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461 io: std.Io, 462 allocator: std.mem.Allocator, 463 session: *ui.Session, 464 repo: *Repo, 465 466 pub fn run(self: @This()) !void { 467 // launch the TUI 468 try hx.ui.run(self.io, self.allocator, self.session, self.repo); 469 } 470 }; 471 472 try srv.run(.xit, .{}, io, allocator, cwd_path, .{ 473 .data_dir = server_path, 474 }, run_opts.err, Runnable{ .io = io, .allocator = allocator, .session = &session, .repo = &repo }); 475 } 476 } 477 478 // words cycled through to pad generated lines into prose-like content 479 const scatter_words = [_][]const u8{ 480 "lorem", "ipsum", "dolor", "sit", "amet", "consectetur", 481 "quantum", "vector", "matrix", "buffer", "kernel", "socket", 482 "falcon", "otter", "badger", "walrus", "ferret", "marmot", 483 "scatter", "gather", "encode", "decode", "render", "commit", 484 }; 485 486 // write `path` as 40 lines of mostly-stable filler. revision `c` and file 487 // index `fi` shift which lines change and the words used, so each (c, fi) 488 // yields a distinct multi-hunk diff against the previous revision. untouched 489 // lines stay byte-identical across revisions, so a bump in `c` is a scatter of 490 // small hunks rather than a full rewrite. 491 fn writeScatterFile(io: std.Io, allocator: std.mem.Allocator, repo_dir: std.Io.Dir, path: []const u8, fi: usize, c: usize) !void { 492 const file = try repo_dir.createFile(io, path, .{}); 493 defer file.close(io); 494 var writer = std.Io.Writer.Allocating.init(allocator); 495 defer writer.deinit(); 496 for (0..40) |line| { 497 const start = writer.written().len; 498 if ((line + fi + c) % 8 == 0) { 499 const tag = scatter_words[(line + fi + c * 3) % scatter_words.len]; 500 try writer.writer.print("rev {d} {s}", .{ c, tag }); 501 } 502 const target = 40 + (line * 17 + fi * 23) % 70; 503 var w = line + fi; 504 while (true) : (w += 1) { 505 const word = scatter_words[w % scatter_words.len]; 506 const len = writer.written().len - start; 507 if (len >= target or len + 1 + word.len > 120) break; 508 if (len == 0) 509 try writer.writer.print("{s}", .{word}) 510 else 511 try writer.writer.print(" {s}", .{word}); 512 } 513 try writer.writer.writeByte('\n'); 514 } 515 try file.writeStreamingAll(io, writer.written()); 516 } 517 518 // tag the current HEAD as the next sequential version: v1, v2, and so on 519 fn addNextTag(repo: *rp.Repo(.xit, .{}), io: std.Io, allocator: std.mem.Allocator, n: *usize) !void { 520 var buf: [16]u8 = undefined; 521 const name = try std.fmt.bufPrint(&buf, "v{d}", .{n.*}); 522 _ = try repo.addTag(io, allocator, .{ .name = name }); 523 n.* += 1; 524 } 525 526 // recursively copy the contents of src_dir into dest_dir 527 fn copyDir(io: std.Io, src_dir: std.Io.Dir, dest_dir: std.Io.Dir) !void { 528 var iter = src_dir.iterate(); 529 while (try iter.next(io)) |entry| { 530 switch (entry.kind) { 531 .file => try src_dir.copyFile(entry.name, dest_dir, entry.name, io, .{}), 532 .directory => { 533 try dest_dir.createDirPath(io, entry.name); 534 var dest_entry_dir = try dest_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 535 defer dest_entry_dir.close(io); 536 var src_entry_dir = try src_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 537 defer src_entry_dir.close(io); 538 try copyDir(io, src_entry_dir, dest_entry_dir); 539 }, 540 else => {}, 541 } 542 } 543 } 544