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function check_matlab_path(change_path_flag)
% Copyright (C) 2015-2017 Dynare Team
%
% This file is part of Dynare.
%
% Dynare is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
if ~nargin || isempty(change_path_flag)
change_path_flag = true;
end
% Get path to dynare/matlab folder.
DYNARE_PATH = strrep(which('dynare'),'dynare.m','');
if isempty(DYNARE_PATH)
% Nothing to do here (this case should not happen)
disp('dynare.m is not in the Matlab''s path.')
return
else
% Removes trailing slash.
DYNARE_PATH = DYNARE_PATH(1:end-1);
end
% Get matlab path
MATLAB_PATH = path();
if isoctave
% Octave always has '.' at the top of the path, so remove '.:'
MATLAB_PATH = MATLAB_PATH(3:end);
end
% Position of DYNARE_PATH in MATLAB_PATH
idDYNARE = strfind(MATLAB_PATH,DYNARE_PATH);
if isempty(idDYNARE)
disp('dynare.m is not in the Matlab''s path.')
return
else
if isequal(length(idDYNARE),1)
if isequal(idDYNARE, 1)
% Dynare is on top of matlab's path! Nothing to do here...
return
else
str0 = sprintf('Dynare is not on top of the Matlab/Octave path!');
% Check that this will not create a problem
MATLAB_PATH_ = path2cell(MATLAB_PATH);
DYNARE_ROUTINES = getallroutinenames(DYNARE_PATH, getalldirectories(DYNARE_PATH));
MATLAB_ROUTINES = {};
for i=1:position(idDYNARE, MATLAB_PATH)
TMP_MATLAB_ROUTINES = getallroutinenames(MATLAB_PATH_{i});
MATLAB_ROUTINES = { MATLAB_ROUTINES{:} TMP_MATLAB_ROUTINES{:} };
end
COMMON_ROUTINES = intersect(MATLAB_ROUTINES, DYNARE_ROUTINES);
if ~isempty(COMMON_ROUTINES)
warning off backtrace
skipline()
if length(COMMON_ROUTINES)==1
warning(sprintf('%s This can cause problems because the Dynare implementation of %s will be overriden.', str0, COMMON_ROUTINES{1}));
else
str1 = repmat('%s, ', 1, length(COMMON_ROUTINES)-1);
str2 = 'and %s ';
str3 = sprintf(['%s This can cause problems because the Dynare implementations of ' str1, str2, 'will be overriden.'], str0, COMMON_ROUTINES{:});
warning(str3);
end
if change_path_flag
skipline()
msg = sprintf(['I put %s on top of your Matlab/Ocatve path.' ...
'\nNote that this is a temporary change (i.e. it will not affect future Matlab/Octave sessions).\n' ...
'\nIf the ordering was intentional, i.e. if you really want to override the routines distributed with Dynare,' ...
' you can change this behavior using the ''nopathchange'' option (see the reference manual).'], DYNARE_PATH);
warning(msg);
skipline()
rmpath(DYNARE_PATH)
addpath(DYNARE_PATH)
end
warning on backtrace
end
end
else
% Check that the user did not put all the subfolders in the path.
% => If DYNARE_PATH/qz is in the path while mjdgges dll is available
% it most likely means that user wrongly put all subfolders in the
% matlab's path!
mexpath = add_path_to_mex_files([DYNARE_PATH filesep], false);
MATLAB_PATH = path2cell(MATLAB_PATH);
for i=1:length(mexpath)
if exist([mexpath{i} filesep 'mjdgges.' mexext],'file') && ismember([DYNARE_PATH filesep 'qz'],MATLAB_PATH)
msg = sprintf(['You put all the subfolders of the Dynare matlab folder in the Matlab/Octave path! Only ' ...
'the dynare ' filesep 'matlab folder (without subfolders)\nshould be in the ' ...
'path. Dynare automatically adds any required subfolders to the ' ...
'path.']);
error(msg)
end
end
end
end
function q = path2cell(p)
% Converts the output of path() to a cell
s = strfind(p,pathsep);
n = length(s)+1;
q = cell(n,1);
q(1) = {p(1:s(1)-1)};
q(n) = {p(s(end)+1:end)};
for i=2:n-1
q(i) = {p(s(i-1)+1:s(i)-1)};
end
function flist = getallroutinenames(p, excludedsubfolders)
if nargin<2
excludedsubfolders = {};
end
flist={};
%get m-files in this directory
dd = dir([p,filesep '*.m']);
temp=struct2cell(dd);
flist=[flist temp(1,:)];
%deal with subdirectories
dlist=getalldirectories(p,excludedsubfolders); %first call with excluded directories
for ii=1:length(dlist)
flist=[flist getallroutinenames([ p filesep dlist{ii}])]; %recursive calls without subfolders
end
function dlist = getalldirectories(p,excluded_directories)
if nargin<2
excluded_directories = {};
end
dd = dir(p);
dir_result=struct2cell(dd);
directory_indicator=cell2mat(dir_result(4,:));
dlist = dir_result(1,directory_indicator==1 & ~strcmp('.',dir_result(1,:)) & ~strcmp('..',dir_result(1,:)) & ~ismember(dir_result(1,:),excluded_directories));
function n = position(i, currentpath)
n = length(strfind(currentpath(1:i), pathsep));
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