test.fer

let fs = import('std/fs');
let vec = import('std/vec');
let stat = import('std/stat');
let ar = import('archive/archive');
let bytebuffer = import('std/bytebuffer');

# libarchive zstd format doesn't seem to be working correctly on Android (10)
let zstwriter = ar.newArchive(ar.OPEN_WRITE);
zstwriter.addFilter(ar.FILTER_ZSTD);
zstwriter.setFormat(ar.FORMAT_TAR_PAX_RESTRICTED);
zstwriter.open('test.tar.zst');
zstwriter.addFile('README.md');
zstwriter.addFile('LICENSE');
zstwriter.close();

let zstreader = ar.newArchive(ar.OPEN_READ);
zstreader.addFilter(ar.FILTER_ZSTD);
zstreader.setFormat(ar.FORMAT_TAR_PAX_RESTRICTED);
zstreader.open('test.tar.zst');
zstreader.extract();
zstreader.close();

# equivalent to https://github.com/libarchive/libarchive/wiki/Examples#a-basic-write-example
let files = vec.new('README.md', 'LICENSE');
let bb = bytebuffer.new(8192);
let gzwriter = ar.newArchive(ar.OPEN_WRITE);
gzwriter.addFilter(ar.FILTER_GZIP);
gzwriter.setFormat(ar.FORMAT_TAR_PAX_RESTRICTED);
gzwriter.open('test.tar.gz');
let entry = ar.newEntry();
for file in files.each() {
	let stat = stat.stat(file);
	entry.setPathname(file);
	entry.setSize(stat.size);
	entry.setFiletype(stat.getArchiveEntryFiletype());
	entry.setPerm(stat.mode);
	gzwriter.writeHeader(entry);
	let fd = fs.fdOpen(file);
	let len = 0;
	while (len = fs.fdRead(fd, bb)) > 0 {
		gzwriter.writeData(bb);
	}
	fs.fdClose(fd);
	entry.clear();
}
gzwriter.close();