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target_image.go
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target_image.go
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package cnbutils
import (
"fmt"
"net/url"
"path/filepath"
"regexp"
"strings"
"github.com/SAP/jenkins-library/pkg/piperenv"
"github.com/pkg/errors"
)
type TargetImage struct {
ContainerImageName string
ContainerImageTag string
ContainerRegistry *url.URL
}
func GetTargetImage(imageRegistry, imageName, imageTag, projectID, envRootPath string) (*TargetImage, error) {
if imageRegistry == "" || imageTag == "" {
return nil, errors.New("containerRegistryUrl and containerImageTag must be present")
}
targetImage := &TargetImage{
ContainerImageTag: strings.ReplaceAll(imageTag, "+", "-"),
}
if matched, _ := regexp.MatchString("^(http|https)://.*", imageRegistry); !matched {
imageRegistry = fmt.Sprintf("https://%s", imageRegistry)
}
url, err := url.ParseRequestURI(imageRegistry)
if err != nil {
return nil, errors.Wrap(err, "invalid registry url")
}
targetImage.ContainerRegistry = url
cpePath := filepath.Join(envRootPath, "commonPipelineEnvironment")
gitRepository := piperenv.GetResourceParameter(cpePath, "git", "repository")
githubRepository := piperenv.GetResourceParameter(cpePath, "github", "repository")
if imageName != "" {
targetImage.ContainerImageName = imageName
} else if projectID != "" {
name := strings.ReplaceAll(projectID, ".", "-")
targetImage.ContainerImageName = name
} else if gitRepository != "" {
targetImage.ContainerImageName = strings.ReplaceAll(gitRepository, ".", "-")
} else if githubRepository != "" {
targetImage.ContainerImageName = strings.ReplaceAll(githubRepository, ".", "-")
} else {
return nil, errors.New("failed to derive default for image name")
}
return targetImage, nil
}