github actions for R CMD check

.Rbuildignore

@@ -1,3 +1,4 @@
+^\.github
 ^\.travis\.yml$
 ^travis-tool\.sh
 ^appveyor\.yml$

.github/.gitignore

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

.github/workflows/R-CMD-check.yaml

@@ -0,0 +1,64 @@
+# 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: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macOS-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest,   r: 'release'}
+          - {os: ubuntu-latest,   r: 'oldrel-1'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-tinytex@v2
+      - run: tlmgr --version
+      - run: tlmgr update --self
+
+      - name: Install additional LaTeX packages
+        run: |
+          tlmgr install ae babel-english pdflscape pdfpages sidecap
+          tlmgr list --only-installed
+      
+      - name: Install ghostscript
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install ghostscript
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true

README.md

@@ -33,4 +33,6 @@ are still in **vegan**. **ggplot2**-based functions are in
 [![CRAN version](http://www.r-pkg.org/badges/version/vegan3d)](http://cran.rstudio.com/web/packages/vegan3d/index.html) [![](http://cranlogs.r-pkg.org/badges/grand-total/vegan3d)](http://cran.rstudio.com/web/packages/vegan3d/index.html)
 
 #### Build status
-[![Build Status](https://travis-ci.org/vegandevs/vegan3d.svg?branch=master)](https://travis-ci.org/vegandevs/vegan3d)  [![Build status](https://ci.appveyor.com/api/projects/status/hc8dbxrim2nj3c1i/branch/master)](https://ci.appveyor.com/project/vegandevs/vegan3d/branch/master)
+[![R build
+status](https://github.com/vegandevs/vegan3d/workflows/R-CMD-check/badge.svg)](https://github.com/vegandevs/vegan3d/actions)
+