Update remotes

[jimhester]

Implementation of update_remotes as defined in #1037, #975.

I also improved the SVN support to include the SVN revision, so this will now work with all remotes in devtools.

I still need to add tests for this, but this works with a simple test on all remote types on my machine.

[hadley]

Is there are reason to do this here, rather than relying on the individual install methods?

[jimhester]

jimhester@ed000dd does as you suggest moving the SHA checking into install_remote() so it works the same across all remote types.

I also moved the remote updating into update.package_deps, so it will automatically work with the existing update_packages().

[hadley]

What do you think about having a CRAN package type here? That might make it easy for update_packages() to work with everything

[jimhester]

This has been done at jimhester@8bdb10b, let me know your thoughts...

[krlmlr]

While you're at it: Is there a way to not install/upgrade remotes, just to install a single package? I tried

devtools::install("path", dependencies = FALSE, upgrade_dependencies = FALSE, metadata = NULL)

to no avail. (Now I know that the "metadata" arg does something different, never mind.) To me, it looks like install_dev_remotes() is called unconditionally. For now, I'll be using RCMD("INSTALL") as workaround.

[jimhester]

@krlmlr You are correct, the remotes should respect update_dependencies as well.

[jimhester]

c35630c has a simple implementation to handle #1109

[codecov-io]

Current coverage is 42.33%

Merging #1067 into master will decrease coverage by -0.65%

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+ Hits         1853    1875    +22   
- Misses       2457    2554    +97   
  Partials        0       0          

1. 5 files (not in diff) in R were modified. more
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   • Hits +14
2. File R/install-remote.R was modified. more
   • Misses -1
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   • Hits +1

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