Explicit package versions install in rscipts.Dockerfile?

[rsuchecki]

May have to revert to earlier syntax of the dockerfiles/rscirpts.Dockerfile

e.g.

RUN R -e "install.packages('jsonlite', version = '1.5', repos = 'https://cran.csiro.au')"
# OR
RUN R -e "install.packages(c('jsonlite', 'RColorBrewer'), version = c('1.5','1.1-2'), repos = 'https://cran.csiro.au')"

as littler does not support explicit version install (?)

Questions:

• would that be sufficient for capturing versions?
• is it worth the effort given that a version is captured in the container? I think it is.

Issue on hold due to limited and late stage use of RScripts