use phpstan paths

.gitignore

@@ -13,3 +13,5 @@ rector-symfony.yml
 
 # often customized locally - example on Github is just fine
 create-rector.yml
+phpstan-dependencies.json
+phpstan-paths.txt

.travis.yml

@@ -31,7 +31,7 @@ script:
     - |
       if [[ $STATIC_ANALYSIS == true ]]; then
           composer check-cs
-          composer phpstan
+          composer phpstan-ci
       fi
 
     # Rector demo run

composer.json

@@ -100,7 +100,11 @@
             "vendor/bin/ecs check bin packages src tests --fix",
             "bin/clean_trailing_spaces.sh"
         ],
-        "phpstan": "vendor/bin/phpstan analyse packages src tests",
+        "phpstan-ci": "vendor/bin/phpstan analyse packages src tests",
+        "phpstan": [
+            "php utils/phpstan/generate-paths.php",
+            "vendor/bin/phpstan analyse --paths-file phpstan-paths.txt"
+        ],
         "docs": "bin/rector generate-docs > docs/AllRectorsOverview.md"
     },
     "scripts-descriptions": {

phpstan.neon

@@ -9,6 +9,7 @@ parameters:
     level: 7
 
     excludes_analyse:
+        - "utils/phpstan/generate-paths.php"
         # test files
         - '*packages/NodeTypeResolver/tests/Source/AnotherClass.php'
         - '*tests/Rector/MethodCall/MethodNameReplacerRector/**/SomeClass.php'

utils/phpstan/generate-paths.php

@@ -0,0 +1,79 @@
+<?php
+
+// experimental, phpstan 0.10.7
+// @todo refactor to classes later, if proven working
+
+use Nette\Utils\FileSystem;
+use Nette\Utils\Json;
+use Nette\Utils\Strings;
+use Symfony\Component\Process\Process;
+use Symplify\PackageBuilder\Console\Style\SymfonyStyleFactory;
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+$phpstanDependencies = __DIR__ . '/../../phpstan-dependencies.json';
+$symfonyStyle = (new SymfonyStyleFactory())->create();
+
+// prepare dependencies.json
+if (! file_exists($phpstanDependencies)) {
+    $process = Process::fromShellCommandline('vendor/bin/phpstan dump-deps src packages > phpstan-dependencies.json');
+    $symfonyStyle->note('Dumping dependencies (will take ~10 s)');
+    $process->run();
+}
+
+$fileDependenciesJson = Json::decode(FileSystem::read($phpstanDependencies), Json::FORCE_ARRAY);
+
+$changedFiles = resolveChangedFiles();
+
+$filesToCheck = [];
+foreach ($changedFiles as $changedFile) {
+    $changedFile = getcwd() . '/' . $changedFile;
+    if (isset($fileDependenciesJson[$changedFile])) {
+        $filesToCheck = array_merge($filesToCheck, $fileDependenciesJson[$changedFile], [$changedFile]);
+    }
+}
+
+$newFiles = resolveNewFiles();
+
+$filesToCheck = array_merge($filesToCheck, $newFiles);
+$filesToCheckString = implode(PHP_EOL, $filesToCheck);
+
+FileSystem::write('phpstan-paths.txt', $filesToCheckString);
+
+$symfonyStyle->success(sprintf('%d paths generated to "phpstan-paths.txt"', count($filesToCheck)));
+
+/**
+ * @return string[]
+ */
+function resolveChangedFiles(): array
+{
+    $process = Process::fromShellCommandline('git status -s');
+    $process->run();
+
+    $gitStatusOutput = $process->getOutput();
+
+    $files = [];
+    foreach (Strings::matchAll($gitStatusOutput, '# ([\w\/]+\.php)#m') as $match) {
+        $files[] = $match[1];
+    }
+
+    return $files;
+}
+
+/**
+ * @return string[]
+ */
+function resolveNewFiles(): array
+{
+    $process = Process::fromShellCommandline('git status -s');
+    $process->run();
+
+    $gitStatusOutput = $process->getOutput();
+
+    $files = [];
+    foreach (Strings::matchAll($gitStatusOutput, '#\?\? ([\w\/]+)#m') as $match) {
+        $files[] = getcwd() . '/' . $match[1];
+    }
+
+    return $files;
+}