Merge pull request #190 from SINTEF/cwa/fix-141-utilize-ignore

Handle version specifiers.

Utilize the `packaging` package to parse the version specifier
set and generate "ignore" rules to utilize the existing logic for
handling "ignore" rules.

In this way, it's more of a "minimum implementation" and
should be easier and more straight forward. However, what may
really be happening, is simply just making the reading and
understanding of the "ignore" rules implementation the point at
which one may struggle to understand the implementation.
But again, since this logic already exists, this does not add
additional complexity.

In addition to parsing the dependency-specific version specifier
set as "ignore" rules, support for the 'python_version' marker is also
implemented, although be it in a limited capacity - mainly due to
not over-complicating the logic further.

Also, the utils.py file has been split up into it's separate parts and
moved into dedicated files under a new utils folder - effectively
changing the `ci-cd` package's Python API.

Finally, some formatting options have been added when printing
to the console. These options include colorization and general
formatting (bold, italic, etc.). Note, these are only displayed in any
given terminal if the terminal supports it.
These options have only been implemented for the update-deps
task, since this is the only one being touched properly by this PR.

Note, the Python API changes mentioned above has also resulted
in a change in the test files structure.
Because all utility functions previously found in
ci_cd.tasks.update_deps have been moved to the new
ci_cd.utils.versions module, some tests have also been moved,
accordingly.

ci_cd/__init__.py

@@ -1,4 +1,9 @@
 """CI/CD Tools. Tiny package to run invoke tasks as a standalone program."""
+import logging
+
 __version__ = "2.5.3"
 __author__ = "Casper Welzel Andersen"
 __author_email__ = "casper.w.andersen@sintef.no"
+
+
+logging.getLogger("ci_cd").setLevel(logging.DEBUG)

ci_cd/exceptions.py

@@ -11,3 +11,7 @@ class InputError(ValueError, CICDException):
 
 class InputParserError(InputError):
     """The input could not be parsed, it may be wrongly formatted."""
+
+
+class UnableToResolve(CICDException):
+    """Unable to resolve a task or sub-task."""

ci_cd/tasks/api_reference_docs.py

@@ -21,8 +21,8 @@
     from invoke import Context, Result
 
 
-LOGGER = logging.getLogger(__file__)
-LOGGER.setLevel(logging.DEBUG)
+# Get logger
+LOGGER = logging.getLogger(__name__)
 
 
 @task(

ci_cd/tasks/setver.py

@@ -13,8 +13,8 @@
 
 from ci_cd.utils import Emoji, SemanticVersion, update_file
 
-LOGGER = logging.getLogger(__file__)
-LOGGER.setLevel(logging.DEBUG)
+# Get logger
+LOGGER = logging.getLogger(__name__)
 
 
 @task(