refactor(grpc): eliminate third-party grpcio-status dependency

Replaced grpcio-status imports with local implementations _from_call and _to_status in client and server transport layers. Removed the grpcio-status dependency from pyproject.toml.

Author: Iwaniukooo11

pyproject.toml

@@ -37,7 +37,7 @@ classifiers = [
 http-server = ["sse-starlette", "starlette"]
 fastapi = ["a2a-sdk[http-server]", "fastapi>=0.115.2"]
 encryption = ["cryptography>=43.0.0"]
-grpc = ["grpcio>=1.60", "grpcio-tools>=1.60", "grpcio-status>=1.60", "grpcio_reflection>=1.7.0"]
+grpc = ["grpcio>=1.60", "grpcio-tools>=1.60", "grpcio_reflection>=1.7.0"]
 telemetry = ["opentelemetry-api>=1.33.0", "opentelemetry-sdk>=1.33.0"]
 postgresql = ["sqlalchemy[asyncio,postgresql-asyncpg]>=2.0.0"]
 mysql = ["sqlalchemy[asyncio,aiomysql]>=2.0.0"]
@@ -94,7 +94,7 @@ filterwarnings = [
   # ResourceWarnings from asyncio event loop/socket cleanup during garbage collection
   # These appear intermittently between tests due to pytest-asyncio and sse-starlette timing
   "ignore:unclosed event loop:ResourceWarning",
-  "ignore:unclosed transport:ResourceWarning", 
+  "ignore:unclosed transport:ResourceWarning",
   "ignore:unclosed <socket.socket:ResourceWarning",
 ]
 
@@ -158,24 +158,24 @@ exclude = [
 [tool.coverage.run]
 branch = true
 omit = [
-    "*/tests/*",
-    "*/site-packages/*",
-    "*/__init__.py",
-    "src/a2a/types/a2a_pb2.py",
-    "src/a2a/types/a2a_pb2_grpc.py",
-    "src/a2a/compat/*/*_pb2*.py",
+  "*/tests/*",
+  "*/site-packages/*",
+  "*/__init__.py",
+  "src/a2a/types/a2a_pb2.py",
+  "src/a2a/types/a2a_pb2_grpc.py",
+  "src/a2a/compat/*/*_pb2*.py",
 ]
 
 [tool.coverage.report]
 exclude_lines = [
-    "pragma: no cover",
-    "import",
-    "def __repr__",
-    "raise NotImplementedError",
-    "if TYPE_CHECKING",
-    "@abstractmethod",
-    "pass",
-    "raise ImportError",
+  "pragma: no cover",
+  "import",
+  "def __repr__",
+  "raise NotImplementedError",
+  "if TYPE_CHECKING",
+  "@abstractmethod",
+  "pass",
+  "raise ImportError",
 ]
 
 #
@@ -184,105 +184,105 @@ exclude_lines = [
 [tool.ruff]
 # This file follows the standards in Google Python Style Guide
 # https://google.github.io/styleguide/pyguide.html
-line-length = 80 # Google Style Guide §3.2: 80 columns
-indent-width = 4 # Google Style Guide §3.4: 4 spaces
+line-length = 80         # Google Style Guide §3.2: 80 columns
+indent-width = 4         # Google Style Guide §3.4: 4 spaces
 target-version = "py310" # Minimum Python version
 
 [tool.ruff.lint]
 preview = true
 explicit-preview-rules = true
 ignore = [
-    "COM812", # Trailing comma missing.
-    "FBT001", # Boolean positional arg in function definition
-    "FBT002", # Boolean default value in function definition
-    "D203",   # 1 blank line required before class docstring (Google: 0)
-    "D213",   # Multi-line docstring summary should start at the second line (Google: first line)
-    "D100",   # Ignore Missing docstring in public module (often desired at top level __init__.py)
-    "D104",   # Ignore Missing docstring in public package (often desired at top level __init__.py)
-    "D107",   # Ignore Missing docstring in __init__ (use class docstring)
-    "TD002",  # Ignore Missing author in TODOs (often not required)
-    "TD003",  # Ignore Missing issue link in TODOs (often not required/available)
-    "T201",   # Ignore print presence
-    "RUF012", # Ignore Mutable class attributes should be annotated with `typing.ClassVar`
-    "E501",   # Ignore line length (handled by Ruff's dynamic line length)
-    "ANN002",
-    "ANN003",
-    "ANN401",
-    "TRY003",
-    "TRY201",
-    "FIX002",
+  "COM812", # Trailing comma missing.
+  "FBT001", # Boolean positional arg in function definition
+  "FBT002", # Boolean default value in function definition
+  "D203",   # 1 blank line required before class docstring (Google: 0)
+  "D213",   # Multi-line docstring summary should start at the second line (Google: first line)
+  "D100",   # Ignore Missing docstring in public module (often desired at top level __init__.py)
+  "D104",   # Ignore Missing docstring in public package (often desired at top level __init__.py)
+  "D107",   # Ignore Missing docstring in __init__ (use class docstring)
+  "TD002",  # Ignore Missing author in TODOs (often not required)
+  "TD003",  # Ignore Missing issue link in TODOs (often not required/available)
+  "T201",   # Ignore print presence
+  "RUF012", # Ignore Mutable class attributes should be annotated with `typing.ClassVar`
+  "E501",   # Ignore line length (handled by Ruff's dynamic line length)
+  "ANN002",
+  "ANN003",
+  "ANN401",
+  "TRY003",
+  "TRY201",
+  "FIX002",
 ]
 
 select = [
-    "E",  # pycodestyle errors (PEP 8)
-    "W",  # pycodestyle warnings (PEP 8)
-    "F",  # Pyflakes (logical errors, unused imports/variables)
-    "I",  # isort (import sorting - Google Style §3.1.2)
-    "D",  # pydocstyle (docstring conventions - Google Style §3.8)
-    "N",  # pep8-naming (naming conventions - Google Style §3.16)
-    "UP", # pyupgrade (use modern Python syntax)
-    "ANN",# flake8-annotations (type hint usage/style - Google Style §2.22)
-    "A",  # flake8-builtins (avoid shadowing builtins)
-    "B",  # flake8-bugbear (potential logic errors & style issues - incl. mutable defaults B006, B008)
-    "C4", # flake8-comprehensions (unnecessary list/set/dict comprehensions)
-    "ISC",# flake8-implicit-str-concat (disallow implicit string concatenation across lines)
-    "T20",# flake8-print (discourage `print` - prefer logging)
-    "SIM",# flake8-simplify (simplify code, e.g., `if cond: return True else: return False`)
-    "PTH",# flake8-use-pathlib (use pathlib instead of os.path where possible)
-    "PL", # Pylint rules ported to Ruff (PLC, PLE, PLR, PLW)
-    "PIE",# flake8-pie (misc code improvements, e.g., no-unnecessary-pass)
-    "RUF",# Ruff-specific rules (e.g., RUF001-003 ambiguous unicode, RUF013 implicit optional)
-    "RET",# flake8-return (consistency in return statements)
-    "SLF",# flake8-self (check for private member access via `self`)
-    "TID",# flake8-tidy-imports (relative imports, banned imports - configure if needed)
-    "YTT",# flake8-boolean-trap (checks for boolean positional arguments, truthiness tests - Google Style §3.10)
-    "TD", # flake8-todos (check TODO format - Google Style §3.7)
-    "TCH",# flake8-type-checking (helps manage TYPE_CHECKING blocks and imports)
-    "PYI",# flake8-pyi (best practices for .pyi stub files, some rules are useful for .py too)
-    "S",  # flake8-bandit (security issues)
-    "DTZ",# flake8-datetimez (timezone-aware datetimes)
-    "ERA",# flake8-eradicate (commented-out code)
-    "Q",  # flake8-quotes (quote style consistency)
-    "RSE",# flake8-raise (modern raise statements)
-    "TRY",# tryceratops (exception handling best practices)
-    "PERF",# perflint (performance anti-patterns)
-    "BLE",
-    "T10",
-    "ICN",
-    "G",
-    "FIX",
-    "ASYNC",
-    "INP",
+  "E",     # pycodestyle errors (PEP 8)
+  "W",     # pycodestyle warnings (PEP 8)
+  "F",     # Pyflakes (logical errors, unused imports/variables)
+  "I",     # isort (import sorting - Google Style §3.1.2)
+  "D",     # pydocstyle (docstring conventions - Google Style §3.8)
+  "N",     # pep8-naming (naming conventions - Google Style §3.16)
+  "UP",    # pyupgrade (use modern Python syntax)
+  "ANN",   # flake8-annotations (type hint usage/style - Google Style §2.22)
+  "A",     # flake8-builtins (avoid shadowing builtins)
+  "B",     # flake8-bugbear (potential logic errors & style issues - incl. mutable defaults B006, B008)
+  "C4",    # flake8-comprehensions (unnecessary list/set/dict comprehensions)
+  "ISC",   # flake8-implicit-str-concat (disallow implicit string concatenation across lines)
+  "T20",   # flake8-print (discourage `print` - prefer logging)
+  "SIM",   # flake8-simplify (simplify code, e.g., `if cond: return True else: return False`)
+  "PTH",   # flake8-use-pathlib (use pathlib instead of os.path where possible)
+  "PL",    # Pylint rules ported to Ruff (PLC, PLE, PLR, PLW)
+  "PIE",   # flake8-pie (misc code improvements, e.g., no-unnecessary-pass)
+  "RUF",   # Ruff-specific rules (e.g., RUF001-003 ambiguous unicode, RUF013 implicit optional)
+  "RET",   # flake8-return (consistency in return statements)
+  "SLF",   # flake8-self (check for private member access via `self`)
+  "TID",   # flake8-tidy-imports (relative imports, banned imports - configure if needed)
+  "YTT",   # flake8-boolean-trap (checks for boolean positional arguments, truthiness tests - Google Style §3.10)
+  "TD",    # flake8-todos (check TODO format - Google Style §3.7)
+  "TCH",   # flake8-type-checking (helps manage TYPE_CHECKING blocks and imports)
+  "PYI",   # flake8-pyi (best practices for .pyi stub files, some rules are useful for .py too)
+  "S",     # flake8-bandit (security issues)
+  "DTZ",   # flake8-datetimez (timezone-aware datetimes)
+  "ERA",   # flake8-eradicate (commented-out code)
+  "Q",     # flake8-quotes (quote style consistency)
+  "RSE",   # flake8-raise (modern raise statements)
+  "TRY",   # tryceratops (exception handling best practices)
+  "PERF",  # perflint (performance anti-patterns)
+  "BLE",
+  "T10",
+  "ICN",
+  "G",
+  "FIX",
+  "ASYNC",
+  "INP",
 ]
 
 exclude = [
-    ".bzr",
-    ".direnv",
-    ".eggs",
-    ".git",
-    ".hg",
-    ".mypy_cache",
-    ".nox",
-    ".pants.d",
-    ".pytype",
-    ".ruff_cache",
-    ".svn",
-    ".tox",
-    ".venv",
-    "__pypackages__",
-    "_build",
-    "buck-out",
-    "build",
-    "dist",
-    "node_modules",
-    "venv",
-    "*/migrations/*",
-    "src/a2a/types/a2a_pb2.py",
-    "src/a2a/types/a2a_pb2.pyi",
-    "src/a2a/types/a2a_pb2_grpc.py",
-    "src/a2a/compat/v0_3/*_pb2.py",
-    "src/a2a/compat/v0_3/*_pb2.pyi",
-    "src/a2a/compat/v0_3/*_pb2_grpc.py",
+  ".bzr",
+  ".direnv",
+  ".eggs",
+  ".git",
+  ".hg",
+  ".mypy_cache",
+  ".nox",
+  ".pants.d",
+  ".pytype",
+  ".ruff_cache",
+  ".svn",
+  ".tox",
+  ".venv",
+  "__pypackages__",
+  "_build",
+  "buck-out",
+  "build",
+  "dist",
+  "node_modules",
+  "venv",
+  "*/migrations/*",
+  "src/a2a/types/a2a_pb2.py",
+  "src/a2a/types/a2a_pb2.pyi",
+  "src/a2a/types/a2a_pb2_grpc.py",
+  "src/a2a/compat/v0_3/*_pb2.py",
+  "src/a2a/compat/v0_3/*_pb2.pyi",
+  "src/a2a/compat/v0_3/*_pb2_grpc.py",
 ]
 
 [tool.ruff.lint.isort]
@@ -300,7 +300,11 @@ allow-star-arg-any = false
 
 [tool.ruff.lint.pep8-naming]
 ignore-names = ["test_*", "setUp", "tearDown", "mock_*"]
-classmethod-decorators = ["classmethod", "pydantic.validator", "pydantic.root_validator"]
+classmethod-decorators = [
+  "classmethod",
+  "pydantic.validator",
+  "pydantic.root_validator",
+]
 staticmethod-decorators = ["staticmethod"]
 
 [tool.ruff.lint.flake8-tidy-imports]
@@ -311,36 +315,29 @@ docstring-quotes = "double"
 inline-quotes = "single"
 
 [tool.ruff.lint.per-file-ignores]
-"__init__.py" = ["F401", "D", "ANN"]  # Ignore unused imports in __init__.py
+"__init__.py" = ["F401", "D", "ANN"] # Ignore unused imports in __init__.py
 "*_test.py" = [
-    "D",      # All pydocstyle rules
-    "ANN",    # Missing type annotation for function argument
-    "RUF013", # Implicit optional type in test function signatures
-    "S101",   # Use of `assert` detected (expected in tests)
-    "PLR2004",
-    "SLF001",
-]
-"test_*.py" = [
-    "D",
-    "ANN",
-    "RUF013",
-    "S101",
-    "PLR2004",
-    "SLF001",
+  "D",       # All pydocstyle rules
+  "ANN",     # Missing type annotation for function argument
+  "RUF013",  # Implicit optional type in test function signatures
+  "S101",    # Use of `assert` detected (expected in tests)
+  "PLR2004",
+  "SLF001",
 ]
-"types.py" = ["D", "E501"]  # Ignore docstring and annotation issues in types.py
+"test_*.py" = ["D", "ANN", "RUF013", "S101", "PLR2004", "SLF001"]
+"types.py" = ["D", "E501"] # Ignore docstring and annotation issues in types.py
 "proto_utils.py" = ["D102", "PLR0911"]
 "helpers.py" = ["ANN001", "ANN201", "ANN202"]
 "scripts/*.py" = ["INP001"]
 
 [tool.ruff.format]
 exclude = [
-    "src/a2a/types/a2a_pb2.py",
-    "src/a2a/types/a2a_pb2.pyi",
-    "src/a2a/types/a2a_pb2_grpc.py",
-    "src/a2a/compat/v0_3/*_pb2.py",
-    "src/a2a/compat/v0_3/*_pb2.pyi",
-    "src/a2a/compat/v0_3/*_pb2_grpc.py",
+  "src/a2a/types/a2a_pb2.py",
+  "src/a2a/types/a2a_pb2.pyi",
+  "src/a2a/types/a2a_pb2_grpc.py",
+  "src/a2a/compat/v0_3/*_pb2.py",
+  "src/a2a/compat/v0_3/*_pb2.pyi",
+  "src/a2a/compat/v0_3/*_pb2_grpc.py",
 ]
 docstring-code-format = true
 docstring-code-line-length = "dynamic"
@@ -354,9 +351,7 @@ indent-style = "space"
 script_location = "src/a2a/migrations"
 
 # additional paths to be prepended to sys.path. defaults to the current working directory.
-prepend_sys_path = [
-    "src"
-]
+prepend_sys_path = ["src"]
 
 [project.scripts]
 a2a-db = "a2a.a2a_db_cli:run_migrations"