Switch from flake8 to ruff (#1696)

DEVELOPING.md

@@ -60,7 +60,7 @@ Note that in the test, we can access `pwndbg` library code like `pwndbg.gdblib.r
 
 ## Linting
 
-The `lint.sh` script runs `isort`, `black`, `flake8`, `shfmt`, and `vermin`. `isort` and `black` are able to automatically fix any issues they detect, and you can enable this by running `./lint.sh -f`. You can find the configuration files for these tools in `setup.cfg` and `pyproject.toml`.
+The `lint.sh` script runs `isort`, `black`, `ruff`, `shfmt`, and `vermin`. `isort` and `black` are able to automatically fix any issues they detect, and you can enable this by running `./lint.sh -f`. You can find the configuration files for these tools in `setup.cfg` and `pyproject.toml`.
 
 When submitting a PR, the CI job defined in `.github/workflows/lint.yml` will verify that running `./lint.sh` succeeds, otherwise the job will fail and we won't be able to merge your PR.
 

dev-requirements.txt

@@ -2,21 +2,18 @@ black==22.8.0; python_version < '3.7'
 black==22.12.0; python_version >= '3.7'
 coverage==6.2; python_version < '3.7'
 coverage==7.0.1; python_version >= '3.7'
-flake8==5.0.4; python_version < '3.9'
-flake8==6.0.0; python_version >= '3.9'
-flake8-builtins==2.0.0; python_version < '3.7'
-flake8-builtins==2.1.0; python_version >= '3.7'
 mypy==0.991; python_version >= '3.7'
-testresources==2.0.1
 isort==5.10.1; python_version < '3.7'
 isort==5.11.4; python_version >= '3.7'
 pytest==7.0.1; python_version < '3.7'
 pytest==7.2.0; python_version >= '3.7'
+rich==12.6.0; python_version < '3.7'
+rich==13.3.1; python_version >= '3.7'
+ruff==0.0.264; python_version >= '3.7'
+testresources==2.0.1
 types-gdb==12.1.4.1
 types-psutil==5.9.5
 types-Pygments==2.12.1
 types-tabulate==0.9.0.0
 types-requests==2.28.11.17
 vermin==1.5.1
-rich==12.6.0; python_version < '3.7'
-rich==13.3.1; python_version >= '3.7'

lint.sh

@@ -29,7 +29,7 @@ done
 set -o xtrace
 
 LINT_FILES="pwndbg tests *.py"
-LINT_TOOLS="isort black flake8 vermin"
+LINT_TOOLS="isort black ruff vermin"
 
 if ! type ${LINT_TOOLS} &> /dev/null; then
     PIP_CMD="pip install -Ur dev-requirements.txt"
@@ -58,7 +58,7 @@ fi
 # Checking minimum python version
 vermin -vvv --no-tips -q -t=3.6 --violations ./pwndbg/
 
-flake8 --show-source ${LINT_FILES}
+ruff check --show-source ${LINT_FILES}
 
 if [ -x "$(command -v mypy)" ]; then
     mypy pwndbg

pyproject.toml

@@ -2,6 +2,47 @@
 line-length = 100
 extend-exclude = "gdb-pt-dump"
 
+[tool.ruff]
+exclude = ["gdb-pt-dump"]
+ignore = [
+    "A003",
+    "E402",
+    "E501",
+    "E731",
+    "F405",
+    "F811",
+    "F821",
+    "F841",
+    "W505",
+]
+line-length = 100
+select = [
+    "A",
+    "E",
+    "F",
+    "W",
+]
+
+[tool.ruff.flake8-builtins]
+builtins-ignorelist = [
+    "all",
+    "bin",
+    "breakpoint",
+    "copyright",
+    "dir",
+    "exit",
+    "format",
+    "hex",
+    "map",
+    "max",
+    "min",
+    "next",
+    "type",
+]
+
+[tool.ruff.per-file-ignores]
+"__init__.py" = ["F401"]
+
 [tool.mypy]
 strict_optional = false
 check_untyped_defs = true

setup.cfg

@@ -1,50 +0,0 @@
-[flake8]
-ignore =
-    # whitespace before ‘:’
-    E203,
-    # too many leading '#' for block comment
-    E266,
-    # block comment should start with ‘# ‘
-    E265,
-    # module level import not at top of file
-    E402,
-    # line too long (82 > 79 characters)
-    E501,
-    # do not assign a lambda expression, use a def
-    E731
-    # line break before binary operator (default)
-    W503,
-    # doc line too long (82 > 79 characters) (default)
-    W505,
-    # name may be undefined, or defined from star imports: module
-    F405,
-    # redefinition of unused name from line n
-    F811,
-    # undefined name name
-    F821,
-    # local variable name is assigned to but never used
-    F841,
-    # class attribute is shadowing a python builtin
-    A003
-
-per-file-ignores =
-    # Unused imports in __init__.py are fine
-    __init__.py:F401
-
-max-line-length = 100
-exclude = gdb-pt-dump
-
-# flake8-builtins should allow these builtins to be shadowed
-builtins-ignorelist =
-    all,
-    breakpoint,
-    copyright,
-    dir,
-    exit,
-    format,
-    hex,
-    map,
-    max,
-    min,
-    next,
-    type