Function parseMvnTree

opensca/sca/java/mvn.go:586–647

parseMvnTree 解析 mvn dependency:tree 的输出

(lines []string)

// parseMvnTree 解析 mvn dependency:tree 的输出
func parseMvnTree(lines []string) *model.DepGraph {

	// 记录当前的顶点节点列表
	var tops = []*model.DepGraph{}
	// 上一层级
	lastLevel := -1

	_dep := model.NewDepGraphMap(nil, func(s ...string) *model.DepGraph {
		return &model.DepGraph{
			Vendor:  s[0],
			Name:    s[1],
			Version: s[2],
		}
	}).LoadOrStore

	for _, line := range lines {

		// 计算层级
		level := 0
		for level*3+2 < len(line) && line[level*3+2] == ' ' {
			level++
		}
		if level*3+2 >= len(line) {
			continue
		}

		if level-lastLevel > 1 {
			// 在某个依赖解析失败的时候 子依赖会出现这种情况
			continue
		}

		tags := strings.Split(line[level*3:], ":")
		if len(tags) < 4 {
			continue
		}

		dep := _dep(tags[0], tags[1], tags[3])

		if dep == nil {
			continue
		}

		scope := tags[len(tags)-1]
		if scope == "test" || scope == "provided" {
			dep.Develop = true
		}

		if level > 0 {
			tops[level-1].AppendChild(dep)
		}

		tops = append(tops[:level], dep)

		lastLevel = level
	}

	if len(tops) > 0 {
		return tops[0]