inherit package

python package_tar_fn () {
	import os
	from bb import data
	fn = os.path.join(bb.data.getVar('DEPLOY_DIR_TAR', d, True), bb.data.expand('${PKG}-${PV}-${PR}${DISTRO_PR}.tar.gz', d, True))
	bb.data.setVar('PKGFN', fn, d)
}

python package_tar_install () {
	import os, sys
	pkg = bb.data.getVar('PKG', d, 1)
	pkgfn = bb.data.getVar('PKGFN', d, 1)
	rootfs = bb.data.getVar('IMAGE_ROOTFS', d, 1)

	if None in (pkg,pkgfn,rootfs):
		bb.error("missing variables (one or more of PKG, PKGFN, IMAGEROOTFS)")
		raise bb.build.FuncFailed
	try:
		bb.mkdirhier(rootfs)
		os.chdir(rootfs)
	except OSError:
		(type, value, traceback) = sys.exc_info()
		print value
		raise bb.build.FuncFailed

	if not os.access(pkgfn, os.R_OK):
		bb.debug(1, "%s does not exist, skipping" % pkgfn)
		raise bb.build.FuncFailed

	ret = os.system('zcat %s | tar -xf -' % pkgfn)
	if ret != 0:
		raise bb.build.FuncFailed
}

python do_package_tar () {
	workdir = bb.data.getVar('WORKDIR', d, 1)
	if not workdir:
		bb.error("WORKDIR not defined, unable to package")
		return

	import os # path manipulations
	outdir = bb.data.getVar('DEPLOY_DIR_TAR', d, 1)
	if not outdir:
		bb.error("DEPLOY_DIR_TAR not defined, unable to package")
		return
	bb.mkdirhier(outdir)

	dvar = bb.data.getVar('D', d, 1)
	if not dvar:
		bb.error("D not defined, unable to package")
		return
	bb.mkdirhier(dvar)

	packages = bb.data.getVar('PACKAGES', d, 1)
	if not packages:
		bb.debug(1, "PACKAGES not defined, nothing to package")
		return

	for pkg in packages.split():
		localdata = bb.data.createCopy(d)
		root = "%s/install/%s" % (workdir, pkg)

		bb.data.setVar('ROOT', '', localdata)
		bb.data.setVar('ROOT_%s' % pkg, root, localdata)
		bb.data.setVar('PKG', pkg, localdata)

		overrides = bb.data.getVar('OVERRIDES', localdata)
		if not overrides:
			raise bb.build.FuncFailed('OVERRIDES not defined')
		overrides = bb.data.expand(overrides, localdata)
		bb.data.setVar('OVERRIDES', '%s:%s' % (overrides, pkg), localdata)

		bb.data.update_data(localdata)

		root = bb.data.getVar('ROOT', localdata)
		bb.mkdirhier(root)
		basedir = os.path.dirname(root)
		pkgoutdir = outdir
		bb.mkdirhier(pkgoutdir)
		bb.build.exec_func('package_tar_fn', localdata)
		tarfn = bb.data.getVar('PKGFN', localdata, 1)
		os.chdir(root)
		from glob import glob
		if not glob('*') + glob('.[!.]*'):
			bb.note("Not creating empty archive for %s-%s" % (pkg, bb.data.expand('${PV}-${PR}${DISTRO_PR}', d, True)))
			continue
		ret = os.system("tar -czf %s %s" % (tarfn, '.'))
		if ret != 0:
			bb.error("Creation of tar %s failed." % tarfn)
}

python () {
    import bb
    if bb.data.getVar('PACKAGES', d, True) != '':
        deps = (bb.data.getVarFlag('do_package_write_tar', 'depends', d) or "").split()
        deps.append('tar-native:do_populate_staging')
        deps.append('fakeroot-native:do_populate_staging')
        bb.data.setVarFlag('do_package_write_tar', 'depends', " ".join(deps), d)
}


python do_package_write_tar () {
	bb.build.exec_func("read_subpackage_metadata", d)
	bb.build.exec_func("do_package_tar", d)
}
do_package_write_tar[dirs] = "${D}"
addtask package_write_tar before do_build after do_package