╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ try.zig ──────────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
947 "scatter", "gather", "encode", "decode", "render", "commit", 948 }; 949 950 fn longDescription(allocator: std.mem.Allocator, initial: []const u8) ![]u8 { 951 var writer = std.Io.Writer.Allocating.init(allocator); 952 defer writer.deinit(); 953 try writer.writer.print("{s}", .{initial}); 954 for (0..ui.detail_preview_lines) |line| 955 try writer.writer.print("\n{d} {s}", .{ line, scatter_words[line % scatter_words.len] }); 956 return writer.toOwnedSlice(); 957 } 958 959 // write `path` as 40 lines of mostly-stable filler. revision `c` and file 960 // index `fi` shift which lines change and the words used, so each (c, fi) 961 // yields a distinct multi-hunk diff against the previous revision. untouched 962 // lines stay byte-identical across revisions, so a bump in `c` is a scatter of 963 // small hunks rather than a full rewrite. 964 fn writeScatterFile(io: std.Io, allocator: std.mem.Allocator, repo_dir: std.Io.Dir, path: []const u8, fi: usize, c: usize) !void { 965 const content = try scatterContent(allocator, fi, c, null); 966 defer allocator.free(content); 967 const file = try repo_dir.createFile(io, path, .{}); 968 defer file.close(io); 969 try file.writeStreamingAll(io, content); 970 } 971 972 const ScatterEdit = struct { line: usize, text: []const u8 }; 973 974 fn scatterContent(allocator: std.mem.Allocator, fi: usize, c: usize, replacement: ?ScatterEdit) ![]u8 { 975 var writer = std.Io.Writer.Allocating.init(allocator); 976 defer writer.deinit(); 977 for (0..40) |line| { 978 if (replacement) |edit| if (line == edit.line) { 979 try writer.writer.print("{s}\n", .{edit.text}); 980 continue; 981 }; 982 const start = writer.written().len; 983 if ((line + fi + c) % 8 == 0) { 984 const tag = scatter_words[(line + fi + c * 3) % scatter_words.len]; 985 try writer.writer.print("rev {d} {s}", .{ c, tag }); 986 } 987 const target = 40 + (line * 17 + fi * 23) % 70; 988 var w = line + fi; 989 while (true) : (w += 1) { 990 const word = scatter_words[w % scatter_words.len]; 991 const len = writer.written().len - start; 992 if (len >= target or len + 1 + word.len > 120) break; 993 if (len == 0) 994 try writer.writer.print("{s}", .{word}) 995 else 996 try writer.writer.print(" {s}", .{word}); 997 } 998 try writer.writer.writeByte('\n'); 999 } 1000 return writer.toOwnedSlice(); 1001 } 1002 1003 // tag the current HEAD with the next three sequential versions, so the refs 1004 // tab has enough tags to page through 1005 fn addNextTags(repo: *rp.Repo(.xit, .{}), io: std.Io, allocator: std.mem.Allocator, n: *usize) !void { 1006 for (0..3) |_| { 1007 var buf: [16]u8 = undefined; 1008 const name = try std.fmt.bufPrint(&buf, "v{d}", .{n.*}); 1009 _ = try repo.addTag(io, allocator, .{ .name = name }); 1010 n.* += 1; 1011 } 1012 } 1013 1014 fn commitTree( 1015 io: std.Io, 1016 allocator: std.mem.Allocator, 1017 repo: *rp.Repo(.xit, .{}), 1018 oid: *const [hash.hexLen(.sha1)]u8, 1019 ) ![hash.hexLen(.sha1)]u8 { 1020 var moment = try repo.core.latestMoment(); 1021 const state = rp.Repo(.xit, .{}).State(.read_only){ .core = &repo.core, .extra = .{ .moment = &moment } }; 1022 var object = try obj.Object(.xit, .{}).init(state, io, allocator, oid); 1023 defer object.deinit(); 1024 return switch (object.content) { 1025 .commit => |commit| commit.tree, 1026 else => error.InvalidObject, 1027 }; 1028 } 1029 1030 fn seedPatchRevision( 1031 io: std.Io, 1032 allocator: std.mem.Allocator, 1033 repos_path: []const u8, 1034 patch_id: *const [evt.event_id_size]u8, 1035 title: []const u8, 1036 author: evt.CommitAuthor, 1037 timestamp: u64, 1038 random: std.Random, 1039 base_oid: [hash.hexLen(.sha1)]u8, 1040 path: []const u8, 1041 contents: []const []const u8, 1042 ) !void { 1043 const patch_hex = std.fmt.bytesToHex(patch_id.*, .lower); 1044 const fork_path = try fork.forkPath(allocator, repos_path, &patch_hex); 1045 defer allocator.free(fork_path); 1046 var fork_repo = try rp.Repo(.xit, .{}).open(io, allocator, .{ .path = fork_path, .require_repo_root = true }); 1047 defer fork_repo.deinit(io, allocator); 1048 1049 try fork_repo.addConfig(io, allocator, .{ .name = "core.bare", .value = "false" }); 1050 { 1051 var reset = try fork_repo.reset(io, allocator, .{ .target = .{ .oid = &base_oid } }); 1052 defer reset.deinit(); 1053 } 1054 const base_tree_oid = try commitTree(io, allocator, &fork_repo, &base_oid); 1055 var source_oid = base_oid; 1056 var fork_dir = try std.Io.Dir.cwd().openDir(io, fork_path, .{}); 1057 defer fork_dir.close(io); 1058 var writer = std.Io.Writer.Allocating.init(allocator); 1059 defer writer.deinit(); 1060 if (std.fs.path.dirname(path)) |dir| try fork_dir.createDirPath(io, dir); 1061 for (contents, 0..) |content, i| { 1062 { 1063 const file = try fork_dir.createFile(io, path, .{}); 1064 defer file.close(io); 1065 try file.writeStreamingAll(io, content); 1066 } 1067 try fork_repo.add(io, allocator, &.{path}); 1068 writer.clearRetainingCapacity(); 1069 try writer.writer.print("{s} ({d}/{d})", .{ title, i + 1, contents.len }); 1070 source_oid = try fork_repo.commit(io, allocator, .{ .message = writer.written(), .timestamp = timestamp + i }); 1071 } 1072 try fork_repo.patchAll(io, allocator, null); 1073 try fork_repo.addConfig(io, allocator, .{ .name = "core.bare", .value = "true" }); 1074 // the commits above skipped the push path, so index the patch branch by hand 1075 try find.refresh(.{}, io, allocator, &fork_repo); 1076 _ = try fork_repo.garbageCollect(io, allocator, .{}); 1077 try fork_dir.deleteFile(io, path); 1078 const revision_id = evt.EventWithId.randomId(random); 1079 const head_tree_oid = try commitTree(io, allocator, &fork_repo, &source_oid); 1080 const revision: evt.PatchRev = .{ 1081 .base_oid = &base_oid, 1082 .source_oid = &source_oid, 1083 .message = title, 1084 }; 1085 const revision_timestamp = timestamp + 3; 1086 const tree_entries = [_]evt.EventTreeEntry{ 1087 .{ .tree = .{ .name = "base", .oid = &base_tree_oid } }, 1088 .{ .tree = .{ .name = "head", .oid = &head_tree_oid } }, 1089 }; 1090 try evt.consume(.server, .fork, .xit, .{}, io, allocator, &fork_repo, evt.events_ref, &.{.{ 1091 .id = std.fmt.bytesToHex(revision_id, .lower), 1092 .timestamp = revision_timestamp, 1093 .author = author, 1094 .tree_entries = &tree_entries, 1095 .event = .{ .patchrev = revision }, 1096 }}); 1097 1098 var arena = std.heap.ArenaAllocator.init(allocator); 1099 defer arena.deinit(); 1100 const moment = try evt.currentMoment(.{}, &fork_repo); 1101 const revision_record = (try evt.PatchRev.readById(evt.EventDB(.sha1), .sha1, moment, &arena, &revision_id)) orelse return error.NotFound; 1102 const patch_record = (try evt.Patch.readById(evt.EventDB(.sha1), .sha1, moment, &arena, patch_id)) orelse return error.NotFound; 1103 var patch = patch_record.event; 1104 patch.revision = evt.Patch.Revision.fromRecord(revision_id, revision_record); 1105 try evt.consume(.server, .fork, .xit, .{}, io, allocator, &fork_repo, evt.events_ref, &.{.{ 1106 .id = patch_hex, 1107 .timestamp = revision_timestamp + 1, 1108 .author = author, 1109 .event = .{ .patch = patch }, 1110 }}); 1111 } 1112 1113 fn seedPatches( 1114 io: std.Io, 1115 allocator: std.mem.Allocator, 1116 server_path: []const u8, 1117 admin_repo: *rp.Repo(.xit, evt.admin_repo_opts), 1118 target_repo: *rp.Repo(.xit, .{}), 1119 repo_id: *const [evt.event_id_size]u8, 1120 user_id: *const [evt.event_id_size]u8, 1121 random: std.Random, 1122 ) !void { 1123 const patch_data = [_]struct { 1124 title: []const u8, 1125 description: []const u8, 1126 tags: []const u8, 1127 status: ?evt.Patch.StatusKind, 1128 alpha_edit: ?ScatterEdit = null, 1129 // based behind master, so merging it makes a merge commit 1130 behind_master: bool = false, 1131 }{ 1132 .{ 1133 .title = "Draft a faster dependency scanner", 1134 .description = "Rework dependency discovery so a large workspace can be scanned without repeatedly opening the same manifests.", 1135 .tags = "performance build", 1136 .status = null, 1137 }, 1138 .{ 1139 .title = "Remove the legacy configuration loader", 1140 .description = "Delete the compatibility loader now that the replacement format has shipped and the migration warning has been available for a full release.", 1141 .tags = "cleanup config", 1142 .status = .merged, 1143 .behind_master = true, 1144 }, 1145 .{ 1146 .title = "Cache parsed manifests between commands", 1147 .description = "Keep parsed manifests in the command context so consecutive operations do not repeat identical filesystem and parsing work.", 1148 .tags = "performance cache", 1149 .status = .closed, 1150 }, 1151 .{ 1152 .title = "Add structured output to the inspect command", 1153 .description = "Add a stable JSON representation of inspect results for scripts and editor integrations.", 1154 .tags = "enhancement cli", 1155 .status = .open, 1156 }, 1157 .{ 1158 .title = "Edit an adjacent line in alpha.txt", 1159 .description = "This patch can be cleanly merged by haxy, while git throws a merge conflict!", 1160 .tags = "merge", 1161 .status = .open, 1162 .alpha_edit = .{ .line = 2, .text = "adjust alpha beside the latest scatter edit" }, 1163 }, 1164 .{ 1165 .title = "Edit a conflicting line in alpha.txt", 1166 .description = "Both source and squash merges conflict with a different edit to the same line on master.", 1167 .tags = "merge", 1168 .status = .open, 1169 .alpha_edit = .{ .line = 3, .text = "replace alpha with a conflicting edit" }, 1170 }, 1171 }; 1172 1173 const repos_path = try std.fs.path.join(allocator, &.{ server_path, "repos" }); 1174 defer allocator.free(repos_path); 1175 const patch_author = evt.CommitAuthor{ .name = "admin", .email = "admin@example.test" }; 1176 var patch_ids: [patch_data.len][evt.event_id_size]u8 = undefined; 1177 for (patch_data, 0..) |patch, i| { 1178 const timestamp: u64 = @intCast(500 + i * 10); 1179 patch_ids[i] = evt.EventWithId.randomId(random); 1180 const patch_hex = std.fmt.bytesToHex(patch_ids[i], .lower); 1181 const path = try fork.create(.{}, io, allocator, repos_path, admin_repo, .{ 1182 .id = patch_hex, 1183 .user_id = user_id.*, 1184 .repo_id = repo_id.*, 1185 .title = patch.title, 1186 .description = patch.description, 1187 .tags = patch.tags, 1188 .target_branch = "master", 1189 .author = patch_author, 1190 .timestamp = timestamp, 1191 }); 1192 allocator.free(path); 1193 1194 // prepare the patch's base and file contents, then seed its commits and revision 1195 { 1196 var arena = std.heap.ArenaAllocator.init(allocator); 1197 defer arena.deinit(); 1198 const aa = arena.allocator(); 1199 var base_oid = (try target_repo.readRef(io, .{ .kind = .head, .name = "master" })) orelse return error.NotFound; 1200 if (patch.alpha_edit != null or patch.behind_master) { 1201 // v30 precedes the last scatter commit, even after the sample merge 1202 const tag_oid = (try target_repo.readRef(io, .{ .kind = .tag, .name = "v30" })) orelse return error.NotFound; 1203 var moment = try target_repo.core.latestMoment(); 1204 const state = rp.Repo(.xit, .{}).State(.read_only){ .core = &target_repo.core, .extra = .{ .moment = &moment } }; 1205 var tag = try obj.Object(.xit, .{}).init(state, io, allocator, &tag_oid); 1206 defer tag.deinit(); 1207 base_oid = switch (tag.content) { 1208 .tag => |value| value.target, 1209 else => return error.InvalidObject, 1210 }; 1211 } 1212 var contents: [3][]const u8 = undefined; 1213 const file_path: []const u8, const count: usize = if (patch.alpha_edit) |edit| blk: { 1214 // rev 29 first changes line 4; edit that line or the one above it 1215 contents[0] = try scatterContent(aa, 0, 28, edit); 1216 break :blk .{ "src/alpha.txt", 1 }; 1217 } else blk: { 1218 var writer = std.Io.Writer.Allocating.init(allocator); 1219 defer writer.deinit(); 1220 for (&contents, 0..) |*content, part| { 1221 try writer.writer.print("{s}: part {d}\n", .{ patch.title, part + 1 }); 1222 content.* = try aa.dupe(u8, writer.written()); 1223 } 1224 break :blk .{ "patch.txt", contents.len }; 1225 }; 1226 try seedPatchRevision(io, allocator, repos_path, &patch_ids[i], patch.title, patch_author, timestamp + 1, random, base_oid, file_path, contents[0..count]); 1227 } 1228 const status = patch.status orelse continue; 1229 const fork_path = try fork.forkPath(allocator, repos_path, &patch_hex); 1230 defer allocator.free(fork_path); 1231 try pch.publish(.{}, io, allocator, admin_repo, target_repo, fork_path, .{ 1232 .id = patch_hex, 1233 .user_id = user_id.*, 1234 .repo_id = repo_id.*, 1235 .author = patch_author, 1236 .timestamp = timestamp + 6, 1237 }); 1238 1239 if (status == .merged) { 1240 try pch.mergeAndRemoveFork(.{}, io, allocator, repos_path, admin_repo, target_repo, .{ 1241 .id = patch_hex, 1242 .revision = .source, 1243 .author = patch_author, 1244 .timestamp = timestamp + 7, 1245 }); 1246 } else if (status != .open) { 1247 try evt.Patch.update(.server, .xit, .{}, io, allocator, target_repo, &patch_ids[i], .{ .status = status }, patch_author); 1248 } 1249 } 1250 1251 // seed a small comment tree on the newest patch 1252 var comment_ids: [5][evt.event_id_size]u8 = undefined; 1253 for (&comment_ids) |*id| id.* = evt.EventWithId.randomId(random); 1254 const comment_bodies = [_][]const u8{ 1255 "This also needs to preserve the executable bit for files nested inside generated directories.", 1256 "I tested the archive path and the direct-copy path; both currently lose the mode.", 1257 "The archive writer is the right place to centralize it, since every exporter already goes through that layer.", 1258 "Please include a regression fixture with a mix of executable and ordinary files.", 1259 "I'll add that fixture and cover both supported archive formats.", 1260 }; 1261 var comments: [comment_ids.len]evt.EventWithId = undefined; 1262 for (&comments, 0..) |*comment, i| { 1263 comment.* = .{ 1264 .id = std.fmt.bytesToHex(comment_ids[i], .lower), 1265 .timestamp = @intCast(700 + i), 1266 .author = .{ .name = if (i % 2 == 0) "alice" else "bob", .email = if (i % 2 == 0) "alice@example.test" else "bob@example.test" }, 1267 .event = .{ .comment = .{ 1268 .thread_id = std.fmt.bytesToHex(patch_ids[patch_ids.len - 1], .lower), 1269 .parent_id = switch (i) { 1270 0, 1 => std.fmt.bytesToHex(patch_ids[patch_ids.len - 1], .lower), 1271 2, 4 => std.fmt.bytesToHex(comment_ids[0], .lower), 1272 3 => std.fmt.bytesToHex(comment_ids[2], .lower), 1273 else => unreachable, 1274 }, 1275 .body = comment_bodies[i], 1276 } }, 1277 }; 1278 } 1279 try evt.consume(.server, .repo, .xit, .{}, io, allocator, target_repo, evt.events_ref, &comments); 1280 1281 // create divergent metadata edits on the next three patches 1282 var patch_arena = std.heap.ArenaAllocator.init(allocator); 1283 defer patch_arena.deinit(); 1284 const moment = try evt.currentMoment(.{}, target_repo); 1285 var values: [3]evt.Patch = undefined; 1286 for (1..4) |i| { 1287 const record = (try evt.Patch.readById(evt.EventDB(.sha1), .sha1, moment, &patch_arena, &patch_ids[i])) orelse return error.NotFound; 1288 values[i - 1] = record.event; 1289 } 1290 var ours_values = values; 1291 ours_values[0].title = "Drop the legacy configuration loader"; 1292 ours_values[0].tags = "cleanup config breaking"; 1293 const closed_description = try longDescription( 1294 patch_arena.allocator(), 1295 "Cache parsed manifests for the lifetime of a command invocation and invalidate entries when their files change.", 1296 ); 1297 ours_values[1].description = closed_description; 1298 ours_values[2].description = "Add JSON output to inspect with versioned field names and deterministic object ordering."; 1299 var theirs_values = values; 1300 theirs_values[0].title = "Delete compatibility configuration support"; 1301 theirs_values[0].tags = "config maintenance"; 1302 theirs_values[1].description = "Keep a process-wide manifest cache shared by every command and refresh it after writes."; 1303 theirs_values[2].description = "Expose inspect results as newline-delimited JSON so callers can stream large repositories."; 1304 1305 const seed_tip = (try target_repo.readRef(io, evt.events_ref)) orelse return error.NotFound; 1306 const other_ref = xit.ref.Ref{ .kind = .head, .name = "haxy/patch-other" }; 1307 var ours = [_]evt.EventWithId{ 1308 .{ 1309 .id = std.fmt.bytesToHex(patch_ids[1], .lower), 1310 .timestamp = 800, 1311 .author = .{ .name = "alice", .email = "alice@example.test" }, 1312 .event = .{ .patch = ours_values[0] }, 1313 }, 1314 .{ 1315 .id = std.fmt.bytesToHex(patch_ids[2], .lower), 1316 .timestamp = 801, 1317 .author = .{ .name = "alice", .email = "alice@example.test" }, 1318 .event = .{ .patch = ours_values[1] }, 1319 }, 1320 .{ 1321 .id = std.fmt.bytesToHex(patch_ids[3], .lower), 1322 .timestamp = 802, 1323 .author = .{ .name = "alice", .email = "alice@example.test" }, 1324 .event = .{ .patch = ours_values[2] }, 1325 }, 1326 }; 1327 1328 var theirs = ours; 1329 theirs[0].timestamp = 810; 1330 theirs[0].author = .{ .name = "bob", .email = "bob@example.test" }; 1331 theirs[0].event.patch = theirs_values[0]; 1332 theirs[1].timestamp = 811; 1333 theirs[1].author = .{ .name = "bob", .email = "bob@example.test" }; 1334 theirs[1].event.patch = theirs_values[1]; 1335 theirs[2].timestamp = 812; 1336 theirs[2].author = .{ .name = "bob", .email = "bob@example.test" }; 1337 theirs[2].event.patch = theirs_values[2]; 1338 1339 try evt.consume(.server, .repo, .xit, .{}, io, allocator, target_repo, evt.events_ref, &ours); 1340 try commitEventsAtRef(io, allocator, target_repo, other_ref, &theirs, seed_tip); 1341 { 1342 var merge = try target_repo.mergeAtRef(io, allocator, .{ .kind = .full, .action = .{ .new = .{ .source = &.{.{ .ref = other_ref }} } } }, evt.events_ref, null); 1343 defer merge.deinit(); 1344 if (merge.result != .success) return error.MergeFailed; 1345 } 1346 try target_repo.removeBranch(io, .{ .name = other_ref.name }); 1347 try evt.consume(.server, .repo, .xit, .{}, io, allocator, target_repo, evt.events_ref, &.{}); 1348 try pch.writeBranchPatch(.server, .xit, .{}, io, allocator, target_repo, std.fmt.bytesToHex(evt.EventWithId.randomId(random), .lower), .{ 1349 .title = "Merge the existing feature branch", 1350 .description = "This patch tracks the feature branch in this repo without creating a fork.", 1351 .tags = "feature", 1352 .source_branch = "feature", 1353 .target_branch = "master", 1354 }, null, patch_author); 1355 1356 // a push onto the branch that patch tracks, so the undo tab shows the 1357 // action and the patch refresh it sets off 1358 try seedPush(io, allocator, target_repo, patch_author); 1359 try pch.refreshBranches(.server, .xit, .{}, io, allocator, target_repo, null, null); 1360 } 1361 1362 // stand in for a client push, which the fixture has no server to receive: one 1363 // transaction moves the branch, refreshes the patches tracking it and records 1364 // the action, the way receive-pack does 1365 fn seedPush(io: std.Io, allocator: std.mem.Allocator, repo: *rp.Repo(.xit, .{}), author: evt.CommitAuthor) !void { 1366 const Repo = rp.Repo(.xit, .{}); 1367 const DB = Repo.DB; 1368 const Ctx = struct { 1369 core: *Repo.Core, 1370 io: std.Io, 1371 allocator: std.mem.Allocator, 1372 author: evt.CommitAuthor, 1373 1374 pub fn run(ctx: @This(), cursor: *DB.Cursor(.read_write)) !void { 1375 const opts: rp.RepoOpts(.xit) = .{}; 1376 var moment = try DB.HashMap(.read_write).init(cursor.*); 1377 const state = Repo.State(.read_write){ .core = ctx.core, .extra = .{ .moment = &moment } }; 1378 var arena = std.heap.ArenaAllocator.init(ctx.allocator); 1379 defer arena.deinit(); 1380 const aa = arena.allocator(); 1381 1382 // a null tree keeps the parent's content, so the branch advances 1383 // without the fixture having to build one 1384 const author_line = try std.fmt.allocPrint(aa, "{s} <{s}>", .{ ctx.author.name, ctx.author.email }); 1385 const feature_old = (try rf.readRecur(.xit, opts, state.readOnly(), ctx.io, .{ .ref = .{ .kind = .head, .name = "feature" } })) orelse return error.NotFound; 1386 const feature_new = try obj.writeCommit(.xit, opts, state, ctx.io, ctx.allocator, .{ 1387 .message = "Revise the feature branch", 1388 .author = author_line, 1389 .timestamp = 820, 1390 }, null, .{ .kind = .head, .name = "feature" }); 1391 1392 // a branch the push creates has no old tip, so its range is open 1393 try bch.add(.xit, opts, state, ctx.io, .{ .name = "docs" }); 1394 const docs_new = (try rf.readRecur(.xit, opts, state.readOnly(), ctx.io, .{ .ref = .{ .kind = .head, .name = "docs" } })) orelse return error.NotFound; 1395 1396 const updates = [_]xit.net_server_receive_pack.AppliedRefUpdate{ 1397 .{ 1398 .ref_name = try aa.dupe(u8, "refs/heads/feature"), 1399 .old_oid = try aa.dupe(u8, &feature_old), 1400 .new_oid = try aa.dupe(u8, &feature_new), 1401 }, 1402 .{ 1403 .ref_name = try aa.dupe(u8, "refs/heads/docs"), 1404 .old_oid = try aa.dupe(u8, "0" ** hash.hexLen(opts.hash)), 1405 .new_oid = try aa.dupe(u8, &docs_new), 1406 }, 1407 }; 1408 1409 _ = try pch.refreshBranchesInTransaction(.server, opts, state, &moment, ctx.io, ctx.allocator, &updates, null, null); 1410 try push.writeUndo(opts, state, ctx.io, ctx.allocator, ctx.author, &updates); 1411 } 1412 }; 1413 1414 try transaction(io, repo, Ctx{ .core = &repo.core, .io = io, .allocator = allocator, .author = author }); 1415 } 1416 1417 // commit `events` onto `ref`, rooted at `parent`, as one transaction. 1418 // consume always roots a new branch at nothing, so the divergent fixtures 1419 // write their side branch here instead. nothing is consumed, so it records 1420 // xit's own commit action rather than one of haxy's event actions 1421 fn commitEventsAtRef( 1422 io: std.Io, 1423 allocator: std.mem.Allocator, 1424 repo: *rp.Repo(.xit, .{}), 1425 ref: xit.ref.Ref, 1426 events: []const evt.EventWithId, 1427 parent: [hash.hexLen(.sha1)]u8, 1428 ) !void { 1429 const Repo = rp.Repo(.xit, .{}); 1430 const DB = Repo.DB; 1431 const Ctx = struct { 1432 core: *Repo.Core, 1433 io: std.Io, 1434 allocator: std.mem.Allocator, 1435 ref: xit.ref.Ref, 1436 events: []const evt.EventWithId, 1437 parent: [hash.hexLen(.sha1)]u8, 1438 1439 pub fn run(ctx: @This(), cursor: *DB.Cursor(.read_write)) !void { 1440 const opts: rp.RepoOpts(.xit) = .{}; 1441 var moment = try DB.HashMap(.read_write).init(cursor.*); 1442 const state = Repo.State(.read_write){ .core = ctx.core, .extra = .{ .moment = &moment } }; 1443 try evt.commitEvents(.xit, opts, state, ctx.io, ctx.allocator, ctx.ref, ctx.events, .{ctx.parent}); 1444 const tip = (try xit.ref.readRecur(.xit, opts, state.readOnly(), ctx.io, .{ .ref = ctx.ref })) orelse return error.NotFound; 1445 try xit.undo.write(opts, state, std.Io.Timestamp.now(ctx.io, .real).toSeconds(), .{ 1446 .commit = try .init("seed conflicting events", tip, opts.max_read_size), 1447 }); 1448 } 1449 }; 1450 1451 try transaction(io, repo, Ctx{ 1452 .core = &repo.core, 1453 .io = io, 1454 .allocator = allocator, 1455 .ref = ref, 1456 .events = events, 1457 .parent = parent, 1458 }); 1459 } 1460 1461 // append `ctx` to the repo's history as one transaction. the fixtures write a 1462 // few states the normal paths have no way to produce 1463 fn transaction(io: std.Io, repo: *rp.Repo(.xit, .{}), ctx: anytype) !void { 1464 const DB = rp.Repo(.xit, .{}).DB; 1465 try repo.core.db_file.lock(io, .exclusive); 1466 defer repo.core.db_file.unlock(io); 1467 1468 const history = try DB.ArrayList(.read_write).init(repo.core.db.rootCursor()); 1469 try history.appendContext(.{ .slot = try history.getSlot(-1) }, ctx); 1470 } 1471 1472 // recursively copy the contents of src_dir into dest_dir 1473 fn copyDir(io: std.Io, src_dir: std.Io.Dir, dest_dir: std.Io.Dir) !void { 1474 var iter = src_dir.iterate(); 1475 while (try iter.next(io)) |entry| { 1476 switch (entry.kind) { 1477 .file => try src_dir.copyFile(entry.name, dest_dir, entry.name, io, .{}), 1478 .directory => { 1479 try dest_dir.createDirPath(io, entry.name); 1480 var dest_entry_dir = try dest_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 1481 defer dest_entry_dir.close(io); 1482 var src_entry_dir = try src_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 1483 defer src_entry_dir.close(io); 1484 try copyDir(io, src_entry_dir, dest_entry_dir); 1485 }, 1486 else => {}, 1487 } 1488 } 1489 } 1490