add vunit_tb_name for modelsim, riviera and activehdl

docs/py/opts.rst

@@ -123,6 +123,7 @@ The following simulation options are known.
    using the ``vsim`` command.
    During script evaluation the ``vunit_tb_path`` variable is defined
    as the path of the folder containing the test bench.
+   Additionally, the ``vunit_tb_name`` variable is defined as the name of the test bench.
    Must be a list of strings.
 
 ``modelsim.init_files.before_run``
@@ -136,6 +137,7 @@ The following simulation options are known.
    For example this can be used to configure the waveform viewer.
    During script evaluation the ``vunit_tb_path`` variable is defined
    as the path of the folder containing the test bench.
+   Additionally, the ``vunit_tb_name`` variable is defined as the name of the test bench.
    Must be a string.
 
 ``rivierapro.vsim_flags``
@@ -153,6 +155,7 @@ The following simulation options are known.
    using the ``vsim`` command.
    During script evaluation the ``vunit_tb_path`` variable is defined
    as the path of the folder containing the test bench.
+   Additionally, the ``vunit_tb_name`` variable is defined as the name of the test bench.
    Must be a list of strings.
 
 ``rivierapro.init_files.before_run``
@@ -166,6 +169,7 @@ The following simulation options are known.
    For example this can be used to configure the waveform viewer.
    During script evaluation the ``vunit_tb_path`` variable is defined
    as the path of the folder containing the test bench.
+   Additionally, the ``vunit_tb_name`` variable is defined as the name of the test bench.
    Must be a string.
 
 ``activehdl.vsim_flags``
@@ -180,6 +184,9 @@ The following simulation options are known.
 ``activehdl.init_file.gui``
    A user defined TCL-file that is sourced after the design has been loaded in the GUI.
    For example this can be used to configure the waveform viewer.
+   During script evaluation the ``vunit_tb_path`` variable is defined
+   as the path of the folder containing the test bench.
+   Additionally, the ``vunit_tb_name`` variable is defined as the name of the test bench.
    Must be a string.
 
 ``ghdl.elab_flags``

vunit/sim_if/activehdl.py

@@ -458,7 +458,8 @@ def _create_batch_script(common_file_name, load_only=False):
 
     def _create_gui_script(self, common_file_name, config):
         """
-        Create the user facing script which loads common functions and prints a help message
+        Create the user facing script which loads common functions and prints a help message. 
+        Also defines the vunit_tb_path and the vunit_tb_name variable.
         """
 
         tcl = ""
@@ -473,6 +474,8 @@ def _create_gui_script(self, common_file_name, config):
 
         init_file = config.sim_options.get(self.name + ".init_file.gui", None)
         if init_file is not None:
+            tcl += f'set vunit_tb_name {config.design_unit_name}\n'
+            tcl += f'set vunit_tb_path {fix_path(str(Path(config.tb_path).resolve()))}\n'
             tcl += f'source "{fix_path(str(Path(init_file).resolve()))!s}"\n'
 
         tcl += "vunit_help\n"

vunit/sim_if/vsim_simulator_mixin.py

@@ -233,9 +233,12 @@ def _source_tcl_file(file_name, config, message):
         """
         Create TCL to source a file and catch errors
         Also defines the vunit_tb_path variable as the config.tb_path
+        and the vunit_tb_name variable as the config.design_unit_name
+
         """
         template = """
     set vunit_tb_path "%s"
+    set vunit_tb_name "%s"
     set file_name "%s"
     puts "Sourcing file ${file_name} from %s"
     if {[catch {source ${file_name}} error_msg]} {
@@ -246,6 +249,7 @@ def _source_tcl_file(file_name, config, message):
 """
         tcl = template % (
             fix_path(str(Path(config.tb_path).resolve())),
+            fix_path(str(Path(config.design_unit_name).resolve())),
             fix_path(str(Path(file_name).resolve())),
             message,
         )