3 files changed, 38 insertions, 25 deletions

diff --git a/cgit.h b/cgit.h
index f3d2556..c655bd8 100644
--- a/cgit.h
+++ b/cgit.h
@@ -11,6 +11,7 @@
 #include <tag.h>
 #include <diff.h>
 #include <diffcore.h>
+#include <argv-array.h>
 #include <refs.h>
 #include <revision.h>
 #include <log-tree.h>
@@ -274,6 +275,8 @@ struct cgit_context {
         struct cgit_page page;
 };
 
+typedef int (*write_archive_fn_t)(const char *, const char *);
+
 struct cgit_snapshot_format {
         const char *suffix;
         const char *mimetype;
diff --git a/git b/git
-Subproject 15b7898c5e9fc6fed9a6064213cfcd08cf7d731
+Subproject 8258858493ad3504630c3bfa7dfde61df811994
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 47432bd..7374d9d 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -11,7 +11,31 @@
 #include "html.h"
 #include "ui-shared.h"
 
-static int write_compressed_tar_archive(struct archiver_args *args, char *filter_argv[])
+static int write_archive_type(const char *format, const char *hex, const char *prefix)
+{
+        struct argv_array argv = ARGV_ARRAY_INIT;
+        argv_array_push(&argv, format);
+        if (prefix) {
+                argv_array_push(&argv, "--prefix");
+                argv_array_push(&argv, fmt("%s/", prefix));
+        }
+        argv_array_push(&argv, hex);
+        return write_archive(argv.argc, argv.argv, NULL, 1, NULL, 0);
+}
+
+static int write_tar_archive(const char *hex, const char *prefix)
+{
+        return write_archive_type("--format=tar", hex, prefix);
+}
+
+static int write_zip_archive(const char *hex, const char *prefix)
+{
+        return write_archive_type("--format=zip", hex, prefix);
+}
+
+static int write_compressed_tar_archive(const char *hex,
+                                        const char *prefix,
+                                        char *filter_argv[])
 {
         int rv;
         struct cgit_filter f;
@@ -19,27 +43,27 @@ static int write_compressed_tar_archive(struct archiver_args *args, char *filter
         f.cmd = filter_argv[0];
         f.argv = filter_argv;
         cgit_open_filter(&f);
-        rv = write_tar_archive(args);
+        rv = write_tar_archive(hex, prefix);
         cgit_close_filter(&f);
         return rv;
 }
 
-static int write_tar_gzip_archive(struct archiver_args *args)
+static int write_tar_gzip_archive(const char *hex, const char *prefix)
 {
         char *argv[] = { "gzip", "-n", NULL };
-        return write_compressed_tar_archive(args, argv);
+        return write_compressed_tar_archive(hex, prefix, argv);
 }
 
-static int write_tar_bzip2_archive(struct archiver_args *args)
+static int write_tar_bzip2_archive(const char *hex, const char *prefix)
 {
         char *argv[] = { "bzip2", NULL };
-        return write_compressed_tar_archive(args, argv);
+        return write_compressed_tar_archive(hex, prefix, argv);
 }
 
-static int write_tar_xz_archive(struct archiver_args *args)
+static int write_tar_xz_archive(const char *hex, const char *prefix)
 {
         char *argv[] = { "xz", NULL };
-        return write_compressed_tar_archive(args, argv);
+        return write_compressed_tar_archive(hex, prefix, argv);
 }
 
 const struct cgit_snapshot_format cgit_snapshot_formats[] = {
@@ -71,34 +95,20 @@ static int make_snapshot(const struct cgit_snapshot_format *format,
                          const char *hex, const char *prefix,
                          const char *filename)
 {
-        struct archiver_args args;
-        struct commit *commit;
         unsigned char sha1[20];
 
-        if(get_sha1(hex, sha1)) {
+        if (get_sha1(hex, sha1)) {
                 cgit_print_error(fmt("Bad object id: %s", hex));
                 return 1;
         }
-        commit = lookup_commit_reference(sha1);
-        if(!commit) {
+        if (!lookup_commit_reference(sha1)) {
                 cgit_print_error(fmt("Not a commit reference: %s", hex));
                 return 1;
         }
-        memset(&args, 0, sizeof(args));
-        if (prefix) {
-                args.base = fmt("%s/", prefix);
-                args.baselen = strlen(prefix) + 1;
-        } else {
-                args.base = "";
-                args.baselen = 0;
-        }
-        args.tree = commit->tree;
-        args.time = commit->date;
-        args.compression_level = Z_DEFAULT_COMPRESSION;
         ctx.page.mimetype = xstrdup(format->mimetype);
         ctx.page.filename = xstrdup(filename);
         cgit_print_http_headers(&ctx);
-        format->write_func(&args);
+        format->write_func(hex, prefix);
         return 0;
 }