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618 try hx.ui.run(self.io, self.allocator, self.session, self.repo); 619 } 620 }; 621 622 try srv.run(.xit, .{}, io, allocator, cwd_path, .{ 623 .data_dir = server_path, 624 }, run_opts.err, Runnable{ .io = io, .allocator = allocator, .session = &session, .repo = &repo }); 625 } 626 } 627 628 // words cycled through to pad generated lines into prose-like content 629 const scatter_words = [_][]const u8{ 630 "lorem", "ipsum", "dolor", "sit", "amet", "consectetur", 631 "quantum", "vector", "matrix", "buffer", "kernel", "socket", 632 "falcon", "otter", "badger", "walrus", "ferret", "marmot", 633 "scatter", "gather", "encode", "decode", "render", "commit", 634 }; 635 636 // write `path` as 40 lines of mostly-stable filler. revision `c` and file 637 // index `fi` shift which lines change and the words used, so each (c, fi) 638 // yields a distinct multi-hunk diff against the previous revision. untouched 639 // lines stay byte-identical across revisions, so a bump in `c` is a scatter of 640 // small hunks rather than a full rewrite. 641 fn writeScatterFile(io: std.Io, allocator: std.mem.Allocator, repo_dir: std.Io.Dir, path: []const u8, fi: usize, c: usize) !void { 642 const file = try repo_dir.createFile(io, path, .{}); 643 defer file.close(io); 644 var writer = std.Io.Writer.Allocating.init(allocator); 645 defer writer.deinit(); 646 for (0..40) |line| { 647 const start = writer.written().len; 648 if ((line + fi + c) % 8 == 0) { 649 const tag = scatter_words[(line + fi + c * 3) % scatter_words.len]; 650 try writer.writer.print("rev {d} {s}", .{ c, tag }); 651 } 652 const target = 40 + (line * 17 + fi * 23) % 70; 653 var w = line + fi; 654 while (true) : (w += 1) { 655 const word = scatter_words[w % scatter_words.len]; 656 const len = writer.written().len - start; 657 if (len >= target or len + 1 + word.len > 120) break; 658 if (len == 0) 659 try writer.writer.print("{s}", .{word}) 660 else 661 try writer.writer.print(" {s}", .{word}); 662 } 663 try writer.writer.writeByte('\n'); 664 } 665 try file.writeStreamingAll(io, writer.written()); 666 } 667 668 // tag the current HEAD as the next sequential version: v1, v2, and so on 669 fn addNextTag(repo: *rp.Repo(.xit, .{}), io: std.Io, allocator: std.mem.Allocator, n: *usize) !void { 670 var buf: [16]u8 = undefined; 671 const name = try std.fmt.bufPrint(&buf, "v{d}", .{n.*}); 672 _ = try repo.addTag(io, allocator, .{ .name = name }); 673 n.* += 1; 674 } 675 676 // recursively copy the contents of src_dir into dest_dir 677 fn copyDir(io: std.Io, src_dir: std.Io.Dir, dest_dir: std.Io.Dir) !void { 678 var iter = src_dir.iterate(); 679 while (try iter.next(io)) |entry| { 680 switch (entry.kind) { 681 .file => try src_dir.copyFile(entry.name, dest_dir, entry.name, io, .{}), 682 .directory => { 683 try dest_dir.createDirPath(io, entry.name); 684 var dest_entry_dir = try dest_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 685 defer dest_entry_dir.close(io); 686 var src_entry_dir = try src_dir.openDir(io, entry.name, .{ .access_sub_paths = true, .iterate = true, .follow_symlinks = false }); 687 defer src_entry_dir.close(io); 688 try copyDir(io, src_entry_dir, dest_entry_dir); 689 }, 690 else => {}, 691 } 692 } 693 } 694