ci: adopt reusable workflows from `named-data/actions`

Switch source archive (tarball) to xz compression and
mention using gerrit for code review in the README

Change-Id: Ie69de065311737f6fe48976fbab5f896f3960e06
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f328d39..a9f36bb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,65 +1,12 @@
 name: CI
 on:
   push:
-    paths-ignore:
-      - 'docs/**'
-      - '*.md'
-      - '.mailmap'
   workflow_dispatch:
 
-permissions:
-  contents: read
+permissions: {}
 
 jobs:
-  linux:
-    name: ${{ matrix.compiler }} on ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-20.04]
-        compiler: [g++-7, g++-8, g++-9, g++-10,
-                   clang++-7, clang++-8, clang++-9, clang++-10, clang++-11, clang++-12]
-        include:
-          - os: ubuntu-22.04
-            compiler: g++-11
-          - os: ubuntu-22.04
-            compiler: g++-12
-          - os: ubuntu-22.04
-            compiler: clang++-13
-          - os: ubuntu-22.04
-            compiler: clang++-14
-    env:
-      CXX: ${{ matrix.compiler }}
-    steps:
-      - name: Install C++ compiler
-        run: |
-          sudo apt-get -qy install ${CXX/clang++/clang}
-          ${CXX} --version
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and test
-        run: ./.jenkins
-
-  macos:
-    name: Xcode ${{ matrix.xcode }} on ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-11]
-        xcode: ['12.4', '12.5', '13.2']
-        include:
-          - os: macos-12
-            xcode: '13.4'
-          - os: macos-12
-            xcode: '14.2'
-    steps:
-      - name: Set up Xcode
-        uses: maxim-lobanov/setup-xcode@v1
-        with:
-          xcode-version: ${{ matrix.xcode }}
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and test
-        run: ./.jenkins
+  Ubuntu:
+    uses: named-data/actions/.github/workflows/jenkins-script-ubuntu.yml@v1
+  macOS:
+    uses: named-data/actions/.github/workflows/jenkins-script-macos.yml@v1
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index fd27188..3e7503c 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -1,33 +1,19 @@
 name: Docs
 on:
   push:
-    paths-ignore:
-      - '*.md'
-      - '.mailmap'
   workflow_dispatch:
+    inputs:
+      skip-deploy:
+        description: 'Skip deployment?'
+        required: true
+        type: boolean
 
-permissions:
-  contents: read
+permissions: {}
 
 jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, ubuntu-latest]
-    env:
-      JOB_NAME: Docs
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Install dependencies
-        run: |
-          find .jenkins.d/ -type f -name '[1-9]*.sh' -exec chmod -x '{}' +
-          ./.jenkins
-      - name: Build documentation
-        run: |
-          pybindir=$(python3 -c 'import sysconfig; print(sysconfig.get_path("scripts", "posix_user"))')
-          export PATH="${pybindir}${PATH:+:}${PATH}"
-          ./waf --color=yes configure
-          ./waf --color=yes docs
+  html:
+    uses: named-data/actions/.github/workflows/docs-html.yml@v1
+    with:
+      # Deploy only the master branch and release tags
+      deploy: ${{ !inputs.skip-deploy && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/0.')) }}
+    secrets: inherit