move deploy to github actions

Author: egeulgen

.github/.gitignore

@@ -0,0 +1 @@
+*.html

.github/workflows/pkgdown.yaml

@@ -0,0 +1,42 @@
+on:
+  push:
+    branches: master
+
+name: pkgdown
+
+jobs:
+  pkgdown:
+    runs-on: macOS-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: r-lib/actions/setup-r@master
+
+      - uses: r-lib/actions/setup-pandoc@master
+
+      - name: Query dependencies
+        run: |
+          install.packages('remotes')
+          saveRDS(remotes::dev_package_deps(dependencies = TRUE), "depends.Rds", version = 2)
+        shell: Rscript {0}
+
+      - name: Cache R packages
+        uses: actions/cache@v1
+        with:
+          path: ${{ env.R_LIBS_USER }}
+          key: macOS-r-3.6-${{ hashFiles('depends.Rds') }}
+          restore-keys: macOS-r-3.6-
+
+      - name: Install dependencies
+        run: |
+          install.packages("remotes")
+          remotes::install_deps(dependencies = TRUE)
+          remotes::install_dev("pkgdown")
+        shell: Rscript {0}
+
+      - name: Install package
+        run: R CMD INSTALL .
+
+      - name: Deploy package
+        run: pkgdown::deploy_to_branch(new_process = FALSE)
+        shell: Rscript {0}

.travis.yml

@@ -11,13 +11,6 @@ addons:
       - libudunits2-dev
       - libmagick++-dev
 
-# for pkgdown
-before_cache: Rscript -e 'remotes::install_cran("pkgdown")'
-deploy:
-    provider: script
-    script: Rscript -e 'pkgdown::deploy_site_github(ssh_id = Sys.getenv("TRAVIS_DEPLOY_KEY", ""))'
-    skip_cleanup: true
-
 # for codecov
 r_packages:
   - covr