mirror of https://github.com/harness/drone.git
125 lines
3.2 KiB
Go
125 lines
3.2 KiB
Go
// Copyright 2023 Harness, Inc.
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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 capabilities
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import (
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"context"
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"encoding/json"
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"fmt"
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"github.com/harness/gitness/types/capabilities"
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)
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// newLogic This function helps us adhere to the same function definition, across different capabilities
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// Each capability takes in an input and returns an output, by using this function, each capability can have its own
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// input and output definition.
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func newLogic[T capabilities.Input, U capabilities.Output](
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logic func(ctx context.Context, input T) (U, error)) capabilities.Logic {
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return func(ctx context.Context, input capabilities.Input) (capabilities.Output, error) {
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myInput, ok := input.(T)
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if !ok {
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return nil, fmt.Errorf("invalid input type")
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}
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return logic(ctx, myInput)
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}
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}
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func NewRegistry() *Registry {
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return &Registry{
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capabilities: make(map[capabilities.Type]capabilities.Capability),
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}
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}
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type Registry struct {
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capabilities map[capabilities.Type]capabilities.Capability
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}
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func (r *Registry) register(c capabilities.Capability) error {
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if _, ok := r.capabilities[c.Type]; ok {
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return fmt.Errorf("capability %q already registered", c.Type)
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}
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r.capabilities[c.Type] = c
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return nil
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}
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func (r *Registry) Exists(t capabilities.Type) bool {
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_, ok := r.capabilities[t]
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return ok
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}
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func (r *Registry) ReturnToUser(t capabilities.Type) (bool, error) {
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c, ok := r.capabilities[t]
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if !ok {
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return false, fmt.Errorf("unknown capability type %q", t)
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}
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return c.ReturnToUser, nil
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}
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func (r *Registry) Get(t capabilities.Type) (capabilities.Capability, bool) {
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c, ok := r.capabilities[t]
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return c, ok
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}
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func (r *Registry) Execute(
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ctx context.Context, t capabilities.Type, in capabilities.Input) (capabilities.Output, error) {
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c, ok := r.Get(t)
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if !ok {
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return nil, fmt.Errorf("unknown capability type %q", t)
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}
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out, err := c.Logic(ctx, in)
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if err != nil {
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return nil, fmt.Errorf("failed execution: %w", err)
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}
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return out, nil
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}
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func DeserializeInput(cr *Registry, t capabilities.Type, raw json.RawMessage) (capabilities.Input, error) {
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capability, ok := cr.Get(t)
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if !ok {
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return nil, fmt.Errorf("unknown type: %s", t)
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}
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input := capability.NewInput()
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err := json.Unmarshal(raw, input)
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if err != nil {
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return nil, fmt.Errorf("failed to unmarshal input: %w", err)
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}
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return input, nil
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}
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func (r *Registry) Capabilities() []capabilities.CapabilityReference {
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var capabilitiesList []capabilities.CapabilityReference
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for _, capability := range r.capabilities {
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c := capabilities.CapabilityReference{
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Type: capability.Type,
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Version: capability.Version,
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}
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capabilitiesList = append(capabilitiesList, c)
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}
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return capabilitiesList
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}
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type RepoRef struct {
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Ref string `json:"ref"`
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}
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func (RepoRef) IsCapabilityOutput() {}
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