Brandon Casey wrote:
quoted text
> 
> When cloning with the new builtin-clone, if the src repo is not
> on the same disk as the dest repo, cloning fails. This is because
> hard linking does not fall back to copying like the shell version
> did.
> 
> The shell version also made a distinction between defaulting to
> hard linking and an explicit request to hard link. In the latter
> case it would not fall back to copying, but would die.

Something like this (if not too ugly) might do the trick:

diff --git a/builtin-clone.c b/builtin-clone.c
index 8713128..1062371 100644
--- a/builtin-clone.c
+++ b/builtin-clone.c
@@ -208,11 +208,17 @@ static void copy_or_link_directory(char *src, char *dest)
 		if (unlink(dest) && errno != ENOENT)
 			die("failed to unlink %s\n", dest);
 		if (option_no_hardlinks) {
+FALLBACK_TO_COPY:
 			if (copy_file(dest, src, 0666))
 				die("failed to copy file to %s\n", dest);
 		} else {
-			if (link(src, dest))
+			if (link(src, dest)) {
+				if (errno == EXDEV && !option_local) {
+				    	option_no_hardlinks = 1;
+					goto FALLBACK_TO_COPY;
+				}
 				die("failed to create link %s\n", dest);
+			}
 		}
 	}
 }


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