internal/control/label.go

  1package control
  2
  3import (
  4	"errors"
  5	"fmt"
  6	"io"
  7	"regexp"
  8	"strings"
  9
 10	"gitbay.org/gitbay/internal/policy"
 11	"gitbay.org/gitbay/internal/protocol"
 12	"gitbay.org/gitbay/internal/store"
 13)
 14
 15func init() {
 16	register(Command{Path: []string{"label", "list"},
 17		Summary: "list a repository's issue labels with colour and use",
 18		Usage:   "label list <owner/name>", ReadOnly: true, Run: runLabelList})
 19	register(Command{Path: []string{"label", "set"},
 20		Summary: "create a label or set its colour",
 21		Usage:   "label set <owner/name> <label> [--color rrggbb|'']", Run: runLabelSet})
 22	register(Command{Path: []string{"label", "remove"},
 23		Summary: "remove a label from the repository and from every issue",
 24		Usage:   "label remove <owner/name> <label>", Run: runLabelRemove})
 25}
 26
 27// A colour is six hex digits, with or without the hash: over bare ssh a
 28// bare # starts a comment for the remote tokenizer, so the form without
 29// it is the one that types cleanly there.
 30var labelColorPat = regexp.MustCompile(`^#?[0-9a-fA-F]{6}$`)
 31
 32func runLabelList(c *Ctx, args []string) int {
 33	if len(args) != 1 {
 34		return c.usage()
 35	}
 36	repo, code := resolveRepo(c, args[0], policy.CanRead)
 37	if code >= 0 {
 38		return code
 39	}
 40	readable, err := ReadableScope(c.Store, c.User, repo)
 41	if err != nil {
 42		return c.fail(protocol.ExitFailure, "%v", err)
 43	}
 44	labels, err := c.Store.ListLabels(repo, readable)
 45	if err != nil {
 46		return c.fail(protocol.ExitFailure, "%v", err)
 47	}
 48	return c.emit(labels, func(w io.Writer) {
 49		for _, l := range labels {
 50			fmt.Fprintf(w, "%s\t%s\t%d%s\n", l.Name, l.Color, l.Issues, map[bool]string{true: "\torg"}[l.Org])
 51		}
 52	})
 53}
 54
 55func runLabelSet(c *Ctx, args []string) int {
 56	f, err := parseFlags(args, flagSpec{Values: []string{"--color"}, MaxPos: -1, Usage: c.Cmd.Usage})
 57	if err != nil {
 58		return c.fail(protocol.ExitUsage, "%v", err)
 59	}
 60	rest := f.Pos
 61	color, colorSet := strings.ToLower(f.Value("--color")), f.Has("--color")
 62	if len(rest) != 2 {
 63		return c.usage()
 64	}
 65	if colorSet && color != "" {
 66		if !labelColorPat.MatchString(color) {
 67			return c.fail(protocol.ExitUsage, "--color takes rrggbb (with or without #), or '' to clear")
 68		}
 69		color = "#" + strings.TrimPrefix(color, "#")
 70	}
 71	repo, code := resolveRepo(c, rest[0], policy.CanWrite)
 72	if code >= 0 {
 73		return code
 74	}
 75	if code := refuseArchived(c, repo); code >= 0 {
 76		return code
 77	}
 78	name := rest[1]
 79	if name == "" || len(name) > 50 {
 80		return c.fail(protocol.ExitUsage, "a label is 1 to 50 characters")
 81	}
 82	if !colorSet {
 83		// Keep the colour it has, if any; this is "make sure it exists".
 84		if l, err := c.Store.LabelByName(repo, name); err == nil && !l.Org {
 85			color = l.Color
 86		}
 87	}
 88	if err := c.Store.SetLabel(repo, name, color); err != nil {
 89		if errors.Is(err, store.ErrOrgScoped) {
 90			return c.fail(protocol.ExitFailure, "%s", orgScopedMsg(repo, "label", name, "set"))
 91		}
 92		return c.fail(protocol.ExitFailure, "%v", err)
 93	}
 94	return c.emit(store.Label{Name: name, Color: color}, func(w io.Writer) {
 95		if color == "" {
 96			fmt.Fprintf(w, "label %s, no colour set\n", name)
 97			return
 98		}
 99		fmt.Fprintf(w, "label %s is %s\n", name, color)
100	})
101}
102
103func runLabelRemove(c *Ctx, args []string) int {
104	if len(args) != 2 {
105		return c.usage()
106	}
107	repo, code := resolveRepo(c, args[0], policy.CanWrite)
108	if code >= 0 {
109		return code
110	}
111	if code := refuseArchived(c, repo); code >= 0 {
112		return code
113	}
114	if err := c.Store.DeleteLabel(repo, args[1]); err != nil {
115		if errors.Is(err, store.ErrOrgScoped) {
116			return c.fail(protocol.ExitFailure, "%s", orgScopedMsg(repo, "label", args[1], "remove"))
117		}
118		if errors.Is(err, store.ErrNotFound) {
119			return c.fail(protocol.ExitNotFound, "no label %q in %s", args[1], repo.Path())
120		}
121		return c.fail(protocol.ExitFailure, "%v", err)
122	}
123	return c.emit(map[string]string{"removed": args[1]}, func(w io.Writer) {
124		fmt.Fprintf(w, "removed label %s\n", args[1])
125	})
126}