Merge branch 'baserock/jonathanmaw/S9007/upgrade-git' into baserock/morphbaserock/morph

Reviewed-by: Lars Wirzenius <lars.wirzenius@codethink.co.uk>
Reviewed-by: Daniel Silverstone <daniel.silverstone@codethink.co.uk>

1 files changed, 19 insertions, 6 deletions

diff --git a/zlib.c b/zlib.c
index 2b2c0c780e..61e6df0fdc 100644
--- a/zlib.c
+++ b/zlib.c
@@ -168,13 +168,8 @@ void git_deflate_init(git_zstream *strm, int level)
 	    strm->z.msg ? strm->z.msg : "no message");
 }
 
-void git_deflate_init_gzip(git_zstream *strm, int level)
+static void do_git_deflate_init(git_zstream *strm, int level, int windowBits)
 {
-	/*
-	 * Use default 15 bits, +16 is to generate gzip header/trailer
-	 * instead of the zlib wrapper.
-	 */
-	const int windowBits = 15 + 16;
 	int status;
 
 	zlib_pre_call(strm);
@@ -188,6 +183,24 @@ void git_deflate_init_gzip(git_zstream *strm, int level)
 	    strm->z.msg ? strm->z.msg : "no message");
 }
 
+void git_deflate_init_gzip(git_zstream *strm, int level)
+{
+	/*
+	 * Use default 15 bits, +16 is to generate gzip header/trailer
+	 * instead of the zlib wrapper.
+	 */
+	do_git_deflate_init(strm, level, 15 + 16);
+}
+
+void git_deflate_init_raw(git_zstream *strm, int level)
+{
+	/*
+	 * Use default 15 bits, negate the value to get raw compressed
+	 * data without zlib header and trailer.
+	 */
+	do_git_deflate_init(strm, level, -15);
+}
+
 int git_deflate_abort(git_zstream *strm)
 {
 	int status;