#!/bin/sh

# Add default JVM options here. You can also use JAVA_OPTS and KOBWEB_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Dkobweb.version={pkgver}"'

# Add all dependency libraries to the CLASSPATH

for name in /usr/share/java/kobweb/*.jar ; do
  CLASSPATH=$CLASSPATH:$name
done


# Collect all arguments for the java command;
#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $KOBWEB_OPTS can contain fragments of
#     shell script including quotes and variable substitutions, so put them in
#     double quotes to make sure that they get re-expanded; and
#   * put everything else in single quotes, so that it's not re-expanded.

set -- \
        -classpath "$CLASSPATH" \
        MainKt \
        "$@"

# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
#   set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.

eval "set -- $(
        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $KOBWEB_OPTS" |
        xargs -n1 |
        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
        tr '\n' ' '
    )" '"$@"'

exec /usr/bin/java "$@"