REL: exclude gitarchive.cfg from package files

- move gitarchive.cfg to repository root
- exclude it from source distribution tarball
- exclude it from installation with package data
- fix test for expanded .gitarchive.cfg in setup.py

Author: pavoljuhas

src/pyobjcryst/gitarchive.cfg .gitarchive.cfg

@@ -4,4 +4,4 @@
 /conda-recipe/  export-ignore
 /devutils  export-ignore
 /doc  export-ignore
-gitarchive.cfg  export-subst
+.gitarchive.cfg  export-subst

.gitattributes

@@ -2,7 +2,8 @@ recursive-include src *
 include SConstruct
 include AUTHORS.txt LICENSE*.txt README.rst
 recursive-exclude src *.pyc *.so
-global-exclude .gitattributes .gitignore .DS_Store
+global-exclude .gitattributes .gitignore .gitarchive.cfg
+global-exclude .DS_Store
 
 # Avoid user content in setup.cfg to make distribution reproducible.
 exclude setup.cfg

MANIFEST.in

@@ -77,7 +77,7 @@ def create_extensions():
 # It must reside in the same directory as version.py.
 MYDIR = os.path.dirname(os.path.abspath(__file__))
 versioncfgfile = os.path.join(MYDIR, 'src/pyobjcryst/version.cfg')
-gitarchivecfgfile = versioncfgfile.replace('version.cfg', 'gitarchive.cfg')
+gitarchivecfgfile = os.path.join(MYDIR, '.gitarchive.cfg')
 
 
 def gitinfo():
@@ -103,7 +103,7 @@ def getversioncfg():
     g = vd0.copy()
     cp0 = RawConfigParser(vd0)
     cp0.read(gitarchivecfgfile)
-    if '$Format:' not in cp0.get('DEFAULT', 'commit'):
+    if len(cp0.get('DEFAULT', 'commit')) > 20:
         g = cp0.defaults()
         mx = re.search(r'\btag: v(\d[^,]*)', g.pop('refnames'))
         if mx: