55 lines
1.4 KiB
Markdown
55 lines
1.4 KiB
Markdown
R packages
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==========
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## Installation
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Define an environment for R that contains all the libraries that you'd like to
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use by adding the following snippet to your $HOME/.nixpkgs/config.nix file:
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```nix
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{
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packageOverrides = super: let self = super.pkgs; in
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{
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rEnv = super.rWrapper.override {
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packages = with self.rPackages; [
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devtools
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ggplot2
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reshape2
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yaml
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optparse
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];
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};
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};
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}
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```
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Then you can use `nix-env -f "<nixpkgs>" -iA rEnv` to install it into your user
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profile. The set of available libraries can be discovered by running the
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command `nix-env -f "<nixpkgs>" -qaP -A rPackages`. The first column from that
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output is the name that has to be passed to rWrapper in the code snipped above.
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## Updating the package set
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```bash
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Rscript generate-r-packages.R cran > cran-packages.nix.new
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mv cran-packages.nix.new cran-packages.nix
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Rscript generate-r-packages.R bioc > bioc-packages.nix.new
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mv bioc-packages.nix.new bioc-packages.nix
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Rscript generate-r-packages.R irkernel > irkernel-packages.nix.new
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mv irkernel-packages.nix.new irkernel-packages.nix
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```
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`generate-r-packages.R <repo>` reads `<repo>-packages.nix`, therefor the renaming.
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## Testing if the Nix-expression could be evaluated
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```bash
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nix-build test-evaluation.nix --dry-run
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```
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If this exits fine, the expression is ok. If not, you have to edit `default.nix`
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