Dependency on gert triggers preperror during rhub::check_for_cran()

[cjvanlissa]

Ubuntu systems yield the following error in a package with dependency on gert when running rhub::check_for_cran():

* installing *source* package ‘gert’ ...
** package ‘gert’ successfully unpacked and MD5 sums checked
** using staged installation
Using PKG_CFLAGS=
Using PKG_LIBS=-lgit2
------------------------- ANTICONF ERROR ---------------------------
Configuration failed because libgit2 was not found. Try installing:
* brew: libgit2 (MacOS)
* deb: libgit2-dev (Debian, Ubuntu, etc)
* rpm: libgit2-devel (Fedora, CentOS, RHEL)
If libgit2 is already installed, check that 'pkg-config' is in your
PATH and PKG_CONFIG_PATH contains a libgit2.pc file. If pkg-config
is unavailable you can set INCLUDE_DIR and LIB_DIR manually via:
R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'
--------------------------------------------------------------------
ERROR: configuration failed for package ‘gert’
* removing ‘/home/docker/R/gert’

[jeroen]

I think this would be solved via: #75

[cjvanlissa]

I think it's related to a problem with openssl, which also interferes with other packages:

* installing *source* package ‘openssl’ ...
** package ‘openssl’ successfully unpacked and MD5 sums checked
** using staged installation
Using PKG_CFLAGS=
------------------------- ANTICONF ERROR ---------------------------
Configuration failed because openssl was not found. Try installing:
 * deb: libssl-dev (Debian, Ubuntu, etc)
 * rpm: openssl-devel (Fedora, CentOS, RHEL)
 * csw: libssl_dev (Solaris)
 * brew: openssl@1.1 (Mac OSX)
If openssl is already installed, check that 'pkg-config' is in your
PATH and PKG_CONFIG_PATH contains a openssl.pc file. If pkg-config
is unavailable you can set INCLUDE_DIR and LIB_DIR manually via:
R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'
--------------------------------------------------------------------
ERROR: configuration failed for package ‘openssl’
* removing ‘/home/docker/R/openssl’

[gaborcsardi]

The full log would be useful.

[cjvanlissa]

Alright, here is the full log: https://builder.r-hub.io/status/original/worcs_0.1.0.6.tar.gz-054adee8f1fb459c908f9dc1c0edd30c

[gaborcsardi]

This is the problem:

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libgit2-dev : Depends: libcurl4-gnutls-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I suspect that libcurl4-gnutls-dev is incompatible with libcurl4-openssl-dev?

I am not sure why this came up now, and what we can do about it.

[gaborcsardi]

It is probably this situation: https://stackoverflow.com/q/34706247/604364

[cjvanlissa]

Alright, thank you for clarifying. These are very downstream dependencies, and I only get the preperror on the R-hub "Ubuntu Linux 16.04 LTS, R-release, GCC" system. So I'll ignore.

[gaborcsardi]

Yeah, unfortunately this will come up for every package that needs curl or openssl and gert as well, which is probably many.

We need to upgrade Ubuntu anyway, hopefully that solves the issue.

[yutannihilation]

We need to upgrade Ubuntu anyway, hopefully that solves the issue.

FWIW, I tried Ubuntu 18.04 but I see the same error...

https://github.com/yutannihilation/gghighlight/runs/619917086

[jeroen]

To resolve the conflict on 16.04 you can either enable the cran:libgit2 or cran:travis PPA.

[yutannihilation]

Wow, I didn't know this PPA, thanks! Just curious, does it use the Debian version of libgit2-dev?

[riccardoporreca]

I also started experiencing issues with GitHub Actions (based on sysreqs) on Ubuntu 18.04 in the last few days (I guess due to #75). I created a somewhat minimal example with a package only depending on R packages curl and git2r:

https://github.com/riccardoporreca/r-actions-test/tree/sysreqs-ibgit2-dev-libcurl4-openssl-dev

Installing system dependencies fails with error

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libgit2-dev : Depends: libcurl4-gnutls-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Adding ppa:cran/libgit2 as suggested fixes the problem, with system dependencies successfully installed.

Is then the recommendation to include the PPA going forward? Or is there any plan to sort this out within sysreqs at some point, perhaps switching to libcurl4-gnutls-dev instead of libcurl4-openssl-dev in libcurl.json (apologies if this may be a very stupid idea)?