Add library functions for accessing LAMMPS configuration

python/lammps.py

@@ -209,6 +209,7 @@ class lammps(object):
     self.c_bigint = get_ctypes_int(self.extract_setting("bigint"))
     self.c_tagint = get_ctypes_int(self.extract_setting("tagint"))
     self.c_imageint = get_ctypes_int(self.extract_setting("imageint"))
+    self._installed_packages = None
 
   # shut-down LAMMPS instance
 
@@ -562,13 +563,36 @@ class lammps(object):
                                  shrinkexceed)
 
   @property
-  def uses_exceptions(self):
+  def has_exceptions(self):
     """ Return whether the LAMMPS shared library was compiled with C++ exceptions handling enabled """
-    try:
-      if self.lib.lammps_has_error:
-        return True
-    except(AttributeError):
-      return False
+    return self.lib.lammps_config_has_exceptions() != 0
+
+  @property
+  def has_gzip_support(self):
+    return self.lib.lammps_config_has_gzip_support() != 0
+
+  @property
+  def has_png_support(self):
+    return self.lib.lammps_config_has_png_support() != 0
+
+  @property
+  def has_jpeg_support(self):
+    return self.lib.lammps_config_has_jpeg_support() != 0
+
+  @property
+  def has_ffmpeg_support(self):
+    return self.lib.lammps_config_has_ffmpeg_support() != 0
+
+  @property
+  def installed_packages(self):
+    if self._installed_packages is None:
+      self._installed_packages = []
+      npackages = self.lib.lammps_config_package_count()
+      sb = create_string_buffer(100)
+      for idx in range(npackages):
+        self.lib.lammps_config_package_name(idx, sb, 100)
+        self._installed_packages.append(sb.value.decode())
+    return self._installed_packages
 
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