git does not work on OSX. about cmsdist

[ktf]

Workaround for the moment is:

export PATH=/usr/bin:$PATH

to pick up system git, which does not have the problem.

[davidlt]

The problem is understood. On Darwin cURL is modified to use Keychain, thus Certification Authority certificates are not available on the system. This does not allow cURL/GIT to verify any HTTPS communication.

We have two options:

1. Add GIT_SSL_NO_VERIFY=true which disables HTTPS verification, kinda "trust all" mode.
2. A script is included into cURL library to download from Mozilla (NSS) Certification Authority certificates and generate ca-bundle.crt. Such should be shipped with cURL/GIT/different package and set GIT_SSL_CAPATH and/or GIT_SSL_CAINFO.

Both work:

GIT_SSL_NO_VERIFY=true git clone https://github.com/cms-sw/cms-git-tools.git
GIT_SSL_CAPATH=$PWD GIT_SSL_CAINFO=ca-bundle.crt git clone https://github.com/cms-sw/cms-git-tools.git

To be safe I would go w/ 2 and put ca-bundle.crt into a GIT package.

[ktf]

As discussed, whatever we do should work also with the CERN CA.

[davidlt]

Solved for CMSSW_6_2_0 and above.