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|
package npm
import (
"encoding/json"
"io"
"github.com/aquasecurity/go-dep-parser/pkg/types"
"golang.org/x/xerrors"
)
type LockFile struct {
Dependencies map[string]Dependency
}
type Dependency struct {
Version string
Dev bool
Dependencies map[string]Dependency
}
func Parse(r io.Reader) ([]types.Library, error) {
var lockFile LockFile
decoder := json.NewDecoder(r)
err := decoder.Decode(&lockFile)
if err != nil {
return nil, xerrors.Errorf("decode error: %w", err)
}
libs := parse(lockFile.Dependencies)
return unique(libs), nil
}
func parse(dependencies map[string]Dependency) []types.Library {
var libs []types.Library
for pkgName, dependency := range dependencies {
if dependency.Dev {
continue
}
libs = append(libs, types.Library{
Name: pkgName,
Version: dependency.Version,
})
if dependency.Dependencies != nil {
// Recursion
libs = append(libs, parse(dependency.Dependencies)...)
}
}
return libs
}
func unique(libs []types.Library) []types.Library {
var uniqLibs []types.Library
unique := map[types.Library]struct{}{}
for _, lib := range libs {
if _, ok := unique[lib]; !ok {
unique[lib] = struct{}{}
uniqLibs = append(uniqLibs, lib)
}
}
return uniqLibs
}
|
