Fix language:r hook installation when initiated in RStudio #3389
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otherwise, installing the hooks when RENV_USER env variable is set (e.g. in RStudio with renv project) will result in executing the installation script in the wrong renv
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Closes #3385. The bug is that in
install_environment(), the env patch was not applied in the following snippet:The existing
_execute_vanilla_r_code_as_script()abstracting awaywas only suitable to execute R code after the environment has been installed and was for that reason not used when the renv environment was set up initially.
Hence, the approach I took was to factor out
_execute_r()that does 1. and 2. and can be parametrised as far as CLI options passed to R go, so it can be used to create the environment itself (_execute_vanilla_r()) and also later to run R code in it (_execute_r_in_renv(), previously named_execute_vanilla_r_code_as_script()).