features.go RawHistoryFolder

1// SPDX-License-Identifier: AGPL-3.0-or-later
2
3package client
4
5import "slices"
6
7// Contract features this client relies on, as listed by
8// ServerService.GetVersion. A server without one still works for everything
9// else: the CLI warns instead of failing.
10const (
11	// FeatureRepoUpdate is RepoService.UpdateRepo (`ermite repo edit`).
12	FeatureRepoUpdate = "repo.update"
13	// FeatureEventsResume is EventService.Watch with resume_after, which
14	// `ermite watch` uses to continue after a reconnection.
15	FeatureEventsResume = "events.resume"
16	// FeatureMergeRequests is MergeRequestService (`ermite mr`).
17	FeatureMergeRequests = "merge_requests"
18	// FeatureMergeDeleteBranch is MergeMergeRequest with delete_source_branch
19	// (`ermite mr merge --delete-branch`).
20	FeatureMergeDeleteBranch = "merge_requests.delete_branch"
21	// FeatureSigningKey is ServerService.GetSigningKey (`ermite signing-key`).
22	FeatureSigningKey = "signing_key"
23	// FeatureSession is SessionService (`ermite web login`, `web logout`).
24	FeatureSession = "session"
25	// FeaturePasskeys is SessionService.ListPasskeys and RemovePasskey
26	// (`ermite web passkey`). A server lists it only when passkeys are
27	// available (https public URL with a DNS host name).
28	FeaturePasskeys = "passkeys"
29	// FeatureTokenBranchPrefixes is Token.branch_prefixes and
30	// CreateTokenRequest.branch_prefixes (`ermite token create --branch-prefix`).
31	// A server without it ignores the field and would create an unlimited
32	// token: `token create --branch-prefix` reads the features first and
33	// refuses when it is missing (the main guard), and also checks the token it
34	// gets back (a backstop).
35	FeatureTokenBranchPrefixes = "token.branch_prefixes"
36	// FeatureCIRuns is RunService (`ermite run`), FeatureCIRunners its runner
37	// calls (`ermite runner`).
38	FeatureCIRuns    = "ci.runs"
39	FeatureCIRunners = "ci.runners"
40	// FeatureCISecrets is SecretService, VariableService and EnvironmentService
41	// (`ermite secret`, `variable`, `environment`).
42	FeatureCISecrets = "ci.secrets"
43)
44
45// UsedFeatures lists the features the CLI uses, in the order they are reported.
46func UsedFeatures() []string {
47	return []string{FeatureRepoUpdate, FeatureEventsResume, FeatureMergeRequests, FeatureMergeDeleteBranch, FeatureSigningKey, FeatureSession, FeatureTokenBranchPrefixes, FeatureCIRuns, FeatureCIRunners, FeatureCISecrets, FeaturePasskeys}
48}
49
50// MissingFeatures returns the features the CLI uses that have is lacking.
51func MissingFeatures(have []string) []string {
52	var missing []string
53	for _, f := range UsedFeatures() {
54		if !slices.Contains(have, f) {
55			missing = append(missing, f)
56		}
57	}
58	return missing
59}