List all libraries a Conda Forge R library links against

list_r_pkg_linked_libs.sh

#!/usr/bin/env bash -l

## PARAMS
## file should have one "[name]=[version]=[build]" per line
FILE_PKG_BUILDS="r-tiff.cf_pkgs.txt"

##
DYLIB_LOC="lib/R/library/tiff/libs"

tmp=$(mktemp -d)

## create tmp env
conda create -qyp ${tmp}/0

TMP_TAR="${tmp}/tar"

while read build; do
    echo "Processing ${build}"
    FILE="${tmp}/${build//[=]/-}.tar.bz2"
    rm -rf ${TMP_TAR} && mkdir -p ${TMP_TAR}

    ## download tarball
    CONDA_PKGS_DIRS=${tmp} mamba install -p ${tmp}/0 \
                   --override-channels -c conda-forge -C \
                   -d --download-only --json --no-deps ${build} |\
	grep '"url"' | grep -oE 'https[^"]+' |\
	xargs wget -qcO ${FILE}

    ## extract dylib file
    DYLIB_FILE=$(tar -tf ${FILE} ${DYLIB_LOC})
    tar -xf ${FILE} -C ${TMP_TAR} ${DYLIB_FILE}

    ## analyze dylib
    otool -L ${TMP_TAR}/${DYLIB_FILE}
done < ${FILE_PKG_BUILDS}

## remove environment
conda env remove -qyp ${tmp}/0