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@@ -267,10 +267,33 @@ pub fn build(b: *Build) !void {
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b.default_step = ziglings_step;
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var prev_step = &header_step.step;
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- // read the file to find the latest complete, use that in the for loop
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- // for (exercises[(s - 1)..]) |ex| {
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- for (exercises) |ex| {
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- // print("here {s}\n", .{ex.main_file});
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+
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+ var starting_exercise: u32 = 0;
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+
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+ if (std.fs.cwd().openFile(".progress.txt", .{})) |progress_file| {
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+ defer progress_file.close();
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+
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+ const progress_file_size = try progress_file.getEndPos();
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+
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+ var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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+ defer _ = gpa.deinit();
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+ const allocator = gpa.allocator();
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+ const contents = try progress_file.readToEndAlloc(allocator, progress_file_size);
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+ defer allocator.free(contents);
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+
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+ starting_exercise = try std.fmt.parseInt(u32, contents, 10);
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+ } else |err| {
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+ switch (err) {
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+ // This is fine, may be the first time tests are run or progress have been reset
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+ std.fs.File.OpenError.FileNotFound => {},
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+ else => {
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+ print("Unable to open progress file, Error: {}\n", .{err});
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+ return err;
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+ },
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+ }
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+ }
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+
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+ for (exercises[starting_exercise..]) |ex| {
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const verify_stepn = ZiglingStep.create(b, ex, work_path, .normal);
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verify_stepn.step.dependOn(prev_step);
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