/
find_release_version.go
99 lines (81 loc) · 2.73 KB
/
find_release_version.go
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package commands
import (
"encoding/json"
"errors"
"fmt"
"log"
"github.com/pivotal-cf/jhanda"
"github.com/pivotal-cf/kiln/internal/commands/flags"
"github.com/pivotal-cf/kiln/pkg/cargo"
)
type FindReleaseVersion struct {
outLogger *log.Logger
mrsProvider MultiReleaseSourceProvider
Options struct {
flags.Standard
Release string `short:"r" long:"release" description:"release name"`
NoDownload bool `long:"no-download" description:"do not download any files"`
}
}
type releaseVersionOutput struct {
Version string `json:"version"`
RemotePath string `json:"remote_path"`
Source string `json:"source"`
SHA string `json:"sha"`
}
func NewFindReleaseVersion(outLogger *log.Logger, multiReleaseSourceProvider MultiReleaseSourceProvider) *FindReleaseVersion {
return &FindReleaseVersion{
outLogger: outLogger,
mrsProvider: multiReleaseSourceProvider,
}
}
func (cmd *FindReleaseVersion) Execute(args []string) error {
kilnfile, kilnfileLock, err := cmd.setup(args)
if err != nil {
return err
}
releaseSource := cmd.mrsProvider(kilnfile, false)
spec, err := kilnfile.BOSHReleaseTarballSpecification(cmd.Options.Release)
if err != nil {
return err
}
spec.StemcellOS = kilnfileLock.Stemcell.OS
spec.StemcellVersion = kilnfileLock.Stemcell.Version
releaseRemote, err := releaseSource.FindReleaseVersion(spec, cmd.Options.NoDownload)
if err != nil {
return err
}
releaseVersionJson, _ := json.Marshal(releaseVersionOutput{
Version: releaseRemote.Version,
RemotePath: releaseRemote.RemotePath,
Source: releaseRemote.RemoteSource,
SHA: releaseRemote.SHA1,
})
cmd.outLogger.Println(string(releaseVersionJson))
return err
}
func (cmd *FindReleaseVersion) setup(args []string) (cargo.Kilnfile, cargo.KilnfileLock, error) {
argsAfterFlags, err := flags.LoadWithDefaultFilePaths(&cmd.Options, args, nil)
if err != nil {
return cargo.Kilnfile{}, cargo.KilnfileLock{}, err
}
if cmd.Options.Release == "" {
return cargo.Kilnfile{}, cargo.KilnfileLock{}, errors.New("missing required flag \"--release\"")
}
if len(argsAfterFlags) != 0 {
return cargo.Kilnfile{}, cargo.KilnfileLock{}, fmt.Errorf("unexpected arguments: %v", argsAfterFlags)
}
kilnfile, kilnfileLock, err := cmd.Options.LoadKilnfiles(nil, nil)
if err != nil {
fmt.Println(err)
return cargo.Kilnfile{}, cargo.KilnfileLock{}, err
}
return kilnfile, kilnfileLock, nil
}
func (cmd *FindReleaseVersion) Usage() jhanda.Usage {
return jhanda.Usage{
Description: "Prints a json string of a remote release satisfying the Kilnfile version and stemcell constraints.",
ShortDescription: "prints a json string of a remote release satisfying the Kilnfile version and stemcell constraints",
Flags: cmd.Options,
}
}