makeWrapper() { original=$1 wrapper=$2 ensureDir "$(dirname $wrapper)" echo "#! $SHELL -e" > $wrapper params=("$@") for ((n = 2; n < ${#params[*]}; n += 1)); do p=${params[$n]} if test "$p" = "--set"; then varName=${params[$((n + 1))]} value=${params[$((n + 2))]} n=$((n + 2)) echo "export $varName=$value" >> $wrapper fi if test "$p" = "--suffix" -o "$p" = "--prefix"; then varName=${params[$((n + 1))]} separator=${params[$((n + 2))]} value=${params[$((n + 3))]} n=$((n + 3)) if test -n "$value"; then if test "$p" = "--suffix"; then echo "export $varName=\$$varName\${$varName:+$separator}$value" >> $wrapper else echo "export $varName=$value\${$varName:+$separator}\$$varName" >> $wrapper fi fi fi if test "$p" = "--suffix-each"; then varName=${params[$((n + 1))]} separator=${params[$((n + 2))]} values=${params[$((n + 3))]} n=$((n + 3)) for value in $values; do echo "export $varName=\$$varName\${$varName:+$separator}$value" >> $wrapper done fi if test "$p" = "--suffix-contents"; then varName=${params[$((n + 1))]} separator=${params[$((n + 2))]} fileNames=${params[$((n + 3))]} n=$((n + 3)) for fileName in $fileNames; do echo "export $varName=\$$varName\${$varName:+$separator}$(cat $fileName)" >> $wrapper done fi done echo "exec \"$original\" \"\$@\"" >> $wrapper chmod +x $wrapper } addSuffix() { suffix=$1 shift for name in "$@"; do echo "$name$suffix" done } filterExisting() { for fn in "$@"; do if test -e "$fn"; then echo "$fn" fi done }