refactor: use pathlib

conda_smithy/ci_skeleton.py

@@ -6,21 +6,20 @@
 added to conda-forge's queue.
 """
 
-import os
+from pathlib import Path
 import sys
 
 from .configure_feedstock import make_jinja_env
 
 
 def _render_template(template_file, env, forge_dir, config):
     """Renders the template"""
-    template = env.get_template(
-        os.path.basename(template_file) + ".ci-skel.tmpl"
-    )
-    target_fname = os.path.join(forge_dir, template_file)
-    print("Generating " + target_fname, file=sys.stderr)
+    template_file_name = Path(template_file).name
+    template = env.get_template(template_file_name + ".ci-skel.tmpl")
+    target_fname = Path(forge_dir, template_file)
+    print("Generating ", target_fname, file=sys.stderr)
     new_file_contents = template.render(**config)
-    os.makedirs(os.path.dirname(target_fname), exist_ok=True)
+    target_fname.parent.mkdir(parents=True, exist_ok=True)
     with open(target_fname, "w") as fh:
         fh.write(new_file_contents)
 
@@ -37,18 +36,16 @@ def _insert_into_gitignore(
 ):
     """Places gitignore contents into gitignore."""
     # get current contents
-    fname = os.path.join(feedstock_directory, ".gitignore")
-    print("Updating " + fname)
-    if os.path.isfile(fname):
+    fname = Path(feedstock_directory, ".gitignore")
+    print("Updating ", fname.name)
+    if fname.is_file():
         with open(fname, "r") as f:
             s = f.read()
         before, _, s = s.partition(prefix)
         _, _, after = s.partition(suffix)
     else:
         before = after = ""
-        dname = os.path.dirname(fname)
-        if dname:
-            os.makedirs(dname, exist_ok=True)
+        fname.parent.mkdir(parents=True, exist_ok=True)
     new = prefix + GITIGNORE_ADDITIONAL + suffix
     # write out the file
     with open(fname, "w") as f:
@@ -60,7 +57,7 @@ def generate(
     package_name="pkg", feedstock_directory=".", recipe_directory="recipe"
 ):
     """Generates the CI skeleton."""
-    forge_dir = os.path.abspath(feedstock_directory)
+    forge_dir = Path(feedstock_directory).resolve()
     env = make_jinja_env(forge_dir)
     config = dict(
         package_name=package_name,
@@ -69,8 +66,7 @@ def generate(
     )
     # render templates
     _render_template("conda-forge.yml", env, forge_dir, config)
-    _render_template(
-        os.path.join(recipe_directory, "meta.yaml"), env, forge_dir, config
-    )
+    recipe_file_name = str(Path(recipe_directory, "meta.yaml"))
+    _render_template(recipe_file_name, env, forge_dir, config)
     # update files which may exist with other content
     _insert_into_gitignore(feedstock_directory=feedstock_directory)