4 files changed, 56 insertions, 4 deletions

diff --git a/cgitrc.5.txt b/cgitrc.5.txtindex 4ad3e64..33a6a8c 100644--- a/cgitrc.5.txt+++ b/cgitrc.5.txt@@ -407,9 +407,12 @@ side-by-side-diffs:: snapshots:: 	Text which specifies the default set of snapshot formats that cgit 	generates links for. The value is a space-separated list of zero or-	more of the values "tar", "tar.gz", "tar.bz2", "tar.xz", "tar.lz" and-	"zip". The special value "all" enables all snapshot formats.-	Default value: none.+	more of the values "tar", "tar.gz", "tar.bz2", "tar.lz", "tar.xz",+	"tar.zst" and "zip". The special value "all" enables all snapshot+	formats. Default value: none.+	All compressors use default settings. Some settings can be influenced+	with environment variables, for example set ZSTD_CLEVEL=10 in web+	server environment for higher (but slower) zstd compression.  source-filter:: 	Specifies a command which will be invoked to format plaintext blobs
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 4ad3e64..33a6a8c 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -407,9 +407,12 @@ side-by-side-diffs::
 snapshots::
 	Text which specifies the default set of snapshot formats that cgit
 	generates links for. The value is a space-separated list of zero or
-	more of the values "tar", "tar.gz", "tar.bz2", "tar.xz", "tar.lz" and
-	"zip". The special value "all" enables all snapshot formats.
-	Default value: none.
+	more of the values "tar", "tar.gz", "tar.bz2", "tar.lz", "tar.xz",
+	"tar.zst" and "zip". The special value "all" enables all snapshot
+	formats. Default value: none.
+	All compressors use default settings. Some settings can be influenced
+	with environment variables, for example set ZSTD_CLEVEL=10 in web
+	server environment for higher (but slower) zstd compression.
 
 source-filter::
 	Specifies a command which will be invoked to format plaintext blobs
diff --git a/tests/setup.sh b/tests/setup.shindex 334cca6..5879348 100755--- a/tests/setup.sh+++ b/tests/setup.sh@@ -104,7 +104,7 @@ virtual-root=/ cache-root=$PWD/cache  cache-size=1021-snapshots=tar.gz tar.bz tar.lz tar.xz zip+snapshots=tar.gz tar.bz tar.lz tar.xz tar.zst zip enable-log-filecount=1 enable-log-linecount=1 summary-log=5
diff --git a/tests/setup.sh b/tests/setup.sh
index 334cca6..5879348 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -104,7 +104,7 @@ virtual-root=/
 cache-root=$PWD/cache
 
 cache-size=1021
-snapshots=tar.gz tar.bz tar.lz tar.xz zip
+snapshots=tar.gz tar.bz tar.lz tar.xz tar.zst zip
 enable-log-filecount=1
 enable-log-linecount=1
 summary-log=5
diff --git a/tests/t0107-snapshot.sh b/tests/t0107-snapshot.shindex 84995d1..c164d3e 100755--- a/tests/t0107-snapshot.sh+++ b/tests/t0107-snapshot.sh@@ -122,6 +122,48 @@ test_expect_success XZ 'verify untarred file-5' ' 	test_line_count = 1 master/file-5 ' +if test -n "$(which zstd 2>/dev/null)"; then+	test_set_prereq ZSTD+else+	say 'Skipping ZSTD validation tests: zstd not found'+fi++test_expect_success ZSTD 'get foo/snapshot/master.tar.zst' '+	cgit_url "foo/snapshot/master.tar.zst" >tmp+'++test_expect_success ZSTD 'check html headers' '+	head -n 1 tmp |+	grep "Content-Type: application/x-zstd" &&++	head -n 2 tmp |+	grep "Content-Disposition: inline; filename=.master.tar.zst."+'++test_expect_success ZSTD 'strip off the header lines' '+	strip_headers <tmp >master.tar.zst+'++test_expect_success ZSTD 'verify zstd format' '+	zstd --test master.tar.zst &&+	cp master.tar.zst /tmp/.+'++test_expect_success ZSTD 'untar' '+	rm -rf master &&+	tar --zstd -xf master.tar.zst+'++test_expect_success ZSTD 'count files' '+	ls master/ >output &&+	test_line_count = 5 output+'++test_expect_success ZSTD 'verify untarred file-5' '+	grep "^5$" master/file-5 &&+	test_line_count = 1 master/file-5+'+ test_expect_success 'get foo/snapshot/master.zip' ' 	cgit_url "foo/snapshot/master.zip" >tmp '
diff --git a/tests/t0107-snapshot.sh b/tests/t0107-snapshot.sh
index 84995d1..c164d3e 100755
--- a/tests/t0107-snapshot.sh
+++ b/tests/t0107-snapshot.sh
@@ -122,6 +122,48 @@ test_expect_success XZ 'verify untarred file-5' '
 	test_line_count = 1 master/file-5
 '
 
+if test -n "$(which zstd 2>/dev/null)"; then
+	test_set_prereq ZSTD
+else
+	say 'Skipping ZSTD validation tests: zstd not found'
+fi
+
+test_expect_success ZSTD 'get foo/snapshot/master.tar.zst' '
+	cgit_url "foo/snapshot/master.tar.zst" >tmp
+'
+
+test_expect_success ZSTD 'check html headers' '
+	head -n 1 tmp |
+	grep "Content-Type: application/x-zstd" &&
+
+	head -n 2 tmp |
+	grep "Content-Disposition: inline; filename=.master.tar.zst."
+'
+
+test_expect_success ZSTD 'strip off the header lines' '
+	strip_headers <tmp >master.tar.zst
+'
+
+test_expect_success ZSTD 'verify zstd format' '
+	zstd --test master.tar.zst &&
+	cp master.tar.zst /tmp/.
+'
+
+test_expect_success ZSTD 'untar' '
+	rm -rf master &&
+	tar --zstd -xf master.tar.zst
+'
+
+test_expect_success ZSTD 'count files' '
+	ls master/ >output &&
+	test_line_count = 5 output
+'
+
+test_expect_success ZSTD 'verify untarred file-5' '
+	grep "^5$" master/file-5 &&
+	test_line_count = 1 master/file-5
+'
+
 test_expect_success 'get foo/snapshot/master.zip' '
 	cgit_url "foo/snapshot/master.zip" >tmp
 '
diff --git a/ui-snapshot.c b/ui-snapshot.cindex 92cde42..556d3ed 100644--- a/ui-snapshot.c+++ b/ui-snapshot.c@@ -91,6 +91,12 @@ static int write_tar_xz_archive(const char *hex, const char *prefix) 	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 @@ const struct cgit_snapshot_format cgit_snapshot_formats[] = { 	{ ".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 } };
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 @@ static int write_tar_xz_archive(const char *hex, const char *prefix)
 	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 @@ const struct cgit_snapshot_format cgit_snapshot_formats[] = {
 	{ ".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 }
 };