tools/src/cmd/cts/format/format.go

// Copyright 2022 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its
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//    this software without specific prior written permission.
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package format

import (
	"context"
	"flag"

	"dawn.googlesource.com/dawn/tools/src/cmd/cts/common"
	"dawn.googlesource.com/dawn/tools/src/cts/expectations"
)

func init() {
	common.Register(&cmd{})
}

type cmd struct {
	flags struct {
		expectations string // expectations file path
	}
}

func (cmd) Name() string {
	return "format"
}

func (cmd) Desc() string {
	return "formats a WebGPU expectations.txt file"
}

func (c *cmd) RegisterFlags(ctx context.Context, cfg common.Config) ([]string, error) {
	defaultExpectations := common.DefaultExpectationsPath()
	flag.StringVar(&c.flags.expectations, "expectations", defaultExpectations, "path to CTS expectations file to update")
	return nil, nil
}

func (c *cmd) Run(ctx context.Context, cfg common.Config) error {
	ex, err := expectations.Load(c.flags.expectations)
	if err != nil {
		return err
	}

	// Sort the expectations in each chunk.
	for _, chunk := range ex.Chunks {
		chunk.Expectations.Sort()
	}

	return ex.Save(c.flags.expectations)
}