act/pkg/runner/local_repository_cache.go

92 lines
2.3 KiB
Go

package runner
import (
"archive/tar"
"bytes"
"context"
"fmt"
"io"
"io/fs"
goURL "net/url"
"os"
"path/filepath"
"strings"
"github.com/nektos/act/pkg/filecollector"
)
type LocalRepositoryCache struct {
Parent ActionCache
LocalRepositories map[string]string
CacheDirCache map[string]string
}
func (l *LocalRepositoryCache) Fetch(ctx context.Context, cacheDir, url, ref, token string) (string, error) {
if dest, ok := l.LocalRepositories[fmt.Sprintf("%s@%s", url, ref)]; ok {
l.CacheDirCache[fmt.Sprintf("%s@%s", cacheDir, ref)] = dest
return ref, nil
}
if purl, err := goURL.Parse(url); err == nil {
if dest, ok := l.LocalRepositories[fmt.Sprintf("%s@%s", strings.TrimPrefix(purl.Path, "/"), ref)]; ok {
l.CacheDirCache[fmt.Sprintf("%s@%s", cacheDir, ref)] = dest
return ref, nil
}
}
return l.Parent.Fetch(ctx, cacheDir, url, ref, token)
}
func (l *LocalRepositoryCache) GetTarArchive(ctx context.Context, cacheDir, sha, includePrefix string) (io.ReadCloser, error) {
// sha is mapped to ref in fetch if there is a local override
if dest, ok := l.CacheDirCache[fmt.Sprintf("%s@%s", cacheDir, sha)]; ok {
srcPath := filepath.Join(dest, includePrefix)
buf := &bytes.Buffer{}
tw := tar.NewWriter(buf)
defer tw.Close()
srcPath = filepath.Clean(srcPath)
fi, err := os.Lstat(srcPath)
if err != nil {
return nil, err
}
tc := &filecollector.TarCollector{
TarWriter: tw,
}
if fi.IsDir() {
srcPrefix := srcPath
if !strings.HasSuffix(srcPrefix, string(filepath.Separator)) {
srcPrefix += string(filepath.Separator)
}
fc := &filecollector.FileCollector{
Fs: &filecollector.DefaultFs{},
SrcPath: srcPath,
SrcPrefix: srcPrefix,
Handler: tc,
}
err = filepath.Walk(srcPath, fc.CollectFiles(ctx, []string{}))
if err != nil {
return nil, err
}
} else {
var f io.ReadCloser
var linkname string
if fi.Mode()&fs.ModeSymlink != 0 {
linkname, err = os.Readlink(srcPath)
if err != nil {
return nil, err
}
} else {
f, err = os.Open(srcPath)
if err != nil {
return nil, err
}
defer f.Close()
}
err := tc.WriteFile(fi.Name(), fi, linkname, f)
if err != nil {
return nil, err
}
}
return io.NopCloser(buf), nil
}
return l.Parent.GetTarArchive(ctx, cacheDir, sha, includePrefix)
}