Add DNG, CR2, NEF, and ARW RAW format support

gen/main.go

@@ -60,11 +60,11 @@ func main() {
 		cmd.Stderr = &errorBuf
 
 		if err := cmd.Run(); err != nil {
-			if strings.Contains(errorBuf.String(), "identify:") {
-				// We have some corrupt images.
-				return nil
-			}
-			return err
+			// identify may fail for corrupt images (prefix "identify:") or
+			// unsupported formats (e.g. RAW files without a darktable/libraw delegate).
+			// Non-fatal: readGoldenInfo already handles missing .config.json via os.IsNotExist.
+			log.Printf("warning: identify failed for %s: %s (skipping config.json)", path, errorBuf.String())
+			return nil
 		}
 
 		imageConfigOutFilename := filepath.Join(outDir, basePath+".config.json")

gen/testdata_exiftool/images/sample.arw.config.json

@@ -0,0 +1 @@
+{"width": 3880, "height": 2600}

gen/testdata_exiftool/images/sample.arw.json

@@ -0,0 +1,203 @@
+[{
+  "SourceFile": "testdata/images/sample.arw",
+  "ExifTool": {
+    "ExifToolVersion": 13.50
+  },
+  "File": {
+    "FileName": "sample.arw",
+    "Directory": "testdata/images",
+    "FileSize": 9601024,
+    "FilePermissions": 100644,
+    "FileType": "ARW",
+    "FileTypeExtension": "ARW",
+    "MIMEType": "image/x-sony-arw",
+    "ExifByteOrder": "II"
+  },
+  "EXIF": {
+    "ImageDescription": "SONY DSC",
+    "Make": "SONY",
+    "Model": "DSLR-A330",
+    "Software": "DSLR-A330 v1.10",
+    "ModifyDate": "2009:11:13 13:33:25",
+    "SubfileType": 0,
+    "ImageWidth": 3880,
+    "ImageHeight": 2600,
+    "BitsPerSample": 12,
+    "Compression": 32767,
+    "PhotometricInterpretation": 32803,
+    "Orientation": 1,
+    "SamplesPerPixel": 1,
+    "PlanarConfiguration": 1,
+    "XResolution": 0.01388888889,
+    "YResolution": 0.01388888889,
+    "ResolutionUnit": 3,
+    "CFARepeatPatternDim": "2 2",
+    "CFAPattern2": "0 1 1 2",
+    "SonyRawFileType": 3,
+    "SonyToneCurve": "8000 10400 12900 14100",
+    "StripOffsets": 688128,
+    "RowsPerStrip": 2600,
+    "StripByteCounts": 8883620,
+    "PreviewImageStart": 155683,
+    "PreviewImageLength": 530370,
+    "ExposureTime": 0.00625,
+    "FNumber": 4.5,
+    "ExposureProgram": 2,
+    "ISO": 100,
+    "ExifVersion": "0221",
+    "DateTimeOriginal": "2009:11:13 13:33:25",
+    "CreateDate": "2009:11:13 13:33:25",
+    "ComponentsConfiguration": "1 2 3 0",
+    "CompressedBitsPerPixel": 8,
+    "BrightnessValue": 6.75,
+    "ExposureCompensation": 0,
+    "MaxApertureValue": 4,
+    "MeteringMode": 2,
+    "LightSource": 0,
+    "Flash": 16,
+    "FocalLength": 100,
+    "UserComment": "",
+    "FlashpixVersion": "0100",
+    "ColorSpace": 1,
+    "ExifImageWidth": 3880,
+    "ExifImageHeight": 2600,
+    "InteropIndex": "R98",
+    "InteropVersion": "0100",
+    "FileSource": 3,
+    "SceneType": 1,
+    "CustomRendered": 0,
+    "ExposureMode": 2,
+    "WhiteBalance": 0,
+    "FocalLengthIn35mmFormat": 150,
+    "SceneCaptureType": 0,
+    "Contrast": 0,
+    "Saturation": 0,
+    "Sharpness": 0,
+    "ThumbnailOffset": 32770,
+    "ThumbnailLength": 3598
+  },
+  "MakerNotes": {
+    "AFPointSelected": 1,
+    "FocusModeSetting": 1,
+    "AFPoint": 4,
+    "AFStatusActiveSensor": 759,
+    "AFStatusTop-right": -32768,
+    "AFStatusBottom-right": -32768,
+    "AFStatusBottom": 948,
+    "AFStatusMiddleHorizontal": 1136,
+    "AFStatusCenterVertical": 759,
+    "AFStatusTop": 1387,
+    "AFStatusTop-left": 1410,
+    "AFStatusBottom-left": -32768,
+    "AFStatusLeft": -32768,
+    "AFStatusCenterHorizontal": -32768,
+    "AFStatusRight": 1136,
+    "DriveMode2": 7,
+    "Rotation": 0,
+    "ImageStabilizationSetting": 1,
+    "DynamicRangeOptimizerMode": 0,
+    "BracketShotNumber": 0,
+    "WhiteBalanceBracketing": 0,
+    "BracketShotNumber2": 0,
+    "DynamicRangeOptimizerBracket": 0,
+    "ExposureBracketShotNumber": 0,
+    "ExposureProgram": 2,
+    "ISOSetting": 100,
+    "ISO": 100,
+    "DynamicRangeOptimizerLevel": 1,
+    "ShutterCount": 78,
+    "FocusPosition": 128,
+    "TiffMeteringImage": "(Binary data 7404 bytes, use -b option to extract)",
+    "Quality": 6,
+    "FlashExposureComp": 0,
+    "Teleconverter": 0,
+    "WhiteBalanceFineTune": 0,
+    "ExposureTime": 0.0055242717280199,
+    "FNumber": 4.36203093066103,
+    "HighSpeedSync": 0,
+    "ExposureCompensationSet": 0,
+    "WhiteBalanceSetting": 2,
+    "ColorTemperatureSet": 5500,
+    "ColorCompensationFilterSet": 0,
+    "CustomWB_RGBLevels": "0 0 0",
+    "ColorTemperatureCustom": 5500,
+    "ColorCompensationFilterCustom": 0,
+    "AFAreaMode": 2,
+    "AFPointSetting": 1,
+    "FlashExposureCompSet": 0,
+    "MeteringMode": 2,
+    "FlashControl": 0,
+    "ImageStyle": 1,
+    "ShutterSpeedSetting": 0.324209888662752,
+    "ApertureSetting": 3.66801617281868,
+    "FlashAction": 0,
+    "AELock": 1,
+    "FlashAction2": 5,
+    "FocusMode": 1,
+    "FocusStatus": 1,
+    "SonyImageSize": 1,
+    "AspectRatio": 1,
+    "ExposureLevelIncrements": 33,
+    "DriveMode": 7,
+    "FlashMode": 5,
+    "ColorSpace": 6,
+    "WhiteBalance": 0,
+    "BatteryLevel": 85,
+    "Rating": 0,
+    "LongExposureNoiseReduction": 4294901760,
+    "HighISONoiseReduction": 0,
+    "FileFormat": "3 1 0 0",
+    "SonyModelID": 264,
+    "CreativeStyle": "Standard",
+    "ColorTemperature": 0,
+    "ColorCompensationFilter": 0,
+    "SceneMode": 0,
+    "ZoneMatching": 0,
+    "DynamicRangeOptimizer": 0,
+    "ImageStabilization": 1,
+    "LensType": 56,
+    "ColorMode": 0,
+    "LensSpec": "01 55 200 4 5.6 02",
+    "FullImageSize": "3872 2592",
+    "PreviewImageSize": "1616 1080",
+    "SR2SubIFDOffset": 36496,
+    "SR2SubIFDLength": 30960,
+    "SR2SubIFDKey": 1144201745,
+    "FirmwareID": 21870002,
+    "SensorHeight": 2608,
+    "SensorWidth": 3880,
+    "ImageHeight": 2592,
+    "ImageWidth": 3872,
+    "RawDepth": 16,
+    "BitDepth": 12,
+    "StorageMethod": 82,
+    "BayerPattern": 0,
+    "WBScale": "2 2 2 2",
+    "Saturation": 0,
+    "Contrast": 0,
+    "Sharpness": 0,
+    "WBMode": 0,
+    "ProgramMode": 128,
+    "BWFilter": 0,
+    "Hue": -1,
+    "BlackLevel": "0 0 0 0",
+    "WB_RGGBLevelsAuto": "1800 1024 1024 1584",
+    "WB_RGGBLevels": "1800 1024 1024 1584",
+    "ColorMatrix": "1208 -168 -16 -40 1168 -104 -8 16 1016",
+    "WB_RGBLevelsDaylight": "1740 1024 1660",
+    "WB_RGBLevelsCloudy": "1880 1024 1492",
+    "WB_RGBLevelsTungsten": "1032 1024 3288",
+    "WB_RGBLevelsFlash": "1924 1024 1476",
+    "WB_RGBLevels4500K": "1560 1024 1920",
+    "WB_RGBLevelsShade": "2056 1024 1292",
+    "WB_RGBLevelsFluorescent": "1604 1024 2372",
+    "WB_RGBLevelsFluorescentP1": "1812 1024 1976",
+    "WB_RGBLevelsFluorescentP2": "2208 1024 1704",
+    "WB_RGBLevelsFluorescentM1": "1228 1024 3112",
+    "WB_RGBLevels8500K": "2160 1024 1200",
+    "WB_RGBLevels6000K": "1856 1024 1500",
+    "WB_RGBLevels3200K": "1172 1024 2804",
+    "WB_RGBLevels2500K": "872 1024 3996",
+    "WhiteLevel": 15360
+  }
+}]

gen/testdata_exiftool/images/sample.cr2.config.json

@@ -0,0 +1 @@
+{"width": 3648, "height": 2736}