ENH: Add -cover_exclude option for excluding patterns

This adds an option to the API to specify patterns which should not
be included in the coverage report.

Closes MOxUnit#4.

MOcov/@MOcovMFileCollection/MOcovMFileCollection.m

@@ -1,4 +1,4 @@
-function obj=MOcovMFileCollection(root_dir, method, monitor)
+function obj=MOcovMFileCollection(root_dir, method, monitor, exclude_pat)
 % instantiate MOcovMFileCollection
 %
 % obj=MOcovMFileCollection(root_dir, method, monitor)
@@ -13,9 +13,14 @@
 %                           - 'profile' use Matlab profiler
 %                           default: 'file'
 %   monitor                 optional MOcovProgressMonitor instance
+%   exclude_pat             Optional cell array of patterns to exclude.
 %
 % See also: mocov
 
+    if nargin<4 || isempty(exclude_pat)
+        exclude_pat={};
+    end
+
     if nargin<3 || isempty(monitor)
         monitor=MOcovProgressMonitor();
     end
@@ -27,6 +32,7 @@
     props=struct();
     props.root_dir=root_dir;
     props.monitor=monitor;
+    props.exclude_pat=exclude_pat;
     props.mfiles=[];
     props.orig_path=[];
     props.temp_dir=[];

MOcov/@MOcovMFileCollection/prepare.m

@@ -14,7 +14,7 @@
 
     monitor=obj.monitor;
 
-    fns=mocov_find_files(obj.root_dir,'*.m',monitor);
+    fns=mocov_find_files(obj.root_dir,'*.m',monitor,obj.exclude_pat);
     n=numel(fns);
 
     mfiles=cell(n,1);

MOcov/mocov.m

@@ -16,6 +16,10 @@
 %                               Mutually exclusive with '-e' option.
 %   '-cover', covd              Find coverage for files in dir covd and all
 %                               of its subdirectories
+%   '-cover_exclude', pat       (optional) Exclude files and directories
+%                               which match this pattern, even if they are
+%                               in covd. Can be used multiple times to
+%                               specify multiple patterns to match.
 %   '-cover_json_file', cj      (optional) Store coverage information in
 % `                             file cj in JSON format [use with coveralls]
 %   '-cover_xml_file', xc       (optional) Store coverage information in
@@ -81,7 +85,8 @@
     monitor=MOcovProgressMonitor(opt.verbose);
     mfile_collection=MOcovMFileCollection(opt.cover,...
                                                     opt.method,...
-                                                    monitor);
+                                                    monitor,...
+                                                    opt.excludes);
     mfile_collection=prepare(mfile_collection);
     cleaner_collection=onCleanup(@()cleanup(mfile_collection));                                                    
 
@@ -151,6 +156,7 @@ function write_coverage_results(writers, mfile_collection, opt)
 
     defaults=struct();
     defaults.coverage_dir=pwd();
+    defaults.excludes={};
     defaults.html_dir=[];
     defaults.cobertura_xml=[];
     defaults.coveralls_json=[];
@@ -185,6 +191,10 @@ function write_coverage_results(writers, mfile_collection, opt)
                     k=k+1;
                     opt.cover=varargin{k};
 
+                case '-cover_exclude'
+                    k=k+1;
+                    opt.excludes(end+1)=varargin(k);
+
                 case '-verbose'
                     opt.verbose=opt.verbose+1;