312 lines
10 KiB
Go
312 lines
10 KiB
Go
// Copyright 2024 The Forgejo Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package sourcehut
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import (
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"cmp"
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"context"
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"fmt"
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"html/template"
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"io/fs"
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"net/http"
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"strings"
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webhook_model "code.gitea.io/gitea/models/webhook"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/gitrepo"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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api "code.gitea.io/gitea/modules/structs"
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webhook_module "code.gitea.io/gitea/modules/webhook"
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gitea_context "code.gitea.io/gitea/services/context"
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"code.gitea.io/gitea/services/forms"
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"code.gitea.io/gitea/services/webhook/shared"
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"gitea.com/go-chi/binding"
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"gopkg.in/yaml.v3"
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)
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type BuildsHandler struct{}
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func (BuildsHandler) Type() webhook_module.HookType { return webhook_module.SOURCEHUT_BUILDS }
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func (BuildsHandler) Metadata(w *webhook_model.Webhook) any {
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s := &BuildsMeta{}
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if err := json.Unmarshal([]byte(w.Meta), s); err != nil {
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log.Error("sourcehut.BuildsHandler.Metadata(%d): %v", w.ID, err)
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}
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return s
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}
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func (BuildsHandler) Icon(size int) template.HTML {
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return shared.ImgIcon("sourcehut.svg", size)
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}
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type buildsForm struct {
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forms.WebhookCoreForm
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PayloadURL string `binding:"Required;ValidUrl"`
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ManifestPath string `binding:"Required"`
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Visibility string `binding:"Required;In(PUBLIC,UNLISTED,PRIVATE)"`
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Secrets bool
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}
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var _ binding.Validator = &buildsForm{}
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// Validate implements binding.Validator.
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func (f *buildsForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
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ctx := gitea_context.GetWebContext(req)
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if !fs.ValidPath(f.ManifestPath) {
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errs = append(errs, binding.Error{
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FieldNames: []string{"ManifestPath"},
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Classification: "",
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Message: ctx.Locale.TrString("repo.settings.add_webhook.invalid_path"),
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})
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}
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if !strings.HasPrefix(f.AuthorizationHeader, "Bearer ") {
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errs = append(errs, binding.Error{
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FieldNames: []string{"AuthorizationHeader"},
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Classification: "",
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Message: ctx.Locale.TrString("form.required_prefix", "Bearer "),
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})
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}
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return errs
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}
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func (BuildsHandler) UnmarshalForm(bind func(any)) forms.WebhookForm {
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var form buildsForm
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bind(&form)
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return forms.WebhookForm{
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WebhookCoreForm: form.WebhookCoreForm,
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URL: form.PayloadURL,
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ContentType: webhook_model.ContentTypeJSON,
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Secret: "",
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HTTPMethod: http.MethodPost,
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Metadata: &BuildsMeta{
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ManifestPath: form.ManifestPath,
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Visibility: form.Visibility,
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Secrets: form.Secrets,
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},
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}
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}
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type (
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graphqlPayload[V any] struct {
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Query string `json:"query,omitempty"`
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Error string `json:"error,omitempty"`
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Variables V `json:"variables,omitempty"`
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}
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// buildsVariables according to https://man.sr.ht/builds.sr.ht/graphql.md
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buildsVariables struct {
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Manifest string `json:"manifest"`
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Tags []string `json:"tags"`
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Note string `json:"note"`
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Secrets bool `json:"secrets"`
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Execute bool `json:"execute"`
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Visibility string `json:"visibility"`
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}
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// BuildsMeta contains the metadata for the webhook
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BuildsMeta struct {
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ManifestPath string `json:"manifest_path"`
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Visibility string `json:"visibility"`
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Secrets bool `json:"secrets"`
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}
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)
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type sourcehutConvertor struct {
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ctx context.Context
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meta BuildsMeta
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}
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var _ shared.PayloadConvertor[graphqlPayload[buildsVariables]] = sourcehutConvertor{}
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func (BuildsHandler) NewRequest(ctx context.Context, w *webhook_model.Webhook, t *webhook_model.HookTask) (*http.Request, []byte, error) {
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meta := BuildsMeta{}
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if err := json.Unmarshal([]byte(w.Meta), &meta); err != nil {
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return nil, nil, fmt.Errorf("newSourcehutRequest meta json: %w", err)
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}
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pc := sourcehutConvertor{
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ctx: ctx,
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meta: meta,
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}
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return shared.NewJSONRequest(pc, w, t, false)
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}
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// Create implements PayloadConvertor Create method
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func (pc sourcehutConvertor) Create(p *api.CreatePayload) (graphqlPayload[buildsVariables], error) {
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return pc.newPayload(p.Repo, p.Sha, p.Ref, p.RefType+" "+git.RefName(p.Ref).ShortName()+" created", true)
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}
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// Delete implements PayloadConvertor Delete method
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func (pc sourcehutConvertor) Delete(_ *api.DeletePayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Fork implements PayloadConvertor Fork method
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func (pc sourcehutConvertor) Fork(_ *api.ForkPayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Push implements PayloadConvertor Push method
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func (pc sourcehutConvertor) Push(p *api.PushPayload) (graphqlPayload[buildsVariables], error) {
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return pc.newPayload(p.Repo, p.HeadCommit.ID, p.Ref, p.HeadCommit.Message, true)
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}
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// Issue implements PayloadConvertor Issue method
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func (pc sourcehutConvertor) Issue(_ *api.IssuePayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// IssueComment implements PayloadConvertor IssueComment method
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func (pc sourcehutConvertor) IssueComment(_ *api.IssueCommentPayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// PullRequest implements PayloadConvertor PullRequest method
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func (pc sourcehutConvertor) PullRequest(_ *api.PullRequestPayload) (graphqlPayload[buildsVariables], error) {
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// TODO
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Review implements PayloadConvertor Review method
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func (pc sourcehutConvertor) Review(_ *api.PullRequestPayload, _ webhook_module.HookEventType) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Repository implements PayloadConvertor Repository method
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func (pc sourcehutConvertor) Repository(_ *api.RepositoryPayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Wiki implements PayloadConvertor Wiki method
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func (pc sourcehutConvertor) Wiki(_ *api.WikiPayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// Release implements PayloadConvertor Release method
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func (pc sourcehutConvertor) Release(_ *api.ReleasePayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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func (pc sourcehutConvertor) Package(_ *api.PackagePayload) (graphqlPayload[buildsVariables], error) {
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return graphqlPayload[buildsVariables]{}, shared.ErrPayloadTypeNotSupported
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}
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// mustBuildManifest adjusts the manifest to submit to the builds service
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//
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// in case of an error the Error field will be set, to be visible by the end-user under recent deliveries
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func (pc sourcehutConvertor) newPayload(repo *api.Repository, commitID, ref, note string, trusted bool) (graphqlPayload[buildsVariables], error) {
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manifest, err := pc.buildManifest(repo, commitID, ref)
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if err != nil {
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if len(manifest) == 0 {
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return graphqlPayload[buildsVariables]{}, err
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}
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// the manifest contains an error for the user: log the actual error and construct the payload
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// the error will be visible under the "recent deliveries" of the webhook settings.
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log.Warn("sourcehut.builds: could not construct manifest for %s: %v", repo.FullName, err)
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msg := fmt.Sprintf("%s:%s %s", repo.FullName, ref, manifest)
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return graphqlPayload[buildsVariables]{
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Error: msg,
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}, nil
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}
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gitRef := git.RefName(ref)
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return graphqlPayload[buildsVariables]{
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Query: `mutation (
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$manifest: String!
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$tags: [String!]
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$note: String!
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$secrets: Boolean!
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$execute: Boolean!
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$visibility: Visibility!
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) {
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submit(
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manifest: $manifest
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tags: $tags
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note: $note
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secrets: $secrets
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execute: $execute
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visibility: $visibility
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) {
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id
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}
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}`, Variables: buildsVariables{
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Manifest: string(manifest),
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Tags: []string{repo.FullName, gitRef.RefType() + "/" + gitRef.ShortName(), pc.meta.ManifestPath},
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Note: note,
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Secrets: pc.meta.Secrets && trusted,
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Execute: trusted,
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Visibility: cmp.Or(pc.meta.Visibility, "PRIVATE"),
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},
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}, nil
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}
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// buildManifest adjusts the manifest to submit to the builds service
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// in case of an error the []byte might contain an error that can be displayed to the user
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func (pc sourcehutConvertor) buildManifest(repo *api.Repository, commitID, gitRef string) ([]byte, error) {
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gitRepo, err := gitrepo.OpenRepository(pc.ctx, repo)
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if err != nil {
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msg := "could not open repository"
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return []byte(msg), fmt.Errorf(msg+": %w", err)
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}
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defer gitRepo.Close()
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commit, err := gitRepo.GetCommit(commitID)
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if err != nil {
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msg := fmt.Sprintf("could not get commit %q", commitID)
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return []byte(msg), fmt.Errorf(msg+": %w", err)
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}
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entry, err := commit.GetTreeEntryByPath(pc.meta.ManifestPath)
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if err != nil {
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msg := fmt.Sprintf("could not open manifest %q", pc.meta.ManifestPath)
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return []byte(msg), fmt.Errorf(msg+": %w", err)
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}
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r, err := entry.Blob().DataAsync()
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if err != nil {
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msg := fmt.Sprintf("could not read manifest %q", pc.meta.ManifestPath)
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return []byte(msg), fmt.Errorf(msg+": %w", err)
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}
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defer r.Close()
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var manifest struct {
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Image string `yaml:"image"`
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Arch string `yaml:"arch,omitempty"`
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Packages []string `yaml:"packages,omitempty"`
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Repositories map[string]string `yaml:"repositories,omitempty"`
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Artifacts []string `yaml:"artifacts,omitempty"`
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Shell bool `yaml:"shell,omitempty"`
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Sources []string `yaml:"sources"`
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Tasks []map[string]string `yaml:"tasks"`
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Triggers []string `yaml:"triggers,omitempty"`
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Environment map[string]string `yaml:"environment"`
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Secrets []string `yaml:"secrets,omitempty"`
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Oauth string `yaml:"oauth,omitempty"`
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}
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if err := yaml.NewDecoder(r).Decode(&manifest); err != nil {
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msg := fmt.Sprintf("could not decode manifest %q", pc.meta.ManifestPath)
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return []byte(msg), fmt.Errorf(msg+": %w", err)
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}
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if manifest.Environment == nil {
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manifest.Environment = make(map[string]string)
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}
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manifest.Environment["BUILD_SUBMITTER"] = "forgejo"
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manifest.Environment["BUILD_SUBMITTER_URL"] = setting.AppURL
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manifest.Environment["GIT_REF"] = gitRef
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source := repo.CloneURL + "#" + commitID
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found := false
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for i, s := range manifest.Sources {
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if s == repo.CloneURL {
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manifest.Sources[i] = source
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found = true
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break
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}
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}
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if !found {
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manifest.Sources = append(manifest.Sources, source)
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}
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return yaml.Marshal(manifest)
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}
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