drone/internal/api/controller/pullreq/pr_create.go

135 lines
3.7 KiB
Go

// Copyright 2022 Harness Inc. All rights reserved.
// Use of this source code is governed by the Polyform Free Trial License
// that can be found in the LICENSE.md file for this repository.
package pullreq
import (
"context"
"fmt"
"strings"
"time"
"github.com/harness/gitness/internal/api/usererror"
"github.com/harness/gitness/internal/auth"
pullreqevents "github.com/harness/gitness/internal/events/pullreq"
"github.com/harness/gitness/types"
"github.com/harness/gitness/types/enum"
)
type CreateInput struct {
IsDraft bool `json:"is_draft"`
Title string `json:"title"`
Description string `json:"description"`
SourceRepoRef string `json:"source_repo_ref"`
SourceBranch string `json:"source_branch"`
TargetBranch string `json:"target_branch"`
}
// Create creates a new pull request.
func (c *Controller) Create(
ctx context.Context,
session *auth.Session,
repoRef string,
in *CreateInput,
) (*types.PullReq, error) {
in.Title = strings.TrimSpace(in.Title)
if in.Title == "" {
return nil, usererror.BadRequest("pull request title can't be empty")
}
targetRepo, err := c.getRepoCheckAccess(ctx, session, repoRef, enum.PermissionRepoPush)
if err != nil {
return nil, fmt.Errorf("failed to acquire access access to target repo: %w", err)
}
sourceRepo := targetRepo
if in.SourceRepoRef != "" {
sourceRepo, err = c.getRepoCheckAccess(ctx, session, in.SourceRepoRef, enum.PermissionRepoView)
if err != nil {
return nil, fmt.Errorf("failed to acquire access access to source repo: %w", err)
}
}
if sourceRepo.ID == targetRepo.ID && in.TargetBranch == in.SourceBranch {
return nil, usererror.BadRequest("target and source branch can't be the same")
}
var sourceSHA string
if sourceSHA, err = c.verifyBranchExistence(ctx, sourceRepo, in.SourceBranch); err != nil {
return nil, err
}
if _, err = c.verifyBranchExistence(ctx, targetRepo, in.TargetBranch); err != nil {
return nil, err
}
if err = c.checkIfAlreadyExists(ctx, targetRepo.ID, sourceRepo.ID, in.TargetBranch, in.SourceBranch); err != nil {
return nil, err
}
targetRepo, err = c.repoStore.UpdateOptLock(ctx, targetRepo, func(repo *types.Repository) error {
repo.PullReqSeq++
return nil
})
if err != nil {
return nil, fmt.Errorf("failed to aquire PullReqSeq number: %w", err)
}
pr := newPullReq(session, targetRepo.PullReqSeq, sourceRepo, targetRepo, in, sourceSHA)
err = c.pullreqStore.Create(ctx, pr)
if err != nil {
return nil, fmt.Errorf("pullreq creation failed: %w", err)
}
c.eventReporter.Created(ctx, &pullreqevents.CreatedPayload{
Base: eventBase(pr, &session.Principal),
SourceBranch: in.SourceBranch,
TargetBranch: in.TargetBranch,
SourceSHA: sourceSHA,
})
return pr, nil
}
// newPullReq creates new pull request object.
func newPullReq(
session *auth.Session,
number int64,
sourceRepo *types.Repository,
targetRepo *types.Repository,
in *CreateInput,
sourceSHA string,
) *types.PullReq {
now := time.Now().UnixMilli()
return &types.PullReq{
ID: 0, // the ID will be populated in the data layer
Version: 0,
Number: number,
CreatedBy: session.Principal.ID,
Created: now,
Updated: now,
Edited: now,
State: enum.PullReqStateOpen,
IsDraft: in.IsDraft,
Title: in.Title,
Description: in.Description,
SourceRepoID: sourceRepo.ID,
SourceBranch: in.SourceBranch,
SourceSHA: sourceSHA,
TargetRepoID: targetRepo.ID,
TargetBranch: in.TargetBranch,
ActivitySeq: 0,
MergedBy: nil,
Merged: nil,
MergeCheckStatus: enum.MergeCheckStatusUnchecked,
MergeMethod: nil,
Author: *session.Principal.ToPrincipalInfo(),
Merger: nil,
}
}