packrat | A modular , automated backup system | Continuous Backup library

I was developing a shiny-app on a Windows machine in Rstudio. Now I need to develop it on a Linux machine and later on will need to deploy it on a server. Because of the need to run the app across platforms, I was looking into some environment control application so that I don't have to tune and reinstall the needed packages manually.

I tried to use Packrat for this purpose. I made a snapshot on my Windows machine, copied and pasted the project to my Ubuntu, reopened the project on RStudio, installed Packrat and the restore of the packages ran automatically. Then I ran into an issue that some of the packages that requires system dependencies were not installed automatically, e.g. rgdal and jqr. Therefore, I had to manually install those system dependencies manually in a terminal (it took me a while because there were about 10 of them that requires extra system dependencies).

I am wondering if there is an easier way to just automatically handle this. Later on, I will need to work with a system administer to deploy the app to the server. I am wondering if Packrat has the capability of automatically installing system dependencies on Linux machine/server. If anyone has encounter this issue before, or have other better options, please let me know!

Thank you!

I had a parser that worked well in Scala Packrat parser combinators. I would like to try something faster with the Fastparse library. However, it cannot handle left-recursion infinite loops. Is there any standard way to cope with that?

I'm new to Docker and I'm trying to understand the following setup.

I want to debug my docker container to see if it is receiving AWS credentials when running as a task in Fargate. It is suggested that I run the command:

I am using the virtualstaticvoid buildpack for heroku, but it is on the heroku-16 stack and only supports up to version 3.4.4 of R. I am after a buildpack that works on the latest stack (heroku-18) and supports at least version 3.6 of R, and has no outdated dependencies. The hmdc buildpack appears to support heroku-18 and version 3.6.0 of R, but requires packrat which is soft deprecated in favour of renv.

I worked on a historical slavery map shiny app project during 2018 period.

My shiny app whas deployed on shinyapps.io with success. You can have a look to my project here

Today, I want to upgrade my app but unfortunately the UI is not working locally (white screen, no modal window, etc...here)

I download my app bundle from Shinyapps.io to use packrat and isolated packages versions used in 2018 without sucess. It's not clear to me how to do this. In Rstudio in Packages > Packrat > Options project > local repositories field. Do I have to indicate the path of the packrat folder of the bundle?

Here are the packages used in the map

Goal: I want to install dssrip package for R 3.6.0 32-bit on Windows 10 Enterprise.

I have both 32- and 64-bit versions of R 3.6.0 installed. In RStudio (1.2.1522), I set the default version to 32-bit then create new project with packrat enable. I included the following lines in the .Rprofile file inside project folder.

I am trying to develop a sort of form through a shiny app, the idea is that the user fills a specific field (a zoning of medical-development priority) about many geographical places (french districts). Thus I think DT is the best option. I don't want to make the column editable because I want the user to choose between 4 specific values (the idea of the form is to reduce the free text to be cleaned afterward).

I started to work with the example of YiHui https://yihui.shinyapps.io/DT-radio/ As I work for french users I tried to add an option to customize language to french, but the entire logic broke, I don't know why.

Here is a reprex : (simply comment the line with language = list(... to make it work).

In order to have a better understanding of packrat I've tried to have a look at the provided implementation coming with the paper (I'm focusing on the bind):

I have been building a docker container for an R application and have continually run into an error with downloading a PDF report. The PDF report function works fine in R on a local machine, but when containerized, it throws the error below. I have tried forcing the install of specific packages, namely Knitr and Rmarkdown as other questions have mentioned, however it is still showing the same error. The file in Chrome downloads simply says "Failed - Server Problem". I have tested the download of a CSV file using the app, which works fine, therefore I believe it's an issue with generating and downloading a markdown PDF report.

I have included the build Dockerfile to assist. Any suggestions would be amazing!

Thanks!

DOCKERFILE: