+ ungroup.tbl_cube() is needed for dplyr 1.0.3

.Rbuildignore

@@ -4,3 +4,4 @@
 ^\.github/workflows/R-CMD-check\.yaml$
 ^cran-comments\.md$
 ^CRAN-RELEASE$
+^\.github$

.github/.gitignore

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

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

@@ -1,9 +1,17 @@
+# NOTE: This workflow is overkill for most R packages
+# check-standard.yaml is likely a better choice
+# usethis::use_github_action("check-standard") will install it.
+#
+# For help debugging build failures open an issue on the RStudio community with the 'github-actions' tag.
+# https://community.rstudio.com/new-topic?category=Package%20development&tags=github-actions
 on:
   push:
     branches:
+      - main
       - master
   pull_request:
     branches:
+      - main
       - master
 
 name: R-CMD-check
@@ -18,62 +26,81 @@ jobs:
       fail-fast: false
       matrix:
         config:
-        - { os: windows-latest, r: '3.6'}
-        - { os: macOS-latest, r: '3.6'}
-        - { os: macOS-latest, r: 'devel'}
-        - { os: ubuntu-16.04, r: '3.2', cran: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
-        - { os: ubuntu-16.04, r: '3.3', cran: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
-        - { os: ubuntu-16.04, r: '3.4', cran: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
-        - { os: ubuntu-16.04, r: '3.5', cran: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
-        - { os: ubuntu-16.04, r: '3.6', cran: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
+          - {os: macOS-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: windows-latest, r: '3.6'}
+          - {os: ubuntu-16.04,   r: 'devel', rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest", http-user-agent: "R/4.0.0 (ubuntu-16.04) R (4.0.0 x86_64-pc-linux-gnu x86_64 linux-gnu) on GitHub Actions" }
+          - {os: ubuntu-16.04,   r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
+          - {os: ubuntu-16.04,   r: 'oldrel',  rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
+          - {os: ubuntu-16.04,   r: '3.5',     rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
+          - {os: ubuntu-16.04,   r: '3.4',     rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
+          - {os: ubuntu-16.04,   r: '3.3',     rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
 
     env:
       R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
-      CRAN: ${{ matrix.config.cran }}
+      RSPM: ${{ matrix.config.rspm }}
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@master
+      - uses: r-lib/actions/setup-r@v1
         with:
           r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
 
-      - uses: r-lib/actions/setup-pandoc@master
+      - uses: r-lib/actions/setup-pandoc@v1
 
       - name: Query dependencies
-        run: Rscript -e "install.packages('remotes')" -e "saveRDS(remotes::dev_package_deps(dependencies = TRUE), 'depends.Rds', version = 2)"
+        run: |
+          install.packages('remotes')
+          saveRDS(remotes::dev_package_deps(dependencies = TRUE), ".github/depends.Rds", version = 2)
+          writeLines(sprintf("R-%i.%i", getRversion()$major, getRversion()$minor), ".github/R-version")
+        shell: Rscript {0}
 
       - name: Cache R packages
         if: runner.os != 'Windows'
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
           path: ${{ env.R_LIBS_USER }}
-          key: ${{ runner.os }}-r-${{ matrix.config.r }}-${{ hashFiles('depends.Rds') }}
-          restore-keys: ${{ runner.os }}-r-${{ matrix.config.r }}-
+          key: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-${{ hashFiles('.github/depends.Rds') }}
+          restore-keys: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-
 
       - name: Install system dependencies
         if: runner.os == 'Linux'
-        env:
-          RHUB_PLATFORM: linux-x86_64-ubuntu-gcc
         run: |
-          Rscript -e "remotes::install_github('r-hub/sysreqs')"
-          sysreqs=$(Rscript -e "cat(sysreqs::sysreq_commands('DESCRIPTION'))")
-          sudo -s eval "$sysreqs"
+          while read -r cmd
+          do
+            eval sudo $cmd
+          done < <(Rscript -e 'writeLines(remotes::system_requirements("ubuntu", "16.04"))')
 
       - name: Install dependencies
-        run: Rscript -e "library(remotes)" -e "update(readRDS('depends.Rds'))" -e "remotes::install_cran('rcmdcheck')"
+        run: |
+          remotes::install_deps(dependencies = TRUE)
+          remotes::install_cran("rcmdcheck")
+        shell: Rscript {0}
+
+      - name: Session info
+        run: |
+          options(width = 100)
+          pkgs <- installed.packages()[, "Package"]
+          sessioninfo::session_info(pkgs, include_base = TRUE)
+        shell: Rscript {0}
 
       - name: Check
-        run: Rscript -e "rcmdcheck::rcmdcheck(args = '--no-manual', error_on = 'warning', check_dir = 'check')"
+        env:
+          _R_CHECK_CRAN_INCOMING_: false
+        run: rcmdcheck::rcmdcheck(args = c("--no-manual", "--as-cran"), error_on = "warning", check_dir = "check")
+        shell: Rscript {0}
+
+      - name: Show testthat output
+        if: always()
+        run: find check -name 'testthat.Rout*' -exec cat '{}' \; || true
+        shell: bash
 
       - name: Upload check results
         if: failure()
-        uses: actions/upload-artifact@master
+        uses: actions/upload-artifact@main
         with:
           name: ${{ runner.os }}-r${{ matrix.config.r }}-results
           path: check
-
-      - name: Test coverage
-        if: matrix.config.os == 'macOS-latest' && matrix.config.r == '3.6'
-        run: |
-          Rscript -e 'covr::codecov(token = "${{secrets.CODECOV_TOKEN}}")'

DESCRIPTION

@@ -12,7 +12,7 @@ Description: An implementation of a data cube extracted out of
     'dplyr' for backward compatibility.
 License: MIT + file LICENSE
 Depends: 
-    R (>= 3.2)
+    R (>= 3.3)
 Imports: 
     dplyr,
     glue,
@@ -27,6 +27,6 @@ Suggests:
 Encoding: UTF-8
 LazyData: true
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.0.2
+RoxygenNote: 7.1.1
 URL: https://github.com/hadley/cubelyr
 BugReports: https://github.com/hadley/cubelyr/issues

NAMESPACE

@@ -18,6 +18,7 @@ S3method(same_src,tbl_cube)
 S3method(select,tbl_cube)
 S3method(summarise,tbl_cube)
 S3method(tbl_vars,tbl_cube)
+S3method(ungroup,tbl_cube)
 export(as.tbl_cube)
 export(tbl_cube)
 import(rlang)
@@ -31,6 +32,7 @@ importFrom(dplyr,same_src)
 importFrom(dplyr,select)
 importFrom(dplyr,summarise)
 importFrom(dplyr,tbl_vars)
+importFrom(dplyr,ungroup)
 importFrom(glue,glue)
 importFrom(purrr,map)
 importFrom(purrr,map2_int)

R/cube.R

@@ -355,6 +355,13 @@ find_index <- function(x, names) {
   unlist(lapply(x[-1], find_index, names = names))
 }
 
+#' @importFrom dplyr ungroup
+#' @export
+ungroup.tbl_cube <- function(x, ...) {
+  x$groups <- NULL
+  x
+}
+
 #' @importFrom dplyr group_by
 #' @export
 group_by.tbl_cube <- function(.data, ..., .drop = FALSE) {

README.md

@@ -1,6 +1,7 @@
 # cubelyr
 
 <!-- badges: start -->
+[![R-CMD-check](https://github.com/hadley/cubelyr/workflows/R-CMD-check/badge.svg)](https://github.com/hadley/cubelyr/actions)
 <!-- badges: end -->
 
 cubelyr pulls the experimental `tbl_cube()` out of dplyr, so you can continue to use it if you want.