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2026-09-17 19:39:08 +09:00 · 2026-08-07 15:56:42 +09:00
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+%FIND_BASE_PACKAGE
+% finds the path to the cSAXS base package by looking for a specific file (+math)
+% the code goes up to 3 levels down in the folder structure and it tries to find any folder matching ./*/+math/
+%
+% returns:
+% ++ base_package_path              path to the cSAXS base package
+%
+% Example how to use it: addpath(find_base_package())
+
+
+%*-----------------------------------------------------------------------*
+%|                                                                       |
+%|  Except where otherwise noted, this work is licensed under a          |
+%|  Creative Commons Attribution-NonCommercial-ShareAlike 4.0            |
+%|  International (CC BY-NC-SA 4.0) license.                             |
+%|                                                                       |
+%|  Copyright (c) 2017 by Paul Scherrer Institute (http://www.psi.ch)    |
+%|                                                                       |
+%|       Author: CXS group, PSI                                          |
+%*-----------------------------------------------------------------------*
+% You may use this code with the following provisions:
+%
+% If the code is fully or partially redistributed, or rewritten in another
+%   computing language this notice should be included in the redistribution.
+%
+% If this code, or subfunctions or parts of it, is used for research in a 
+%   publication or if it is fully or partially rewritten for another 
+%   computing language the authors and institution should be acknowledged 
+%   in written form in the publication: “Data processing was carried out 
+%   using the “cSAXS matlab package” developed by the CXS group,
+%   Paul Scherrer Institut, Switzerland.” 
+%   Variations on the latter text can be incorporated upon discussion with 
+%   the CXS group if needed to more specifically reflect the use of the package 
+%   for the published work.
+%
+% A publication that focuses on describing features, or parameters, that
+%    are already existing in the code should be first discussed with the
+%    authors.
+%   
+% This code and subroutines are part of a continuous development, they 
+%    are provided “as they are” without guarantees or liability on part
+%    of PSI or the authors. It is the user responsibility to ensure its 
+%    proper use and the correctness of the results.
+
+
+
+function base_package_path = find_base_package()
+    maxdepth = 3;
+	test_path = '+math'; % one file to find them all
+    
+    lvl = 1;
+    cpath = '';
+    ret = '';
+    while isempty(ret) && ~contains(strtrim(ret), test_path)
+        [~, ret] = system(sprintf('find -L %s -maxdepth 2 -type d -name "%s"', cpath, test_path));
+        if lvl > maxdepth
+            break
+        end
+        lvl = lvl + 1;
+        cpath = [cpath '../'];
+    end
+    ret = split(ret); 
+    base_package_path = strtrim(ret{1}); 
+    base_package_path = base_package_path(1:end-length(test_path));
+
+    if isempty(base_package_path)
+        error('cSAXS base package was not found')
+    end
+end