Thread (5 messages) flat view 5 messages, 4 authors, 2016-06-15

Re: [PATCH] clone: make sure we support the transport type

From: Daniel Barkalow <hidden>
Date: 2016-06-15 22:44:39

On Tue, 27 May 2008, Jeff King wrote:
If we use an unsupported transport (e.g., http when curl
support is not compiled in), transport_get reports an error
to the user, but we still get a transport object. We need to
manually check and abort the clone process at that point, or
we end up with a segfault.

Noticed by Thomas Rast.
Good catch. I think it might be better to have the transport functions 
report failure when the method requested is NULL, but it's also worthwhile 
to notice this in advance and give the user a comprehensive message in 
advance.

Acked-by: Daniel Barkalow <redacted>
quoted hunk ↗ jump to hunk
Signed-off-by: Jeff King <redacted>
---
There are a few other calls to transport_get in builtin-clone, for
setting up references and doing local cloning. I didn't check, but
assumed it was impossible for http:// remotes to make it to that code
path.

 builtin-clone.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/builtin-clone.c b/builtin-clone.c
index 4740b13..f4accbe 100644
--- a/builtin-clone.c
+++ b/builtin-clone.c
@@ -449,6 +449,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		struct remote *remote = remote_get(argv[0]);
 		struct transport *transport = transport_get(remote, argv[0]);
 
+		if (!transport->get_refs_list || !transport->fetch)
+			die("Don't know how to clone %s", transport->url);
+
 		transport_set_option(transport, TRANS_OPT_KEEP, "yes");
 
 		if (option_depth)
-- 
1.5.6.rc0.128.g5fd3b9.dirty
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