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step_pr_labels.go
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step_pr_labels.go
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package cmd
import (
"fmt"
"os"
"regexp"
"strconv"
"strings"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/jenkins-x/jx/pkg/jx/cmd/opts"
"github.com/jenkins-x/jx/pkg/jx/cmd/templates"
"github.com/jenkins-x/jx/pkg/log"
)
// DefaultPrefix for all PR labels environment keys
const DefaultPrefix = "JX_PR_LABELS"
// StepPRLabelsOptions holds the options for the cmd
type StepPRLabelsOptions struct {
*opts.CommonOptions
Dir string
Prefix string
PullRequest string
}
var (
labelLong = templates.LongDesc(`
Creates environment variables from the labels in a pull request.
Environment variables are prefixed per default with ` + DefaultPrefix + `.
You can use the '--prefix' argument to set a different prefix.
`)
labelExample = templates.Examples(`
# List all labels of a given pull-request
jx step pr labels
# List all labels of a given pull-request using a custom prefix
jx step pr --prefix PRL
# List all labels of a given pull-request using a custom pull-request number
jx step pr --pr PR-34
jx step pr --pr 34
`)
)
// NewCmdStepPRLabels creates the new cmd
func NewCmdStepPRLabels(commonOpts *opts.CommonOptions) *cobra.Command {
options := &StepPRLabelsOptions{
CommonOptions: commonOpts,
}
cmd := &cobra.Command{
Use: "labels",
Short: "List all labels of a given pull-request",
Long: labelLong,
Example: labelExample,
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
}
cmd.Flags().StringVarP(&options.PullRequest, "pr", "", "", "Git Pull Request number")
cmd.Flags().StringVarP(&options.Prefix, "prefix", "p", "", "Environment variable prefix")
return cmd
}
// Run implements the execution
func (o *StepPRLabelsOptions) Run() error {
gitInfo, provider, _, err := o.CreateGitProvider(o.Dir)
if err != nil {
return err
}
if provider == nil {
return fmt.Errorf("No Git provider could be found. Are you in a directory containing a `.git/config` file?")
}
if o.PullRequest == "" {
o.PullRequest = strings.TrimPrefix(os.Getenv("BRANCH_NAME"), "PR-")
}
if o.Prefix == "" {
o.Prefix = DefaultPrefix
}
prNum, err := strconv.Atoi(o.PullRequest)
if err != nil {
log.Warn("Unable to convert PR " + o.PullRequest + " to a number" + "\n")
}
pr, err := provider.GetPullRequest(gitInfo.Organisation, gitInfo, prNum)
if err != nil {
return errors.Wrapf(err, "failed to find PullRequest %d", prNum)
}
reg, err := regexp.Compile("[^a-zA-Z0-9]+")
if err != nil {
return errors.Wrapf(err, "failed to create regex %v", reg)
}
for _, v := range pr.Labels {
envKey := reg.ReplaceAllString(*v.Name, "_")
log.Infof("%v_%v='%v'\n", o.Prefix, strings.ToUpper(envKey), *v.Name)
}
return nil
}