[PATCH] Avoid unnecessarily inflating and interpreting delta

diff --git a/send-pack.c b/send-pack.c
index 45198674ab9eb30ee567d36cea0fb1071984a9ca..93674d8e4f037088926e6a558fafefa91b8eff96 100644 (file)
--- a/send-pack.c
+++ b/send-pack.c
@@ -3,9 +3,29 @@
 #include <sys/wait.h>
 
 static const char send_pack_usage[] = "git-send-pack [--exec=other] destination [heads]*";
-
 static const char *exec = "git-receive-pack";
 
+static int path_match(const char *path, int nr, char **match)
+{
+       int i;
+       int pathlen = strlen(path);
+
+       for (i = 0; i < nr; i++) {
+               char *s = match[i];
+               int len = strlen(s);
+
+               if (!len || len > pathlen)
+                       continue;
+               if (memcmp(path + pathlen - len, s, len))
+                       continue;
+               if (pathlen > len && path[pathlen - len - 1] != '/')
+                       continue;
+               *s = 0;
+               return 1;
+       }
+       return 0;
+}
+
 struct ref {
        struct ref *next;
        unsigned char old_sha1[20];
@@ -108,7 +128,7 @@ static int read_ref(const char *ref, unsigned char *sha1)
        return ret;
 }
 
-static int send_pack(int in, int out)
+static int send_pack(int in, int out, int nr_match, char **match)
 {
        struct ref *ref_list = NULL, **last_ref = &ref_list;
        struct ref *ref;
@@ -129,6 +149,8 @@ static int send_pack(int in, int out)
                if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ')
                        die("protocol error: expected sha/ref, got '%s'", buffer);
                name = buffer + 41;
+               if (nr_match && !path_match(name, nr_match, match))
+                       continue;
                if (read_ref(name, new_sha1) < 0)
                        return error("no such local reference '%s'", name);
                if (!has_sha1_file(old_sha1))
@@ -260,7 +282,7 @@ int main(int argc, char **argv)
        pid = setup_connection(fd, dest, heads);
        if (pid < 0)
                return 1;
-       ret = send_pack(fd[0], fd[1]);
+       ret = send_pack(fd[0], fd[1], nr_heads, heads);
        close(fd[0]);
        close(fd[1]);
        waitpid(pid, NULL, 0);