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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
}
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