Merge pull request #21 from scipp/version

runtime __version__ info

.gitignore

@@ -1,2 +1,3 @@
 *.pyc
 .idea
+_fixed_version.py

conda/bld.bat

@@ -1 +1,8 @@
-move src\ess %CONDA_PREFIX%\lib\
+@echo off
+echo | set /p="__version__ = '" > _fixed_version.py
+python src\ess\_version.py > output_ver
+set /p version=<output_ver
+echo | set /p=%version%' >> _fixed_version.py
+del output_ver
+move _fixed_version.py src\ess
+move src\ess %CONDA_PREFIX%\lib\

conda/build.sh

@@ -1 +1,4 @@
+set -ex
+echo __version__ = '"'$(python src/ess/_version.py)'"' > _fixed_version.py
+cp _fixed_version.py src/ess/ 
 cp -r src/ess "$CONDA_PREFIX"/lib/python*/

conda/meta.yaml

@@ -10,6 +10,7 @@ requirements:
     - python {{ python }}
     - sphinx>=1.6
     - sphinx_rtd_theme
+    - gitpython
   run:
     - python {{ python }}
     - scippneutron

ess-latest.yml

@@ -15,3 +15,4 @@ dependencies:
   - astropy 
   - matplotlib
   - python
+  - gitpython

src/ess/__init__.py

@@ -0,0 +1,2 @@
+from . import _version
+__version__ = _version.__version__

src/ess/_version.py

@@ -0,0 +1,19 @@
+import os
+
+
+def _version():
+    dir_path = os.path.dirname(os.path.realpath(__file__))
+    try:
+        import git
+        g = git.cmd.Git(dir_path)
+        g.fetch()
+        return g.describe('--tags')
+    except (ImportError, git.exc.GitError):
+        from . import _fixed_version
+        return _fixed_version.__version__
+
+
+if __name__ == "__main__":
+    print(_version())
+else:
+    __version__ = _version()