chore: use vite/vitest in place of esbuild/karma+jasmine

Neuroglancer can now be used as a regular NPM dependency with vite, parcel, or
webpack as the bundler (but unfortunately not esbuild due to
evanw/esbuild#795), and can be installed as a
dependency via a git URL.

Node.js import/export conditions are now used to enable/disable layer types and
datasources, which can be configured by dependent projects rather than when
Neuroglancer itself is built/published.

The Python tests accept a `--build-client` option to run the dev server
automatically rather than requiring a pre-built Python Neuroglancer client.

.eslintignore

@@ -2,3 +2,14 @@ node_modules
 dist
 python
 templates/neuroglancer/sliceview
+src/third_party/jpgjs/jpg.js
+templates
+build
+.tox
+.nox
+/lib
+python
+config
+typings
+src/mesh/draco/stub.js
+tsconfig.tsbuildinfo

.eslintrc.yml

@@ -0,0 +1,67 @@
+root: true
+parser: "@typescript-eslint/parser"
+plugins:
+  - "@typescript-eslint"
+  - "import"
+settings:
+  "import/parsers":
+    "@typescript-eslint/parser": [".ts", ".tsx"]
+  "import/resolver":
+    "typescript":
+    "node":
+extends:
+  - "eslint:recommended"
+  - "plugin:@typescript-eslint/eslint-recommended"
+  - "plugin:@typescript-eslint/recommended"
+  - "plugin:import/recommended"
+rules:
+  "@typescript-eslint/no-explicit-any": "off"
+  "@typescript-eslint/explicit-module-boundary-types": "off"
+  "@typescript-eslint/no-non-null-assertion": "off"
+  "@typescript-eslint/no-inferrable-types": "off"
+  "@typescript-eslint/no-this-alias": "off"
+  "@typescript-eslint/no-empty-function": "off"
+  "@typescript-eslint/no-empty-interface": "off"
+  "prefer-const":
+    - "error"
+    - destructuring: "all"
+  "no-constant-condition": "off"
+  "@typescript-eslint/no-unused-vars":
+    - "error"
+    - argsIgnorePattern: "^_"
+      ignoreRestSiblings: true
+  "@typescript-eslint/ban-types":
+    - "error"
+    - types:
+        # unban Function
+        "Function": false
+      extendDefaults: true
+  "no-unsafe-finally": "off"
+  "require-yield": "off"
+  "no-inner-declarations": "off"
+  "import/no-named-as-default-member": "off"
+  "import/no-cycle": "error"
+  "@typescript-eslint/consistent-type-imports": "error"
+  "import/no-unresolved": "error"
+  "import/no-extraneous-dependencies": "error"
+  "import/first": "error"
+  "import/order":
+    - "error"
+    - groups:
+        - "builtin"
+        - "external"
+        - "internal"
+      alphabetize:
+        order: "asc"
+        orderImportKind: "asc"
+overrides:
+  - files:
+      - "src/**/*"
+    rules:
+      "no-restricted-imports":
+        - "error"
+        - patterns:
+            - group:
+                - "./"
+                - "../"
+              message: "Relative imports are not allowed."

.github/workflows/build.yml

@@ -38,16 +38,7 @@ jobs:
         run: npm run build-python -- --no-typecheck
       - uses: ./.github/actions/setup-firefox
       - name: Run JavaScript tests (including WebGL)
-        # Swiftshader, used by Chrome headless, crashes when running Neuroglancer
-        # tests.
-        #
-        # The only reliable headless configuration is Firefox on Linux under
-        # xvfb-run, which uses Mesa software rendering.
-        if: startsWith(runner.os, 'Linux')
-        run: xvfb-run --auto-servernum --server-args='-screen 0 1024x768x24' npm run test -- --browsers Firefox
-      - name: Run JavaScript tests (excluding WebGL)
-        if: ${{ !startsWith(runner.os, 'Linux') }}
-        run: npm run test -- --browsers ChromeHeadless --define=NEUROGLANCER_SKIP_WEBGL_TESTS
+        run: npm test
       - name: Run JavaScript benchmarks
         run: npm run benchmark
 
@@ -63,6 +54,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
         node-version:
           - "20.x"
         os:

.gitignore

@@ -1,4 +1,4 @@
-/node_modules/
+node_modules
 /dist/
 /trans
 /build/
@@ -18,3 +18,5 @@ tsconfig.tsbuildinfo
 .nox
 .pytest_cache
 /ngauth_server/secrets/
+.eslintcache
+/lib

.prettierignore

@@ -2,3 +2,6 @@
 /python/
 /third_party/jpgjs/jpg.js
 /testdata/*.json
+.parcel-cache
+dist
+/lib

.prettierrc.yml

@@ -0,0 +1,4 @@
+overrides:
+  - files: ".parcelrc"
+    options:
+      parser: "json5"

CONTRIBUTING.md

@@ -23,7 +23,7 @@ All submissions, including submissions by project members, require review.
 ### Coding Style
 
 For consistency, please ensure that all TypeScript/JavaScript files
-are linted with Biome and formatted by `prettier`.
+are linted with `eslint` and formatted by `prettier`.
 
 You can check for lint/format issues with: