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|
package runner
import (
"archive/tar"
"context"
"errors"
"fmt"
"io/fs"
"os"
"path"
"regexp"
"strings"
"sync"
"github.com/nektos/act/pkg/common"
"github.com/nektos/act/pkg/common/git"
"github.com/nektos/act/pkg/model"
)
func newLocalReusableWorkflowExecutor(rc *RunContext) common.Executor {
if !rc.Config.NoSkipCheckout {
fullPath := rc.Run.Job().Uses
fileName := path.Base(fullPath)
workflowDir := strings.TrimSuffix(fullPath, path.Join("/", fileName))
workflowDir = strings.TrimPrefix(workflowDir, "./")
return common.NewPipelineExecutor(
newReusableWorkflowExecutor(rc, workflowDir, fileName),
)
}
// ./.gitea/workflows/wf.yml -> .gitea/workflows/wf.yml
trimmedUses := strings.TrimPrefix(rc.Run.Job().Uses, "./")
// uses string format is {owner}/{repo}/.{git_platform}/workflows/{filename}@{ref}
uses := fmt.Sprintf("%s/%s@%s", rc.Config.PresetGitHubContext.Repository, trimmedUses, rc.Config.PresetGitHubContext.Sha)
remoteReusableWorkflow := newRemoteReusableWorkflowWithPlat(rc.Config.GitHubInstance, uses)
if remoteReusableWorkflow == nil {
return common.NewErrorExecutor(fmt.Errorf("expected format {owner}/{repo}/.{git_platform}/workflows/{filename}@{ref}. Actual '%s' Input string was not in a correct format", uses))
}
workflowDir := fmt.Sprintf("%s/%s", rc.ActionCacheDir(), safeFilename(uses))
// If the repository is private, we need a token to clone it
token := rc.Config.GetToken()
return common.NewPipelineExecutor(
newMutexExecutor(cloneIfRequired(rc, *remoteReusableWorkflow, workflowDir, token)),
newReusableWorkflowExecutor(rc, workflowDir, remoteReusableWorkflow.FilePath()),
)
}
func newRemoteReusableWorkflowExecutor(rc *RunContext) common.Executor {
uses := rc.Run.Job().Uses
remoteReusableWorkflow := newRemoteReusableWorkflowWithPlat(rc.Config.GitHubInstance, uses)
if remoteReusableWorkflow == nil {
return common.NewErrorExecutor(fmt.Errorf("expected format {owner}/{repo}/.{git_platform}/workflows/{filename}@{ref}. Actual '%s' Input string was not in a correct format", uses))
}
// uses with safe filename makes the target directory look something like this {owner}-{repo}-.github-workflows-{filename}@{ref}
// instead we will just use {owner}-{repo}@{ref} as our target directory. This should also improve performance when we are using
// multiple reusable workflows from the same repository and ref since for each workflow we won't have to clone it again
filename := fmt.Sprintf("%s/%s@%s", remoteReusableWorkflow.Org, remoteReusableWorkflow.Repo, remoteReusableWorkflow.Ref)
workflowDir := fmt.Sprintf("%s/%s", rc.ActionCacheDir(), safeFilename(filename))
// FIXME: if the reusable workflow is from a private repository, we need to provide a token to access the repository.
token := ""
if rc.Config.ActionCache != nil {
return newActionCacheReusableWorkflowExecutor(rc, filename, remoteReusableWorkflow)
}
return common.NewPipelineExecutor(
newMutexExecutor(cloneIfRequired(rc, *remoteReusableWorkflow, workflowDir, token)),
newReusableWorkflowExecutor(rc, workflowDir, remoteReusableWorkflow.FilePath()),
)
}
func newActionCacheReusableWorkflowExecutor(rc *RunContext, filename string, remoteReusableWorkflow *remoteReusableWorkflow) common.Executor {
return func(ctx context.Context) error {
ghctx := rc.getGithubContext(ctx)
remoteReusableWorkflow.URL = ghctx.ServerURL
sha, err := rc.Config.ActionCache.Fetch(ctx, filename, remoteReusableWorkflow.CloneURL(), remoteReusableWorkflow.Ref, ghctx.Token)
if err != nil {
return err
}
archive, err := rc.Config.ActionCache.GetTarArchive(ctx, filename, sha, fmt.Sprintf(".github/workflows/%s", remoteReusableWorkflow.Filename))
if err != nil {
return err
}
defer archive.Close()
treader := tar.NewReader(archive)
if _, err = treader.Next(); err != nil {
return err
}
planner, err := model.NewSingleWorkflowPlanner(remoteReusableWorkflow.Filename, treader)
if err != nil {
return err
}
plan, err := planner.PlanEvent("workflow_call")
if err != nil {
return err
}
runner, err := NewReusableWorkflowRunner(rc)
if err != nil {
return err
}
return runner.NewPlanExecutor(plan)(ctx)
}
}
var (
executorLock sync.Mutex
)
func newMutexExecutor(executor common.Executor) common.Executor {
return func(ctx context.Context) error {
executorLock.Lock()
defer executorLock.Unlock()
return executor(ctx)
}
}
func cloneIfRequired(rc *RunContext, remoteReusableWorkflow remoteReusableWorkflow, targetDirectory, token string) common.Executor {
return common.NewConditionalExecutor(
func(ctx context.Context) bool {
_, err := os.Stat(targetDirectory)
notExists := errors.Is(err, fs.ErrNotExist)
return notExists
},
func(ctx context.Context) error {
// Do not change the remoteReusableWorkflow.URL, because:
// 1. Gitea doesn't support specifying GithubContext.ServerURL by the GITHUB_SERVER_URL env
// 2. Gitea has already full URL with rc.Config.GitHubInstance when calling newRemoteReusableWorkflowWithPlat
// remoteReusableWorkflow.URL = rc.getGithubContext(ctx).ServerURL
return git.NewGitCloneExecutor(git.NewGitCloneExecutorInput{
URL: remoteReusableWorkflow.CloneURL(),
Ref: remoteReusableWorkflow.Ref,
Dir: targetDirectory,
Token: token,
OfflineMode: rc.Config.ActionOfflineMode,
})(ctx)
},
nil,
)
}
func newReusableWorkflowExecutor(rc *RunContext, directory string, workflow string) common.Executor {
return func(ctx context.Context) error {
planner, err := model.NewWorkflowPlanner(path.Join(directory, workflow), true)
if err != nil {
return err
}
plan, err := planner.PlanEvent("workflow_call")
if err != nil {
return err
}
runner, err := NewReusableWorkflowRunner(rc)
if err != nil {
return err
}
return runner.NewPlanExecutor(plan)(ctx)
}
}
func NewReusableWorkflowRunner(rc *RunContext) (Runner, error) {
runner := &runnerImpl{
config: rc.Config,
eventJSON: rc.EventJSON,
caller: &caller{
runContext: rc,
},
}
return runner.configure()
}
type remoteReusableWorkflow struct {
URL string
Org string
Repo string
Filename string
Ref string
GitPlatform string
}
func (r *remoteReusableWorkflow) CloneURL() string {
// In Gitea, r.URL always has the protocol prefix, we don't need to add extra prefix in this case.
if strings.HasPrefix(r.URL, "http://") || strings.HasPrefix(r.URL, "https://") {
return fmt.Sprintf("%s/%s/%s", r.URL, r.Org, r.Repo)
}
return fmt.Sprintf("https://%s/%s/%s", r.URL, r.Org, r.Repo)
}
func (r *remoteReusableWorkflow) FilePath() string {
return fmt.Sprintf("./.%s/workflows/%s", r.GitPlatform, r.Filename)
}
// For Gitea
// newRemoteReusableWorkflowWithPlat create a `remoteReusableWorkflow`
// workflows from `.gitea/workflows` and `.github/workflows` are supported
func newRemoteReusableWorkflowWithPlat(url, uses string) *remoteReusableWorkflow {
// GitHub docs:
// https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_iduses
r := regexp.MustCompile(`^([^/]+)/([^/]+)/\.([^/]+)/workflows/([^@]+)@(.*)$`)
matches := r.FindStringSubmatch(uses)
if len(matches) != 6 {
return nil
}
return &remoteReusableWorkflow{
Org: matches[1],
Repo: matches[2],
GitPlatform: matches[3],
Filename: matches[4],
Ref: matches[5],
URL: url,
}
}
// deprecated: use newRemoteReusableWorkflowWithPlat
func newRemoteReusableWorkflow(uses string) *remoteReusableWorkflow {
// GitHub docs:
// https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_iduses
r := regexp.MustCompile(`^([^/]+)/([^/]+)/.github/workflows/([^@]+)@(.*)$`)
matches := r.FindStringSubmatch(uses)
if len(matches) != 5 {
return nil
}
return &remoteReusableWorkflow{
Org: matches[1],
Repo: matches[2],
Filename: matches[3],
Ref: matches[4],
URL: "https://github.com",
}
}
|
