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▄▀▄ ▄▀▀▀▀▄ ▀ ▄▄▀▀▀▀▀▀▄ ▀ ▀ ▀▀▀▀▀▀▀▄▀▄ ▄▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀ ▄▀▄ ▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▄ ▀▀▀ ▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀ ▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▄▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀ ▄▀▀▀▀▀▀▀▄▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▄▄▄▄▄▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀ ▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▄▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀ ▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▀▀▀ ▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▄▀▀ ▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀ ▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▄▀▀ ▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▄ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▄▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀ ▄▄▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▄

╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ Repo.zig ─────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯

╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯

.. Assignment.zig Attachment.zig Comment.zig Discussion.zig Fork.zig Grant.zig Issue.zig Patch.zig PatchRev.zig ╭─────────────────────────────────╮ │Repo.zig │ ╰─────────────────────────────────╯ User.zig

35 write, 36 owner, 37 38 pub fn atLeast(self: Role, min: Role) bool { 39 return @backingInt(self) >= @backingInt(min); 40 } 41 42 // whether a user may change an event: anyone's with the write role, 43 // otherwise only one they authored 44 pub fn canModify(self: Role, user_email: []const u8, author_email_maybe: ?[]const u8) bool { 45 if (self.atLeast(.write)) return true; 46 const author_email = author_email_maybe orelse return false; 47 return std.mem.eql(u8, user_email, author_email); 48 } 49 }; 50 51 pub const name_max_len = 32; 52 53 // the role a kind's tab needs for a write, or null when the tab is off or the 54 // kind has no tab 55 pub fn threadRole(self: Self, kind: evt.EventKind) ?Role { 56 return switch (kind) { 57 .discuss => self.discuss_role, 58 .issue => self.issue_role, 59 .patch => self.patch_role, 60 else => null, 61 }; 62 } 63 64 // the role `user_id_maybe` holds in the repo, or null when they hold none: its 65 // creator owns it, and anyone else gets the higher of the base role and their 66 // grant. `user_moment` is the owner's, which holds the grants. a null user is 67 // logged out. 68 pub fn roleOf( 69 comptime DB: type, 70 comptime hash_kind: hash.HashKind, 71 user_moment: DB.HashMap(.read_only), 72 arena: *std.heap.ArenaAllocator, 73 record: Record, 74 repo_id: *const [evt.event_id_size]u8, 75 user_id_maybe: ?[evt.event_id_size]u8, 76 ) !?Role { 77 // what the access fields give everyone, logged in or not 78 const base_maybe: ?Role = if (record.event.write_access == .public) .write else if (record.event.read_access == .public) .read else null; 79 const user_id = user_id_maybe orelse return base_maybe; 80 if (std.mem.eql(u8, record.event.user_id, &user_id)) return .owner; 81 82 const granted = (try evt.Grant.readRole(DB, hash_kind, user_moment, arena, repo_id, &user_id)) orelse return base_maybe; 83 const base = base_maybe orelse return granted; 84 return if (granted.atLeast(base)) granted else base; 85 } 86 87 // the moment keys `evt.merge` reads and writes for this kind 88 pub const merge_policy: evt.MergePolicy = .target_wins; 89 pub const record_map_key = "event-id->repo"; 90 pub const all_id_set_key = "repo-id-set"; 91 pub const name_index_key = "name->repo-id"; 92 93 pub fn validateName(name: []const u8) !void { 94 if (name.len == 0) return error.NameEmpty; 95 if (name.len > name_max_len) return error.NameTooLong; 96 if (std.mem.eql(u8, name, ".") or std.mem.eql(u8, name, "..")) return error.InvalidName; 97 98 for (name) |c| { 99 if (!std.ascii.isAlphanumeric(c) and c != '-' and c != '_' and c != '.') 100 return error.InvalidName; 101 } 102 } 103 104 pub fn consume( 105 comptime DB: type, 106 comptime hash_kind: hash.HashKind, 107 haxy_moment: DB.HashMap(.read_write), 108 event_id: *const [evt.event_id_size]u8, 109 record_maybe: ?Record, 110 arena: *std.heap.ArenaAllocator, 111 _: ?[]const u8, 112 ) !void { 113 const repo_key = hash.hashInt(hash_kind, event_id); 114 115 const event_id_to_repo_cursor = try haxy_moment.putCursor(hash.hashInt(hash_kind, "event-id->repo")); 116 const event_id_to_repo = try DB.HashMap(.read_write).init(event_id_to_repo_cursor); 117 118 const name_to_repo_id_cursor = try haxy_moment.putCursor(hash.hashInt(hash_kind, name_index_key)); 119 const name_to_repo_id = try DB.SortedMap(.read_write).init(name_to_repo_id_cursor); 120 121 var existing_record_maybe: ?Record = null; 122 const existing_cursor_maybe = try event_id_to_repo.getCursor(repo_key); 123 if (existing_cursor_maybe) |existing_cursor| { 124 const existing_repo = try DB.HashMap(.read_only).init(existing_cursor); 125 existing_record_maybe = try evt.read(Record, DB, hash_kind, arena, existing_repo); 126 } 127 128 var record_to_write = record_maybe orelse try evt.removedRecord(Record, DB, hash_kind, haxy_moment.readOnly(), existing_record_maybe); 129 130 if (!record_to_write.removed) try validateName(record_to_write.event.name); 131 132 if (existing_record_maybe) |existing_record| { 133 // updates preserve the original creation metadata 134 record_to_write.created_order = existing_record.created_order; 135 136 // drop the old active index; active values are re-added below 137 if (!existing_record.removed) { 138 _ = try name_to_repo_id.remove(existing_record.event.name); 139 } 140 } 141 142 const repo_cursor = try event_id_to_repo.putCursor(repo_key); 143 const repo = try DB.HashMap(.read_write).init(repo_cursor); 144 try evt.upsert(Record, DB, hash_kind, repo, record_to_write); 145 try evt.indexEvent(DB, hash_kind, haxy_moment, event_id, .repo, existing_record_maybe, record_to_write); 146 147 const order_key = evt.orderKeyDesc(record_to_write.created_order, event_id); 148 149 // the id set retains removed records so merges can carry removals 150 if (existing_cursor_maybe == null) { 151 const repo_id_set_cursor = try haxy_moment.putCursor(hash.hashInt(hash_kind, all_id_set_key)); 152 const repo_id_set = try DB.SortedSet(.read_write).init(repo_id_set_cursor); 153 try repo_id_set.put(&order_key); 154 } 155 156 if (!record_to_write.removed) { 157 try name_to_repo_id.put(record_to_write.event.name, .{ .bytes = event_id }); 158 } 159 } 160 161 // a repo plus its event id (the id is the on-disk repo directory name, so the 162 // caller can locate the working repo under <server>/repos/<hex event id>). 163 pub const RepoWithId = struct { 164 repo: Record, 165 event_id: [evt.event_id_size]u8, 166 }; 167 168 // a repo as one viewer sees it. without a role, the viewer may not see it. 169 pub const RepoWithRole = struct { 170 repo: Record, 171 event_id: [evt.event_id_size]u8, 172 role: ?Role, 173 }; 174 175 // read a repo by its name from its owner's user repo 176 pub fn readByName( 177 comptime DB: type, 178 comptime hash_kind: hash.HashKind, 179 user_moment: DB.HashMap(.read_only), 180 arena: *std.heap.ArenaAllocator, 181 name: []const u8, 182 ) !?RepoWithId { 183 const name_to_repo_id_cursor = try user_moment.getCursor(hash.hashInt(hash_kind, name_index_key)) orelse return null; 184 const name_to_repo_id = try DB.SortedMap(.read_only).init(name_to_repo_id_cursor); 185 const repo_id_cursor = try name_to_repo_id.getCursor(name) orelse return null; 186 var repo_id: [evt.event_id_size]u8 = undefined; 187 _ = try repo_id_cursor.readBytes(&repo_id); 188 const repo = (try readById(DB, hash_kind, user_moment, arena, &repo_id)) orelse return null; 189 return .{ .repo = repo, .event_id = repo_id }; 190 } 191 192 pub fn readById( 193 comptime DB: type, 194 comptime hash_kind: hash.HashKind, 195 haxy_moment: DB.HashMap(.read_only), 196 arena: *std.heap.ArenaAllocator, 197 id: []const u8, 198 ) !?Record { 199 const records_cursor = try haxy_moment.getCursor(hash.hashInt(hash_kind, record_map_key)) orelse return null; 200 const records = try DB.HashMap(.read_only).init(records_cursor); 201 const record_cursor = try records.getCursor(hash.hashInt(hash_kind, id)) orelse return null; 202 return try evt.read(Record, DB, hash_kind, arena, try DB.HashMap(.read_only).init(record_cursor)); 203 } 204