Modernize (#32)

* Use prettier instead of clang-format

We're formatting TypeScript, not C/C++.

* Modernize

This bumps the version to 0.1.19 because the type of `AbortController`
is not backwards compatible.

- Remove obsolete dependencies.
  - abort-controller; `AbortController` is stable since Node 15.4.0.
  - source-map-support; `--enable-source-maps` is supported since Node
    12.12.0.
- Update dependencies.
- Enable strict mode in `tsconfig.json`.
- Use `which(..., {nothrow: true})` and distinguish between
  binary-not-in-PATH and binary-access-failed. Log an error.
- Check for presence of clangd binary in zip archive before extracting.
- Use native promises APIs instead of `promisify`.
- Assign severity to all logs (no more `console.log`).

Author: tamird

.github/workflows/ci.yml

@@ -1,26 +1,14 @@
 name: CI
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - run: npm ci
-    - run: npm test
-    - name: clang-format (diff)
-      if: github.event_name == 'pull_request'
-      env:
-        BASE: ${{ github['base_ref'] }}
-      run: |
-        git fetch --no-tags --prune --depth=1 origin +refs/heads/$BASE:refs/remotes/origin/$BASE
-        npm run git-clang-format -- --diff origin/$BASE |\
-        awk -v s="^diff" '$0~s{r=1} 1; END{exit(r)}'
-    - name: clang-format (project)
-      if: github.event_name == 'push'
-      run: |
-        npm run git-clang-format -- --diff --commit $(git hash-object -t tree /dev/null) |\
-        awk -v s="^diff" '$0~s{r=1} 1; END{exit(r)}'
+      - uses: actions/checkout@v4
+      - run: npm ci
+      - run: npm test
+      - run: npx prettier . --check

.gitignore

@@ -1,3 +1,2 @@
 node_modules/
 out/
-

.prettierignore

@@ -0,0 +1 @@
+out

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "bracketSpacing": false,
+  "singleQuote": true
+}

README.md

@@ -1,2 +1,3 @@
 # node-clangd
+
 Shared features of vscode-clangd and coc-clangd