╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ ui.zig ───────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 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🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭2df93b3b..╮ 2df93b3b.. see-em: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (429) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig fork.zig lib.zig main.zig main_wasm.zig patch.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ╭─────────────────────────────────╮ │ui.zig │ ╰─────────────────────────────────╯ web.zig
770 try std.fmt.allocPrint(arena.allocator(), "{s}/patches/{s}", .{ prefix, @tagName(p.view) }) 771 else 772 try std.fmt.allocPrint(arena.allocator(), "{s}/patches/{s}/" ++ tag_filter_seg ++ "{s}", .{ prefix, @tagName(p.view), p.tag.slice() }); 773 }, 774 .repo_discussions => |t| blk: { 775 const prefix = try repoUrlPrefix(arena, t.name.slice()); 776 if (t.view == .edit) break :blk try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/edit", .{ prefix, t.selected.slice() }); 777 if (t.view == .description) break :blk try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/description", .{ prefix, t.selected.slice() }); 778 if (t.view == .new_comment) break :blk if (t.comment.len == 0) 779 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/new", .{ prefix, t.selected.slice() }) 780 else 781 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ comment_seg ++ "{s}/new", .{ prefix, t.selected.slice(), t.comment.slice() }); 782 if (t.view == .edit_comment) break :blk try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ comment_seg ++ "{s}/edit", .{ prefix, t.selected.slice(), t.comment.slice() }); 783 if (t.view == .remove) break :blk if (t.comment.len == 0) 784 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/remove", .{ prefix, t.selected.slice() }) 785 else 786 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ comment_seg ++ "{s}/remove", .{ prefix, t.selected.slice(), t.comment.slice() }); 787 if (t.comment.len != 0) break :blk if (t.comments_start == 0) 788 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ comment_seg ++ "{s}", .{ prefix, t.selected.slice(), t.comment.slice() }) 789 else 790 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ comment_seg ++ "{s}/" ++ start_seg ++ "{d}", .{ prefix, t.selected.slice(), t.comment.slice(), t.comments_start }); 791 if (t.selected.len != 0) break :blk if (t.comments_start == 0) 792 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}", .{ prefix, t.selected.slice() }) 793 else 794 try std.fmt.allocPrint(arena.allocator(), "{s}/" ++ discuss_seg ++ "{s}/" ++ start_seg ++ "{d}", .{ prefix, t.selected.slice(), t.comments_start }); 795 break :blk if (t.tag.len == 0) 796 try std.fmt.allocPrint(arena.allocator(), "{s}/discussions/{s}", .{ prefix, @tagName(t.view) }) 797 else 798 try std.fmt.allocPrint(arena.allocator(), "{s}/discussions/{s}/" ++ tag_filter_seg ++ "{s}", .{ prefix, @tagName(t.view), t.tag.slice() }); 799 }, 800 .repo_events => |e| blk: { 801 const prefix = try repoUrlPrefix(arena, e.name.slice()); 802 break :blk if (e.kind) |kind| 803 try std.fmt.allocPrint(arena.allocator(), "{s}/event:{s}/kind:{s}", .{ prefix, e.selected.slice(), @tagName(kind) }) 804 else 805 try std.fmt.allocPrint(arena.allocator(), "{s}/events/{s}", .{ prefix, @tagName(e.view) }); 806 }, 807 .repo_settings => |name| try std.fmt.allocPrint(arena.allocator(), "{s}/settings", .{try repoUrlPrefix(arena, name.slice())}), 808 .repo_auth => |name| try std.fmt.allocPrint(arena.allocator(), "{s}/auth", .{try repoUrlPrefix(arena, name.slice())}), 809 }; 810 } 811 812 pub fn fromUrl(path: []const u8) ?RoutablePage { 813 if (std.mem.eql(u8, path, "/")) return default; 814 if (path.len < 2 or path[0] != '/') return null; 815 var segments = std.mem.splitScalar(u8, path[1..], '/'); 816 const first = segments.next() orelse return null; 817 if (std.mem.eql(u8, first, "users")) return .{ .home_users = listStart(&segments) orelse return null }; 818 if (std.mem.eql(u8, first, "repos")) return .{ .home_repos = listStart(&segments) orelse return null }; 819 if (std.mem.eql(u8, first, "settings")) return if (segments.next() == null) .home_settings else null; 820 if (std.mem.eql(u8, first, "auth")) return if (segments.next() == null) .home_auth else null; 821 // "user/<name>[/repos[/start:<n>]|/settings|/auth]" 822 if (std.mem.eql(u8, first, "user")) { 823 const name = segments.next() orelse return null; 824 if (name.len == 0) return null; 825 const parsed = Array(evt.User.name_max_len).from(name) orelse return null; // name too long 826 const sub = segments.next() orelse return .{ .user_repos = .{ .name = parsed } }; 827 if (std.mem.eql(u8, sub, "repos")) return .{ .user_repos = .{ .name = parsed, .start = listStart(&segments) orelse return null } }; 828 if (std.mem.eql(u8, sub, "forks")) return .{ .user_forks = .{ .name = parsed, .start = listStart(&segments) orelse return null } }; 829 if (std.mem.eql(u8, sub, "settings")) return if (segments.next() == null) .{ .user_settings = parsed } else null; 830 if (std.mem.eql(u8, sub, "auth")) return if (segments.next() == null) .{ .user_auth = parsed } else null; 831 return null; // unknown sub-path 832 } 833 // "repo/<username>/<reponame>[/<tab tail>]"; the bare pair is the 834 // files root 835 if (std.mem.eql(u8, first, "repo")) { 836 const rest = segments.rest(); // "username/reponame[/...]" 837 const owner = segments.next() orelse return null; 838 const repo_name = segments.next() orelse return null; 839 // reject an empty username or reponame 840 if (owner.len == 0 or repo_name.len == 0) return null; 841 const pair = rest[0 .. owner.len + 1 + repo_name.len]; // "username/reponame" 842 if (segments.peek() != null) { 843 return repoSubRoute(pair, segments.rest()); 844 } 845 return repoFilesRoute(pair, null, "", "", 0); 846 } 847 return null; 848 } 849 850 // parse a local-mode url, which elides the "/repo/<owner>/<name>" prefix: 851 // "/" is the files root and the sub-paths follow directly. 852 pub fn fromUrlLocal(path: []const u8) ?RoutablePage { 853 if (std.mem.eql(u8, path, "/")) return repoFilesRoute("", null, "", "", 0); 854 if (path.len < 2 or path[0] != '/') return null; 855 return repoSubRoute("", path[1..]); 856 } 857 858 // the url prefix for a repo route's identity: "/repo/<identity>", or "" 859 // when the identity is elided. 860 fn repoUrlPrefix(arena: *std.heap.ArenaAllocator, identity: []const u8) ![]const u8 { 861 if (identity.len == 0) return ""; 862 return std.fmt.allocPrint(arena.allocator(), repo_segment ++ "{s}", .{identity}); 863 } 864 865 // true when the page builds at its content height on the web, letting the 866 // browser scroll the whole page, rather than being pinned to the viewport 867 pub fn fullHeight(self: RoutablePage) bool { 868 return switch (self) { 869 .repo_issues => |i| i.view == .resolve, 870 .repo_patches => |p| p.view == .resolve, 871 else => false, 872 }; 873 } 874 875 // the "owner/name" a repo route carries, null for any other route. the 876 // result borrows the route, so it must outlive the slice. 877 pub fn repoIdentity(self: *const RoutablePage) ?[]const u8 { 878 return switch (self.*) { 879 .repo_files => |*f| f.name.slice(), 880 .repo_commits => |*c| c.name.slice(), 881 .repo_refs => |*r| r.name.slice(), 882 .repo_issues => |*i| i.name.slice(), 883 .repo_patches => |*p| p.name.slice(), 884 .repo_discussions => |*t| t.name.slice(), 885 .repo_events => |*e| e.name.slice(), 886 .repo_settings, .repo_auth => |*name| name.slice(), 887 else => null, 888 }; 889 } 890 891 // the route this route's page lands on, with no tab or params: the users 892 // list, a user's repos, or a repo's files root. 893 pub fn pageRoot(self: RoutablePage) RoutablePage { 894 return switch (self.parent()) { 895 .home => .default, 896 .user => switch (self) { 897 .user_repos => |u| .{ .user_repos = .{ .name = u.name } }, 898 .user_forks => |u| .{ .user_repos = .{ .name = u.name } }, 899 .user_settings, .user_auth => |name| .{ .user_repos = .{ .name = name } }, 900 else => self, 901 }, 902 // every repo route stores the same identity, so it always fits 903 .repo => repoFilesRoute(self.repoIdentity() orelse return self, null, "", "", 0) orelse self, 904 }; 905 } 906 907 pub fn parent(self: RoutablePage) PageKind { 908 return switch (self) { 909 .home_users, .home_repos, .home_settings, .home_auth => .home, 910 .user_repos, .user_forks, .user_settings, .user_auth => .user, 911 .repo_files, .repo_commits, .repo_refs, .repo_issues, .repo_patches, .repo_discussions, .repo_events, .repo_settings, .repo_auth => .repo, 912 }; 913 } 914 915 // the dir a trailing "path:<dir>" names: the raw remainder ("" when 916 // absent, null when malformed) 917 fn pathValue(rest: []const u8) ?[]const u8 { 918 if (rest.len == 0) return ""; 919 if (!std.mem.startsWith(u8, rest, path_seg)) return null; 920 const dir = rest[path_seg.len..]; 921 return if (dir.len == 0) null else dir; 922 } 923 924 // a list route's tail: at most a "start:<n>" param, null on anything else 925 fn listStart(segments: *std.mem.SplitIterator(u8, .scalar)) ?usize { 926 var params = Params{}; 927 const word = params.scanTail(segments) catch return null; 928 if (word != null or !params.only(&.{.start})) return null; 929 return params.start(); 930 } 931 932 // parse the sub-path after a repo route's identity ("" for a local 933 // route): a tab keyword followed by "key:value" params in any order, plus 934 // the files tab's trailing "path:<dir>". 935 fn repoSubRoute(pair: []const u8, sub: []const u8) ?RoutablePage { 936 var segments = std.mem.splitScalar(u8, sub, '/'); 937 const tab = segments.next() orelse return null; 938 var params = Params{}; 939 if (std.mem.eql(u8, tab, "settings")) return if (segments.next() == null) .{ .repo_settings = Array(repo_route_max_len).from(pair) orelse return null } else null; 940 if (std.mem.eql(u8, tab, "auth")) return if (segments.next() == null) .{ .repo_auth = Array(repo_route_max_len).from(pair) orelse return null } else null; 941 if (std.mem.eql(u8, tab, "refs")) { 942 const word = params.scanTail(&segments) catch return null; 943 if (word != null or !params.only(&.{ .branch, .tag })) return null; 944 const ref = (params.ref() catch return null) orelse return repoRefsRoute(pair, .branch, ""); 945 const kind = std.meta.stringToEnum(RefKind, @tagName(ref.kind)) orelse return null; 946 return repoRefsRoute(pair, kind, ref.value); 947 } 948 if (std.mem.startsWith(u8, tab, issue_seg)) { 949 const issue_id = tab[issue_seg.len..]; 950 if (issue_id.len == 0) return null; 951 if (segments.peek()) |tail| { 952 if (std.mem.startsWith(u8, tail, comment_seg)) { 953 _ = segments.next(); 954 const comment_id = tail[comment_seg.len..]; 955 if (comment_id.len == 0) return null; 956 const word = params.scanTail(&segments) catch return null; 957 if (word) |last| { 958 if (!params.only(&.{})) return null; 959 if (std.mem.eql(u8, last, "new")) return repoThreadCommentNewRoute(.issue, pair, issue_id, comment_id); 960 if (std.mem.eql(u8, last, "edit")) return repoThreadCommentEditRoute(.issue, pair, issue_id, comment_id); 961 if (std.mem.eql(u8, last, "remove")) return repoThreadRemoveRoute(.issue, pair, issue_id, comment_id); 962 return null; 963 } 964 if (!params.only(&.{.start})) return null; 965 return repoThreadCommentRoute(.issue, pair, issue_id, comment_id, params.start() orelse return null); 966 } 967 } 968 const word = params.scanTail(&segments) catch return null; 969 if (word) |tail| { 970 if (std.mem.eql(u8, tail, "new")) return if (params.only(&.{})) repoThreadCommentNewRoute(.issue, pair, issue_id, "") else null; 971 if (std.mem.eql(u8, tail, "edit")) return if (params.only(&.{})) repoThreadEditRoute(.issue, pair, issue_id) else null; 972 if (std.mem.eql(u8, tail, "remove")) return if (params.only(&.{})) repoThreadRemoveRoute(.issue, pair, issue_id, "") else null; 973 if (std.mem.eql(u8, tail, "description")) return if (params.only(&.{})) repoThreadDescriptionRoute(.issue, pair, issue_id) else null; 974 if (std.mem.eql(u8, tail, "resolve")) { 975 if (!params.only(&.{.theirs})) return null; 976 return repoIssuesResolveRoute(pair, issue_id, params.values.get(.theirs) orelse ""); 977 } 978 return null; 979 } 980 if (!params.only(&.{.start})) return null; 981 return repoThreadCommentsRoute(.issue, pair, issue_id, params.start() orelse return null); 982 } 983 if (std.mem.startsWith(u8, tab, patch_seg)) { 984 const patch_id = tab[patch_seg.len..]; 985 if (patch_id.len == 0) return null; 986 if (segments.peek()) |tail| { 987 if (std.mem.startsWith(u8, tail, comment_seg)) { 988 _ = segments.next(); 989 const comment_id = tail[comment_seg.len..]; 990 if (comment_id.len == 0) return null; 991 const word = params.scanTail(&segments) catch return null; 992 if (word) |last| { 993 if (!params.only(&.{})) return null; 994 if (std.mem.eql(u8, last, "new")) return repoThreadCommentNewRoute(.patch, pair, patch_id, comment_id); 995 if (std.mem.eql(u8, last, "edit")) return repoThreadCommentEditRoute(.patch, pair, patch_id, comment_id); 996 if (std.mem.eql(u8, last, "remove")) return repoThreadRemoveRoute(.patch, pair, patch_id, comment_id); 997 return null; 998 } 999 if (!params.only(&.{.start})) return null; 1000 return repoThreadCommentRoute(.patch, pair, patch_id, comment_id, params.start() orelse return null); 1001 } 1002 } 1003 const word = params.scanTail(&segments) catch return null; 1004 if (word) |tail| { 1005 if (std.mem.eql(u8, tail, "new")) return if (params.only(&.{})) repoThreadCommentNewRoute(.patch, pair, patch_id, "") else null; 1006 if (std.mem.eql(u8, tail, "edit")) return if (params.only(&.{})) repoThreadEditRoute(.patch, pair, patch_id) else null; 1007 if (std.mem.eql(u8, tail, "remove")) return if (params.only(&.{})) repoThreadRemoveRoute(.patch, pair, patch_id, "") else null; 1008 if (std.mem.eql(u8, tail, "description")) return if (params.only(&.{})) repoThreadDescriptionRoute(.patch, pair, patch_id) else null; 1009 if (std.mem.eql(u8, tail, "resolve")) { 1010 if (!params.only(&.{.theirs})) return null; 1011 return repoPatchesResolveRoute(pair, patch_id, params.values.get(.theirs) orelse ""); 1012 } 1013 return null; 1014 } 1015 if (!params.only(&.{.start})) return null; 1016 return repoThreadCommentsRoute(.patch, pair, patch_id, params.start() orelse return null); 1017 } 1018 if (std.mem.startsWith(u8, tab, discuss_seg)) { 1019 const discussion_id = tab[discuss_seg.len..]; 1020 if (discussion_id.len == 0) return null; 1021 if (segments.peek()) |tail| { 1022 if (std.mem.startsWith(u8, tail, comment_seg)) { 1023 _ = segments.next(); 1024 const comment_id = tail[comment_seg.len..]; 1025 if (comment_id.len == 0) return null; 1026 const word = params.scanTail(&segments) catch return null; 1027 if (word) |last| { 1028 if (!params.only(&.{})) return null; 1029 if (std.mem.eql(u8, last, "new")) return repoThreadCommentNewRoute(.discuss, pair, discussion_id, comment_id); 1030 if (std.mem.eql(u8, last, "edit")) return repoThreadCommentEditRoute(.discuss, pair, discussion_id, comment_id); 1031 if (std.mem.eql(u8, last, "remove")) return repoThreadRemoveRoute(.discuss, pair, discussion_id, comment_id); 1032 return null; 1033 } 1034 if (!params.only(&.{.start})) return null; 1035 return repoThreadCommentRoute(.discuss, pair, discussion_id, comment_id, params.start() orelse return null); 1036 } 1037 } 1038 const word = params.scanTail(&segments) catch return null; 1039 if (word) |tail| { 1040 if (std.mem.eql(u8, tail, "new")) return if (params.only(&.{})) repoThreadCommentNewRoute(.discuss, pair, discussion_id, "") else null; 1041 if (std.mem.eql(u8, tail, "edit")) return if (params.only(&.{})) repoThreadEditRoute(.discuss, pair, discussion_id) else null; 1042 if (std.mem.eql(u8, tail, "remove")) return if (params.only(&.{})) repoThreadRemoveRoute(.discuss, pair, discussion_id, "") else null; 1043 if (std.mem.eql(u8, tail, "description")) return if (params.only(&.{})) repoThreadDescriptionRoute(.discuss, pair, discussion_id) else null; 1044 return null; 1045 } 1046 if (!params.only(&.{.start})) return null; 1047 return repoThreadCommentsRoute(.discuss, pair, discussion_id, params.start() orelse return null); 1048 } 1049 if (std.mem.eql(u8, tab, "issues")) { 1050 // the word is a list view; a filter with neither is never emitted. 1051 const word = params.scanTail(&segments) catch return null; 1052 const tag_value = params.values.get(.tag) orelse ""; 1053 const w = word orelse return if (params.only(&.{})) repoIssuesRoute(pair, .open, "", "") else null; 1054 // the conflicts list windows by an issue id, not a number, so it 1055 // reads the start param raw 1056 if (std.mem.eql(u8, w, "conflicts")) { 1057 if (!params.only(&.{.start})) return null; 1058 return repoIssuesConflictsRoute(pair, params.values.get(.start) orelse ""); 1059 } 1060 if (!params.only(&.{.tag})) return null; 1061 if (std.meta.stringToEnum(evt.Issue.Status, w)) |status| return repoIssuesRoute(pair, status, tag_value, ""); 1062 if (std.mem.eql(u8, w, "tags")) return repoThreadTagsRoute(.issue, pair, tag_value); 1063 if (std.mem.eql(u8, w, "new")) return if (tag_value.len == 0) repoThreadNewRoute(.issue, pair) else null; 1064 return null; 1065 } 1066 if (std.mem.eql(u8, tab, "patches")) { 1067 const word = params.scanTail(&segments) catch return null; 1068 const tag_value = params.values.get(.tag) orelse ""; 1069 const view = word orelse return if (params.only(&.{})) repoPatchesRoute(pair, .open, "", "") else null; 1070 if (std.mem.eql(u8, view, "conflicts")) { 1071 if (!params.only(&.{.start})) return null; 1072 return repoPatchesConflictsRoute(pair, params.values.get(.start) orelse ""); 1073 } 1074 if (!params.only(&.{.tag})) return null; 1075 if (std.meta.stringToEnum(evt.Patch.Status, view)) |status| return repoPatchesRoute(pair, status, tag_value, ""); 1076 if (std.mem.eql(u8, view, "tags")) return repoThreadTagsRoute(.patch, pair, tag_value); 1077 if (std.mem.eql(u8, view, "new")) return if (tag_value.len == 0) repoThreadNewRoute(.patch, pair) else null; 1078 if (std.mem.eql(u8, view, "drafts")) return if (tag_value.len == 0) repoPatchesDraftsRoute(pair) else null; 1079 return null; 1080 } 1081 if (std.mem.eql(u8, tab, "discussions")) { 1082 const word = params.scanTail(&segments) catch return null; 1083 const tag_value = params.values.get(.tag) orelse ""; 1084 const view = word orelse return if (params.only(&.{})) repoDiscussionsRoute(pair, "", "") else null; 1085 if (!params.only(&.{.tag})) return null; 1086 if (std.mem.eql(u8, view, "recent")) return repoDiscussionsRoute(pair, tag_value, ""); 1087 if (std.mem.eql(u8, view, "tags")) return repoThreadTagsRoute(.discuss, pair, tag_value); 1088 if (std.mem.eql(u8, view, "new")) return if (tag_value.len == 0) repoThreadNewRoute(.discuss, pair) else null; 1089 return null; 1090 } 1091 if (std.mem.eql(u8, tab, "events")) { 1092 const view = if (segments.next()) |word| 1093 std.meta.stringToEnum(EventsView, word) orelse return null 1094 else 1095 .active; 1096 return if (segments.next() == null) repoEventsRoute(pair, view, null, "") else null; 1097 } 1098 if (std.mem.startsWith(u8, tab, "event:")) { 1099 const event_id = tab["event:".len..]; 1100 const kind_segment = segments.next() orelse return null; 1101 if (!std.mem.startsWith(u8, kind_segment, "kind:")) return null; 1102 const kind = std.meta.stringToEnum(evt.EventKind, kind_segment["kind:".len..]) orelse return null; 1103 if (event_id.len == 0 or segments.next() != null) return null; 1104 return repoEventsRoute(pair, .active, kind, event_id); 1105 } 1106 if (std.mem.eql(u8, tab, files_seg)) { 1107 params.scanPairs(&segments) catch return null; 1108 if (!params.only(&.{ .line, .branch, .tag, .object })) return null; 1109 const line = params.line() orelse return null; 1110 const dir = pathValue(segments.rest()) orelse return null; 1111 const ref = (params.ref() catch return null) orelse 1112 return if (dir.len == 0) repoFilesRoute(pair, null, "", "", line) else null; 1113 return repoFilesRoute(pair, ref.kind, ref.value, dir, line); 1114 } 1115 if (std.mem.eql(u8, tab, commits_seg)) { 1116 params.scanPairs(&segments) catch return null; 1117 if (!params.only(&.{ .start, .branch, .tag, .object })) return null; 1118 const start = params.start() orelse return null; 1119 const ref = (params.ref() catch return null) orelse { 1120 const file = pathValue(segments.rest()) orelse return null; 1121 return if (file.len == 0) repoCommitsRoute(pair, null, "", start, "") else null; 1122 }; 1123 // the message page names its commit and nothing else 1124 if (std.mem.eql(u8, segments.rest(), message_seg)) 1125 return if (start == 0) repoCommitMessageRoute(pair, ref.kind, ref.value) else null; 1126 const file = pathValue(segments.rest()) orelse return null; 1127 return repoCommitsRoute(pair, ref.kind, ref.value, start, file); 1128 } 1129 return null; // unknown sub-path 1130 } 1131 1132 pub fn eql(a: RoutablePage, b: RoutablePage) bool { 1133 if (std.meta.activeTag(a) != std.meta.activeTag(b)) return false; 1134 return switch (a) { 1135 .home_users => |a_start| a_start == b.home_users, 1136 .home_repos => |a_start| a_start == b.home_repos, 1137 .user_repos => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_repos.name.slice()) and a_u.start == b.user_repos.start, 1138 .user_forks => |a_u| std.mem.eql(u8, a_u.name.slice(), b.user_forks.name.slice()) and a_u.start == b.user_forks.start, 1139 .user_settings => |a_name| std.mem.eql(u8, a_name.slice(), b.user_settings.slice()), 1140 .user_auth => |a_name| std.mem.eql(u8, a_name.slice(), b.user_auth.slice()), 1141 .repo_files => |a_f| std.mem.eql(u8, a_f.name.slice(), b.repo_files.name.slice()) and 1142 a_f.ref_kind == b.repo_files.ref_kind and 1143 std.mem.eql(u8, a_f.ref_value.slice(), b.repo_files.ref_value.slice()) and 1144 std.mem.eql(u8, a_f.path.slice(), b.repo_files.path.slice()) and 1145 a_f.line == b.repo_files.line, 1146 .repo_commits => |a_c| std.mem.eql(u8, a_c.name.slice(), b.repo_commits.name.slice()) and 1147 a_c.ref_or_oid == b.repo_commits.ref_or_oid and 1148 std.mem.eql(u8, a_c.value.slice(), b.repo_commits.value.slice()) and 1149 switch (a_c.content) { 1150 .diff => |a_d| switch (b.repo_commits.content) { 1151 .diff => |b_d| a_d.start == b_d.start and std.mem.eql(u8, a_d.path.slice(), b_d.path.slice()), 1152 .message => false, 1153 }, 1154 .message => std.meta.activeTag(b.repo_commits.content) == .message, 1155 }, 1156 .repo_refs => |a_r| std.mem.eql(u8, a_r.name.slice(), b.repo_refs.name.slice()) and a_r.kind == b.repo_refs.kind and std.mem.eql(u8, a_r.from.slice(), b.repo_refs.from.slice()), 1157 .repo_issues => |a_i| std.mem.eql(u8, a_i.name.slice(), b.repo_issues.name.slice()) and 1158 std.mem.eql(u8, a_i.tag.slice(), b.repo_issues.tag.slice()) and 1159 std.mem.eql(u8, a_i.selected.slice(), b.repo_issues.selected.slice()) and 1160 std.mem.eql(u8, a_i.theirs.slice(), b.repo_issues.theirs.slice()) and 1161 a_i.view == b.repo_issues.view and 1162 a_i.comments_start == b.repo_issues.comments_start and 1163 std.mem.eql(u8, a_i.comment.slice(), b.repo_issues.comment.slice()), 1164 .repo_discussions => |a_t| std.mem.eql(u8, a_t.name.slice(), b.repo_discussions.name.slice()) and 1165 std.mem.eql(u8, a_t.tag.slice(), b.repo_discussions.tag.slice()) and 1166 std.mem.eql(u8, a_t.selected.slice(), b.repo_discussions.selected.slice()) and 1167 a_t.view == b.repo_discussions.view and 1168 a_t.comments_start == b.repo_discussions.comments_start and 1169 std.mem.eql(u8, a_t.comment.slice(), b.repo_discussions.comment.slice()), 1170 .repo_patches => |a_p| std.mem.eql(u8, a_p.name.slice(), b.repo_patches.name.slice()) and 1171 std.mem.eql(u8, a_p.tag.slice(), b.repo_patches.tag.slice()) and 1172 std.mem.eql(u8, a_p.selected.slice(), b.repo_patches.selected.slice()) and 1173 std.mem.eql(u8, a_p.theirs.slice(), b.repo_patches.theirs.slice()) and 1174 a_p.view == b.repo_patches.view and 1175 a_p.comments_start == b.repo_patches.comments_start and 1176 std.mem.eql(u8, a_p.comment.slice(), b.repo_patches.comment.slice()), 1177 .repo_events => |a_e| std.mem.eql(u8, a_e.name.slice(), b.repo_events.name.slice()) and 1178 a_e.view == b.repo_events.view and 1179 a_e.kind == b.repo_events.kind and 1180 std.mem.eql(u8, a_e.selected.slice(), b.repo_events.selected.slice()), 1181 .repo_settings => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_settings.slice()), 1182 .repo_auth => |a_name| std.mem.eql(u8, a_name.slice(), b.repo_auth.slice()), 1183 else => true, 1184 }; 1185 } 1186 1187 // true when following a link from `b` to `a` (both repo routes) should reload 1188 // rather than stay in page 1189 pub fn repoPageChanged(a: RoutablePage, b: RoutablePage) bool { 1190 if (a.parent() != .repo or b.parent() != .repo) return false; 1191 if (std.meta.activeTag(a) == .repo_refs and std.meta.activeTag(b) == .repo_refs and 1192 a.repo_refs.from.len == 0 and b.repo_refs.from.len == 0) 1193 return !std.mem.eql(u8, a.repo_refs.name.slice(), b.repo_refs.name.slice()); 1194 return !a.eql(b); 1195 } 1196 1197 // true when `a` and `b` are the same user paginated to a different repos 1198 // window. switching between a user's tabs is in-page, so 1199 // only a changed `start` on the repos list navigates. 1200 pub fn userPageChanged(a: RoutablePage, b: RoutablePage) bool { 1201 return switch (a) { 1202 .user_repos => |aa| switch (b) { 1203 .user_repos => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and aa.start != bb.start, 1204 else => false, 1205 }, 1206 .user_forks => |aa| switch (b) { 1207 .user_forks => |bb| std.mem.eql(u8, aa.name.slice(), bb.name.slice()) and aa.start != bb.start, 1208 else => false, 1209 }, 1210 else => false, 1211 }; 1212 } 1213 1214 // true when `a` and `b` are the same home list tab paginated to a different 1215 // window. switching between the users/repos tabs is in-page (the home page 1216 // holds both lists), so only a changed `after` on the same tab navigates. 1217 pub fn homePageChanged(a: RoutablePage, b: RoutablePage) bool { 1218 return switch (a) { 1219 .home_users => |aa| switch (b) { 1220 .home_users => |bb| aa != bb, 1221 else => false, 1222 }, 1223 .home_repos => |aa| switch (b) { 1224 .home_repos => |bb| aa != bb, 1225 else => false, 1226 }, 1227 else => false, 1228 }; 1229 } 1230 }; 1231 1232 // a `RefOrOid` resolved against an on-disk repo to the commit oid it points at 1233 fn isUnreserved(c: u8) bool { 1234 return std.ascii.isAlphanumeric(c) or c == '-' or c == '.' or c == '_' or c == '~'; 1235 } 1236 1237 // percent-encode a ref name for use as a single url path segment. 1238 pub fn urlEncodeRef(aa: std.mem.Allocator, raw: []const u8) ![]const u8 { 1239 var out: std.Io.Writer.Allocating = .init(aa); 1240 try std.Uri.Component.percentEncode(&out.writer, raw, isUnreserved); 1241 return out.written(); 1242 } 1243 1244 // a resolved ref/oid for a repo opened with `repo_kind`/`repo_opts` 1245 pub fn ResolvedRefOrOid(comptime repo_kind: rp.RepoKind, comptime repo_opts: rp.RepoOpts(repo_kind)) type { 1246 return struct { 1247 pub const hex_len = hash.hexLen(repo_opts.hash); 1248 1249 // the concrete ref/oid (a null request resolves to the default branch) 1250 ref_or_oid: RoutablePage.RefOrOid, 1251 // its branch/tag name or oid, url-encoded (ref names may contain '/', so 1252 // the route layer — which splits on '/' — stores them encoded). duped 1253 // into `aa`. 1254 value: []const u8, 1255 // the commit oid it points at 1256 oid: [hex_len]u8, 1257 1258 const Self = @This(); 1259 1260 // resolve a requested ref/oid (null = the repo's default branch) to a 1261 // concrete ref/oid plus the commit oid it points at. `requested_value` is 1262 // the url-encoded form (as it appears in the route). null when it doesn't 1263 // resolve (an unknown branch/tag, or a malformed/unknown oid). 1264 pub fn init( 1265 repo: *rp.Repo(repo_kind, repo_opts), 1266 io: std.Io, 1267 aa: std.mem.Allocator, 1268 requested_ref_or_oid: ?RoutablePage.RefOrOid, 1269 requested_value: []const u8, 1270 ) !?Self { 1271 var ref_or_oid: RoutablePage.RefOrOid = requested_ref_or_oid orelse .branch; 1272 // the decoded ref name / oid to look up. a named ref arrives url-encoded. 1273 var value: []const u8 = if (requested_ref_or_oid == null) 1274 requested_value 1275 else 1276 std.Uri.percentDecodeInPlace(try aa.dupe(u8, requested_value)); 1277 // no ref named: fall back to HEAD's branch (or its oid when detached). 1278 if (requested_ref_or_oid == null) { 1279 var head_buf: [rf.MAX_REF_CONTENT_SIZE]u8 = undefined; 1280 if (repo.head(io, &head_buf)) |head| switch (head) { 1281 .ref => |r| { 1282 ref_or_oid = .branch; 1283 value = r.name; 1284 }, 1285 .oid => |o| { 1286 ref_or_oid = .object; 1287 value = o; 1288 }, 1289 } else |_| {} 1290 } 1291 1292 var oid: [hex_len]u8 = undefined; 1293 switch (ref_or_oid) { 1294 .object => { 1295 if (value.len != hex_len) return null; 1296 @memcpy(&oid, value); 1297 }, 1298 .branch, .tag => { 1299 const ref_kind: rf.RefKind = if (ref_or_oid == .branch) .head else .tag; 1300 oid = (repo.readRef(io, .{ .kind = ref_kind, .name = value }) catch null) orelse return null; 1301 }, 1302 } 1303 // store url-encoded so the route layer can hold the value verbatim. 1304 return .{ .ref_or_oid = ref_or_oid, .value = try urlEncodeRef(aa, value), .oid = oid }; 1305 } 1306 }; 1307 } 1308 1309 // where a repo page reads its on-disk repo from 1310 pub const RepoSource = struct { 1311 path: []const u8, 1312 repo_kind: rp.RepoKind, 1313 // the user's global git config, so local mode picks up their identity and 1314 // their signing and ssh settings. null on the server paths, which must not 1315 // read whoever runs the server. 1316 global_config_path: ?[]const u8 = null, 1317 1318 pub fn localInitOpts(self: RepoSource) rp.InitOpts { 1319 return .{ .path = self.path, .global_config_path = self.global_config_path }; 1320 } 1321 }; 1322 1323 // events created in local mode have no account behind them, so the commit 1324 // author comes from the repo's config, which the global config feeds into. 1325 pub const local_author_fallback = evt.CommitAuthor{ .name = "haxy", .email = "user@haxy" }; 1326 1327 pub fn localAuthor( 1328 src: RepoSource, 1329 io: std.Io, 1330 allocator: std.mem.Allocator, 1331 arena: *std.heap.ArenaAllocator, 1332 ) !evt.CommitAuthor { 1333 switch (src.repo_kind) { 1334 inline else => |repo_kind| { 1335 var any_repo = rp.AnyRepo(repo_kind, .{}).open(io, allocator, src.localInitOpts()) catch return local_author_fallback; 1336 defer any_repo.deinit(io, allocator); 1337 1338 switch (any_repo) { 1339 inline else => |*repo| { 1340 var config = try repo.listConfig(io, allocator); 1341 defer config.deinit(); 1342 1343 const user = config.sections.get("user") orelse return local_author_fallback; 1344 const name = user.get("name") orelse return local_author_fallback; 1345 const email = user.get("email") orelse return local_author_fallback; 1346 return .{ 1347 .name = try arena.allocator().dupe(u8, name), 1348 .email = try arena.allocator().dupe(u8, email), 1349 }; 1350 }, 1351 } 1352 }, 1353 } 1354 } 1355 1356 // per-connection mutable state. each SSH session / web session / local TUI 1357 // run gets its own. 1358 pub const Session = struct { 1359 data: Data = .{}, 1360 // session-lifetime allocations: login/user_id, persisted prefs, queued 1361 // actions. lives as long as the connection. 1362 arena: *std.heap.ArenaAllocator, 1363 // current page's allocations: page data and the page-scoped strings widgets 1364 // build (form actions, links). owned by Nav, swapped on each navigation, so 1365 // it doesn't accumulate over a long-lived session. on the web/wasm paths, 1366 // where a render is one-shot, this points at the same arena as `arena`. 1367 page_arena: *std.heap.ArenaAllocator, 1368 haxy_moment: ?evt.AdminDB.HashMap(.read_only) = null, // db cursor (null on the wasm side) 1369 // filesystem io and the path to <server>/repos, for opening on-disk repos 1370 // during page construction. both null on wasm, which has no filesystem and 1371 // rebuilds pages from the serialized snapshot rather than from disk. 1372 io: ?std.Io = null, 1373 admin_repo: ?*rp.Repo(.xit, evt.admin_repo_opts) = null, 1374 repos_dir: ?[]const u8 = null, 1375 // the single on-disk repo this session views, when running in local mode 1376 // (haxy invoked with no arguments inside a repo). null on the server paths, 1377 // which resolve repos from the admin db instead. 1378 local: ?RepoSource = null, 1379 pending: std.ArrayList(Action) = .empty, // actions queued by widgets this frame 1380 // focus id -> the live TextInput, refreshed each frame by the views that own 1381 // inputs. web/wasm form handling looks widgets up here by focus id. 1382 text_inputs: std.AutoHashMapUnmanaged(usize, *wgt.TextInput) = .empty, 1383 nav_back: bool = false, // set by input (escape) to request the native TUI pop a page; see Nav 1384 refresh_requested: bool = false, // set by input (ctrl+r) 1385 // a requested forward navigation. set this (via navigate) to move to a new 1386 // page; Nav.sync builds it and then copies it into current_page, clearing 1387 // this back to null. setting current_page directly only updates the url and 1388 // does not navigate. 1389 next_page: ?RoutablePage = null, 1390 is_terminal: bool = false, // true on remote SSH and local TUI 1391 // port the web UI is served on, for the TUI/SSH footer's "http://localhost:<port>..." 1392 // url. null on the web itself (no footer there). 1393 web_port: ?u16 = null, 1394 // a host operation requested by a widget 1395 host_request: ?HostRequest = null, 1396 quit_requested: bool = false, 1397 1398 pub const HostRequest = union(enum) { 1399 show_copyable_text: []const u8, 1400 sync_events, 1401 }; 1402 1403 const Self = @This(); 1404 1405 // serializable data sent down to web client 1406 pub const Data = struct { 1407 user_id: ?[]const u8 = null, 1408 // the logged-in user's name, for the views that show it 1409 user_name: ?[]const u8 = null, 1410 // a transient outcome to surface from the last /login POST attempt 1411 login_failure: ?Home.Auth.Login.Failure = null, 1412 // a transient local event-sync error 1413 sync_failure: ?[]const u8 = null, 1414 current_page: RoutablePage = .default, 1415 // whether to render the ANSI art backdrop 1416 enable_ansi: bool = true, 1417 // the selected ANSI art. the server serializes one image for WASM so 1418 // the browser does not need the whole build-generated collection. 1419 ansi_art: []const u8 = "", 1420 // the bound git-service ports. absent in local mode, where remote urls 1421 // are not shown. 1422 git_http_port: ?u16 = null, 1423 git_ssh_port: ?u16 = null, 1424 git_ssh_prefix: []const u8 = "", 1425 // true when this session views a single local repo. unlike `local` 1426 // (the host-side filesystem source) this travels in the snapshot, so 1427 // the wasm side also parses elided link urls and hides the multi-user 1428 // chrome. 1429 is_local: bool = false, 1430 }; 1431 1432 // a user-initiated state change. widgets enqueue these on the session during 1433 // input instead of mutating state or touching the DB themselves; the host 1434 // drains them each frame (see applyAndWritePending / applyPending). this keeps DB 1435 // side effects out of the widget tree and gives every render path one place to 1436 // turn a UI action into a state change + event. 1437 pub const Action = union(enum) { 1438 toggle_ansi, 1439 }; 1440 1441 pub fn init( 1442 arena: *std.heap.ArenaAllocator, 1443 repo: *rp.Repo(.xit, evt.admin_repo_opts), 1444 data: Data, 1445 ) !Self { 1446 var session = Self{ 1447 .data = data, 1448 .arena = arena, 1449 // until a host swaps in a page-scoped arena (Nav does this), page 1450 // allocations land in the session arena. on the web path that's the 1451 // intended behavior, since the whole arena is per-request. 1452 .page_arena = arena, 1453 .admin_repo = repo, 1454 .haxy_moment = try evt.currentMoment(evt.admin_repo_opts, repo), 1455 }; 1456 try session.loadUser(); 1457 return session; 1458 } 1459 1460 // load the logged-in user's name and persisted preferences from the db 1461 pub fn loadUser(self: *Self) !void { 1462 const user_id = self.data.user_id orelse return; 1463 const moment = self.haxy_moment orelse return; 1464 if (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, self.arena, user_id)) |user| { 1465 self.data.user_name = user.event.name; 1466 self.data.enable_ansi = user.event.enable_ansi; 1467 } 1468 } 1469 1470 // the commit author for an event this session creates, or null when it may 1471 // not create one 1472 pub fn eventAuthor(self: *Self) !?evt.CommitAuthor { 1473 if (self.data.is_local) { 1474 const src = self.local orelse return local_author_fallback; 1475 const io = self.io orelse return local_author_fallback; 1476 return try localAuthor(src, io, self.page_arena.child_allocator, self.page_arena); 1477 } 1478 const user_id = self.data.user_id orelse return null; 1479 const moment = self.haxy_moment orelse return null; 1480 const user = (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, self.page_arena, user_id)) orelse return null; 1481 return .{ .name = user.event.name, .email = user.event.email }; 1482 } 1483 1484 // queue an action for the host to drain this frame. 1485 pub fn push(self: *Self, action: Action) !void { 1486 try self.pending.append(self.arena.allocator(), action); 1487 } 1488 1489 // apply a single action's in-memory effect only (no persistence). 1490 fn apply(self: *Self, action: Action) void { 1491 switch (action) { 1492 .toggle_ansi => self.data.enable_ansi = !self.data.enable_ansi, 1493 } 1494 } 1495 1496 // drain the session's queued actions by applying them to the session. 1497 // used on the wasm path, which has no repo to persist to. 1498 pub fn applyPending(self: *Self) void { 1499 for (self.pending.items) |action| self.apply(action); 1500 self.pending.clearRetainingCapacity(); 1501 } 1502 1503 // drain the session's queued actions by applying them to the session and 1504 // writing them to the db 1505 pub fn applyAndWritePending( 1506 self: *Self, 1507 io: std.Io, 1508 allocator: std.mem.Allocator, 1509 repo: *rp.Repo(.xit, evt.admin_repo_opts), 1510 ) !void { 1511 defer self.pending.clearRetainingCapacity(); 1512 for (self.pending.items) |action| { 1513 self.apply(action); 1514 switch (action) { 1515 .toggle_ansi => if (self.data.user_id) |user_id| { 1516 try evt.User.toggleAnsi(evt.admin_repo_opts, io, allocator, repo, user_id); 1517 }, 1518 } 1519 } 1520 } 1521 1522 // reload the moment from the admin repo and re-read user preferences 1523 pub fn reloadMoment(self: *Self, allocator: std.mem.Allocator, repo: *rp.Repo(.xit, evt.admin_repo_opts)) !void { 1524 const moment = try evt.currentMoment(evt.admin_repo_opts, repo); 1525 self.haxy_moment = moment; 1526 1527 const user_id = self.data.user_id orelse return; 1528 var arena = std.heap.ArenaAllocator.init(allocator); 1529 defer arena.deinit(); 1530 if (try evt.User.readById(evt.AdminDB, evt.admin_repo_opts.hash, moment, &arena, user_id)) |user| { 1531 self.data.enable_ansi = user.event.enable_ansi; 1532 } 1533 } 1534 1535 // request a forward navigation to `route`; the host consumes next_page 1536 // (Nav.sync on the terminal, the wasm tick on the web). 1537 pub fn navigate(self: *Session, route: RoutablePage) !void { 1538 self.next_page = route; 1539 } 1540 }; 1541 1542 pub fn run(io: std.Io, allocator: std.mem.Allocator, session: *Session, repo_maybe: ?*rp.Repo(.xit, evt.admin_repo_opts)) !void { 1543 var nav = try Nav.init(allocator, session); 1544 defer nav.deinit(allocator); 1545 1546 var terminal = try term.Terminal.init(io, allocator); 1547 var terminal_live = true; 1548 defer if (terminal_live) terminal.deinit(io); 1549 1550 // set term as active so it will be properly cooked 1551 // when a panic/segfault happens 1552 term.setActive(&terminal); 1553 defer term.setActive(null); 1554 1555 while (!terminal.shouldQuit()) { 1556 const grid_changed = try terminal.render(&nav.root); 1557 1558 // process any inputs. 1559 // 1560 // if the grid didn't change, then first do a blocking 1561 // read, so the thread will sleep until further input. 1562 // after that, all remaining reads are non-blocking so 1563 // we can process the rest of the queued inputs. 1564 // 1565 // if the grid *did* change, then only do non-blocking 1566 // reads. we do not want to sleep the thread because 1567 // there may be an animation that requires more looping. 1568 var blocking = !grid_changed; 1569 while (try terminal.readKey(io, blocking)) |key| { 1570 blocking = false; 1571 try inputKey(allocator, &nav.root, key, session); 1572 } 1573 1574 if (session.host_request) |request| { 1575 session.host_request = null; 1576 switch (request) { 1577 .show_copyable_text => |copyable_text| { 1578 term.setActive(null); 1579 terminal.deinit(io); 1580 terminal_live = false; 1581 showCopyableText(io, copyable_text) catch |show_err| { 1582 terminal = try term.Terminal.init(io, allocator); 1583 terminal_live = true; 1584 term.setActive(&terminal); 1585 return show_err; 1586 }; 1587 terminal = try term.Terminal.init(io, allocator); 1588 terminal_live = true; 1589 term.setActive(&terminal); 1590 }, 1591 .sync_events => { 1592 try nav.root.build(allocator, .{ 1593 .min_size = .{ .width = null, .height = null }, 1594 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 1595 }, nav.root.getFocus()); 1596 _ = try terminal.render(&nav.root); 1597 try Repo.Events.performSync(allocator, session); 1598 }, 1599 } 1600 } 1601 1602 // persist queued actions when there's a repo; local mode has none, 1603 // so just apply in-memory 1604 if (repo_maybe) |repo| { 1605 try session.applyAndWritePending(io, allocator, repo); 1606 // reload so the next navigation builds its page from the current moment 1607 try session.reloadMoment(allocator, repo); 1608 } else { 1609 session.applyPending(); 1610 } 1611 1612 // reconcile navigation: forward to a new page, or back on escape. 1613 try nav.sync(allocator, session); 1614 1615 // the quit button (on the quit tab) asks the host to tear down. 1616 if (session.quit_requested) terminal.requestQuit(); 1617 1618 try nav.root.build(allocator, .{ 1619 .min_size = .{ .width = null, .height = null }, 1620 .max_size = .{ .width = terminal.size.width, .height = terminal.size.height }, 1621 }, nav.root.getFocus()); 1622 } 1623 } 1624 1625 fn showCopyableText(io: std.Io, copyable_text: []const u8) !void { 1626 const tty: ?std.Io.File = if (builtin.os.tag == .windows) 1627 null 1628 else 1629 try std.Io.Dir.cwd().openFile(io, "/dev/tty", .{ .mode = .read_write }); 1630 defer if (tty) |file| file.close(io); 1631 1632 const input = if (tty) |file| file else std.Io.File.stdin(); 1633 const output = if (tty) |file| file else std.Io.File.stdout(); 1634 1635 var write_buf: [1024]u8 = undefined; 1636 var writer = output.writer(io, &write_buf); 1637 try writer.interface.print("\x1b[2J\x1b[Hcopy the following text and then press enter to go back:\r\n\r\n{s}\r\n", .{copyable_text}); 1638 try writer.interface.flush(); 1639 1640 var read_buf: [1]u8 = undefined; 1641 var reader = input.reader(io, &read_buf); 1642 while (true) { 1643 const byte = try reader.interface.takeByte(); 1644 if (byte == '\r' or byte == '\n') return; 1645 } 1646 } 1647 1648 pub fn inputKey(allocator: std.mem.Allocator, root: *Widget, key: Key, session: *Session) !void { 1649 const root_focus = root.getFocus(); 1650 const focused_before = root_focus.grandchild_id; 1651 var activate_in_page_link = false; 1652 switch (key) { 1653 // request a navigation pop; the host's Nav.sync goes back a page, or 1654 // quits when there's no history left. 1655 .escape => { 1656 session.nav_back = true; 1657 return; 1658 }, 1659 .ctrl => |letter| switch (letter) { 1660 'r' => { 1661 session.refresh_requested = true; 1662 return; 1663 }, 1664 else => try root.input(allocator, key, root_focus), 1665 }, 1666 .enter => { 1667 if (root_focus.grandchild_id) |gid| { 1668 // follow a cross-page link 1669 if (crossPageLink(root_focus, gid, session.data)) |route| { 1670 return session.navigate(route); 1671 } 1672 if (rawLink(root_focus, gid)) |url| return requestRawLink(session, url); 1673 } 1674 activate_in_page_link = true; 1675 try root.input(allocator, key, root_focus); 1676 }, 1677 .mouse => |mouse| { 1678 if (mouse.action == .press and mouse.action.press == .left) { 1679 var clicked: ?usize = null; 1680 var iter = root_focus.children.iterator(); 1681 while (iter.next()) |entry| { 1682 const child = entry.value_ptr.*; 1683 if (!child.focus.focusable) continue; 1684 const r = child.rect; 1685 if (mouse.x >= r.x and mouse.y >= r.y and 1686 mouse.x < r.x + r.size.width and mouse.y < r.y + r.size.height) 1687 { 1688 clicked = entry.key_ptr.*; 1689 break; 1690 } 1691 } 1692 if (clicked) |focus_id| { 1693 // follow a cross-page link 1694 if (crossPageLink(root_focus, focus_id, session.data)) |route| { 1695 return session.navigate(route); 1696 } 1697 if (rawLink(root_focus, focus_id)) |url| { 1698 if (!mouse.ctrl) try requestRawLink(session, url); 1699 return; 1700 } 1701 root_focus.setFocus(focus_id); 1702 activate_in_page_link = true; 1703 } 1704 // forward the press into the widget tree so buttons (and any 1705 // future click-aware widgets) can react. widgets that don't 1706 // care about presses ignore it. 1707 try root.input(allocator, key, root_focus); 1708 } else { 1709 try root.input(allocator, key, root_focus); 1710 } 1711 }, 1712 else => try root.input(allocator, key, root_focus), 1713 } 1714 1715 const focused_after = root_focus.grandchild_id; 1716 if (!activate_in_page_link and focused_before == focused_after) return; 1717 const focus_id = focused_after orelse return; 1718 if (inPageLink(root_focus, focus_id, session.data)) |route| session.data.current_page = route; 1719 } 1720 1721 // a link to bytes the server serves directly rather than to a page route, so 1722 // it never resolves to a RoutablePage 1723 pub const raw_link_prefix = "ax:"; 1724 1725 // a route already loaded into the current page; focusing it changes the url 1726 // without rebuilding the page 1727 pub const in_page_link_prefix = "ai:"; 1728 1729 // an in-page tab's base route, or the exact current route when it is selected 1730 pub fn inPageTabLink(session: *Session, route: RoutablePage, selected: bool) ![]const u8 { 1731 const target = if (selected) session.data.current_page else route; 1732 return std.fmt.allocPrint(session.page_arena.allocator(), "{s}{s}", .{ in_page_link_prefix, try target.toUrl(session.page_arena) }); 1733 } 1734 1735 // a button the web renderer covers with a file picker that posts the chosen 1736 // file to the url after the prefix 1737 pub const file_input_prefix = "file:"; 1738 1739 // a submit button that overrides its enclosing form's action 1740 pub const submit_action_prefix = "submit:"; 1741 1742 // the url an `ax:` link points at, or null for anything else. a host that 1743 // suppresses the anchor's own navigation needs this to follow the link. 1744 pub fn rawLink(root_focus: *Focus, focus_id: usize) ?[]const u8 { 1745 const child = root_focus.children.get(focus_id) orelse return null; 1746 const custom = switch (child.focus.kind) { 1747 .custom => |c| c, 1748 else => return null, 1749 }; 1750 if (!std.mem.startsWith(u8, custom, raw_link_prefix)) return null; 1751 return custom[raw_link_prefix.len..]; 1752 } 1753 1754 fn requestRawLink(session: *Session, url: []const u8) !void { 1755 session.host_request = .{ .show_copyable_text = try terminalWebUrl(session.page_arena.allocator(), session, url) }; 1756 } 1757 1758 pub fn terminalWebUrl(allocator: std.mem.Allocator, session: *const Session, path: []const u8) ![]const u8 { 1759 return if (session.web_port) |port| 1760 try std.fmt.allocPrint(allocator, "http://localhost:{d}{s}", .{ port, path }) 1761 else 1762 path; 1763 } 1764 1765 // if the focus target at focus_id is an `a:` link that should navigate (a 1766 // different parent page, or a different files directory within the repo page), 1767 // return its route; otherwise null. lets a host turn a click / enter on such a 1768 // link into a navigation rather than a focus change. 1769 pub fn crossPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 1770 const current = data.current_page; 1771 const route = pageLink(root_focus, focus_id, data, "a:") orelse return null; 1772 // a link to a different parent page always navigates; within a page, a 1773 // files-directory / commits-page / list-window change navigates while tab 1774 // links stay in-page. 1775 if (route.parent() != current.parent() or RoutablePage.repoPageChanged(route, current) or RoutablePage.homePageChanged(route, current) or RoutablePage.userPageChanged(route, current)) return route; 1776 return null; 1777 } 1778 1779 // the route carried by an `ai:` focus target, or null for any other target 1780 pub fn inPageLink(root_focus: *Focus, focus_id: usize, data: Session.Data) ?RoutablePage { 1781 return pageLink(root_focus, focus_id, data, in_page_link_prefix); 1782 } 1783 1784 fn pageLink(root_focus: *Focus, focus_id: usize, data: Session.Data, prefix: []const u8) ?RoutablePage { 1785 const child = root_focus.children.get(focus_id) orelse return null; 1786 const custom = switch (child.focus.kind) { 1787 .custom => |c| c, 1788 else => return null, 1789 }; 1790 if (!std.mem.startsWith(u8, custom, prefix)) return null; 1791 const path = custom[prefix.len..]; 1792 // local sessions build (and parse) links with the repo identity elided 1793 return if (data.is_local) RoutablePage.fromUrlLocal(path) else RoutablePage.fromUrl(path); 1794 } 1795 1796 // a display author, resolved against the admin db at read time 1797 pub const Author = union(enum) { 1798 unknown, 1799 email: []const u8, // an email no user matches 1800 user_name: []const u8, 1801 1802 // the commit author line's email, resolved like initFromEmail 1803 pub fn init( 1804 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 1805 arena: *std.heap.ArenaAllocator, 1806 author_line: []const u8, 1807 ) !Author { 1808 return initFromEmail(haxy_moment, arena, evt.authorEmail(author_line)); 1809 } 1810 1811 // from a record's stored author email: it resolves to the user currently 1812 // holding it, else stays the email. the result is allocated in `arena`, 1813 // so the email may borrow transient memory. 1814 pub fn initFromEmail( 1815 haxy_moment: ?evt.AdminDB.HashMap(.read_only), 1816 arena: *std.heap.ArenaAllocator, 1817 author_email: ?[]const u8, 1818 ) !Author { 1819 const email = author_email orelse return .unknown; 1820 if (haxy_moment) |moment| { 1821 if (try evt.User.readByEmail(evt.AdminDB, evt.admin_repo_opts.hash, moment, arena, email)) |user| { 1822 return .{ .user_name = user.event.name }; 1823 } 1824 } 1825 return .{ .email = try arena.allocator().dupe(u8, email) }; 1826 } 1827 }; 1828 1829 // the "a:" link to user `name`'s page. 1830 pub fn userLink(page_arena: *std.heap.ArenaAllocator, name: []const u8) ![]const u8 { 1831 const parsed = RoutablePage.Array(evt.User.name_max_len).from(name) orelse return error.RouteTooLong; 1832 const url = try (RoutablePage{ .user_repos = .{ .name = parsed } }).toUrl(page_arena); 1833 return std.fmt.allocPrint(page_arena.allocator(), "a:{s}", .{url}); 1834 } 1835 1836 // a focusable " author " box showing `author`, linking to their user page 1837 // when it is a known user 1838 pub fn authorBox(allocator: std.mem.Allocator, page_arena: *std.heap.ArenaAllocator, author: Author) !wgt.TextBox { 1839 const text = switch (author) { 1840 .unknown => "", 1841 .email, .user_name => |t| t, 1842 }; 1843 var tb = try wgt.TextBox.init(allocator, text, .{ .border_style = .single, .rounded_corners = true, .wrap_kind = .none, .label = " author " }); 1844 errdefer tb.deinit(allocator); 1845 tb.getFocus().focusable = true; 1846 switch (author) { 1847 .user_name => |name| tb.getFocus().kind = .{ .custom = try userLink(page_arena, name) }, 1848 else => {}, 1849 } 1850 return tb; 1851 } 1852 1853 // native-TUI navigation 1854 pub const Nav = struct { 1855 root: Widget, 1856 route: RoutablePage, 1857 // backs the current page (its Page data and the page-scoped strings its 1858 // widgets build). owned here, swapped on each navigation. session.page_arena 1859 // tracks whichever of these is current so widgets allocate into it. 1860 arena: *std.heap.ArenaAllocator, 1861 history: std.ArrayList(Entry), 1862 1863 // each retained page keeps its own arena, freed when the page leaves the 1864 // stack (popped on back, evicted at cap, or on deinit). this is what keeps a 1865 // long-lived session from accumulating every page it ever visited. 1866 const Entry = struct { root: Widget, route: RoutablePage, arena: *std.heap.ArenaAllocator }; 1867 1868 // cap on retained back-history so the chain can't grow memory without bound 1869 const max_history: usize = 16; 1870 1871 pub fn init(allocator: std.mem.Allocator, session: *Session) !Nav { 1872 const arena = try allocator.create(std.heap.ArenaAllocator); 1873 arena.* = std.heap.ArenaAllocator.init(allocator); 1874 errdefer { 1875 arena.deinit(); 1876 allocator.destroy(arena); 1877 } 1878 1879 session.page_arena = arena; 1880 const route = session.data.current_page; 1881 1882 const page = try arena.allocator().create(Page); 1883 page.* = try Page.init(arena, session, route); 1884 return .{ 1885 .root = try initRoot(allocator, page, session), 1886 .route = route, 1887 .arena = arena, 1888 .history = .empty, 1889 }; 1890 } 1891 1892 pub fn deinit(self: *Nav, allocator: std.mem.Allocator) void { 1893 self.root.deinit(allocator); 1894 freeArena(allocator, self.arena); 1895 for (self.history.items) |*entry| { 1896 entry.root.deinit(allocator); 1897 freeArena(allocator, entry.arena); 1898 } 1899 self.history.deinit(allocator); 1900 } 1901 1902 fn freeArena(allocator: std.mem.Allocator, arena: *std.heap.ArenaAllocator) void { 1903 arena.deinit(); 1904 allocator.destroy(arena); 1905 } 1906 1907 // reconcile the displayed root with the session's navigation state. a 1908 // forward nav (current_page moved to a different parent page) pushes the 1909 // current root and builds the new page in a fresh arena; a back request 1910 // frees the current page and restores the previous one. when escape is 1911 // pressed with no history left we switch to the quit tab instead of quitting. 1912 pub fn sync(self: *Nav, allocator: std.mem.Allocator, session: *Session) !void { 1913 // refresh: rebuild the current page in place from a current moment 1914 if (session.refresh_requested) { 1915 session.refresh_requested = false; 1916 if (session.haxy_moment != null or session.local != null) { 1917 const arena = try allocator.create(std.heap.ArenaAllocator); 1918 arena.* = std.heap.ArenaAllocator.init(allocator); 1919 errdefer freeArena(allocator, arena); 1920 1921 session.page_arena = arena; 1922 1923 const route = session.data.current_page; 1924 const page = try arena.allocator().create(Page); 1925 page.* = try Page.init(arena, session, route); 1926 const new_root = try initRoot(allocator, page, session); 1927 1928 self.root.deinit(allocator); 1929 freeArena(allocator, self.arena); 1930 self.root = new_root; 1931 self.route = route; 1932 self.arena = arena; 1933 } 1934 return; 1935 } 1936 1937 if (session.nav_back) { 1938 session.nav_back = false; 1939 if (self.history.pop()) |entry| { 1940 self.root.deinit(allocator); 1941 freeArena(allocator, self.arena); 1942 self.root = entry.root; 1943 self.route = entry.route; 1944 self.arena = entry.arena; 1945 session.page_arena = entry.arena; 1946 session.data.current_page = entry.route; 1947 chooseAnsiArtForNavigation(session); 1948 return; 1949 } 1950 // nothing to go back to; switch to the quit confirmation 1951 const root_focus = self.root.getFocus(); 1952 var iter = root_focus.children.iterator(); 1953 while (iter.next()) |entry| { 1954 switch (entry.value_ptr.focus.kind) { 1955 .custom => |custom| if (std.mem.eql(u8, custom, Quit.tab_kind)) { 1956 root_focus.setFocus(entry.key_ptr.*); 1957 // a Stack only builds its selected child, so the quit 1958 // button isn't in the focus tree until a build runs with 1959 // the quit tab selected. build once, then send a 1960 // synthetic arrow_down to drop focus from the tab onto 1961 // the button so it's ready to confirm. 1962 try self.root.build(allocator, .{ 1963 .min_size = .{ .width = null, .height = 40 }, 1964 .max_size = .{ .width = 80, .height = null }, 1965 }, root_focus); 1966 try self.root.input(allocator, .arrow_down, root_focus); 1967 break; 1968 }, 1969 else => {}, 1970 } 1971 } 1972 return; 1973 } 1974 1975 // forward navigation: navigate() set next_page to the page to move to (a 1976 // cross-page link or tab change crossing pages) 1977 if (session.next_page) |route| { 1978 session.next_page = null; 1979 if (session.haxy_moment == null and session.local == null) return; 1980 // the page we navigated to becomes the current page 1981 session.data.current_page = route; 1982 1983 const arena = try allocator.create(std.heap.ArenaAllocator); 1984 arena.* = std.heap.ArenaAllocator.init(allocator); 1985 errdefer freeArena(allocator, arena); 1986 1987 session.page_arena = arena; 1988 1989 const page = try arena.allocator().create(Page); 1990 page.* = try Page.init(arena, session, route); 1991 const new_root = try initRoot(allocator, page, session); 1992 1993 try self.history.append(allocator, .{ .root = self.root, .route = self.route, .arena = self.arena }); 1994 // drop the oldest entry (freeing its widget tree and arena) once over cap 1995 if (self.history.items.len > max_history) { 1996 var oldest = self.history.orderedRemove(0); 1997 oldest.root.deinit(allocator); 1998 freeArena(allocator, oldest.arena); 1999 } 2000 self.root = new_root; 2001 self.route = route; 2002 self.arena = arena; 2003 } 2004 } 2005 }; 2006 2007 pub fn initRoot(allocator: std.mem.Allocator, page: *const Page, session: *Session) !Widget { 2008 const page_widget: Widget = switch (page.*) { 2009 .home => |*p| .{ .home = try .init(allocator, p, session) }, 2010 .user => |*p| .{ .user = try .init(allocator, p, session) }, 2011 .repo => |*p| .{ .repo = try .init(allocator, p, session) }, 2012 }; 2013 2014 chooseAnsiArtForNavigation(session); 2015 2016 // on the TUI/SSH, the page sits above a one-row footer showing the url 2017 var root = if (session.is_terminal) blk: { 2018 var box = try wgt.Box(Widget).init(allocator, .{ .border_style = null, .direction = .vert }); 2019 errdefer box.deinit(allocator); 2020 const bg_id = bg_blk: { 2021 var background = try widget.AnsiBackground.init(allocator, page_widget, session); 2022 errdefer background.deinit(allocator); 2023 const id = background.getFocus().id; 2024 try box.children.put(allocator, id, .{ .widget = .{ .background = background }, .rect = null, .min_size = null }); 2025 break :bg_blk id; 2026 }; 2027 { 2028 var footer = try widget.Footer.init(allocator, session); 2029 errdefer footer.deinit(allocator); 2030 try box.children.put(allocator, footer.getFocus().id, .{ .widget = .{ .footer = footer }, .rect = null, .min_size = .{ .width = null, .height = 1 } }); 2031 } 2032 box.getFocus().child_id = bg_id; 2033 break :blk Widget{ .box = box }; 2034 } else Widget{ .background = try widget.AnsiBackground.init(allocator, page_widget, session) }; 2035 errdefer root.deinit(allocator); 2036 2037 // input-owning views build their TextInputs in init, so reset their 2038 // registrations here 2039 session.text_inputs.clearRetainingCapacity(); 2040 2041 try root.build(allocator, .{ 2042 .min_size = .{ .width = null, .height = 40 }, 2043 .max_size = .{ .width = 100, .height = null }, 2044 }, root.getFocus()); 2045 2046 return root; 2047 } 2048 2049 // native and server-side sessions choose from the embedded collection. WASM 2050 // keeps the art serialized by the server instead. 2051 fn chooseAnsiArtForNavigation(session: *Session) void { 2052 if (comptime ansi_arts.len == 0) return; 2053 const io = session.io orelse return; 2054 var random: usize = undefined; 2055 io.random(std.mem.asBytes(&random)); 2056 session.data.ansi_art = ansi_arts[random % ansi_arts.len]; 2057 } 2058