topic Re: Stage all files at once using GIT_INDEX_ADD? in SAS Viya

Stage all files at once using GIT_INDEX_ADD?

alisio_meneses — Tue, 05 Apr 2022 20:23:18 GMT

Hi there.

I am using the function GIT_INDEX_ADD to stage files in a local git repo and it is working fine using the following snippet from SAS Viya 3.5 documentation.

data _null_;
   n = git_status("your-repository");                                      /**/
   rc = git_index_add("your-repository", "your-file", "file-attribute");   /**/
   rc = git_status_free("your-repository")
   n = git_status("your-repository");                                      /**/
run;

The thing is I want to stage all files in the repo without previous knowledge of the filename like the git CLI command " git add * " does.

Does anyone knows if this is possible using SAS StudioV for Viya 3.5?

Cheers!

Re: Stage all files at once using GIT_INDEX_ADD?

gwootton — Wed, 06 Apr 2022 13:50:27 GMT

The asterisk is a shell function that expands to all files in a given path. For example if you run "echo *", the shell will return a list of all files. So git add is still being given all the file names, we just need to replicate that * behavior.
I think what you'd want to do is create a data set of all files in a given path, then use the data step to run git_index_add on each of them. The way I've done this in the past is here (creating a dataset called dirlist from the path defined in the macro variable &path). This does require XCMD so we can run the ls command.

filename DIRLIST pipe "ls &path";
data dirlist;
infile dirlist lrecl=200 truncover;
input file_name $100.;
run;

I think you could then add a "set dirlist;" to your data _null_ data step, and instead of "your-file" use file_name.

Re: Stage all files at once using GIT_INDEX_ADD?

alisio_meneses — Wed, 06 Apr 2022 21:00:26 GMT

Hi there @gwootton.

Sadly I lack the privilege needed to run XCMD commands so I had to adapt your suggestion a bit and ended up with a script that does the same thing but doesn't use XCMD command.

/* Create dataset containing list of files */
data dirlist;
	length fref $8 fname $200;
	did=filename(fref, "/git_repo_folder");
	did=dopen(fref);

	do i=1 to dnum(did);
		fname=dread(did, i);
		output;
	end;
	did=dclose(did);
	did=filename(fref);
	keep fname;
run;

/* Add list of files to index */
data _null_;
   set dirlist;
   rc = git_index_add("/git_repo_folder", fname, "new");
   n = git_status_free("/git_repo_folder");
run;

Thanks for your reply. Your tip was very helpful!