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Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look1import { data } from "react-router";
2
3import {
4 type Capability,
5 type Repo,
6 type Result,
7 type Viewer,
8 abilities,
9 can,
10 granted,
11 httpStatus,
A desktop release goes out with what can be built. Linux is built on g1t's machines in every release; Windows and macOS each wait on a repository variable: a machine registered for them, or for Windows a cross build on Linux once aka.ms and download.visualstudio.microsoft.com are workflow-only domains, which is where the first release stopped. A platform with no machine is skipped and the download page says it is coming, with a word for the visitor whose platform this release lacks. The guide and CONTRIBUTING say so.12 mirrorWritable,
Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look13 needs,
14 permission,
15} from "@g1t/contracts";
16
17import type { ViewerAccess } from "./access";
A desktop release goes out with what can be built. Linux is built on g1t's machines in every release; Windows and macOS each wait on a repository variable: a machine registered for them, or for Windows a cross build on Linux once aka.ms and download.visualstudio.microsoft.com are workflow-only domains, which is where the first release stopped. A platform with no machine is skipped and the download page says it is coming, with a word for the visitor whose platform this release lacks. The guide and CONTRIBUTING say so.18import { mirrorReason } from "./mirror";
Merge project overview: one branch_drift call, spliced histories, cached tags, 6 repos calls instead of 2519import { projects, repos, work } from "./services.server";
Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look20import { getViewer } from "./session.server";
21
22type Context = Parameters<typeof getViewer>[0];
23type RepoParams = { owner?: string; repo?: string };
24
25/**
Fast pages, required checks on the branch, self-hosted runners, honest incidents26 * One count of a project's open issues and pull requests per request: the
27 * sidebar (root) and the project's tabs (its layout) both show them.
28 */
29const tallies = new WeakMap<object, Map<string, ReturnType<typeof work.counts>>>();
30
31export function countsFor(context: Context, params: RepoParams): ReturnType<typeof work.counts> {
32 const key = `${params.owner}/${params.repo}`.toLowerCase();
33 let seen = tallies.get(context);
34 if (!seen) tallies.set(context, (seen = new Map()));
35 let found = seen.get(key);
36 if (!found) {
37 found = work.counts({ namespace: params.owner ?? "", name: params.repo ?? "" }, getViewer(context));
38 seen.set(key, found);
39 }
40 return found;
41}
42
43/**
44 * The repositories of these ids the viewer can read: one call for all of
45 * them, then one each for any it leaves out (forks).
46 */
47export async function readableRepos(ids: string[], viewer: Viewer): Promise<Repo[]> {
48 if (ids.length === 0) return [];
49 const found = await repos.readable(ids, viewer).catch(() => [] as Repo[]);
50 const seen = new Set(found.map((repo) => repo.id));
51 const rest = await Promise.all(ids.filter((id) => !seen.has(id)).map((id) => repos.getById(id, viewer).catch(() => null)));
52 return [...found, ...rest.flatMap((repo) => (repo?.ok ? [repo.value] : []))];
53}
54
55/**
Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look56 * One lookup of a repository per request: the repository's layout and the
57 * page under it load at the same time and both need it.
58 */
59const lookups = new WeakMap<object, Map<string, Promise<Result<Repo>>>>();
60
61export function repoFor(context: Context, params: RepoParams): Promise<Result<Repo>> {
62 const key = `${params.owner}/${params.repo}`.toLowerCase();
63 let seen = lookups.get(context);
64 if (!seen) lookups.set(context, (seen = new Map()));
65 let found = seen.get(key);
66 if (!found) {
67 found = repos.get({ namespace: params.owner ?? "", name: params.repo ?? "" }, getViewer(context));
68 seen.set(key, found);
69 }
70 return found;
71}
72
Merge project overview: one branch_drift call, spliced histories, cached tags, 6 repos calls instead of 2573/**
74 * One lookup of a project per request: the project's layout and its
75 * overview load at the same time and both need it.
76 */
77const projectLookups = new WeakMap<object, Map<string, ReturnType<typeof projects.get>>>();
78
79export function projectFor(context: Context, params: RepoParams): ReturnType<typeof projects.get> {
80 const key = `${params.owner}/${params.repo}`.toLowerCase();
81 let seen = projectLookups.get(context);
82 if (!seen) projectLookups.set(context, (seen = new Map()));
83 let found = seen.get(key);
84 if (!found) {
85 found = projects.get(params.owner ?? "", params.repo ?? "", getViewer(context));
86 seen.set(key, found);
87 }
88 return found;
89}
90
Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look91/** The viewer's role on a repository and what it lets them do. */
92export function accessFor(viewer: Viewer, repo: Repo): ViewerAccess {
93 return {
94 role: permission(viewer, repo),
95 // A role of their own, not only because the repository is public.
96 insider: viewer ? granted(viewer, repo) != null : false,
97 can: abilities(viewer, repo),
98 };
99}
100
101/**
102 * The repository and the viewer's access to it, refusing with a 404 when
103 * they cannot read it and a 403 that says which role is needed when they
104 * can read it but not do `capability`.
105 */
106export async function requireRepo(context: Context, params: RepoParams, capability: Capability = "read") {
107 const viewer = getViewer(context);
108 const found = await repoFor(context, params);
109 if (!found.ok) {
110 if (found.error.code === "not_found" || found.error.code === "forbidden") throw data(null, { status: 404 });
111 throw data(found.error.message, { status: httpStatus(found.error) });
112 }
113 const access = accessFor(viewer, found.value);
114 if (!access.can.read) throw data(null, { status: 404 });
115 if (!access.can[capability]) throw data(needs(capability), { status: 403 });
116 return { viewer, repo: found.value, access };
117}
118
119/**
120 * Pages only people with a role of their own see (plans, memory,
121 * deployments, security, settings): a 404 for anyone else, as before.
122 */
123export async function requireInsider(context: Context, params: RepoParams, capability: Capability = "read") {
124 const found = await requireRepo(context, params, "read");
125 if (!found.access.insider) throw data(null, { status: 404 });
126 if (!found.access.can[capability]) throw data(needs(capability), { status: 403 });
127 return found;
128}
129
130/** The viewer's access, or none when the repository cannot be read. */
131export async function accessTo(context: Context, params: RepoParams): Promise<ViewerAccess> {
132 const found = await repoFor(context, params);
133 return found.ok ? accessFor(getViewer(context), found.value) : { role: null, insider: false, can: abilities(null, { id: "", namespace: "", isPrivate: true }) };
134}
135
136/**
137 * For an action: why the viewer may not do `capability` here, or null when
138 * they may. Not cached, since the action may change the repository.
139 */
140export async function refusal(context: Context, params: RepoParams, capability: Capability): Promise<string | null> {
141 const viewer = getViewer(context);
142 const found = await repos.get({ namespace: params.owner ?? "", name: params.repo ?? "" }, viewer);
143 if (!found.ok) return found.error.message;
144 return can(viewer, found.value, capability) ? null : needs(capability);
145}
146
147/** For an action whose page only people with `capability` see: a 403 that says why, otherwise nothing. */
148export async function requireCapability(context: Context, params: RepoParams, capability: Capability): Promise<void> {
149 const refused = await refusal(context, params, capability);
150 if (refused) throw data(refused, { status: 403 });
151}
A desktop release goes out with what can be built. Linux is built on g1t's machines in every release; Windows and macOS each wait on a repository variable: a machine registered for them, or for Windows a cross build on Linux once aka.ms and download.visualstudio.microsoft.com are workflow-only domains, which is where the first release stopped. A platform with no machine is skipped and the download page says it is coming, with a word for the visitor whose platform this release lacks. The guide and CONTRIBUTING say so.152
153/**
154 * For an action that would open, change or run something in the
155 * repository (an issue, a pull request, a label, a release, an agent, a
156 * deployment): a 409 that says why when it is a mirror that is not taken
157 * over (`mirrorWritable` in the contracts), otherwise nothing. The
158 * services refuse too; this answers before anything is tried. Settings,
159 * scans and anything that only reads stay open on a mirror.
160 */
161export async function requireWritableRepo(context: Context, params: RepoParams): Promise<void> {
162 const found = await repoFor(context, params);
163 if (!found.ok) return;
164 if (!mirrorWritable(found.value.mirror)) throw data(mirrorReason(found.value), { status: 409 });
165}

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