gitea/services/pull/commit_status.go
zeripath 5cb0c9aa0d
Propagate context and ensure git commands run in request context (#17868)
This PR continues the work in #17125 by progressively ensuring that git
commands run within the request context.

This now means that the if there is a git repo already open in the context it will be used instead of reopening it.

Signed-off-by: Andrew Thornton <art27@cantab.net>
2022-01-19 23:26:57 +00:00

142 lines
4.1 KiB
Go

// Copyright 2019 The Gitea Authors.
// All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package pull
import (
"context"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/structs"
"github.com/pkg/errors"
)
// MergeRequiredContextsCommitStatus returns a commit status state for given required contexts
func MergeRequiredContextsCommitStatus(commitStatuses []*models.CommitStatus, requiredContexts []string) structs.CommitStatusState {
if len(requiredContexts) == 0 {
status := models.CalcCommitStatus(commitStatuses)
if status != nil {
return status.State
}
return structs.CommitStatusSuccess
}
var returnedStatus = structs.CommitStatusSuccess
for _, ctx := range requiredContexts {
var targetStatus structs.CommitStatusState
for _, commitStatus := range commitStatuses {
if commitStatus.Context == ctx {
targetStatus = commitStatus.State
break
}
}
if targetStatus == "" {
targetStatus = structs.CommitStatusPending
commitStatuses = append(commitStatuses, &models.CommitStatus{
State: targetStatus,
Context: ctx,
Description: "Pending",
})
}
if targetStatus.NoBetterThan(returnedStatus) {
returnedStatus = targetStatus
}
}
return returnedStatus
}
// IsCommitStatusContextSuccess returns true if all required status check contexts succeed.
func IsCommitStatusContextSuccess(commitStatuses []*models.CommitStatus, requiredContexts []string) bool {
// If no specific context is required, require that last commit status is a success
if len(requiredContexts) == 0 {
status := models.CalcCommitStatus(commitStatuses)
if status == nil || status.State != structs.CommitStatusSuccess {
return false
}
return true
}
for _, ctx := range requiredContexts {
var found bool
for _, commitStatus := range commitStatuses {
if commitStatus.Context == ctx {
if commitStatus.State != structs.CommitStatusSuccess {
return false
}
found = true
break
}
}
if !found {
return false
}
}
return true
}
// IsPullCommitStatusPass returns if all required status checks PASS
func IsPullCommitStatusPass(ctx context.Context, pr *models.PullRequest) (bool, error) {
if err := pr.LoadProtectedBranch(); err != nil {
return false, errors.Wrap(err, "GetLatestCommitStatus")
}
if pr.ProtectedBranch == nil || !pr.ProtectedBranch.EnableStatusCheck {
return true, nil
}
state, err := GetPullRequestCommitStatusState(ctx, pr)
if err != nil {
return false, err
}
return state.IsSuccess(), nil
}
// GetPullRequestCommitStatusState returns pull request merged commit status state
func GetPullRequestCommitStatusState(ctx context.Context, pr *models.PullRequest) (structs.CommitStatusState, error) {
// Ensure HeadRepo is loaded
if err := pr.LoadHeadRepo(); err != nil {
return "", errors.Wrap(err, "LoadHeadRepo")
}
// check if all required status checks are successful
headGitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, pr.HeadRepo.RepoPath())
if err != nil {
return "", errors.Wrap(err, "OpenRepository")
}
defer closer.Close()
if pr.Flow == models.PullRequestFlowGithub && !headGitRepo.IsBranchExist(pr.HeadBranch) {
return "", errors.New("Head branch does not exist, can not merge")
}
if pr.Flow == models.PullRequestFlowAGit && !git.IsReferenceExist(headGitRepo.Ctx, headGitRepo.Path, pr.GetGitRefName()) {
return "", errors.New("Head branch does not exist, can not merge")
}
var sha string
if pr.Flow == models.PullRequestFlowGithub {
sha, err = headGitRepo.GetBranchCommitID(pr.HeadBranch)
} else {
sha, err = headGitRepo.GetRefCommitID(pr.GetGitRefName())
}
if err != nil {
return "", err
}
if err := pr.LoadBaseRepo(); err != nil {
return "", errors.Wrap(err, "LoadBaseRepo")
}
commitStatuses, _, err := models.GetLatestCommitStatus(pr.BaseRepo.ID, sha, db.ListOptions{})
if err != nil {
return "", errors.Wrap(err, "GetLatestCommitStatus")
}
return MergeRequiredContextsCommitStatus(commitStatuses, pr.ProtectedBranch.StatusCheckContexts), nil
}