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dev_release.go
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dev_release.go
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package model
import (
"fmt"
"io/ioutil"
"path/filepath"
"github.com/hpcloud/fissile/util"
"github.com/cppforlife/go-semi-semantic/version"
"gopkg.in/yaml.v2"
)
// NewDevRelease will create an instance of a BOSH development release
func NewDevRelease(path, releaseName, version, boshCacheDir string) (*Release, error) {
release := &Release{
Path: path,
Name: releaseName,
Version: version,
DevBOSHCacheDir: boshCacheDir,
}
if err := release.validateDevPathStructure(); err != nil {
return nil, err
}
if releaseName == "" {
releaseName, err := release.getDefaultDevReleaseName()
if err != nil {
return nil, err
}
release.Name = releaseName
}
if err := release.validateSpecificDevReleasePathStructure(); err != nil {
return nil, err
}
if version == "" {
version, err := release.getLatestDevVersion()
if err != nil {
return nil, err
}
release.Version = version
}
if err := release.loadMetadata(); err != nil {
return nil, err
}
if err := release.loadPackages(); err != nil {
return nil, err
}
if err := release.loadDependenciesForPackages(); err != nil {
return nil, err
}
if err := release.loadJobs(); err != nil {
return nil, err
}
if err := release.loadLicense(); err != nil {
return nil, err
}
return release, nil
}
func (r *Release) getDefaultDevReleaseName() (ver string, err error) {
releaseConfigContent, err := ioutil.ReadFile(r.getDevReleaseDevConfigFile())
if err != nil {
return "", err
}
var releaseConfig map[interface{}]interface{}
if err := yaml.Unmarshal([]byte(releaseConfigContent), &releaseConfig); err != nil {
return "", err
}
var name string
if value, ok := releaseConfig["dev_name"]; ok {
if name, ok = value.(string); ok {
return name, nil
}
}
releaseConfigContent, err = ioutil.ReadFile(r.getDevReleaseFinalConfigFile())
if err != nil {
return "", err
}
if err := yaml.Unmarshal([]byte(releaseConfigContent), &releaseConfig); err != nil {
return "", err
}
if value, ok := releaseConfig["name"]; !ok {
if value, ok := releaseConfig["final_name"]; !ok {
return "", fmt.Errorf("name or final_name key did not exist in configuration file for release: %s", r.Path)
} else if name, ok = value.(string); !ok {
return "", fmt.Errorf("final_name was not a string in release: %s, type: %T, value: %v", r.Path, value, value)
}
} else if name, ok = value.(string); !ok {
return "", fmt.Errorf("name was not a string in release: %s, type: %T, value: %v", r.Path, value, value)
}
return name, nil
}
func (r *Release) getLatestDevVersion() (ver string, err error) {
devReleaseIndexContent, err := ioutil.ReadFile(r.getDevReleaseIndexPath())
if err != nil {
return "", err
}
var devReleaseIndex map[interface{}]interface{}
if err := yaml.Unmarshal([]byte(devReleaseIndexContent), &devReleaseIndex); err != nil {
return "", err
}
var semiVer version.Version
var builds map[interface{}]interface{}
if value, ok := devReleaseIndex["builds"]; !ok {
return "", fmt.Errorf("builds key did not exist in dev releases index file for release: %s", r.Name)
} else if builds, ok = value.(map[interface{}]interface{}); !ok {
return "", fmt.Errorf("builds key in dev releases index file was not a map for release: %s, type: %T, value: %v", r.Name, value, value)
}
for _, build := range builds {
var buildVersion string
if buildMap, ok := build.(map[interface{}]interface{}); !ok {
return "", fmt.Errorf("build entry was not a map in release: %s, type: %T, value: %v", r.Name, build, build)
} else if value, ok := buildMap["version"]; !ok {
return "", fmt.Errorf("version key did not exist in a build entry for release: %s", r.Name)
} else if buildVersion, ok = value.(string); !ok {
return "", fmt.Errorf("version was not a string in a build entry for release: %s, type: %T, value: %v", r.Name, value, value)
}
if ver == "" {
ver = buildVersion
semiVer, err = version.NewVersionFromString(ver)
if err != nil {
return "", err
}
continue
}
semiBuildVer, err := version.NewVersionFromString(buildVersion)
if err != nil {
return "", err
}
if semiBuildVer.IsGt(semiVer) {
ver = buildVersion
semiVer = semiBuildVer
}
}
return ver, nil
}
func (r *Release) validateDevPathStructure() error {
if err := util.ValidatePath(r.Path, true, "release directory"); err != nil {
return err
}
if err := util.ValidatePath(r.getDevReleasesDir(), true, "release 'dev_releases' directory"); err != nil {
return err
}
if err := util.ValidatePath(r.getDevReleaseConfigDir(), true, "release config directory"); err != nil {
return err
}
if err := util.ValidatePath(r.getDevReleaseDevConfigFile(), false, "release dev config file"); err != nil {
return err
}
return nil
}
func (r *Release) validateSpecificDevReleasePathStructure() error {
if err := util.ValidatePath(r.getDevReleaseManifestsDir(), true, "release dev manifests directory"); err != nil {
return err
}
if err := util.ValidatePath(r.getDevReleaseIndexPath(), false, "release index file"); err != nil {
return err
}
return nil
}
func (r *Release) getDevReleaseManifestFilename() string {
return fmt.Sprintf("%s-%s.yml", r.Name, r.Version)
}
func (r *Release) getDevReleaseManifestsDir() string {
return filepath.Join(r.getDevReleasesDir(), r.Name)
}
func (r *Release) getDevReleaseIndexPath() string {
return filepath.Join(r.getDevReleaseManifestsDir(), "index.yml")
}
func (r *Release) getDevReleasesDir() string {
return filepath.Join(r.Path, "dev_releases")
}
func (r *Release) getDevReleaseConfigDir() string {
return filepath.Join(r.Path, "config")
}
func (r *Release) getDevReleaseFinalConfigFile() string {
return filepath.Join(r.getDevReleaseConfigDir(), "final.yml")
}
func (r *Release) getDevReleaseDevConfigFile() string {
return filepath.Join(r.getDevReleaseConfigDir(), "dev.yml")
}