Remove util/docblox_errorchecker
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Hypolite Petovan
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db013ce6ee
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<?php
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/**
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* When I installed docblox, I had the experience that it does not generate any output at all.
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* This script may be used to find that kind of problems with the documentation build process.
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* If docblox generates output, use another approach for debugging.
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*
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* Basically, docblox takes a list of files to build documentation from. This script assumes there is a file or set of files
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* breaking the build when it is included in that list. It tries to calculate the smallest list containing these files.
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* Unfortunatly, the original problem is NP-complete, so what the script does is a best guess only.
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*
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* So it starts with a list of all files in the project.
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* If that list can't be build, it cuts it in two parts and tries both parts independently. If only one of them breaks,
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* it takes that one and tries the same independently. If both break, it assumes this is the smallest set. This assumption
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* is not necessarily true. Maybe the smallest set consists of two files and both of them were in different parts when
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* the list was divided, but by now it is my best guess. To make this assumption better, the list is shuffled after every step.
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*
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* After that, the script tries to remove a file from the list. It tests if the list breaks and if so, it
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* assumes that the file it removed belongs to the set of errorneous files.
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* This is done for all files, so, in the end removing one file leads to a working doc build.
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*
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* @package util
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* @author Alexander Kampmann
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*/
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/**
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* This function generates a comma seperated list of file names.
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*
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* @package util
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*
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* @param array $fileset Set of file names
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*
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* @return string comma-seperated list of the file names
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*/
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function namesList($fileset) {
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$fsparam="";
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foreach($fileset as $file) {
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$fsparam=$fsparam.",".$file;
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}
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return $fsparam;
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};
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/**
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* This functions runs phpdoc on the provided list of files
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* @package util
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*
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* @param array $fileset Set of filenames
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*
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* @return bool true, if that set can be built
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*/
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function runs($fileset) {
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$fsParam=namesList($fileset);
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exec('docblox -t phpdoc_out -f '.$fsParam);
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if(file_exists("phpdoc_out/index.html")) {
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echo "\n Subset ".$fsParam." is okay. \n";
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exec('rm -r phpdoc_out');
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return true;
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} else {
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echo "\n Subset ".$fsParam." failed. \n";
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return false;
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}
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};
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/**
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* This functions cuts down a fileset by removing files until it finally works.
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* it was meant to be recursive, but php's maximum stack size is to small. So it just simulates recursion.
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*
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* In that version, it does not necessarily generate the smallest set, because it may not alter the elements order enough.
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*
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* @package util
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*
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* @param array $fileset set of filenames
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* @param int $ps number of files in subsets
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*
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* @return array a part of $fileset, that crashes
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*/
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function reduce($fileset, $ps) {
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//split array...
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$parts=array_chunk($fileset, $ps);
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//filter working subsets...
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$parts=array_filter($parts, "runs");
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//melt remaining parts together
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if(is_array($parts)) {
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return array_reduce($parts, "array_merge", []);
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}
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return [];
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};
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//return from util folder to frindica base dir
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$dir='..';
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//stack for dirs to search
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$dirstack=[];
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//list of source files
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$filelist=[];
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//loop over all files in $dir
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while($dh=opendir($dir)) {
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while($file=readdir($dh)) {
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if(is_dir($dir."/".$file)) {
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//add to directory stack
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if($file!=".." && $file!=".") {
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array_push($dirstack, $dir."/".$file);
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echo "dir ".$dir."/".$file."\n";
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}
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} else {
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//test if it is a source file and add to filelist
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if(substr($file, strlen($file)-4)==".php") {
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array_push($filelist, $dir."/".$file);
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echo $dir."/".$file."\n";
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}
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}
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}
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//look at the next dir
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$dir=array_pop($dirstack);
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}
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//check the entire set
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if(runs($filelist)) {
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echo "I can not detect a problem. \n";
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exit;
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}
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//check half of the set and discard if that half is okay
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$res=$filelist;
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$i=0;
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do {
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$i=count($res);
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echo $i."/".count($fileset)." elements remaining. \n";
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$res=reduce($res, count($res)/2);
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shuffle($res);
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} while(count($res)<$i);
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//check one file after another
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$needed=[];
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while(count($res)!=0) {
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$file=array_pop($res);
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if(runs(array_merge($res, $needed))) {
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echo "needs: ".$file." and file count ".count($needed);
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array_push($needed, $file);
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}
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}
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echo "\nSmallest Set is: ".namesList($needed)." with ".count($needed)." files. ";
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