On Fri, 2007-06-29 at 08:22 -0400, Dan Williams wrote: > Two questions here: > > 1) what does the scheme do in the case where the file it's about to > replace on the local machine isn't the same as what the manifest on the > local machine says? ie, local changes have changed the sha1 hash of the > local file. That's essentially a policy decision, do we replace when > there are local changes or don't we. A %config-type thing could work > here to mark files that you may/may not always want to replace.
At the moment it only touches the files that are affected by the diff in the manifest. If a file wasn't changed in the manifests we don't even look at it. However, if the file we're replacing has changed locally, we currently throw that away. > 2) After downloading a blob, I assume the tool sha1s the downloaded file > to ensure that it's content matches the name, right? Yeah, or rather, while downloading. > > We need a library to do http downloads. I see we're shipping libcurl on > > the laptop. Is it ok to use this library? > > Yeah, though the ironic thing just occurred to me that libcurl is (along > with Mozilla) one of the more frequently updated pieces of a linux > distro :) I ended up using urllib2 in python. > > (We also need a very simple http sever that maps sha1 -> file in system > > image for laptop-to-laptop upgrades, but I think we can do that without > > using a library.) > > "simple" means lighttpd in my mind, but apache has a longer track > record. simple means 300 lines of C code in serve-manifest.c... _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
