tools-make/mkinstalldirs

#!/bin/sh
# Make directory hierarchy. 
# Written by Noah Friedman <friedman@prep.ai.mit.edu>
# Public domain.

defaultIFS=' 	
'
IFS="${IFS-${defaultIFS}}"

errstatus=0
# Test mkdir -p
mkdir -p .test-mkdir || errstatus=$?
rmdir .test-mkdir
if test $errstatus != 0 -o -d "-p"; then
  if test -d "-p"; then
    rmdir -p
  fi
  MKDIR="mkdir"
else
  MKDIR="mkdir -p"
fi

for file in ${1+"$@"} ; do 
   oIFS="${IFS}"
   # Some sh's can't handle IFS=/ for some reason.
   IFS='%'
   set - `echo ${file} | sed -e 's@/@%@g' -e 's@^%@/@'`
   IFS="${oIFS}"

   pathcomp=''

   for d in ${1+"$@"} ; do
     pathcomp="${pathcomp}${d}"

     if test ! -d "${pathcomp}"; then
        echo "$MKDIR $pathcomp" 1>&2
        $MKDIR "${pathcomp}" || errstatus=$?
     fi

     pathcomp="${pathcomp}/"
   done
done

exit $errstatus

# eof