Update documentation build

Author: Sparks29032

.github/workflows/docs.yml

@@ -14,6 +14,8 @@ jobs:
         shell: bash -l {0}
     steps:
       - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
 
       - uses: conda-incubator/setup-miniconda@v2
         with:

.github/workflows/main.yml

@@ -21,6 +21,7 @@ jobs:
         with:
           repository: diffpy/diffpy.utils
           path: .
+          fetch-depth: 0  # avoid shallow clone with no tags
 
       - name: initialize miniconda
         # this uses a marketplace action that sets up miniconda in a way that makes

doc/manual/source/conf.py

@@ -63,8 +63,8 @@
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
-from setup import versiondata
-fullversion = versiondata.get('DEFAULT', 'version')
+from importlib.metadata import version
+fullversion = version(project)
 # The short X.Y version.
 version = ''.join(fullversion.split('.post')[:1])
 # The full version, including alpha/beta/rc tags.
@@ -77,8 +77,7 @@
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
 #today = ''
-today_seconds = versiondata.getint('DEFAULT', 'timestamp')
-today = time.strftime('%B %d, %Y', time.localtime(today_seconds))
+today = time.strftime('%B %d, %Y', time.localtime())
 year = today.split()[-1]
 # Else, today_fmt is used as the format for a strftime call.
 #today_fmt = '%B %d, %Y'

src/diffpy/utils/version.py

@@ -36,7 +36,7 @@
     with as_file(ref) as fcfg:
         if not os.path.isfile(fcfg):    # pragma: no cover
             from warnings import warn
-            warn('Package metadata not found, execute "./setup.py egg_info".')
+            warn('Package metadata not found.')
             fcfg = os.devnull
         with open(fcfg) as fp:
             kwords = [[w.strip() for w in line.split(' = ', 1)]