write version.txt before generating the setup

build_setup_help_on_windows.bat

@@ -3,6 +3,7 @@ IF EXIST dist del /Q dist\*.*
 
 if "%1"=="" goto default_value:
 set pythonexe="%1"
+%pythonexe% setup.py write_version
 goto custom_python:
 
 :default_value:
@@ -42,13 +43,15 @@ echo #######################################################
 :setup34:
 IF NOT EXIST c:\Python34 GOTO utpy34_64:
 set pythonexe="c:\Python34\python"
+%pythonexe% setup.py write_version
 %pythonexe% setup.py clean_pyd
 %pythonexe% setup.py build bdist_wininst --plat-name=win-amd64
 if %errorlevel% neq 0 exit /b %errorlevel%
 echo #######################################################
 
 :utpy34_64:
 set pythonexe="c:\Python34_x64\python"
+%pythonexe% setup.py write_version
 %pythonexe% -u setup.py clean_space
 if %errorlevel% neq 0 exit /b %errorlevel%
 %pythonexe% -u setup.py unittests

setup.py

@@ -144,6 +144,16 @@ def import_pyquickhelper():
             ".sh"])
     print("number of impacted files", len(rem))
 
+elif "write_version" in sys.argv:
+    pyquickhelper = import_pyquickhelper()
+    from pyquickhelper.loghelper.pyrepo_helper import SourceRepository
+    src = SourceRepository(commandline=True)
+    fold = os.path.abspath(os.path.dirname(__file__))
+    version = src.version(fold)
+    if version is not None:
+        with open(os.path.join(fold, "version.txt"), "w") as f:
+            f.write(str(version) + "\n")
+
 elif "clean_pyd" in sys.argv:
     pyquickhelper = import_pyquickhelper()
     pyquickhelper.clean_exts()