thisisnic commented on a change in pull request #11521:
URL: https://github.com/apache/arrow/pull/11521#discussion_r762046836
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File path: r/vignettes/install.Rmd
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@@ -7,49 +7,201 @@ vignette: >
%\VignetteEncoding{UTF-8}
---
-On macOS and Windows, when you `install.packages("arrow")`,
-you get a binary package that contains Arrow’s C++ dependencies along with it.
-On Linux, `install.packages()` retrieves a source package that has to be
compiled locally,
-and C++ dependencies need to be resolved as well.
+The Apache Arrow project is implemented in multiple languages, and the R
package depends on the Arrow C++ library (referred to from here on as
libarrow). This means that when you install arrow, you need both the R and C++
versions. If you install arrow from CRAN on a machine running Windows or
MacOS, when you call `install.packages("arrow")`, a precompiled binary
containing both the R package and libarrow will be downloaded. However, CRAN
does not host R package binaries for Linux, and so you must choose from one of
the alternative approaches.
-On linux we recommend one of the following for the quickest and easiest
-installation:
+This vignette outlines the recommend approaches to installing arrow on Linux,
starting from the simplest and least customisable to the most complex but with
more flexbility to customise your installation.
-* Set the environment variable `NOT_CRAN=true` before installing, which will
both
- check for compatible Apache binaries and use those and if those aren't
available
- set a more fully-featured build than default.
-* Using [RStudio's public package
manager](https://packagemanager.rstudio.com/client/#/)
- which includes pre-built binaries
+The intended audience for this document is arrow R package _users_ on Linux,
and not Arrow _developers_.
+If you're contributing to the Arrow project, see `vignette("developing",
package = "arrow") for
+resources to help you on set up your development environment. You can also
find
+a more detailed discussion of the code run during the installation process in
the
+[developers' installation
docs](https://arrow.apache.org/docs/r/articles/developers/install_details.html)
-Our goal is to make `install.packages("arrow")` "just work" for as many Linux
distributions,
-versions, and configurations as possible with the above options.
+> Having trouble installing arrow? See the "Troubleshooting" section below.
-This rest of this document describes how it works and the options for
fine-tuning Linux installation.
-The intended audience for this document is `arrow` R package users on Linux,
not Arrow developers.
-If you're contributing to the Arrow project, see `vignette("developing",
package = "arrow") for guidance on setting up your development environment.
+# Basic installation
+
+## Method 1 - Installation with a precompiled libarrow binary
+
+
+As mentioned above, on macOS and Windows, when you run
`install.packages("arrow")`, and install arrow from CRAN, you get an R binary
package that contains a precompiled version of libarrow, though CRAN does not
host binary packages for Linux. This means that the default behaviour when you
run `install.packages()` on Linux is to retrieve the source version of the R
package that has to be compiled locally, including building libarrow from
source. See method 2 below for details of this.
+
+For a faster installation, we recommend that you instead use one of the
methods below for installing arrow with a precompiled libarrow binary.
+
+### Method 1a - Binary R package containing libarrow binary via RSPM/conda
+
+```{r, echo=FALSE, out.width="30%"}
+knitr::include_graphics("./img/r_binary_libarrow_binary.png")
+```
+
+If you want a quicker installation process, and by default a more
fully-featured build, you could install arrow from [RStudio's public package
manager](https://packagemanager.rstudio.com/client/#/), which hosts binaries
for both Windows and Linux.
+
Review comment:
Great suggestion - done!
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