Allow reading svn dumps from files via file:// urls

For testing as well as for importing large, already available dumps,
it's useful to bypass svnrdump and replay the svndump from a file
directly.

Add support for file:// urls in the remote url, e.g.

  svn::file:///path/to/dump

When the remote helper finds an url starting with file:// it tries to
open that file instead of invoking svnrdump.

Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Acked-by: David Michael Barr <b@rr-dav.id.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/remote-testsvn.c b/remote-testsvn.c
index c30ffcdb375387a98b7f9bad54c269487267d3af..67466a996246108fc60233c88d29c9fbd6fc6b58 100644 (file)
--- a/remote-testsvn.c
+++ b/remote-testsvn.c
@@ -9,6 +9,7 @@
 #include "argv-array.h"
 
 static const char *url;
+static int dump_from_file;
 static const char *private_ref;
 static const char *remote_ref = "refs/heads/master";
 
@@ -54,29 +55,36 @@ static int cmd_import(const char *line)
        struct argv_array svndump_argv = ARGV_ARRAY_INIT;
        struct child_process svndump_proc;
 
-       memset(&svndump_proc, 0, sizeof(struct child_process));
-       svndump_proc.out = -1;
-       argv_array_push(&svndump_argv, "svnrdump");
-       argv_array_push(&svndump_argv, "dump");
-       argv_array_push(&svndump_argv, url);
-       argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
-       svndump_proc.argv = svndump_argv.argv;
-
-       code = start_command(&svndump_proc);
-       if (code)
-               die("Unable to start %s, code %d", svndump_proc.argv[0], code);
-       dumpin_fd = svndump_proc.out;
-
+       if (dump_from_file) {
+               dumpin_fd = open(url, O_RDONLY);
+               if(dumpin_fd < 0)
+                       die_errno("Couldn't open svn dump file %s.", url);
+       } else {
+               memset(&svndump_proc, 0, sizeof(struct child_process));
+               svndump_proc.out = -1;
+               argv_array_push(&svndump_argv, "svnrdump");
+               argv_array_push(&svndump_argv, "dump");
+               argv_array_push(&svndump_argv, url);
+               argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
+               svndump_proc.argv = svndump_argv.argv;
+
+               code = start_command(&svndump_proc);
+               if (code)
+                       die("Unable to start %s, code %d", svndump_proc.argv[0], code);
+               dumpin_fd = svndump_proc.out;
+       }
        svndump_init_fd(dumpin_fd, STDIN_FILENO);
        svndump_read(url, private_ref);
        svndump_deinit();
        svndump_reset();
 
        close(dumpin_fd);
-       code = finish_command(&svndump_proc);
-       if (code)
-               warning("%s, returned %d", svndump_proc.argv[0], code);
-       argv_array_clear(&svndump_argv);
+       if (!dump_from_file) {
+               code = finish_command(&svndump_proc);
+               if (code)
+                       warning("%s, returned %d", svndump_proc.argv[0], code);
+               argv_array_clear(&svndump_argv);
+       }
 
        return 0;
 }
@@ -151,8 +159,14 @@ int main(int argc, const char **argv)
        remote = remote_get(argv[1]);
        url_in = (argc == 3) ? argv[2] : remote->url[0];
 
-       end_url_with_slash(&url_sb, url_in);
-       url = url_sb.buf;
+       if (!prefixcmp(url_in, "file://")) {
+               dump_from_file = 1;
+               url = url_decode(url_in + sizeof("file://")-1);
+       } else {
+               dump_from_file = 0;
+               end_url_with_slash(&url_sb, url_in);
+               url = url_sb.buf;
+       }
 
        strbuf_addf(&private_ref_sb, "refs/svn/%s/master", remote->name);
        private_ref = private_ref_sb.buf;