ARROW-8394: [JS] Upgrade to TypeScript 4.0.2, fix typings for TS 3.9+

.env

@@ -30,7 +30,7 @@ LLVM=10
 CLANG_TOOLS=8
 RUST=nightly-2020-04-22
 GO=1.12
-NODE=11
+NODE=14
 MAVEN=3.5.4
 JDK=8
 PANDAS=latest

.github/workflows/js.yml

@@ -40,7 +40,7 @@ env:
 jobs:
 
   docker:
-    name: AMD64 Debian 10 NodeJS 11
+    name: AMD64 Debian 10 NodeJS 14
     runs-on: ubuntu-latest
     if: ${{ !contains(github.event.pull_request.title, 'WIP') }}
     steps:
@@ -75,7 +75,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [11]
+        node: [14]
     steps:
       - name: Checkout Arrow
         uses: actions/checkout@v2
@@ -103,7 +103,7 @@ jobs:
   #   strategy:
   #     fail-fast: false
   #     matrix:
-  #       node: [11]
+  #       node: [14]
   #   steps:
   #     - name: Checkout Arrow
   #       uses: actions/checkout@v1

ci/docker/conda-integration.dockerfile

@@ -21,7 +21,7 @@ FROM ${repo}:${arch}-conda-cpp
 
 ARG arch=amd64
 ARG maven=3.5
-ARG node=11
+ARG node=14
 ARG jdk=8
 ARG go=1.12
 

ci/docker/debian-10-js.dockerfile

@@ -16,7 +16,7 @@
 # under the License.
 
 ARG arch=amd64
-ARG node=11
+ARG node=14
 FROM ${arch}/node:${node}
 
 ENV NODE_NO_WARNINGS=1

ci/docker/linux-apt-docs.dockerfile

@@ -62,7 +62,7 @@ RUN /arrow/ci/scripts/util_download_apache.sh \
 ENV PATH=/opt/apache-maven-${maven}/bin:$PATH
 RUN mvn -version
 
-ARG node=11
+ARG node=14
 RUN wget -q -O - https://deb.nodesource.com/setup_${node}.x | bash - && \
     apt-get install -y nodejs && \
     apt-get clean && \

js/gulp/arrow-task.js

@@ -21,11 +21,11 @@ const {
 
 const del = require('del');
 const gulp = require('gulp');
-const { promisify } = require('util');
+const mkdirp = require('mkdirp');
 const gulpRename = require(`gulp-rename`);
 const { memoizeTask } = require('./memoize-task');
-const exec = promisify(require('child_process').exec);
 const { Observable, ReplaySubject } = require('rxjs');
+const pipeline = require('util').promisify(require('stream').pipeline);
 
 const arrowTask = ((cache) => memoizeTask(cache, function copyMain(target) {
     const out = targetDir(target);
@@ -53,8 +53,8 @@ const arrowTask = ((cache) => memoizeTask(cache, function copyMain(target) {
 
 const arrowTSTask = ((cache) => memoizeTask(cache, async function copyTS(target, format) {
     const out = targetDir(target, format);
-    await exec(`mkdirp ${out}`);
-    await exec(`shx cp -r src/* ${out}`);
+    await mkdirp(out);
+    await pipeline(gulp.src(`src/*`), gulp.dest(out));
     await del(`${out}/**/*.js`);
 }))({});
 

js/gulp/closure-task.js

@@ -29,10 +29,10 @@ const {
 const fs = require('fs');
 const gulp = require('gulp');
 const path = require('path');
+const mkdirp = require('mkdirp');
 const sourcemaps = require('gulp-sourcemaps');
 const { memoizeTask } = require('./memoize-task');
 const { compileBinFiles } = require('./typescript-task');
-const mkdirp = require('util').promisify(require('mkdirp'));
 const closureCompiler = require('google-closure-compiler').gulp();
 
 const closureTask = ((cache) => memoizeTask(cache, async function closure(target, format) {
@@ -93,7 +93,7 @@ const createClosureArgs = (entry_point, externs) => ({
     entry_point,
     third_party: true,
     warning_level: `QUIET`,
-    dependency_mode: `STRICT`,
+    dependency_mode: `PRUNE`,
     rewrite_polyfills: false,
     module_resolution: `NODE`,
     // formatting: `PRETTY_PRINT`,

js/gulp/test-task.js

@@ -17,10 +17,10 @@
 
 const del = require('del');
 const path = require('path');
+const mkdirp = require('mkdirp');
 const { argv } = require('./argv');
 const { promisify } = require('util');
 const glob = promisify(require('glob'));
-const mkdirp = promisify(require('mkdirp'));
 const rimraf = promisify(require('rimraf'));
 const child_process = require(`child_process`);
 const { memoizeTask } = require('./memoize-task');