Implement get_dependency into CLI

Author: robbievanleeuwen

README.md

@@ -16,7 +16,7 @@ Creates PRs for dependency updates in python projects.
 - [x] Get dependencies from pre-commit
 - [x] Github auth & async
 - [x] Create dependency abstract class
-- [ ] Use get_dependency
+- [x] Use get_dependency
 - [ ] Implement CLI
 - [x] Create changes to files
 - [ ] Create pull request

src/upgrade_dependencies/main.py

@@ -137,13 +137,11 @@ def check_dependency(
         gh_pat=GH_PAT,
     )
 
-    for d in project.dependencies:
-        if d.package_name == dependency:
-            dep = d
-            break
-    else:
+    try:
+        dep = project.get_dependency(name=dependency)
+    except RuntimeError as e:
         rprint(f"Cannot find {dependency} in {project.name}.")
-        raise typer.Exit(code=1)
+        raise typer.Exit(code=1) from e
 
     asyncio.run(dep.save_data())