9ee7d03e1c
package to read, consume, and analyze license metadata and dependency graph. Bug: 68860345 Bug: 151177513 Bug: 151953481 Change-Id: Ic08406fa2250a08ad26f2167d934f841c95d9148
92 lines
3.3 KiB
Go
92 lines
3.3 KiB
Go
// Copyright 2021 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package compliance
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import (
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"fmt"
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)
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// SourceSharePrivacyConflict describes an individual conflict between a source-sharing
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// condition and a source privacy condition
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type SourceSharePrivacyConflict struct {
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SourceNode *TargetNode
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ShareCondition LicenseCondition
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PrivacyCondition LicenseCondition
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}
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// Error returns a string describing the conflict.
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func (conflict SourceSharePrivacyConflict) Error() string {
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return fmt.Sprintf("%s %s from %s and must share from %s %s\n",
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conflict.SourceNode.name,
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conflict.PrivacyCondition.name, conflict.PrivacyCondition.origin.name,
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conflict.ShareCondition.name, conflict.ShareCondition.origin.name)
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}
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// IsEqualTo returns true when `conflict` and `other` describe the same conflict.
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func (conflict SourceSharePrivacyConflict) IsEqualTo(other SourceSharePrivacyConflict) bool {
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return conflict.SourceNode.name == other.SourceNode.name &&
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conflict.ShareCondition.name == other.ShareCondition.name &&
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conflict.ShareCondition.origin.name == other.ShareCondition.origin.name &&
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conflict.PrivacyCondition.name == other.PrivacyCondition.name &&
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conflict.PrivacyCondition.origin.name == other.PrivacyCondition.origin.name
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}
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// ConflictingSharedPrivateSource lists all of the targets where conflicting conditions to
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// share the source and to keep the source private apply to the target.
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func ConflictingSharedPrivateSource(lg *LicenseGraph) []SourceSharePrivacyConflict {
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// shareSource is the set of all source-sharing resolutions.
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shareSource := ResolveSourceSharing(lg)
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if shareSource.IsEmpty() {
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return []SourceSharePrivacyConflict{}
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}
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// privateSource is the set of all source privacy resolutions.
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privateSource := ResolveSourcePrivacy(lg)
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if privateSource.IsEmpty() {
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return []SourceSharePrivacyConflict{}
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}
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// combined is the combination of source-sharing and source privacy.
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combined := JoinResolutionSets(shareSource, privateSource)
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// size is the size of the result
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size := 0
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for _, actsOn := range combined.ActsOn() {
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rl := combined.ResolutionsByActsOn(actsOn)
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size += rl.CountConditionsByName(ImpliesShared) * rl.CountConditionsByName(ImpliesPrivate)
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}
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if size == 0 {
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return []SourceSharePrivacyConflict{}
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}
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result := make([]SourceSharePrivacyConflict, 0, size)
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for _, actsOn := range combined.ActsOn() {
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rl := combined.ResolutionsByActsOn(actsOn)
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if len(rl) == 0 {
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continue
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}
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pconditions := rl.ByName(ImpliesPrivate).AllConditions().AsList()
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ssconditions := rl.ByName(ImpliesShared).AllConditions().AsList()
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// report all conflicting condition combinations
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for _, p := range pconditions {
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for _, ss := range ssconditions {
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result = append(result, SourceSharePrivacyConflict{actsOn, ss, p})
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}
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}
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}
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return result
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}
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