Merge pull request #13 from wch/gh-update

Author: wch

.Rbuildignore

@@ -0,0 +1,2 @@
+^.*\.Rproj$
+^\.Rproj\.user$

.github/workflows/build-book.yaml

@@ -1,13 +1,14 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
 on:
   push:
-    branches:
-      - master
+    branches: [main, master]
   pull_request:
-    branches:
-      - master
+    branches: [main, master]
   schedule:
-    # run every day at 11 PM
-    - cron: '0 23 * * *'
+    # run every day at 11:05 PM Pacific
+    - cron: '5 7 * * *'
+  workflow_dispatch:
 
 name: build-book
 
@@ -18,33 +19,15 @@ jobs:
   build:
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
-    runs-on: macOS-latest
+    runs-on: ubuntu-latest
     steps:
-      - name: Checkout repo
-        uses: actions/checkout@master
+      - uses: actions/checkout@v2
 
-      - name: Setup R
-        uses: r-lib/actions/setup-r@master
-
-      - name: Setup pandoc
-        uses: r-lib/actions/setup-pandoc@master
-
-      - name: Cache R packages
-        uses: actions/cache@v1
+      - uses: r-lib/actions/setup-r@v2
         with:
-          path: ${{ env.R_LIBS_USER }}
-          key: r-5-${{ hashFiles('DESCRIPTION') }}
-          restore-keys: r-5-
-
-      - name: Install pak
-        run: |
-          install.packages("pak", repos = "https://r-lib.github.io/p/pak/dev/")
-        shell: Rscript {0}
+          use-public-rspm: true
 
-      - name: Install dependencies
-        run: |
-          pak::local_install_dev_deps()
-        shell: Rscript {0}
+      - uses: r-lib/actions/setup-r-dependencies@v2
 
       - name: Cache bookdown results
         uses: actions/cache@v1