Add support for JXL

.github/workflows/test.yml

@@ -10,23 +10,9 @@ jobs:
       with:
         cmake-version: '3.27.x'
 
-    - name: Wget libaom
+    - name: Update apt-get
-      uses: wei/wget@v1
-      with:
-        args: https://storage.googleapis.com/aom-releases/libaom-3.7.0.tar.gz
-    - name: Unpack libaom
       run: |
-        tar -xpf libaom-3.7.0.tar.gz && mkdir build
+        sudo apt-get update
-    - name: Configure libaom
-      working-directory: build
-      run: |
-        cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release -DENABLE_DOCS=OFF \
-        -DENABLE_EXAMPLES=OFF -DENABLE_NASM=OFF -DENABLE_TESTS=OFF -DENABLE_TOOLS=OFF -DENABLE_WERROR=OFF \
-        -DAOM_TARGET_CPU=generic ../libaom-3.7.0
-    - name: Install libaom
-      working-directory: build
-      run: |
-        make -j3 && sudo make install
 
     - name: Wget libheif
       uses: wei/wget@v1
@@ -35,16 +21,72 @@ jobs:
     - name: Unpack libheif
       run: |
         tar -xpf libheif-1.15.2.tar.gz
+    - name: Install libheif dependencies
+      run: |
+        sudo apt-get install libaom-dev -y
     - name: Configure libheif
       working-directory: libheif-1.15.2
       run: |
         ./configure --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static --disable-libde265 \
-        --disable-dav1d --disable-go --enable-aom --disable-gdk-pixbuf --disable-rav1e --disable-tests --disable-x265
+        --disable-dav1d --disable-go --enable-aom --disable-gdk-pixbuf --disable-rav1e --disable-tests --disable-x265 --disable-examples
     - name: Install libheif
       working-directory: libheif-1.15.2
       run: |
         make -j3 && sudo make install
 
+    - name: Wget lcms2
+      uses: wei/wget@v1
+      with:
+        args: https://github.com/mm2/Little-CMS/releases/download/lcms2.15/lcms2-2.15.tar.gz
+    - name: Unpack lcms2
+      run: |
+        tar -xpf lcms2-2.15.tar.gz
+    - name: Configure lcms2
+      working-directory: lcms2-2.15
+      run: |
+        ./configure --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
+    - name: Install lcms2
+      working-directory: lcms2-2.15
+      run: |
+        make -j3 && sudo make install
+
+    - name: Wget highway
+      uses: wei/wget@v1
+      with:
+        args: -O highway-1.0.5.tar.gz https://github.com/google/highway/archive/refs/tags/1.0.5.tar.gz
+    - name: Unpack highway
+      run: |
+        tar -xpf highway-1.0.5.tar.gz && mkdir -p highway-1.0.5/build
+    - name: Configure highway
+      working-directory: highway-1.0.5/build
+      run: |
+        cmake -DCMAKE_INSTALL_PREFIX=/usr -DHWY_ENABLE_TESTS=OFF -DHWY_ENABLE_EXAMPLES=OFF -DHWY_WARNINGS_ARE_ERRORS=OFF ../
+    - name: Install highway
+      working-directory: highway-1.0.5/build
+      run: |
+        make -j3 && sudo make install
+
+    - name: Wget libjxl
+      uses: wei/wget@v1
+      with:
+        args: -O libjxl-0.8.2.tar.gz https://github.com/libjxl/libjxl/archive/refs/tags/v0.8.2.tar.gz
+    - name: Unpack libjxl
+      run: |
+        tar -xpf libjxl-0.8.2.tar.gz && mkdir -p libjxl-0.8.2/build
+    - name: Configure libjxl
+      working-directory: libjxl-0.8.2/build
+      run: |
+        cmake -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DJPEGXL_ENABLE_BENCHMARK=OFF \
+        -DJPEGXL_ENABLE_COVERAGE=OFF -DJPEGXL_ENABLE_FUZZERS=OFF -DJPEGXL_ENABLE_SJPEG=OFF -DJPEGXL_WARNINGS_AS_ERRORS=OFF \
+        -DJPEGXL_ENABLE_SKCMS=OFF -DJPEGXL_ENABLE_VIEWERS=OFF -DJPEGXL_ENABLE_PLUGINS=OFF -DJPEGXL_ENABLE_DOXYGEN=OFF \
+        -DJPEGXL_ENABLE_MANPAGES=OFF -DJPEGXL_ENABLE_JNI=OFF -DJPEGXL_ENABLE_JPEGLI_LIBJPEG=OFF -DJPEGXL_ENABLE_TCMALLOC=OFF \
+        -DJPEGXL_ENABLE_EXAMPLES=OFF -DJPEGXL_ENABLE_TOOLS=OFF -DJPEGXL_ENABLE_OPENEXR=OFF -DBUILD_TESTING=OFF \
+        -DJXL_HWY_DISABLED_TARGETS_FORCED=ON -DJPEGXL_FORCE_SYSTEM_BROTLI=ON -DJPEGXL_FORCE_SYSTEM_HWY=ON ../
+    - name: Install libjxl
+      working-directory: libjxl-0.8.2/build
+      run: |
+        make -j3 && sudo make install
+
     - name: Wget ImageMagick
       uses: wei/wget@v1
       with:
@@ -59,20 +101,20 @@ jobs:
         --without-frozenpaths --without-utilities --disable-hdri --disable-opencl --without-modules --without-magick-plus-plus --without-perl \
         --without-bzlib --without-x --without-zip --with-zlib --without-dps --without-djvu --without-autotrace --without-fftw \
         --without-fpx --without-fontconfig --without-freetype --without-gslib --without-gvc --without-jbig --without-openjp2 \
-        --without-jxl --without-lcms --without-lqr --without-lzma --without-openexr --without-pango --without-raw \
+        --without-lcms --without-lqr --without-lzma --without-openexr --without-pango --without-raw --without-rsvg --without-wmf \
-        --without-rsvg --without-wmf --without-xml --disable-openmp --with-jpeg --with-heic --with-png --with-tiff --with-webp
+        --without-xml --disable-openmp --with-jpeg --with-heic --with-jxl --with-png --with-tiff --with-webp
     - name: Install ImageMagick
       working-directory: ImageMagick-7.1.1-15
       run: |
         make -j3 && sudo make install
 
     - name: Install Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v3
       with:
         go-version: 1.21
 
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Test
       run: go test

README.md

@@ -10,7 +10,7 @@ It can convert comics to different formats to fit your various devices.
 
 * reads CBR (RAR), CBZ (ZIP), CB7 (7Z), CBT (TAR), PDF, XPS, EPUB, MOBI and plain directory
 * saves processed comics in ZIP archive format or TAR
-* images can be converted to JPEG, PNG, TIFF, WEBP, AVIF, or 4-Bit BMP (16 colors) file format
+* images can be converted to JPEG, PNG, TIFF, WEBP, AVIF, JXL, or 4-Bit BMP (16 colors) file format
 * rotate, adjust brightness/contrast, adjust levels (Photoshop-like) or grayscale images
 * resize filters (NearestNeighbor, Box, Linear, MitchellNetravali, CatmullRom, Gaussian, Lanczos)
 * export covers from comics
@@ -58,13 +58,11 @@ This is what it looks like in the PCManFM file manager:
         --fit
             Best fit for required width and height (default "false")
         --format
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif (default "jpeg")
+            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
         --archive
     	    Archive format, valid values are zip, tar (default "zip")
         --quality
             Image quality (default "75")
-        --lossless
-            Lossless compression (avif) (default "false")
         --filter
             0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos (default "2")
         --no-cover
@@ -114,7 +112,7 @@ This is what it looks like in the PCManFM file manager:
         --fit
             Best fit for required width and height (default "false")
         --format
-            Image format, valid values are jpeg, png, tiff, bmp, webp, avif (default "jpeg")
+            Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl (default "jpeg")
         --quality
             Image quality (default "75")
         --filter
@@ -198,6 +196,6 @@ This table maps quality settings for JPEG to the respective AVIF and WEBP qualit
 
 ### Compile
 
-Install ImageMagick7, MuPDF and libheif (with libaom) libraries and headers and then install to GOBIN:
+Install ImageMagick7 (with libheif/libjxl support) and MuPDF libraries and headers and then install to GOBIN:
 
 `go install -tags extlib github.com/gen2brain/cbconvert/cmd/cbconvert@latest`

cbconvert.go

@@ -27,7 +27,6 @@ import (
 	"image/png"
 
 	"github.com/chai2010/webp"
-	"github.com/strukturag/libheif/go/heif"
 	"golang.org/x/image/tiff"
 
 	"github.com/disintegration/imaging"
@@ -69,14 +68,12 @@ var filters = map[int]imaging.ResampleFilter{
 
 // Options type.
 type Options struct {
-	// Image format, valid values are jpeg, png, tiff, bmp, webp, avif
+	// Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl
 	Format string
 	// Archive format, valid values are zip, tar
 	Archive string
 	// JPEG image quality
 	Quality int
-	// Lossless compression (avif)
-	Lossless bool
 	// Image width
 	Width int
 	// Image height
@@ -179,6 +176,20 @@ type Image struct {
 	SizeHuman string
 }
 
+// NewOptions returns default options.
+func NewOptions() Options {
+	o := Options{}
+	o.Format = "jpeg"
+	o.Archive = "zip"
+	o.Quality = 75
+	o.Filter = 2
+	o.LevelsGamma = 1.0
+	o.LevelsInMax = 255
+	o.LevelsOutMax = 255
+
+	return o
+}
+
 // New returns new convertor.
 func New(o Options) *Convertor {
 	c := &Convertor{}
@@ -479,12 +490,11 @@ func (c *Convertor) imageConvert(ctx context.Context, img image.Image, index int
 	}
 
 	switch c.Opts.Format {
-	case "jpeg", "png", "tiff", "webp", "avif":
+	case "jpeg", "png", "tiff", "webp":
 		if err := c.imageEncode(img, fileName); err != nil {
 			return fmt.Errorf("imageConvert: %w", err)
 		}
-	case "bmp":
+	case "bmp", "avif", "jxl":
-		// convert image to 4-Bit BMP (16 colors)
 		if err := c.imEncode(img, fileName); err != nil {
 			return fmt.Errorf("imageConvert: %w", err)
 		}
@@ -643,18 +653,6 @@ func (c *Convertor) imageEncode(img image.Image, fileName string) error {
 		err = jpeg.Encode(file, img, &jpeg.Options{Quality: c.Opts.Quality})
 	case ".webp":
 		err = webp.Encode(file, img, &webp.Options{Quality: float32(c.Opts.Quality)})
-	case ".avif":
-		img = imageToRGBA(img)
-		lossLess := heif.LosslessModeDisabled
-		if c.Opts.Lossless {
-			lossLess = heif.LosslessModeEnabled
-		}
-
-		ctx, e := heif.EncodeFromImage(img, heif.CompressionAV1, c.Opts.Quality, lossLess, 0)
-		if e != nil {
-			return fmt.Errorf("imageEncode: %w", e)
-		}
-		err = ctx.WriteToFile(fileName)
 	}
 
 	if err != nil {
@@ -680,16 +678,10 @@ func (c *Convertor) imEncode(i image.Image, fileName string) error {
 		if err := mw.SetImageFormat("PNG"); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
-		if err := mw.WriteImage(fileName); err != nil {
-			return fmt.Errorf("imEncode: %w", err)
-		}
 	case ".tif", ".tiff":
 		if err := mw.SetImageFormat("TIFF"); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
-		if err := mw.WriteImage(fileName); err != nil {
-			return fmt.Errorf("imEncode: %w", err)
-		}
 	case ".bmp":
 		pw := imagick.NewPixelWand()
 		pw.SetColor("black")
@@ -713,10 +705,7 @@ func (c *Convertor) imEncode(i image.Image, fileName string) error {
 		if err := mw.SetImageCompression(imagick.COMPRESSION_NO); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
-		if err := mw.QuantizeImage(16, mw.GetImageColorspace(), 1, imagick.DITHER_METHOD_FLOYD_STEINBERG, true); err != nil {
+		if err := mw.QuantizeImage(16, mw.GetImageColorspace(), 1, imagick.DITHER_METHOD_NO, true); err != nil {
-			return fmt.Errorf("imEncode: %w", err)
-		}
-		if err := mw.WriteImage(fileName); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
 	case ".jpg", ".jpeg":
@@ -726,9 +715,6 @@ func (c *Convertor) imEncode(i image.Image, fileName string) error {
 		if err := mw.SetImageCompressionQuality(uint(c.Opts.Quality)); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
-		if err := mw.WriteImage(fileName); err != nil {
-			return fmt.Errorf("imEncode: %w", err)
-		}
 	case ".avif":
 		if err := mw.SetImageFormat("AVIF"); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
@@ -736,9 +722,17 @@ func (c *Convertor) imEncode(i image.Image, fileName string) error {
 		if err := mw.SetImageCompressionQuality(uint(c.Opts.Quality)); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
-		if err := mw.WriteImage(fileName); err != nil {
+	case ".jxl":
+		if err := mw.SetImageFormat("JXL"); err != nil {
 			return fmt.Errorf("imEncode: %w", err)
 		}
+		if err := mw.SetImageCompressionQuality(uint(c.Opts.Quality)); err != nil {
+			return fmt.Errorf("imEncode: %w", err)
+		}
+	}
+
+	if err := mw.WriteImage(fileName); err != nil {
+		return fmt.Errorf("imEncode: %w", err)
 	}
 
 	return nil
@@ -1409,7 +1403,7 @@ func (c *Convertor) isDocument(f string) bool {
 
 // isImage checks if file is image.
 func (c *Convertor) isImage(f string) bool {
-	var types = []string{".jpg", ".jpeg", ".png", ".gif", ".bmp", ".tiff", ".tif", ".webp", ".avif"}
+	var types = []string{".jpg", ".jpeg", ".png", ".gif", ".bmp", ".tiff", ".tif", ".webp", ".avif", ".jxl"}
 	for _, t := range types {
 		if strings.ToLower(filepath.Ext(f)) == t {
 			return true
@@ -1530,7 +1524,7 @@ func (c *Convertor) Files(args []string) ([]File, error) {
 
 			count := 0
 			for _, fn := range fs {
-				if !fn.IsDir() {
+				if !fn.IsDir() && c.isImage(fn.Name()) {
 					count++
 				}
 			}
@@ -1632,11 +1626,11 @@ func (c *Convertor) Cover(fileName string, fileInfo os.FileInfo) error {
 	}
 
 	switch c.Opts.Format {
-	case "jpeg", "png", "tiff", "webp", "avif":
+	case "jpeg", "png", "tiff", "webp":
 		if err := c.imageEncode(cover, fName); err != nil {
 			return fmt.Errorf("%s: %w", fileName, err)
 		}
-	case "bmp":
+	case "bmp", "avif", "jxl":
 		if err := c.imEncode(cover, fName); err != nil {
 			return fmt.Errorf("%s: %w", fileName, err)
 		}
@@ -1791,11 +1785,11 @@ func (c *Convertor) Preview(fileName string, fileInfo os.FileInfo, width, height
 	tmpName := c.tempName("cbc", "."+c.Opts.Format)
 
 	switch c.Opts.Format {
-	case "jpeg", "png", "tiff", "webp", "avif":
+	case "jpeg", "png", "tiff", "webp":
 		if err := c.imageEncode(i, tmpName); err != nil {
 			return img, fmt.Errorf("%s: %w", fileName, err)
 		}
-	case "bmp":
+	case "bmp", "avif", "jxl":
 		if err := c.imEncode(i, tmpName); err != nil {
 			return img, fmt.Errorf("%s: %w", fileName, err)
 		}

cbconvert_test.go

@@ -13,11 +13,8 @@ func TestConvert(t *testing.T) {
 		t.Error(err)
 	}
 
-	opts := Options{}
+	opts := NewOptions()
 	opts.OutDir = tmpDir
-	opts.Archive = "zip"
-	opts.Quality = 75
-	opts.Filter = 2
 
 	conv := New(opts)
 
@@ -29,7 +26,7 @@ func TestConvert(t *testing.T) {
 		t.Error(err)
 	}
 
-	for _, format := range []string{"jpeg", "png", "tiff", "bmp", "webp", "avif"} {
+	for _, format := range []string{"jpeg", "png", "tiff", "bmp", "webp", "avif", "jxl"} {
 		conv.Opts.Format = format
 
 		for _, file := range files {
@@ -54,11 +51,8 @@ func TestCover(t *testing.T) {
 		t.Error(err)
 	}
 
-	opts := Options{}
+	opts := NewOptions()
 	opts.OutDir = tmpDir
-	opts.Quality = 75
-	opts.Filter = 2
-	opts.Format = "jpeg"
 
 	conv := New(opts)
 
@@ -89,9 +83,8 @@ func TestThumbnail(t *testing.T) {
 		t.Error(err)
 	}
 
-	opts := Options{}
+	opts := NewOptions()
 	opts.OutDir = tmpDir
-	opts.Filter = 2
 
 	conv := New(opts)
 

cmd/cbconvert/main.go

@@ -169,10 +169,9 @@ func parseFlags() (cbconvert.Options, []string) {
 	convert.IntVar(&opts.Width, "width", 0, "Image width")
 	convert.IntVar(&opts.Height, "height", 0, "Image height")
 	convert.BoolVar(&opts.Fit, "fit", false, "Best fit for required width and height")
-	convert.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif")
+	convert.StringVar(&opts.Format, "format", "jpeg", "Image format, valid values are jpeg, png, tiff, bmp, webp, avif, jxl")
 	convert.StringVar(&opts.Archive, "archive", "zip", "Archive format, valid values are zip, tar")
 	convert.IntVar(&opts.Quality, "quality", 75, "Image quality")
-	convert.BoolVar(&opts.Lossless, "lossless", false, "Lossless compression (avif)")
 	convert.IntVar(&opts.Filter, "filter", 2, "0=NearestNeighbor, 1=Box, 2=Linear, 3=MitchellNetravali, 4=CatmullRom, 6=Gaussian, 7=Lanczos")
 	convert.BoolVar(&opts.NoCover, "no-cover", false, "Do not convert the cover image")
 	convert.BoolVar(&opts.NoRGB, "no-rgb", false, "Do not convert images that have RGB colorspace")
@@ -255,7 +254,7 @@ func parseFlags() (cbconvert.Options, []string) {
 	}
 
 	if len(os.Args) < 2 {
-		convert.Usage()
+		flag.Usage()
 		_, _ = fmt.Fprintf(os.Stderr, "no command\n")
 		os.Exit(1)
 	}

go.mod

@@ -9,8 +9,7 @@ require (
 	github.com/fvbommel/sortorder v1.1.0
 	github.com/gen2brain/go-fitz v1.23.1
 	github.com/gen2brain/go-unarr v0.1.7
-	github.com/strukturag/libheif v1.15.2
+	golang.org/x/image v0.12.0
-	golang.org/x/image v0.11.0
 	golang.org/x/sync v0.3.0
 	gopkg.in/gographics/imagick.v3 v3.4.3
 )

go.sum

@@ -10,14 +10,12 @@ github.com/gen2brain/go-fitz v1.23.1 h1:x69/szWZXpI3jZ57mMqCg7WqqvtYnQG0lXts3L6M
 github.com/gen2brain/go-fitz v1.23.1/go.mod h1:HU04vc+RisUh/kvEd2pB0LAxmK1oyXdN4ftyshUr9rQ=
 github.com/gen2brain/go-unarr v0.1.7 h1:mEE7bPShJIsmAX67t6BW2ibpEUO7j5WK152KgNM9NbQ=
 github.com/gen2brain/go-unarr v0.1.7/go.mod h1:MK9a3hddpaIxjEtrE1f/LA5yJ7gA34cS7Oyr325sY9s=
-github.com/strukturag/libheif v1.15.2 h1:pgdcpDHqtLKRXL9ETSTeht0CsJODB3BojpTsb3S/3Wg=
-github.com/strukturag/libheif v1.15.2/go.mod h1:E/PNRlmVtrtj9j2AvBZlrO4dsBDu6KfwDZn7X1Ce8Ks=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.11.0 h1:ds2RoQvBvYTiJkwpSFDwCcDFNX7DqjL2WsUgTNk0Ooo=
+golang.org/x/image v0.12.0 h1:w13vZbU4o5rKOFFR8y7M+c4A5jXDC0uXTdHYRP8X2DQ=
-golang.org/x/image v0.11.0/go.mod h1:bglhjqbqVuEb9e9+eNR45Jfu7D+T4Qan+NhQk8Ck2P8=
+golang.org/x/image v0.12.0/go.mod h1:Lu90jvHG7GfemOIcldsh9A2hS01ocl6oNO7ype5mEnk=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -42,7 +40,7 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=