General questions - git archive a .j2 file with keyword expansion in the header section

Lin, Nathan (GSE)· Aug 19, 2021, 21:28 UTC · lore

Hello Devs,

Got a question on using git keyword expansion on a .j2 template file. Keyword expansion does not seem to work with .j2 file. Please see below a snippet of my attempt to archive test.cfg.j2 containing git keyword expansions in the header. It works if I changes the .j2 file extension to something else, say .yaml. I have not been able to find any information about issue. Can you please review and advise? Thank you.

[root@da ~]# cat Ansible_Playbooks/Day0/roles/hpe-bm-kickstart/templates/test.cfg.j2 ############################################################################## # Author : $Format: %an <%ae>$ # Commit : $Format: %h$ # Date : $Format: %cs$ # ##############################################################################

[root@da ~]# git archive --format=tgz HEAD --output=test.tar.gz Ansible_Playbooks/Day0/roles/hpe-bm-kickstart/templates/test.cfg.j2 [root@da ~]# tar -xf test.tar.gz --directory test [root@da ~]# cat test test/ test.tar.gz [root@da ~]# cat test test/ test.tar.gz [root@da ~]# cat test/Ansible_Playbooks/Day0/roles/hpe-bm-kickstart/templates/test.cfg.j2 ############################################################################## # Author : $Format: %an <%ae>$ # Commit : $Format: %h$ # Date : $Format: %cs$ # ##############################################################################

[root@da ~]#

Regards, Nathan Lin Solutions Engineer Global Sales Engineering (GSE) https://hpe.com/info/askgse (Internal site) +1 (281) 204-4077 Office

Houston, TX hpe.com

Jeff King· Aug 19, 2021, 22:28 UTC · re: Lin, Nathan (GSE) · lore

Re: General questions - git archive a .j2 file with keyword expansion in the header section

On Thu, Aug 19, 2021 at 09:28:11PM +0000, Lin, Nathan (GSE) wrote:

Show 7 quoted lines

> Got a question on using git keyword expansion on a .j2 template file.
> Keyword expansion does not seem to work with .j2 file. Please see
> below a snippet of my attempt to archive test.cfg.j2 containing git
> keyword expansions in the header. It works if I changes the .j2 file
> extension to something else, say .yaml. I have not been able to find
> any information about issue. Can you please review and advise? Thank
> you.

Do you have .gitattributes entries that tell Git it should apply the "export-subst" attribute to any files? If so, does it cover .yaml files, but not .j2?

-Peff