Yun Zheng Hu wrote:

When realpath or readlink is not available it will fallback to a realpath implementation in bash. An extra check is also added for "readlink -f", because not all platforms support the -f flag.

The readlink implementation in bash is borrowed from Debian's dpkg tools.

Signed-off-by: Yun Zheng Hu --- scripts/repo-add.sh.in | 23 ++++++++++++++++++++--- 1 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/scripts/repo-add.sh.in b/scripts/repo-add.sh.in index c89e2a5..ea16731 100644 --- a/scripts/repo-add.sh.in +++ b/scripts/repo-add.sh.in @@ -297,11 +297,28 @@ fi # check for and store the name of a realpath-like program if [ $(type -t realpath) ]; then realpath='realpath' -elif [ $(type -t readlink) ]; then +elif [ $(type -t readlink) -a "$(readlink -f . 2>/dev/null)" != "" ]; then realpath='readlink -f' else - error "$(gettext "Either realpath or readlink are required by repo-add.")" - exit 1 # $E_MISSING_PROGRAM + realpath_bash() + { + fname=${1%/} # strips trailing '/' + while [ -L "$fname" ]; do + oldfname="$fname" + fname="$(command ls -l $fname)" + fname="${fname#*\> }" + if [ "$fname" = . ] ; then + fname="$(dirname $oldfname)" + elif echo $fname | grep -vq '^/' - ; then + fname="$(dirname $oldfname)/$fname" + fi + done + pushd $(dirname $fname) > /dev/null + fname=$(pwd -P)/$(basename $fname) + popd > /dev/null + echo $fname + } + realpath=realpath_bash fi

# main routine

I haven't looked at this in detail yet, but if this solution is more portable and has no feature loss, why not use it by default? Allan