Pushing r-eulerr onto anaconda using conda-skeleton / conda-build / anaconda-upload

CRAN package eulerr is not available on anaconda as of 2018/01/19. I have other blogs that include notes on how to upload packages to anaconda, but they're a bit scruffy. Here's another neater version.

In my root conda environment I first updated conda and python
conda update conda
conda update python

and then did:

cd ~/tools/conda_recipes
conda skeleton cran eulerr
conda build --R=3.3.2 r-eulerr

# dependency r-rcppde is missing:

conda skeleton cran RcppDE
conda build --R=3.3.2 r-rcppde

# Failed with warning:
/usr/bin/ld: cannot find -lgfortran

# Installed gfortran (but somewhat dumbfounded that it wasn't already present)
sudo apt-get install gfortran

conda build --R=3.3.2 r-rcppde

anaconda upload ~/tools/miniconda3/conda-bld/linux-64/r-rcppde-0.1.5-r332hf484d3e_0.tar.bz2

conda build --R=3.3.2 r-eulerr

# Failed
Error: package ‘Rcpp’ 0.12.8 was found, but >= 0.12.12 is required by ‘.’

# Changed meta.yaml for r-eulerr to say
host:
  - r-rcpp >=0.12.12
  ...
run:
  - r-rcpp >=0.12.12
  ...

conda build --R=3.3.2 r-eulerr

anaconda upload ~/tools/miniconda3/conda-bld/linux-64/r-eulerr-3.1.0-r332hf484d3e_0.tar.bz2

DONE!