fix

Author: staabm

.gitignore

@@ -4,6 +4,8 @@
 /conf/config.local.yml
 /build-cs
 /build-infection
+/infection.json5
+/infection.phar
 /vendor
 /.idea/*
 !.idea/icon.png

Makefile

@@ -171,16 +171,17 @@ infection:
 	git -C build-infection pull || git clone https://github.com/phpstan/build-infection.git
 	git -C build-infection fetch origin && git -C build-infection reset --hard origin/1.x
 	composer install --working-dir build-infection --no-interaction --no-progress
-	php build-infection/bin/infection-config.php --source-directory='build/PHPStan/Build'> tmp/infection.json5
+	php build-infection/bin/infection-config.php --source-directory='build/PHPStan/Build'> infection.json5
 	XDEBUG_MODE=coverage php tests/vendor/bin/paratest \
 	  --coverage-xml=tmp/coverage/coverage-xml \
 	  --log-junit=tmp/coverage/junit.xml
-	baseBranch=$(shell git symbolic-ref refs/remotes/${remote:-origin}/HEAD | sed 's,.*/,,') \
-	php build-infection/vendor/bin/infection \
-	  --configuration=tmp/infection.json5 \
-	  --git-diff-base=origin/$$baseBranch \
-	  --git-diff-lines \
-	  --coverage=tmp/coverage \
-	  --skip-initial-tests \
-	  --ignore-msi-with-no-mutations \
-	  --logger-text=php://stdout
+	version=$(shell jq -r '.packages[] | select(.name == "infection/infection") | .version' build-infection/composer.lock); \
+	  wget https://github.com/infection/infection/releases/download/$$version/infection.phar --no-clobber;
+	php infection.phar \
+		--configuration=infection.json5 \
+		--git-diff-base=origin/2.1.x \
+		--git-diff-lines \
+		--coverage=tmp/coverage \
+		--skip-initial-tests \
+		--ignore-msi-with-no-mutations \
+		--logger-text=php://stdout;