Configure helix and ruff

- Make helix use ruff-lsp and pyright
- Configure ruff to my specifications
- Tweak a helix theme color or two

.config/helix/languages.toml

@@ -0,0 +1,12 @@
+[[language]]
+name = "python"
+roots = ["pyproject.toml"]
+language-servers = ["pyright", "ruff"]
+auto-format = true
+
+[language-server.pyright]
+command = "pyright-langserver"
+args = ["--stdio"]
+
+[language-server.ruff]
+command = "ruff-lsp"

.config/helix/themes/base16_qvp.toml

@@ -18,7 +18,7 @@
 "ui.text" = "base05"
 "operator" = "base05"
 "ui.text.focus" = "base05"
-"variable" = "base08"
+"variable" = "base09"
 "constant.numeric" = "base09"
 "constant" = "base09"
 "attribute" = "base09"
@@ -26,12 +26,12 @@
 "ui.cursor.match" = { fg = "base0A", modifiers = ["underlined"] }
 "string"  = "base0B"
 "variable.other.member" = "base08"
-"constant.character.escape" = "base0C"
+"constant.character.escape" = "base08"
 "function" = "base0D"
 "constructor" = "base0D"
 "special" = "base0D"
 "keyword" = "base0E"
-"label" = "base0E"
+"label" = "base0A"
 "namespace" = "base0E"
 "ui.help" = { fg = "base06", bg = "base01" }
 

.config/ruff/pyproject.toml

@@ -0,0 +1,50 @@
+[tool.ruff]
+line-length = 120
+indent-width = 4
+
+# Dismissed selections:
+# - CPY: Copyright notice screamer; I don't care
+# - TD: Overly opinionated on FIXME/TODO format. FIX covers better
+select = [
+    "ANN", # enforce type annotations
+    "A",   # prevent using keywords that clobber python builtins
+    "ARG", # argument usage checking
+    "B",   # bugbear: security warnings
+    "C4",  # generator usage
+    "C90", # mccabe code complexity
+    "COM", # comma usage
+    "D",   # pydocstyle
+    "DTZ", # datetimez sanity
+    "E",   # pycodestyle errors
+    "EM",  # error message handling
+    "F",   # pyflakes - should be enabled but make explicit
+    "ERA", # commented code screamer
+    "FBT", # boolean traps
+    "FIX", # fixme screamer
+    "F",   # pyflakes
+    "G",   # logging handling
+    "I",   # isort
+    "ISC", # implicit string concatenation
+    "PIE", # pie stuff
+    "PL",  # pylint rules
+    "PTH", # pathlib usage
+    "Q",   # quote handling
+    "RET", # return handling
+    "RUF", # the ruff developer's own rules
+    "SIM", # simplification options
+    "UP",  # alert you when better syntax is available in your python version
+    "W",   # pycodestyle warnings
+]
+
+ignore = [
+    "ANN101", # No type hint for "self" - not necessary and makes noisy code
+    "D211",   # No line before class, incompatible with D203 - one line before class
+    "D212",   # Summary on first line; incompatible with D213 - summary on second line
+    "D400"    # Summary should end with period - duplicates D415 - summary ends with punctuation
+]
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+skip-magic-trailing-comma = false
+