update dependencies

.editorconfig

@@ -0,0 +1,27 @@
+root = true
+
+[*]
+ij_php_block_brace_style = end_of_line
+ij_php_class_brace_style = end_of_line
+ij_php_for_brace_force = always
+ij_php_method_brace_style = end_of_line
+ij_php_space_after_type_cast = true
+ij_php_space_after_colon_in_return_type = true
+ij_php_blank_lines_after_imports = 1
+ij_php_blank_lines_before_imports = 1
+ij_php_align_class_constants = true
+ij_php_align_assignments = true
+ij_php_align_inline_comments = true
+ij_php_align_key_value_pairs = true
+ij_php_align_group_field_declarations = true
+ij_php_align_multiline_array_initializer_expression = true
+ij_php_align_multiline_for = true
+ij_php_align_phpdoc_comments = true
+ij_php_align_phpdoc_param_names = true
+ij_php_import_sorting = alphabetic
+ij_php_blank_lines_after_class_header = 1
+ij_php_blank_lines_before_class_end = 1
+ij_php_else_if_style = as_is
+ij_php_else_on_new_line = false
+ij_php_special_else_if_treatment = true
+ij_php_if_brace_force = if_multiline

composer.json

@@ -18,10 +18,25 @@
   "require": {
     "doganoo/php-algorithms": "^1.0",
     "doganoo/php-util": "~0.3.0",
-    "ext-json": "*",
-    "phpstan/phpstan": "^0.12.30"
+    "ext-json": "*"
   },
   "require-dev": {
-    "phpunit/phpunit": "6.5"
+    "phpunit/phpunit": "6.5",
+    "ergebnis/composer-normalize": "^2.28",
+    "phpstan/phpstan": "^1.8",
+    "squizlabs/php_codesniffer": "^3.7",
+    "phpcompatibility/php-compatibility": "^9.3"
+  },
+  "config": {
+    "allow-plugins": {
+      "ergebnis/composer-normalize": true
+    }
+  },
+  "scripts": {
+    "add-php-compatibility": "\"vendor/bin/phpcs\" --config-set installed_paths vendor/phpcompatibility/php-compatibility",
+    "php-compatibility": "./vendor/bin/phpcs -p . --standard=PHPCompatibility --runtime-set testVersion 7.4-8.1 --extensions=php --ignore=vendor/",
+    "phpstan": "./vendor/bin/phpstan analyse -c config/phpstan/phpstan.neon src/ test/ --level 9 --memory-limit=2G",
+    "phpstan-baseline": "./vendor/bin/phpstan analyse -c config/phpstan/phpstan.neon src/ test/ --level 9 --memory-limit=2G --generate-baseline config/phpstan/baseline.neon",
+    "test": "./vendor/bin/phpunit --configuration phpunit.xml --verbose"
   }
 }