internal/pkg: decompress zstd streams

This uses internal/zstd until compress/zstd becomes available.

Signed-off-by: Ophestra <cat@gensokyo.uk>

4 files changed, 10 insertions, 0 deletions

diff --git a/internal/zstd/testdata/1890a371.gettysburg.txt-100x.zst b/internal/zstd/testdata/1890a371.gettysburg.txt-100x.zst
new file mode 100644
index 00000000..afb4a276
--- /dev/null
+++ b/internal/zstd/testdata/1890a371.gettysburg.txt-100x.zst
diff --git a/internal/zstd/testdata/README b/internal/zstd/testdata/README
new file mode 100644
index 00000000..1a6dbb3a
--- /dev/null
+++ b/internal/zstd/testdata/README
@@ -0,0 +1,10 @@
+This directory holds files for testing zstd.NewReader.
+
+Each one is a Zstandard compressed file named as hash.arbitrary-name.zst,
+where hash is the first eight hexadecimal digits of the SHA256 hash
+of the expected uncompressed content:
+
+	zstd -d < 1890a371.gettysburg.txt-100x.zst | sha256sum | head -c 8
+	1890a371
+
+The test uses hash value to verify decompression result.
diff --git a/internal/zstd/testdata/f2a8e35c.helloworld-11000x.zst b/internal/zstd/testdata/f2a8e35c.helloworld-11000x.zst
new file mode 100644
index 00000000..87a8aca9
--- /dev/null
+++ b/internal/zstd/testdata/f2a8e35c.helloworld-11000x.zst
diff --git a/internal/zstd/testdata/fcf30b99.zero-dictionary-ids.zst b/internal/zstd/testdata/fcf30b99.zero-dictionary-ids.zst
new file mode 100644
index 00000000..1be89e81
--- /dev/null
+++ b/internal/zstd/testdata/fcf30b99.zero-dictionary-ids.zst