chore: more consistent dev env

Author: sindrets

.gitignore

@@ -1,2 +1,3 @@
 /doc/tags
 /.tests/
+/.dev/

.luarc.json

@@ -5,8 +5,11 @@
         "cast-type-mismatch",
         "missing-fields"
     ],
+    "runtime.version": "LuaJIT",
     "workspace.checkThirdParty": false,
     "workspace.library": [
-      "$VIMRUNTIME",
+        "./lua",
+        "$VIMRUNTIME/lua",
+        ".dev/lua/nvim"
     ]
 }

Makefile

@@ -1,5 +1,5 @@
 .PHONY: all
-all: test
+all: dev test
 
 TEST_PATH := $(if $(TEST_PATH),$(TEST_PATH),lua/diffview/tests/)
 export TEST_PATH
@@ -12,9 +12,22 @@ export TEST_PATH
 # 	$ TEST_PATH=tests/some/path make test
 .PHONY: test
 test:
-	nvim --headless -i NONE -n -u scripts/minimal_init.lua -c \
-		"PlenaryBustedDirectory $(TEST_PATH) { minimal_init = './scripts/minimal_init.lua' }"
+	nvim --headless -i NONE -n -u scripts/test_init.lua -c \
+		"PlenaryBustedDirectory $(TEST_PATH) { minimal_init = './scripts/test_init.lua' }"
+
+.PHONY: dev
+dev: .dev/lua/nvim
+
+.dev/lua/nvim:
+	mkdir -p "$@"
+	git clone --filter=blob:none https://github.com/folke/neodev.nvim.git "$@/repo"
+	cd "$@/repo" && git -c advice.detachedHead=false checkout ce9a2e8eaba5649b553529c5498acb43a6c317cd
+	cp	"$@/repo/types/nightly/uv.lua" \
+		"$@/repo/types/nightly/cmd.lua" \
+		"$@/repo/types/nightly/alias.lua" \
+		"$@/"
+	rm -rf "$@/repo"
 
 .PHONY: clean
 clean:
-	rm -rf .tests
+	rm -rf .tests .dev