[r] test first-time R package installation (#687)

Adding a Dockerfile and script to test our instructions for installing `cellxgene.census` and `tiledbsoma`. For now it's to run manually.

Co-authored-by: pablo-gar <[email protected]>

api/r/cellxgene.census/tests/installation/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:22.04
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
+  automake \
+  build-essential \
+  cmake \
+  git \
+  libcurl4-openssl-dev \
+  libssl-dev \
+  libxml2-dev \
+  r-base \
+  zlib1g-dev
+ADD install.R /tmp
+RUN Rscript /tmp/install.R

api/r/cellxgene.census/tests/installation/README.md

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+This Dockerfile & script are used to test the installation instructions for our `cellxgene.census` R package in a clean environment (in contrast to developer machines which tend to have a lot of unrelated packages and other miscellaneous state). Simply:
+
+```
+docker build -t cellxgene_census_r_install_test api/r/cellxgene.census/tests/installation
+```
+
+And verify successful completion, which unfortunately may take 30+ minutes building all the dependencies.
+
+The [install.R](install.R) script should be kept consistent with the user-facing installation instructions in the [package readme](../../README.md).

api/r/cellxgene.census/tests/installation/install.R

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+options(error = function() {
+  q("no", status = 1, runLast = FALSE)
+})
+Sys.setenv(MAKE = "make -j8")
+
+#######################################################################################
+
+install.packages(
+  "tiledb",
+  version = "0.20.3",
+  repos = c("https://tiledb-inc.r-universe.dev", "https://cloud.r-project.org")
+)
+
+install.packages(
+  "cellxgene.census",
+  repos = c("https://chanzuckerberg.r-universe.dev", "https://cloud.r-project.org")
+)
+
+tiledbsoma::show_package_versions()
+print(as.data.frame(
+  cellxgene.census::open_soma()$get("census_info")$get("summary")$read()$concat()
+))