in xar/xar_builder.py [0:0]
def _build_xar_header(self, xar_dependencies):
"""Make the XAR headers."""
self._ensure_frozen()
xar_header = {}
xar_header["DEPENDENCIES"] = " ".join(
[os.path.basename(v[0]) for v in xar_dependencies]
)
if self._mount_root:
xar_header["MOUNT_ROOT"] = self._mount_root
if self._executable is not None:
xar_header["XAREXEC_TARGET"] = self._executable
return xar_header