feat: two new macros (mp_gitadd and mp_gitstatus) with corresponding tests, also a new utility program for deploying the library as a SAS PACKAGE

base/mp_gitadd.sas

@@ -0,0 +1,46 @@
+/**
+  @file
+  @brief Stages files in a GIT repo
+  @details Uses the output dataset from mp_gitstatus.sas to determine the files
+  that should be staged.
+
+  If STAGED != `"TRUE"` then the file is staged (so you could provide an empty
+  char column if staging all observations).
+
+  Usage:
+
+      %let dir=%sysfunc(pathname(work))/core;
+      %let repo=https://github.com/sasjs/core;
+      %put source clone rc=%sysfunc(GITFN_CLONE(&repo,&dir));
+      %mf_writefile(&dir/somefile.txt,l1=some content)
+      %mf_deletefile(&dir/package.json)
+      %mp_gitstatus(&dir,outds=work.gitstatus)
+
+      %mp_gitadd(&dir,inds=work.gitstatus)
+
+  @param [in] gitdir The directory containing the GIT repository
+  @param [in] inds= (work.mp_gitadd) The input dataset with the list of files
+  to stage.  Will accept the output from mp_gitstatus(), else just use a table
+  with the following columns:
+    @li path $1024 - relative path to the file in the repo
+    @li staged $32 - whether the file is staged (TRUE or FALSE)
+    @li status $64 - either new, deleted, or modified
+
+  @param [in] mdebug= (0) Set to 1 to enable DEBUG messages
+
+  <h4> Related Files </h4>
+  @li mp_gitadd.test.sas
+  @li mp_gitstatus.sas
+
+**/
+
+%macro mp_gitadd(gitdir,inds=work.mp_gitadd,mdebug=0);
+
+data _null_;
+  set &inds;
+  if STAGED ne "TRUE";
+  rc=git_index_add("&gitdir",cats(path),status);
+  if rc ne 0 or &mdebug=1 then put rc=;
+run;
+
+%mend mp_gitadd;