Add test_flags input

The input sets the command-line flags provided to `makepkg` when
trying to build the package (if the `test` option is enabled).
The input is optional and its default value is the same as before
introducing this input.

README.md

@@ -25,6 +25,10 @@ Glob patterns will be expanded by bash when copying the files to the repository.
 
 **Optional** Check that PKGBUILD could be built.
 
+### `test_flags`
+
+**Optional** Command line flags for makepkg to build the package (if `test` is enabled). The default flags are `--clean --cleanbuild --nodeps`.
+
 ### `commit_username`
 
 **Required** The username to use when creating the new commit.

action.yml

@@ -23,6 +23,10 @@ inputs:
     description: 'Check that PKGBUILD could be built'
     required: false
     default: 'false'
+  test_flags:
+    description: 'Command line flags for makepkg to build the package (if `test` is enabled)'
+    required: false
+    default: '--clean --cleanbuild --nodeps'
   commit_username:
     description: 'The username to use when creating the new commit'
     required: true

build.sh

@@ -8,6 +8,7 @@ pkgbuild=$INPUT_PKGBUILD
 assets=$INPUT_ASSETS
 updpkgsums=$INPUT_UPDPKGSUMS
 test=$INPUT_TEST
+test_flags=$INPUT_TEST_FLAGS
 commit_username=$INPUT_COMMIT_USERNAME
 commit_email=$INPUT_COMMIT_EMAIL
 ssh_private_key=$INPUT_SSH_PRIVATE_KEY
@@ -82,7 +83,7 @@ fi
 if [ "$test" == "true" ]; then
 	echo '::group::Building package with makepkg'
 	cd /tmp/local-repo/
-	makepkg --clean --cleanbuild --nodeps
+	makepkg $test_flags
 	echo '::endgroup::'
 fi