add watch command

jiracli/watch.go

@@ -0,0 +1,74 @@
+package jiracli
+
+import (
+	"fmt"
+
+	kingpin "gopkg.in/alecthomas/kingpin.v2"
+)
+
+type WatchAction int
+
+const (
+	WatcherAdd WatchAction = iota
+	WatcherRemove
+)
+
+type WatchOptions struct {
+	GlobalOptions
+	Issue   string
+	Watcher string
+	Action  WatchAction
+}
+
+func (jc *JiraCli) CmdWatchRegistry() *CommandRegistryEntry {
+	opts := WatchOptions{
+		GlobalOptions: GlobalOptions{},
+		Action:        WatcherAdd,
+	}
+
+	return &CommandRegistryEntry{
+		"Add/Remove watcher to issue",
+		func() error {
+			return jc.CmdWatch(&opts)
+		},
+		func(cmd *kingpin.CmdClause) error {
+			return jc.CmdWatchUsage(cmd, &opts)
+		},
+	}
+}
+
+func (jc *JiraCli) CmdWatchUsage(cmd *kingpin.CmdClause, opts *WatchOptions) error {
+	if err := jc.GlobalUsage(cmd, &opts.GlobalOptions); err != nil {
+		return err
+	}
+	cmd.Flag("remove", "remove watcher from issue").Short('r').PreAction(func(ctx *kingpin.ParseContext) error {
+		opts.Action = WatcherRemove
+		return nil
+	}).Bool()
+	cmd.Arg("ISSUE", "issue to add watcher").Required().StringVar(&opts.Issue)
+	cmd.Arg("WATCHER", "username of watcher to add to issue").StringVar(&opts.Watcher)
+	return nil
+}
+
+// CmdWatch will add the given watcher to the issue (or remove the watcher
+// with the 'remove' flag)
+func (jc *JiraCli) CmdWatch(opts *WatchOptions) error {
+	if opts.Watcher == "" {
+		opts.Watcher = opts.User
+	}
+	if opts.Action == WatcherAdd {
+		if err := jc.IssueAddWatcher(opts.Issue, opts.Watcher); err != nil {
+			return err
+		}
+	} else {
+		if err := jc.IssueRemoveWatcher(opts.Issue, opts.Watcher); err != nil {
+			return err
+		}
+	}
+
+	fmt.Printf("OK %s %s/browse/%s\n", opts.Issue, jc.Endpoint, opts.Issue)
+
+	// FIXME implement browse
+
+	return nil
+}