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buildpack.go
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/
buildpack.go
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package gitresolver
import (
"fmt"
"github.com/jenkins-x/jx/pkg/gits"
"github.com/jenkins-x/jx/pkg/util"
"net/url"
"os"
"path/filepath"
"strings"
)
// InitBuildPack initialises the build pack URL and git ref returning the packs dir or an error
func InitBuildPack(gitter gits.Gitter, packURL string, packRef string) (string, error) {
u, err := url.Parse(strings.TrimSuffix(packURL, ".git"))
if err != nil {
return "", fmt.Errorf("Failed to parse build pack URL: %s: %s", packURL, err)
}
draftDir, err := util.DraftDir()
if err != nil {
return "", err
}
dir := filepath.Join(draftDir, "packs", u.Host, u.Path)
if err := os.MkdirAll(dir, 0755); err != nil {
return "", fmt.Errorf("Could not create %s: %s", dir, err)
}
err = gitter.CloneOrPull(packURL, dir)
if err != nil {
return "", err
}
if packRef != "master" && packRef != "" {
err = gitter.CheckoutRemoteBranch(dir, packRef)
}
return filepath.Join(dir, "packs"), err
}