ui-snapshot: add support for zstd compression
This patch adds support for zstd [0] compressed snapshots (*.tar.zst).
We enable multiple working threads (-T0), but keep default compression
level. The latter can be influenced by environment variable.
[0] https://www.zstd.net/
Signed-off-by: Christian Hesse <mail@eworm.de>
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 92cde42..556d3ed 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -91,6 +91,12 @@
return write_compressed_tar_archive(hex, prefix, argv);
}
+static int write_tar_zstd_archive(const char *hex, const char *prefix)
+{
+ char *argv[] = { "zstd", "-T0", NULL };
+ return write_compressed_tar_archive(hex, prefix, argv);
+}
+
const struct cgit_snapshot_format cgit_snapshot_formats[] = {
/* .tar must remain the 0 index */
{ ".tar", "application/x-tar", write_tar_archive },
@@ -98,6 +104,7 @@
{ ".tar.bz2", "application/x-bzip2", write_tar_bzip2_archive },
{ ".tar.lz", "application/x-lzip", write_tar_lzip_archive },
{ ".tar.xz", "application/x-xz", write_tar_xz_archive },
+ { ".tar.zst", "application/x-zstd", write_tar_zstd_archive },
{ ".zip", "application/x-zip", write_zip_archive },
{ NULL }
};