Better ssh URLs support (in CRAN OSX and Windows binaries)

[gaborcsardi]

Currently the OSX binary on CRAN does not seem to support remotes over SSH. I know that I can compile from source and then (if I have a local libssh2 install) they'll be supported.

I am just wondering if we can do this better for the CRAN binary as well, so that people do not need libssh2? E.g. we can check how command line git does it, it clearly does not link to libssh, and I guess it does not contain an ssh protocol implementation, although it might.....

[gaborcsardi]

Or, as @hadley noted, we can ask CRAN maintainers to link libssh2 statically on OSX when making the binaries.

[hadley]

@jeroenooms might have some hints about how to make this happen

[jeroen]

I used brew and rwinlib for my git package (before I learned about git2r). Works on all platforms with full support for ssh/ssl.

[sckott]

Same problem on my osx box. Works fine installing from source though.

[sckott]

@stewid any thoughts on this issue?

[stewid]

I can send an email to the CRAN maintainers and ask if it's possible to statically link libssh2 on OSX.

[sckott]

cool, thanks @stewid

[jeroen]

You should mail Simon for that, he maintains the builders for OSX. But last time I asked he didn't reply.

What I do for V8 and RMySQL is run a script on the server that installs brew and builds static libraries. It's very hacky but it works... usually

[stewid]

@jeroenooms thanks

[stewid]

I have not received any reply from Simon.

[stewid]

I have updated the configure script to download and build libssh2 (ver 1.6.0, https://github.com/libssh2/libssh2/releases/tag/libssh2-1.6.0) on OSX.

It seems to work as expected, but please test.