fix(deps): update to actionslib v1.0.0 (#1221)

Updates `gitea.dev/actionslib` to v1.0.0, see https://gitea.com/gitea/actionslib/pulls/17:

1. First-party expression parser passing GitHub's full conformance suite, replacing actionlint
1. Expression results match GitHub, including truthiness, numbers, `fromJSON`, `toJSON` and `hashFiles` cache keys
1. Whole-value `${{ }}` works for `strategy`, `env`, `with`, `services` and `outputs`
1. Matrix validation matches GitHub

---------

Co-authored-by: bircni <bircni@icloud.com>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1221
Reviewed-by: bircni <bircni@icloud.com>
Co-authored-by: silverwind <me@silverwind.io>

internal/pkg/config/config.go

@@ -391,10 +391,10 @@ func warnUnknownKeys(file string, content []byte) {
 	decoder := yaml.NewDecoder(bytes.NewReader(content))
 	decoder.KnownFields(true)
 
-	var typeErr *yaml.TypeError
-	if err := decoder.Decode(&Config{}); errors.As(err, &typeErr) {
-		for _, message := range typeErr.Errors {
-			log.Warnf("config file %q: %s, it will be ignored", file, message)
+	var loadErrs *yaml.LoadErrors
+	if err := decoder.Decode(&Config{}); errors.As(err, &loadErrs) {
+		for _, loadErr := range loadErrs.Errors {
+			log.Warnf("config file %q: %s, it will be ignored", file, loadErr)
 		}
 	}
 }

internal/pkg/config/edit.go

@@ -312,7 +312,19 @@ func allScalars(nodes []*yaml.Node) bool {
 	return true
 }
 
+// quoteLeadingNewlines keeps a scalar starting with a newline out of block style, whose indentation indicator the encoder drops.
+// TODO: remove once https://github.com/yaml/go-yaml/pull/396 is released.
+func quoteLeadingNewlines(node *yaml.Node) {
+	if node.Kind == yaml.ScalarNode && strings.HasPrefix(node.Value, "\n") {
+		node.Style = yaml.DoubleQuotedStyle
+	}
+	for _, child := range node.Content {
+		quoteLeadingNewlines(child)
+	}
+}
+
 func encodeYAML(node *yaml.Node) ([]byte, error) {
+	quoteLeadingNewlines(node)
 	var buf bytes.Buffer
 	encoder := yaml.NewEncoder(&buf)
 	encoder.SetIndent(2)

internal/pkg/config/edit_test.go

@@ -74,6 +74,13 @@ func TestEditValues(t *testing.T) {
 				assert.Equal(t, map[string]string{"EXISTING": "value", "ADDED": "yes"}, cfg.Runner.Envs)
 			},
 		},
+		{
+			name: "set map entry starting with a newline before an indented line",
+			edit: func(file string) error { return SetValue(file, "runner.envs.ADDED", "\n  indented\nplain\n") },
+			assert: func(t *testing.T, cfg *Config, _ string) {
+				assert.Equal(t, "\n  indented\nplain\n", cfg.Runner.Envs["ADDED"])
+			},
+		},
 		{
 			name: "set replaces a list",
 			edit: func(file string) error { return SetValue(file, "runner.labels", "one", "two") },