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scripts/wrapper.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Nov 29 00:26:39 2010 +0100 (2010-11-29)
changeset 2205 62b3f52315b3
parent 1434 7e7290acccc1
permissions -rw-r--r--
scripts: recover on partially downloaded files

Download to an intermediate temp file, and rename it to its final
name only of download succeeds.

This catches both a failed download, and also the case where the user
interrupts the download. Thus, the a partial download gets discarded,
and we no longer try to extract a partial tarball, which we would
previously have done.

Suggested by Thomas PETAZZONI.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 #!/bin/sh

     2 

     3 # this wrapper will not work under BSD systems or others

     4 # not containig the GNU readlink.

     5 # Under those, wrapper.c will forcibly be used

     6 # regardless of the config file setting.

     7 

     8 canonicalizedname=$(readlink -nm "${0}")

     9 dirname="$(dirname "${canonicalizedname}")"

    10 basename="$(basename "${canonicalizedname}")"

    11 

    12 ld_lib_path="$(dirname "${dirname}")/lib"

    13 

    14 case ":${LD_LIBRARY_PATH}:" in

    15     *":${ld_lib_path}:"*)   ;;

    16     *)  LD_LIBRARY_PATH="${ld_lib_path}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}";;

    17 esac

    18 

    19 export LD_LIBRARY_PATH

    20 exec "${dirname}/.${basename}" "$@"
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