support explicitly setting the version when no git repository is avai…

…lable

- use --set-verion #.#.# to set the version
- error is generated if --set-version is used when there
  is a git repository

README.rst

@@ -7,6 +7,10 @@ Release history
 ---------------
 
 #. Add Python 3.12 to default test plan.  Removed Python prior to 3.10.
+#. Added **--set-version** option to set the version of the generated Debian
+   package file when building a package where the git repository is not
+   available.
+   https://github.com/keepertech/appackager/issues/4
 
 
 0.8.0 (2024-02-25)

src/kt/appackager/build.py

@@ -337,6 +337,20 @@ def non_editable_pipfile_lock(self):
             os.rename(tmpname, lockname)
 
     def next_version(self):
+        if os.path.exists('.git'):
+            if self.config.set_version:
+                print('cannot use --set-version when used in conjunction'
+                      ' with a git repository', file=sys.stderr)
+                sys.exit(1)
+            return self.next_version_from_git()
+        elif self.config.set_version:
+            return self.config.set_version
+        else:
+            print('use --set-version when running without access to a'
+                  ' git repository', file=sys.stderr)
+            sys.exit(1)
+
+    def next_version_from_git(self):
         stdout = subprocess.check_output(
             ['git', 'log', '--pretty=format:%h %D'])
         stdout = str(stdout, 'utf-8')

src/kt/appackager/cli.py

@@ -21,16 +21,17 @@ def __init__(self, *args, **kwargs):
         super(ArgumentParser, self).__init__(*args, **kwargs)
         self.set_defaults(verbose=0)
         self.add_argument('-c', '--configuration', default='appackager.toml')
+        self.add_argument('--set-version', action='store')
         vg = self.add_mutually_exclusive_group()
         vg.add_argument('-v', '--verbose', action='count')
         vg.add_argument('--verbosity', action='store',
                         dest='verbose', type=int)
 
     def parse_args(self):
-        self.add_argument('settings', nargs="*")
         namespace = super(ArgumentParser, self).parse_args()
         with open(namespace.configuration, 'rb') as cf:
             namespace.config = Configuration(tomli.load(cf))
+        namespace.config.set_version = namespace.set_version
         return namespace