that it is still valid.
+    if (print->is_step_done(psGCodeExport) && boost::filesystem::exists(boost::filesystem::path(path)))
+        return;
 
 	print->set_started(psGCodeExport);
 

xs/src/libslic3r/GCode/PostProcessor.cpp

@@ -0,0 +1,55 @@
+#include "PostProcessor.hpp"
+
+namespace Slic3r {
+
+#ifdef WIN32
+
+//FIXME Ignore until we include boost::process
+void run_post_process_scripts(const std::string &path, const PrintConfig &config)
+{
+}
+
+#else
+
+#include <boost/process/system.hpp>
+
+void run_post_process_scripts(const std::string &path, const PrintConfig &config)
+{
+    if (config.post_process.values.empty())
+        return;
+    config.setenv_();
+    for (std::string script: config.post_process.values) {
+        // Ignore empty post processing script lines.
+        boost::trim(script);
+        if (script.empty())
+            continue;
+        BOOST_LOG_TRIVIAL(info) << "Executing script " << script << " on file " << path;
+        if (! boost::filesystem::exists(boost::filesystem::path(path)))
+            throw std::runtime_exception(std::string("The configured post-processing script does not exist: ") + path);
+#ifndef WIN32
+        file_status fs = boost::filesystem::status(path);
+        //FIXME test if executible by the effective UID / GID.
+        // throw std::runtime_exception(std::string("The configured post-processing script is not executable: check permissions. ") + path));
+#endif
+        int result = 0;
+#ifdef WIN32
+        if (boost::iends_with(file, ".gcode")) {
+            // The current process may be slic3r.exe or slic3r-console.exe.
+            // Find the path of the process:
+            wchar_t wpath_exe[_MAX_PATH + 1];
+            ::GetModuleFileNameW(nullptr, wpath_exe, _MAX_PATH);
+            boost::filesystem::path path_exe(wpath_exe);
+            // Replace it with the current perl interpreter.
+            result = boost::process::system((path_exe.parent_path() / "perl5.24.0.exe").string(), script, output_file);
+        } else
+#else
+        result = boost::process::system(script, output_file);
+#endif
+        if (result < 0)
+            BOOST_LOG_TRIVIAL(error) << "Script " << script << " on file " << path << " failed. Negative error code returned.";
+    }
+}
+
+#endif
+
+} // namespace Slic3r

xs/src/libslic3r/GCode/PostProcessor.hpp

@@ -0,0 +1,15 @@
+#ifndef slic3r_GCode_PostProcessor_hpp_
+#define slic3r_GCode_PostProcessor_hpp_
+
+#include <string>
+
+#include "../libslic3r.h"
+#include "../PrintConfig.hpp"
+
+namespace Slic3r {
+
+extern void run_post_process_scripts(const std::string &path, const PrintConfig &config);
+
+} // namespace Slic3r
+
+#endif /* slic3r_GCode_PostProcessor_hpp_ */

xs/src/libslic3r/Print.cpp

@@ -1331,8 +1331,15 @@ std::string Print::output_filepath(const std::string &path) const
     return path;
 }
 
-void Print::print_to_png(const std::string &dirpath)
+void Print::export_png(const std::string &dirpath)
 {
+    size_t idx = 0;
+    for (PrintObject *obj : m_objects) {
+        obj->slice();
+        this->set_status(int(floor(idx * 100. / m_objects.size() + 0.5)), "Slicing...");
+        ++ idx;
+    }
+    this->set_status(90, "Exporting zipped archive...");
     print_to<FilePrinterFormat::PNG>(*this,
         dirpath,
         float(m_config.bed_size_x.value),
@@ -1341,6 +1348,7 @@ void Print::print_to_png(const std::string &dirpath)
         int(m_config.pixel_height.value),
         float(m_config.exp_time.value),
         float(m_config.exp_time_first.value));
+    this->set_status(100, "Done.");
 }
 
 // Returns extruder this eec should be printed with, according to PrintRegion config

xs/src/libslic3r/Print.hpp

@@ -368,7 +368,7 @@ public:
     void                process();
     void                export_gcode(const std::string &path_template, GCodePreviewData *preview_data);
     // SLA export, temporary.
-    void                print_to_png(const std::string &dirpath);
+    void                export_png(const std::string &dirpath);
 
     // methods for handling state
     bool                is_step_done(PrintStep step) const { return m_state.is_done(step); }