pkensche at cmbi.ru.nl
2009-Oct-15 13:40 UTC
[Rd] let R and Rscript infer paths from their own location (PR#14007)
Full_Name: Philip R. Kensche Version: 2.9.1 OS: Linux Submission from: (NULL) (131.174.146.252) Use case: Run R scripts using bin/Rscript or "bin/R --no-restore --file=<script-file> --args <args>" in a heterogeneous computing grid in which it is not possible to predict the actual installation directory of the R binaries. Problem: The script bin/R and the wrapper bin/Rscript contain hardcoded paths. Thus, currently, it is not possible to install R in a local directory tree, install packages and finally run this installation on a heterogeneous computing grid. The configure option --disable-rpath doesn't have any influence on whether hardcoded paths are used in these programs. Proposed solution: Let bin/R and bin/Rscript infer their own positions using something like $(dirname $(readlink -f "$0")) (for bin/R) and set the other paths (such as R_HOME_DIR in bin/R) relative to these. The start of bin/R could look something like this: ---- if test -z "${R_HOME_DIR}"; then R_HOME_DIR=$(dirname $(readlink -f "$0"))/../lib/R fi case "linux-gnu" in linux*) run_arch=`uname -m` case "$run_arch" in x86_64|mips64|ppc64|powerpc64|sparc64|s390x) libnn=lib64 libnn_fallback=lib ;; *) libnn=lib libnn_fallback=lib64 ;; esac if [ -x "${R_HOME_DIR}/../../${libnn}/R/bin/exec/R" ]; then R_HOME_DIR="${R_HOME_DIR}/../../${libnn}/R" elif [ -x "${R_HOME_DIR}/../../${libnn_fallback}/R/bin/exec/R" ]; then R_HOME_DIR="${R_HOME_DIR}/../../${libnn_fallback}/R" ## else -- leave alone (might be a sub-arch) fi ;; esac if test -n "${R_HOME}" && \ test "${R_HOME}" != "${R_HOME_DIR}"; then echo "WARNING: ignoring environment value of R_HOME" fi R_HOME="${R_HOME_DIR}" export R_HOME R_SHARE_DIR="${R_HOME}/share" export R_SHARE_DIR R_INCLUDE_DIR="${R_HOME}/include" export R_INCLUDE_DIR R_DOC_DIR="${R_HOME}/doc" export R_DOC_DIR ... ---- There are some things that I don't understand about the original script, though. Why does it start with a test that always succeeds? Why does it ignore R_HOME? I didn't change this stuff. In any case, the changes above did the job for me. Greetings, Philip
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