resource-platform/backend/repack_v5.py

import zipfile, os

SRC = "target/resource-platform-v4.jar"
OUT = "target/resource-platform-v5.jar"
CLASSES = "build_tmp_classes"

zin = zipfile.ZipFile(SRC)
names = zin.namelist()

def is_lib(n):
    return n.startswith("BOOT-INF/lib/")

new_map = {}
for root, _, files in os.walk(CLASSES):
    for f in files:
        full = os.path.join(root, f)
        arc = "BOOT-INF/classes/" + os.path.relpath(full, CLASSES).replace(os.sep, "/")
        new_map[arc] = full

zout = zipfile.ZipFile(OUT, "w", zipfile.ZIP_DEFLATED)
zout.writestr("META-INF/MANIFEST.MF", zin.read("META-INF/MANIFEST.MF"), zipfile.ZIP_STORED)
for n in names:
    if n == "META-INF/MANIFEST.MF":
        continue
    if is_lib(n):
        zout.writestr(n, zin.read(n), zipfile.ZIP_STORED)
    elif n.startswith("BOOT-INF/classes/") and not n.endswith("/"):
        if n in new_map:
            with open(new_map[n], "rb") as fh:
                zout.writestr(n, fh.read(), zipfile.ZIP_DEFLATED)
        else:
            zout.writestr(n, zin.read(n), zipfile.ZIP_DEFLATED)
    else:
        zout.writestr(n, zin.read(n), zipfile.ZIP_DEFLATED)
zout.close()

zv = zipfile.ZipFile(OUT)
print("manifest first?", zv.namelist()[0] == "META-INF/MANIFEST.MF")
print("BusinessException replaced?", "BOOT-INF/classes/com/example/resourceplatform/common/BusinessException.class" in zv.namelist())