added actions

.Rbuildignore

@@ -5,3 +5,4 @@
 ^_pkgdown\.yml$
 ^docs$
 ^pkgdown$
+^\.github$

.github/.gitignore

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

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

@@ -0,0 +1,29 @@
+# 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: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2

README.Rmd

@@ -21,6 +21,7 @@ devtools::load_all()
 <!-- badges: start -->
 
 [![CRAN status](https://www.r-pkg.org/badges/version/tidier)](https://CRAN.R-project.org/package=tidier)
+[![R-CMD-check](https://github.com/talegari/tidier/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/talegari/tidier/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
 `tidier` package provides '[Apache Spark](https://spark.apache.org/)' style window aggregation for R dataframes via '[mutate](https://dplyr.tidyverse.org/reference/mutate.html)' in '[dplyr](https://dplyr.tidyverse.org/index.html)' flavour.

README.md

@@ -7,6 +7,7 @@
 
 [![CRAN
 status](https://www.r-pkg.org/badges/version/tidier)](https://CRAN.R-project.org/package=tidier)
+[![R-CMD-check](https://github.com/talegari/tidier/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/talegari/tidier/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
 `tidier` package provides ‘[Apache Spark](https://spark.apache.org/)’
@@ -53,14 +54,14 @@ airquality |>
 
 ## Features
 
--   `mutate` supports
-    -   `.by` (group by),
-    -   `.order_by` (order by),
-    -   `.frame` (endpoints of window frame),
-    -   `.index` (identify index column like date column),
-    -   `.complete` (whether to compute over incomplete window).
--   `mutate` automatically uses a future backend (via
-    [`furrr`](https://furrr.futureverse.org/)).
+- `mutate` supports
+  - `.by` (group by),
+  - `.order_by` (order by),
+  - `.frame` (endpoints of window frame),
+  - `.index` (identify index column like date column),
+  - `.complete` (whether to compute over incomplete window).
+- `mutate` automatically uses a future backend (via
+  [`furrr`](https://furrr.futureverse.org/)).
 
 ## Motivation
 
@@ -85,8 +86,8 @@ and
 
 ## Installation
 
--   dev: `remotes::install_github("talegari/tidier")`
--   cran: `install.packages("tidier")`
+- dev: `remotes::install_github("talegari/tidier")`
+- cran: `install.packages("tidier")`
 
 ## Acknowledgements