Switch from travis to github actions for CI

This also:
- adds "files" to package.json which removes a lot of dev files
  from the published package
- adds a package-lock.json file for 'npm ci' usage

.github/workflows/check.yml

@@ -0,0 +1,12 @@
+name: Check Lint/Style
+on: [push, pull_request]
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '12.x'
+    - run: npm ci
+    - run: npm run check

.github/workflows/test.yml

@@ -0,0 +1,57 @@
+name: Test
+
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+    - '*.md'
+  pull_request:
+    - 'docs/**'
+    - '*.md'
+
+jobs:
+  # Test once on every (available) plat, using LTS node version
+  # (https://nodejs.org/en/about/releases/).
+  test-plats:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '12.x'
+    - run: npm ci
+    - run: npm test
+
+  # Test once for every supported node version (don't repeat the LTS
+  # node version from the previous step). Only test on one
+  # platform to not overkill the number of builds.
+  test-vers:
+    strategy:
+      matrix:
+        node: ['8.x', '10.x', '14.x']
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node }}
+    - run: npm ci
+    - run: npm test
+
+  # Test older versions separately because really old node/npm don't support
+  # 'npm ci'.
+  test-old-vers:
+    strategy:
+      matrix:
+        node: ['0.10.x', '4.x', '6.x']
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node }}
+    - run: npm install
+    - run: npm test

Makefile

@@ -22,8 +22,6 @@ NODEOPT ?= $(HOME)/opt
 #---- Files
 
 JSSTYLE_FILES := $(shell find lib test tools examples -name "*.js") bin/bunyan
-# All test files *except* dtrace.test.js.
-NON_DTRACE_TEST_FILES := $(shell ls -1 test/*.test.js | grep -v dtrace | xargs)
 
 
 #---- Targets
@@ -95,8 +93,8 @@ test: $(NODEUNIT)
 	test -z "$(DTRACE_UP_IN_HERE)" || test -n "$(SKIP_DTRACE)" || \
 		(node -e 'require("dtrace-provider").createDTraceProvider("isthisthingon")' && \
 		echo "\nNote: Use 'SKIP_DTRACE=1 make test' to skip parts of the test suite that require root." && \
-		$(SUDO) $(NODEUNIT) test/dtrace.test.js)
-	$(NODEUNIT) $(NON_DTRACE_TEST_FILES)
+		$(SUDO) $(NODEUNIT) test/dtrace/*.test.js)
+	$(NODEUNIT) test/*.test.js
 
 # Test with all node supported versions (presumes install locations I use on
 # my machine -- "~/opt/node-VER"):