chore: add deptry dependency analysis check

.github/workflows/python_dependency_analysis.yml

@@ -0,0 +1,38 @@
+name: Dependency Analysis
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "airbyte_cdk/**"
+      - "poetry.lock"
+      - "pyproject.toml"
+  pull_request:
+    paths:
+      - "airbyte_cdk/**"
+      - "poetry.lock"
+      - "pyproject.toml"
+
+jobs:
+  dependency-analysis:
+    name: Dependency Analysis with Deptry
+    runs-on: ubuntu-24.04
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+    - name: Set up Poetry
+      uses: Gr1N/setup-poetry@v9
+      with:
+        poetry-version: "2.0.1"
+    - name: Install dependencies
+      run: poetry install --all-extras
+
+    # Job-specific step(s):
+    - name: Run Deptry
+      run: |
+        poetry run deptry .

pyproject.toml

@@ -40,31 +40,33 @@ isodate = "~0.6.1"
 Jinja2 = "~3.1.2"
 jsonref = "~0.2"
 jsonschema = "~4.17.3"  # 4.18 has some significant breaking changes: https://github.com/python-jsonschema/jsonschema/releases/tag/v4.18.0
+packaging = "*"  # Transitive dependency used directly in code
 pandas = "2.2.2"
-psutil = "6.1.0"
+psutil = "6.1.0" # TODO: Remove if unused
 pydantic = "^2.7"
 pyrate-limiter = "~3.1.0"
 python-dateutil = "^2.9.0"
 python-ulid = "^3.0.0"
 PyYAML = "^6.0.1"
-rapidfuzz = "^3.10.1"
+rapidfuzz = "^3.10.1" # TODO: Remove if unused
 requests = "*"
 requests_cache = "*"
+typing-extensions = "*"  # Transitive dependency used directly in code
 wcmatch = "10.0"
 # Extras depedencies
-avro = { version = ">=1.11.2,<1.13.0", optional = true }
+avro = { version = ">=1.11.2,<1.13.0", optional = true }  # TODO: Move into dev dependencies if only used in tests
 cohere = { version = "4.21", optional = true }
 fastavro = { version = "~1.8.0", optional = true }
 langchain = { version = "0.1.16", optional = true }
 langchain_core = { version = "0.1.42", optional = true }
-markdown = { version = "*", optional = true }
-openai = { version = "0.27.9", extras = ["embeddings"], optional = true }
+markdown = { version = "*", optional = true }  # TODO: Remove if unused
+openai = { version = "0.27.9", extras = ["embeddings"], optional = true }  # Used indirectly by langchain library
 pdf2image = { version = "1.16.3", optional = true }
-"pdfminer.six" = { version = "20221105", optional = true }
+"pdfminer.six" = { version = "20221105", optional = true }  # Used indirectly by unstructured library
 pyarrow = { version = "^19.0.0", optional = true }
-pytesseract = { version = "0.3.10", optional = true }
-python-calamine = { version = "0.2.3", optional = true }
-python-snappy = { version = "0.7.3", optional = true }
+pytesseract = { version = "0.3.10", optional = true }  # Used indirectly by unstructured library
+python-calamine = { version = "0.2.3", optional = true }  # TODO: Remove if unused
+python-snappy = { version = "0.7.3", optional = true }  # TODO: remove if unused
 tiktoken = { version = "0.8.0", optional = true }
 nltk = { version = "3.9.1", optional = true }
 # This will ensure that even when you run poetry install or pip install, the compatible version of numpy will always be chosen.
@@ -73,7 +75,7 @@ numpy = "<2"
 unstructured = { version = "0.10.27", extras = ["docx", "pptx"], optional = true }
 "unstructured.pytesseract" = { version = ">=0.3.12", optional = true }
 pyjwt = "^2.8.0"
-cryptography = ">=44.0.0,<45.0.0"
+cryptography = ">=44.0.0,<45.0.0"  # Constrained as transitive dependency due to a bug in newer versions
 pytz = "2024.2"
 orjson = "^3.10.7"
 serpyco-rs = "^1.10.2"
@@ -102,6 +104,7 @@ types-requests = "^2.32.0.20241016"
 types-python-dateutil = "^2.9.0.20241003"
 types-pyyaml = "^6.0.12.20240917"
 types-cachetools = "^5.5.0.20240820"
+deptry = "^0.23.0"
 
 [tool.poetry.extras]
 file-based = ["avro", "fastavro", "pyarrow", "unstructured", "pdf2image", "pdfminer.six", "unstructured.pytesseract", "pytesseract", "markdown", "python-calamine", "python-snappy"]
@@ -196,3 +199,57 @@ optional_poetry_groups = ["dev"]
 poetry_extras = ["file-based", "vector-db-based"]
 poe_tasks = ["check-ci"]
 mount_docker_socket = true
+
+[tool.deptry]
+exclude = [
+  "bin",
+  "docs",
+  "unit_tests",
+]
+
+[tool.deptry.per_rule_ignores]
+# This is a mapping of rules and package names to be ignored for that rule.
+
+# DEP001: Project should not contain missing dependencies.
+# https://deptry.com/rules-violations/#missing-dependencies-dep001
+DEP001 = [
+  # These are imported but not declared:
+  "source_declarative_manifest"  # Imported only in dynamic import tests, not in main code
+]
+
+# DEP002: Project should not contain unused dependencies.
+# https://deptry.com/rules-violations/#missing-dependencies-dep002
+DEP002 = [
+  "cryptography",  # Constrained as transitive dependency due to a bug in newer versions
+
+  # TODO: Remove these dependencies if not needed:
+  "avro",  # Only imported in `unit_tests` code
+  "psutil",
+  "rapidfuzz",
+  "cohere",
+  "markdown",
+  "openai",
+  "pdf2image",
+  "pdfminer.six",
+  "pytesseract",
+  "python-calamine",
+  "python-snappy",
+  "tiktoken",
+  "unstructured.pytesseract",
+]
+
+# DEP003: Project should not use transitive dependencies.
+# https://deptry.com/rules-violations/#transitive-dependencies-dep003
+DEP003 = [
+  # Transitive dependencies that are imported directly
+  "pydantic_core"  # Pydantic internals, no need to define as separate dependency
+]
+
+# DEP004: Project should not use development dependencies in non-development code.
+# https://deptry.com/rules-violations/#misplaced-development-dependencies-dep004
+DEP004 = [
+  # The `airbyte_cdk.test.utils` module is main code.
+  # TODO: These should probably be declared within a `tests` extra:
+  "pytest",
+  "requests_mock",
+]