Rename scripts to build and add revive command as a new build tool command (#10942)

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

vendor/github.com/mgechev/revive/rule/range.go

@@ -0,0 +1,82 @@
+package rule
+
+import (
+	"fmt"
+	"go/ast"
+	"strings"
+
+	"github.com/mgechev/revive/lint"
+)
+
+// RangeRule lints given else constructs.
+type RangeRule struct{}
+
+// Apply applies the rule to given file.
+func (r *RangeRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure {
+	var failures []lint.Failure
+
+	onFailure := func(failure lint.Failure) {
+		failures = append(failures, failure)
+	}
+
+	w := &lintRanges{file, onFailure}
+	ast.Walk(w, file.AST)
+	return failures
+}
+
+// Name returns the rule name.
+func (r *RangeRule) Name() string {
+	return "range"
+}
+
+type lintRanges struct {
+	file      *lint.File
+	onFailure func(lint.Failure)
+}
+
+func (w *lintRanges) Visit(node ast.Node) ast.Visitor {
+	rs, ok := node.(*ast.RangeStmt)
+	if !ok {
+		return w
+	}
+	if rs.Value == nil {
+		// for x = range m { ... }
+		return w // single var form
+	}
+	if !isIdent(rs.Value, "_") {
+		// for ?, y = range m { ... }
+		return w
+	}
+
+	newRS := *rs // shallow copy
+	newRS.Value = nil
+
+	w.onFailure(lint.Failure{
+		Failure:         fmt.Sprintf("should omit 2nd value from range; this loop is equivalent to `for %s %s range ...`", w.file.Render(rs.Key), rs.Tok),
+		Confidence:      1,
+		Node:            rs.Value,
+		ReplacementLine: firstLineOf(w.file, &newRS, rs),
+	})
+
+	return w
+}
+
+func firstLineOf(f *lint.File, node, match ast.Node) string {
+	line := f.Render(node)
+	if i := strings.Index(line, "\n"); i >= 0 {
+		line = line[:i]
+	}
+	return indentOf(f, match) + line
+}
+
+func indentOf(f *lint.File, node ast.Node) string {
+	line := srcLine(f.Content(), f.ToPosition(node.Pos()))
+	for i, r := range line {
+		switch r {
+		case ' ', '\t':
+		default:
+			return line[:i]
+		}
+	}
+	return line // unusual or empty line
+}