py-topdir.mk: Add machinery to generate pyproject.toml

pyproject.toml is currently copied unchanged from conf/topdir to the
toplevel directory. Set up machinery in py-topdir.mk to render it
from a template in conf/templates instead, replacing {mypypath} in
the process.

Signed-off-by: Jan Lindemann <jan@janware.com>

conf/templates/pyproject.toml

@@ -0,0 +1,80 @@
+[tool.isort]
+
+  lines_between_sections = 1
+  lines_between_types = 1
+
+  # Make sure external deps are classified above
+  known_third_party = [
+    "yaml",
+  ]
+
+  # Define semantic/dependency layers.
+  sections = [
+    "FUTURE",
+    "STDLIB",
+    "THIRDPARTY",
+    "JW_BASIC",
+    "FIRSTPARTY",
+    "LOCALFOLDER",
+  ]
+
+  known_jw_basic = [
+    "jw.pkg",
+  ]
+
+  # Catch other jw.* imports not assigned to a finer section.
+  known_first_party = [
+    "jw",
+  ]
+
+
+[tool.ruff]
+  line-length = 88
+  output-format = "concise"
+
+[tool.ruff.format]
+
+  quote-style = "single"
+
+[tool.ruff.lint]
+
+  future-annotations = true
+
+  select = [
+    "F",    # Pyflakes, includes F401
+    "E",    # pycodestyle errors
+    "W",    # pycodestyle warnings
+    "TC",  # type-checking import placement rules
+    "FA",  # future annotations rules
+  ]
+
+  ignore = [
+    "E251",
+  ]
+
+  unfixable = [
+    "E251",
+  ]
+
+[tool.yapf]
+
+  based_on_style = "pep8"
+  column_limit = 88
+  indent_width = 4
+  continuation_indent_width = 4
+
+  continuation_align_style = "space"
+
+  dedent_closing_brackets = true
+  coalesce_brackets = false
+
+  split_all_comma_separated_values = false
+  split_all_top_level_comma_separated_values = true
+
+  split_before_first_argument = true
+  split_arguments_when_comma_terminated = true
+  split_before_expression_after_opening_paren = true
+
+  spaces_around_default_or_named_assign = true
+  blank_line_before_nested_class_or_def = true
+  blank_lines_around_top_level_definition = 1

make/py-topdir.mk

@@ -1,6 +1,12 @@
-TD_COPY_FILES               += pyproject.toml
+include $(JWBDIR)/make/ldlibpath.mk
+
+TD_GENERATE_FILES           += pyproject.toml
 
 PY_CHECK_EXCLUDE            ?=
+
+MYPY_CONFIG_PATH             = $(subst :,:$$MYPY_CONFIG_FILE_DIR/,:$(PYTHONPATH))
+MYPY_PATH_DIRECTIVE          = mypy_path = "$(MYPY_CONFIG_PATH)"
+
 ifndef PY_CHECK_ROOTS
   PY_CHECK_ROOTS            += $(wildcard $(TOPDIR)/src $(TOPDIR)/tools)
 endif
@@ -70,7 +76,12 @@ clean.topdir: clean.py-check
 clean.py-check:
 	rm -rf .mypy_cache
 
+pyproject.toml:
+	$(PYTHON) $(JWB_SCRIPT_DIR)/jw-pkg.py -p $(PROJECTS_DIR) -t $(TOPDIR) --topdir-format unaltered projects create-file --format tmpl \
+		--template-name $@ --search-path $(JW_PKG_CONF_BASE_DIR)/templates --field mypypath='$(MYPY_PATH_DIRECTIVE)' $(PROJECT) > $@.tmp
+	mv $@.tmp $@
+
 pyrightconfig.json:
 	$(PYTHON) $(JWB_SCRIPT_DIR)/jw-pkg.py -p $(PROJECTS_DIR) -t $(TOPDIR) --topdir-format unaltered projects create-file --format pyright \
-		$(PROJECT) --field base=$(JW_PKG_CONF_BASE_DIR)/project/pyrightconfig-base.json $(addprefix --field include=,$(wildcard src/python tools/python)) > $@.tmp
+		--field base=$(JW_PKG_CONF_BASE_DIR)/project/pyrightconfig-base.json $(addprefix --field include=,$(wildcard src/python tools/python)) $(PROJECT) > $@.tmp
 	mv $@.tmp $@