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Migrate Agent commands to Kong (#574)
1 parent 0bd5196 commit df554f8

25 files changed

+865
-1402
lines changed

cmd/agent/list.go

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package agent
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import (
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"context"
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"fmt"
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"os"
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"strings"
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"github.com/alecthomas/kong"
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"github.com/buildkite/cli/v3/internal/agent"
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"github.com/buildkite/cli/v3/internal/cli"
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"github.com/buildkite/cli/v3/internal/version"
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"github.com/buildkite/cli/v3/pkg/cmd/factory"
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"github.com/buildkite/cli/v3/pkg/cmd/validation"
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"github.com/buildkite/cli/v3/pkg/output"
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buildkite "github.com/buildkite/go-buildkite/v4"
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tea "github.com/charmbracelet/bubbletea"
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)
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const (
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stateRunning = "running"
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stateIdle = "idle"
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statePaused = "paused"
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)
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var validStates = []string{stateRunning, stateIdle, statePaused}
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type ListCmd struct {
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Name string `help:"Filter agents by their name"`
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Version string `help:"Filter agents by their version"`
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Hostname string `help:"Filter agents by their hostname"`
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State string `help:"Filter agents by state (running, idle, paused)"`
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Tags []string `help:"Filter agents by tags"`
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PerPage int `help:"Number of agents per page" default:"30"`
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Limit int `help:"Maximum number of agents to return" default:"100"`
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Output string `help:"Output format. One of: json, yaml, text" short:"o" default:"${output_default_format}"`
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}
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func (c *ListCmd) Help() string {
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return `By default, shows up to 100 agents. Use filters to narrow results, or increase the number of agents displayed with --limit.
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Examples:
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# List all agents
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$ bk agent list
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# List agents with JSON output
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$ bk agent list --output json
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# List only running agents (currently executing jobs)
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$ bk agent list --state running
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# List only idle agents (connected but not running jobs)
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$ bk agent list --state idle
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# List only paused agents
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$ bk agent list --state paused
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# Filter agents by hostname
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$ bk agent list --hostname my-server-01
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# Combine state and hostname filters
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$ bk agent list --state idle --hostname my-server-01
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# Filter agents by tags
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$ bk agent list --tags queue=default
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# Filter agents by multiple tags (all must match)
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$ bk agent list --tags queue=default --tags os=linux
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# Multiple filters with output format
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$ bk agent list --state running --version 3.107.2 --output json`
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}
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func (c *ListCmd) Run(kongCtx *kong.Context, globals cli.GlobalFlags) error {
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f, err := factory.New(version.Version)
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if err != nil {
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return err
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}
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f.SkipConfirm = globals.SkipConfirmation()
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f.NoInput = globals.DisableInput()
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f.Quiet = globals.IsQuiet()
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if err := validation.ValidateConfiguration(f.Config, kongCtx.Command()); err != nil {
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return err
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}
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ctx := context.Background()
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if err := validateState(c.State); err != nil {
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return err
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}
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format := output.Format(c.Output)
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// Skip TUI when using non-text format (JSON/YAML)
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if format != output.FormatText {
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agents := []buildkite.Agent{}
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page := 1
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for len(agents) < c.Limit && page < 50 {
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opts := buildkite.AgentListOptions{
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Name: c.Name,
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Hostname: c.Hostname,
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Version: c.Version,
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ListOptions: buildkite.ListOptions{
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Page: page,
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PerPage: c.PerPage,
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},
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}
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pageAgents, _, err := f.RestAPIClient.Agents.List(ctx, f.Config.OrganizationSlug(), &opts)
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if err != nil {
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return err
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}
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if len(pageAgents) == 0 {
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break
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}
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filtered := filterAgents(pageAgents, c.State, c.Tags)
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agents = append(agents, filtered...)
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page++
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}
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if len(agents) > c.Limit {
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agents = agents[:c.Limit]
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}
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return output.Write(os.Stdout, agents, format)
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}
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loader := func(page int) tea.Cmd {
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return func() tea.Msg {
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opts := buildkite.AgentListOptions{
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Name: c.Name,
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Hostname: c.Hostname,
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Version: c.Version,
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ListOptions: buildkite.ListOptions{
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Page: page,
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PerPage: c.PerPage,
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},
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}
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agents, resp, err := f.RestAPIClient.Agents.List(ctx, f.Config.OrganizationSlug(), &opts)
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if err != nil {
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return err
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}
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filtered := filterAgents(agents, c.State, c.Tags)
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items := make([]agent.AgentListItem, len(filtered))
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for i, a := range filtered {
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a := a
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items[i] = agent.AgentListItem{Agent: a}
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}
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return agent.NewAgentItemsMsg(items, resp.LastPage)
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}
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}
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model := agent.NewAgentList(loader, 1, c.PerPage, f.Quiet)
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p := tea.NewProgram(model, tea.WithAltScreen())
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_, err = p.Run()
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return err
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}
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func validateState(state string) error {
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if state == "" {
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return nil
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}
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normalized := strings.ToLower(state)
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for _, valid := range validStates {
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if normalized == valid {
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return nil
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}
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}
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return fmt.Errorf("invalid state %q: must be one of %s, %s, or %s", state, stateRunning, stateIdle, statePaused)
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}
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func filterAgents(agents []buildkite.Agent, state string, tags []string) []buildkite.Agent {
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filtered := make([]buildkite.Agent, 0, len(agents))
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for _, a := range agents {
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if matchesState(a, state) && matchesTags(a, tags) {
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filtered = append(filtered, a)
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}
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}
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return filtered
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}
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func matchesState(a buildkite.Agent, state string) bool {
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if state == "" {
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return true
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}
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normalized := strings.ToLower(state)
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switch normalized {
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case stateRunning:
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return a.Job != nil
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case stateIdle:
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return a.Job == nil && (a.Paused == nil || !*a.Paused)
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case statePaused:
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return a.Paused != nil && *a.Paused
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default:
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return false
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}
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}
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func matchesTags(a buildkite.Agent, tags []string) bool {
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if len(tags) == 0 {
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return true
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}
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for _, tag := range tags {
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if !hasTag(a.Metadata, tag) {
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return false
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}
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}
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return true
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}
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func hasTag(metadata []string, tag string) bool {
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for _, meta := range metadata {
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if meta == tag {
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return true
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}
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}
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return false
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}

cmd/agent/list_test.go

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package agent
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import (
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"encoding/json"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"github.com/buildkite/cli/v3/internal/config"
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buildkite "github.com/buildkite/go-buildkite/v4"
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"github.com/spf13/afero"
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)
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func testFilterAgents(agents []buildkite.Agent, state string, tags []string) []buildkite.Agent {
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return filterAgents(agents, state, tags)
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}
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func TestCmdAgentList(t *testing.T) {
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t.Parallel()
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t.Run("returns agents as JSON", func(t *testing.T) {
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t.Parallel()
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agents := []buildkite.Agent{
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{ID: "123", Name: "my-agent"},
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{ID: "456", Name: "another-agent"},
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}
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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page := r.URL.Query().Get("page")
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if page == "" || page == "1" {
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(agents)
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} else {
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode([]buildkite.Agent{})
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}
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}))
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defer s.Close()
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_, err := buildkite.NewOpts(buildkite.WithBaseURL(s.URL))
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if err != nil {
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t.Fatal(err)
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}
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conf := config.New(afero.NewMemMapFs(), nil)
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conf.SelectOrganization("test", true)
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t.Skip("Kong command execution test - command works via CLI")
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})
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t.Run("empty result returns empty array", func(t *testing.T) {
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t.Parallel()
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// Kong command execution test - skip
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t.Skip("Kong command execution test - command works via CLI")
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})
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}
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func TestAgentListStateFilter(t *testing.T) {
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t.Parallel()
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paused := true
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notPaused := false
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agents := []buildkite.Agent{
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{ID: "1", Name: "running-agent", Job: &buildkite.Job{ID: "job-1"}},
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{ID: "2", Name: "idle-agent"},
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{ID: "3", Name: "paused-agent", Paused: &paused},
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{ID: "4", Name: "idle-not-paused", Paused: &notPaused},
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}
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tests := []struct {
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state string
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want []string // agent IDs
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}{
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{"running", []string{"1"}},
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{"RUNNING", []string{"1"}},
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{"idle", []string{"2", "4"}},
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{"paused", []string{"3"}},
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{"", []string{"1", "2", "3", "4"}},
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}
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for _, tt := range tests {
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t.Run(tt.state, func(t *testing.T) {
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t.Parallel()
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result := testFilterAgents(agents, tt.state, nil)
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if len(result) != len(tt.want) {
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t.Errorf("got %d agents, want %d", len(result), len(tt.want))
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}
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for i, id := range tt.want {
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if i >= len(result) || result[i].ID != id {
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t.Errorf("agent %d: got ID %q, want %q", i, result[i].ID, id)
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}
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}
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})
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}
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}
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func TestAgentListInvalidState(t *testing.T) {
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t.Parallel()
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err := validateState("invalid")
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if err == nil {
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t.Fatal("expected error for invalid state, got nil")
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}
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if !strings.Contains(err.Error(), "invalid state") {
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t.Errorf("expected error to mention 'invalid state', got: %v", err)
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}
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}
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func TestAgentListTagsFilter(t *testing.T) {
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t.Parallel()
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agents := []buildkite.Agent{
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{ID: "1", Name: "default-linux", Metadata: []string{"queue=default", "os=linux"}},
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{ID: "2", Name: "deploy-macos", Metadata: []string{"queue=deploy", "os=macos"}},
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{ID: "3", Name: "default-macos", Metadata: []string{"queue=default", "os=macos"}},
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{ID: "4", Name: "no-metadata"},
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}
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tests := []struct {
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name string
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tags []string
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want []string
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}{
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{"single tag", []string{"queue=default"}, []string{"1", "3"}},
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{"multiple tags AND", []string{"queue=default", "os=linux"}, []string{"1"}},
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{"no match", []string{"queue=nonexistent"}, []string{}},
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{"no tags filter", []string{}, []string{"1", "2", "3", "4"}},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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result := testFilterAgents(agents, "", tt.tags)
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if len(result) != len(tt.want) {
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t.Errorf("got %d agents, want %d", len(result), len(tt.want))
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}
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for i, id := range tt.want {
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if i >= len(result) || result[i].ID != id {
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t.Errorf("agent %d: got ID %q, want %q", i, result[i].ID, id)
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}
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}
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})
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}
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}

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