X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=test-svn-fe.c;h=66bd04022dab32e894c5e6ca18702b69ad0a0ed0;hb=e9f3f8b6f4141dae526e9792ba6dede7aa038622;hp=77cf78abcfd18532b1b75e5ad5efa21b27f1a28c;hpb=71d35bdb3613b753dbd5b83992e298531f701b6b;p=~andy%2Fgit

diff --git a/test-svn-fe.c b/test-svn-fe.c
index 77cf78abc..66bd04022 100644
--- a/test-svn-fe.c
+++ b/test-svn-fe.c
@@ -4,14 +4,41 @@
 
 #include "git-compat-util.h"
 #include "vcs-svn/svndump.h"
+#include "vcs-svn/svndiff.h"
+#include "vcs-svn/sliding_window.h"
+#include "vcs-svn/line_buffer.h"
 
 int main(int argc, char *argv[])
 {
-	if (argc != 2)
-		usage("test-svn-fe <file>");
-	svndump_init(argv[1]);
-	svndump_read(NULL);
-	svndump_deinit();
-	svndump_reset();
-	return 0;
+	static const char test_svnfe_usage[] =
+		"test-svn-fe (<dumpfile> | [-d] <preimage> <delta> <len>)";
+	if (argc == 2) {
+		if (svndump_init(argv[1]))
+			return 1;
+		svndump_read(NULL);
+		svndump_deinit();
+		svndump_reset();
+		return 0;
+	}
+	if (argc == 5 && !strcmp(argv[1], "-d")) {
+		struct line_buffer preimage = LINE_BUFFER_INIT;
+		struct line_buffer delta = LINE_BUFFER_INIT;
+		struct sliding_view preimage_view = SLIDING_VIEW_INIT(&preimage);
+		if (buffer_init(&preimage, argv[2]))
+			die_errno("cannot open preimage");
+		if (buffer_init(&delta, argv[3]))
+			die_errno("cannot open delta");
+		if (svndiff0_apply(&delta, (off_t) strtoull(argv[4], NULL, 0),
+					&preimage_view, stdout))
+			return 1;
+		if (buffer_deinit(&preimage))
+			die_errno("cannot close preimage");
+		if (buffer_deinit(&delta))
+			die_errno("cannot close delta");
+		buffer_reset(&preimage);
+		strbuf_release(&preimage_view.buf);
+		buffer_reset(&delta);
+		return 0;
+	}
+	usage(test_svnfe_usage);
 }