run bbim_translations.py without bpy

src/blenderbim/Makefile

@@ -697,10 +697,8 @@ endif
 	cp -r blenderbim/libs/desktop dist/blenderbim/libs/
 
 	# generate translations module for BBIM build
-	# note that bpy is typically available only for current Blender python version
-	pip install bpy
 	git clone https://github.com/IfcOpenShell/blenderbim-translations.git dist/working
-	python blenderbim/scripts/bbim_translations.py -i "dist/working" -o "dist/blenderbim/translations.py"
+	python blenderbim/scripts/bbim_translations.py -i "dist/working" -o "dist/blenderbim"
 	rm -rf dist/working
 
 	# Remove dependencies also bundled with Blender

src/blenderbim/scripts/bbim_translations.py

@@ -1,12 +1,16 @@
-import bpy
+try:
-import addon_utils
+    import bpy
+    import bl_i18n_utils
+    import addon_utils
+    BPY_IS_LOADED = True
+except ModuleNotFoundError:
+    BPY_IS_LOADED = False
+
 import shutil
 import tempfile
 import importlib
 import os
-import sys
 import re
-import bl_i18n_utils
 from pathlib import Path
 from dataclasses import dataclass
 from typing import Dict
@@ -22,7 +26,6 @@ bl_info = {
     "category": "System",
 }
 
-context = bpy.context
 # NOTE: list of available languages in Blender can be retrieved
 # by the command below:
 # bpy.context.preferences.view.language = "test"
@@ -36,7 +39,7 @@ def is_addon_loaded(addon_name) -> bool:
 
 
 def get_branches_directory():
-    return Path(context.preferences.filepaths.i18n_branches_directory)
+    return Path(bpy.context.preferences.filepaths.i18n_branches_directory)
 
 
 def get_addon_directory() -> Path:
@@ -326,8 +329,8 @@ def dump_addon_messages(module_name, do_checks, settings):
 
     return pot
 
-
+if BPY_IS_LOADED:
-class SetupTranslationUI(bpy.types.Operator):
+    class SetupTranslationUI(bpy.types.Operator):
         bl_idname = "bim.setup_translation_ui"
         bl_label = "Setup Translation UI"
         bl_options = set()
@@ -415,7 +418,7 @@ class SetupTranslationUI(bpy.types.Operator):
             return {"FINISHED"}
 
 
-class ReloadPyTranslations(bpy.types.Operator):
+    class ReloadPyTranslations(bpy.types.Operator):
         bl_idname = "bim.reload_py_translations"
         bl_label = "Reload Py Translations"
         bl_description = "Parse strings from Blender objects of the addon to `translations.py`"
@@ -441,7 +444,7 @@ class ReloadPyTranslations(bpy.types.Operator):
             return {"FINISHED"}
 
 
-class ConvertTranslationsToPo(bpy.types.Operator):
+    class ConvertTranslationsToPo(bpy.types.Operator):
         bl_idname = "bim.convert_translations_to_po"
         bl_label = "Convert Translations To .po"
         bl_description = (
@@ -472,7 +475,7 @@ class ConvertTranslationsToPo(bpy.types.Operator):
             return {"FINISHED"}
 
 
-class UpdateTranslationsFromPo(bpy.types.Operator):
+    class UpdateTranslationsFromPo(bpy.types.Operator):
         bl_idname = "bim.update_translations_from_po"
         bl_label = "Update Translations From .po"
         bl_description = (
@@ -508,7 +511,7 @@ class UpdateTranslationsFromPo(bpy.types.Operator):
             return {"FINISHED"}
 
 
-class DisableEnableAddon(bpy.types.Operator):
+    class DisableEnableAddon(bpy.types.Operator):
         bl_idname = "bim.disable_enable_addon"
         bl_label = "Disable/Enable addon"
         bl_description = "Will enable addon if it's disabled, will disable it and restart Blender otherwise"
@@ -532,7 +535,7 @@ class DisableEnableAddon(bpy.types.Operator):
             return {"FINISHED"}
 
 
-class BBIM_PT_translations(bpy.types.Panel):
+    class BBIM_PT_translations(bpy.types.Panel):
         bl_label = "BlenderBIM Translations"
         bl_idname = "BBIM_PT_translations"
         bl_space_type = "PROPERTIES"
@@ -568,22 +571,22 @@ class BBIM_PT_translations(bpy.types.Panel):
             layout.operator("bim.update_translations_from_po", icon="IMPORT")
 
 
-classes = (
+    classes = (
         ReloadPyTranslations,
         ConvertTranslationsToPo,
         UpdateTranslationsFromPo,
         SetupTranslationUI,
         DisableEnableAddon,
         BBIM_PT_translations,
-)
+    )
 
 
-def register():
+    def register():
         for cls in classes:
             bpy.utils.register_class(cls)
 
 
-def unregister():
+    def unregister():
         for cls in classes:
             bpy.utils.unregister_class(cls)