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core/base/mp_copyfolder.sas

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SAS

/**
@file
@brief A macro to recursively copy a directory
@details Performs a recursive directory listing then works from top to bottom
copying files and creating subdirectories.
Usage:
%let rootdir=%sysfunc(pathname(work))/demo;
%let copydir=%sysfunc(pathname(work))/demo_copy;
%mf_mkdir(&rootdir)
%mf_mkdir(&rootdir/subdir)
%mf_mkdir(&rootdir/subdir/subsubdir)
data "&rootdir/subdir/example.sas7bdat";
run;
%mp_copyfolder(&rootdir,&copydir)
@param [in] source Unquoted path to the folder to copy from.
@param [out] target Unquoted path to the folder to copy to.
@param [in] copymax= (MAX) Set to a positive integer to indicate the level of
subdirectory copy recursion - eg 3, to go `./3/levels/deep`. For unlimited
recursion, set to MAX.
<h4> SAS Macros </h4>
@li mf_getuniquename.sas
@li mf_isdir.sas
@li mf_mkdir.sas
@li mp_abort.sas
@li mp_dirlist.sas
<h4> Related Macros </h4>
@li mp_copyfolder.test.sas
**/
%macro mp_copyfolder(source,target,copymax=MAX);
%mp_abort(iftrue=(%mf_isdir(&source)=0)
,mac=&sysmacroname
,msg=%str(Source dir does not exist (&source))
)
%mf_mkdir(&target)
%mp_abort(iftrue=(%mf_isdir(&target)=0)
,mac=&sysmacroname
,msg=%str(Target dir could not be created (&target))
)
/* prep temp table */
%local tempds;
%let tempds=%mf_getuniquename();
/* recursive directory listing */
%mp_dirlist(path=&source,outds=work.&tempds,maxdepth=&copymax)
/* create folders and copy content */
data _null_;
length msg $200;
call missing(msg);
set work.&tempds;
if _n_ = 1 then dpos+sum(length(directory),2);
filepath2="&target/"!!substr(filepath,dpos);
if file_or_folder='folder' then call execute('%mf_mkdir('!!filepath2!!')');
else do;
length fref1 fref2 $8;
rc1=filename(fref1,filepath,'disk','recfm=n');
rc2=filename(fref2,filepath2,'disk','recfm=n');
if fcopy(fref1,fref2) ne 0 then do;
msg=sysmsg();
putlog 'ERR' +(-1) "OR: Unable to copy " filepath " to " filepath2;
putlog msg=;
end;
end;
rc=filename(fref1);
rc=filename(fref2);
run;
/* tidy up */
proc sql;
drop table work.&tempds;
%mend mp_copyfolder;