#!/bin/sh
# Assemble the bundled Java runtime (lib/) from an MPLAB X installation.
#
# Usage: ./assemble-lib.sh <path-to-mplabx-vX.YY>
# e.g.   ./assemble-lib.sh /opt/microchip/mplabx/v6.35
#
# Copies every jar from the mdbcore / mplablibs / mplab_ipe / platform
# clusters except those listed in jars.exclude.
#
# IMPORTANT: the directory structure *under* mplab_platform/ is preserved.
# MPLAB's jars rely on relative Class-Path manifest entries
# (e.g. "ext/crownking.edc.jar", "../mplablibs/modules/ext/...") and the
# NetBeans module locator derives cluster locations from those paths, so a
# flat jar dump does not work.

set -eu

MPLABX="${1:?usage: assemble-lib.sh <path-to-mplabx-vX.YY>}"
PLATFORM="$MPLABX/mplab_platform"
HERE="$(cd -P -- "$(dirname -- "$0")" && pwd)"
LIB="$HERE/lib"

[ -d "$PLATFORM" ] || { echo "not an MPLAB X install: $MPLABX" >&2; exit 1; }

EXCLUDE="$(sed 's/#.*//' "$HERE/jars.exclude" | tr -d ' \t' | grep -v '^$' | sort -u)"

rm -rf "$LIB"
mkdir -p "$LIB"

copied=0
skipped=0
# Copy jars (respecting the exclude list) and every non-jar resource file.
# Non-jar resources matter: e.g. mplablibs/modules/ext/mplabinfo.properties
# carries the MPLAB X version that pack/device resolution requires, and it is
# located as a sibling of mplabinfo.jar via the code-source path.
#
# NUL-safe: some resources (readmes) contain spaces in their names.
find "$PLATFORM/mdbcore" "$PLATFORM/mplablibs" "$PLATFORM/mplab_ipe" \
     "$PLATFORM/platform" -type f -print0 \
| sort -z \
| while IFS= read -r -d '' f; do
    base="$(basename "$f")"
    case "$f" in
        *.jar)
            if echo "$EXCLUDE" | grep -qxF "$base"; then
                skipped=$((skipped + 1))
                continue
            fi
            ;;
    esac

    # Preserve path relative to mplab_platform/ (e.g. mplablibs/modules/ext/...).
    rel="${f#"$PLATFORM"/}"
    mkdir -p "$LIB/$(dirname "$rel")"
    cp "$f" "$LIB/$rel"
    copied=$((copied + 1))
done

copied=$(find "$LIB" -type f | wc -l | tr -d ' ')
jars=$(find "$LIB" -name '*.jar' | wc -l | tr -d ' ')
printf 'lib/: %d files (%d jars), %s total\n' \
    "$copied" "$jars" "$(du -sh "$LIB" | cut -f1)"