unioffice/internal/testutils/testutils.go

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package testutils ;import (_ea "crypto/md5";_ag "encoding/hex";_c "encoding/json";_bf "errors";_ad "fmt";_fd "github.com/stretchr/testify/require";_de "golang.org/x/image/font";_agc "golang.org/x/image/font/opentype";_fe "golang.org/x/image/math/fixed";_gc "image";_a "image/color";_ca "image/draw";_ab "image/png";_gg "io";_e "io/ioutil";_fg "math";_ee "os";_f "os/exec";_ed "path/filepath";_d "strings";_age "sync";_b "testing";_ge "time";);func (_dac *ReferenceMap )Keys ()(_cd []string ){_cd =make ([]string ,len (_dac ._bff ));var _gf int ;for _ff :=range _dac ._bff {_cd [_gf ]=_ff ;_gf ++;};return _cd ;};func CopyFile (src ,dst string )error {_agd ,_aee :=_ee .Open (src );if _aee !=nil {return _aee ;};defer _agd .Close ();_gfe ,_aee :=_ee .Create (dst );if _aee !=nil {return _aee ;};defer _gfe .Close ();_ ,_aee =_gg .Copy (_gfe ,_agd );return _aee ;};func (_dc *ReferenceMap )Len ()int {return len (_dc ._bff )};func (_be *ReferenceMap )UnmarshalJSON (data []byte )error {return _c .Unmarshal (data ,&_be ._bff )};func CompareImages (img1 ,img2 _gc .Image )(bool ,error ){_bb :=img1 .Bounds ();_edd :=0;for _cde :=0;_cde < _bb .Size ().X ;_cde ++{for _dab :=0;_dab < _bb .Size ().Y ;_dab ++{_gcg ,_gdc ,_aaa ,_ :=img1 .At (_cde ,_dab ).RGBA ();_fb ,_ebc ,_gbd ,_ :=img2 .At (_cde ,_dab ).RGBA ();if _gcg !=_fb ||_gdc !=_ebc ||_aaa !=_gbd {_edd ++;};};};_fcc :=float64 (_edd )/float64 (_bb .Dx ()*_bb .Dy ());if _fcc > 0.0001{_ad .Printf ("\u0064\u0069\u0066f \u0066\u0072\u0061\u0063\u0074\u0069\u006f\u006e\u003a\u0020\u0025\u0076\u0020\u0028\u0025\u0064\u0029\u000a",_fcc ,_edd );return false ,nil ;};return true ,nil ;};func RunRenderTest (t *_b .T ,pdfPath ,outputDir ,baselineRenderPath string ,saveBaseline bool ,currentHashMap *ReferenceMap ,refFile *ReferenceFile ){_eeec :=_d .TrimSuffix (_ed .Base (pdfPath ),_ed .Ext (pdfPath ));t .Run ("\u0072\u0065\u006e\u0064\u0065\u0072",func (_fcff *_b .T ){_ebe :=_ed .Join (outputDir ,_eeec );_beb :=_ebe +"\u002d%\u0064\u002e\u0070\u006e\u0067";if _bbf :=RenderPDFToPNGs (pdfPath ,0,_beb );_bbf !=nil {_fcff .Skip (_bbf );};_fdb :=_eeec +"\u002em\u0073\u0077\u006f\u0072\u0064";_fda :=_ed .Join (outputDir ,_fdb );_dfa :=_fda +"\u002d%\u0064\u002e\u0070\u006e\u0067";_dedbf :=false ;if saveBaseline {_aec :=_ed .Dir (pdfPath );_fdf :=_ed .Join (_aec ,_fdb +"\u002e\u0070\u0064\u0066");if _ ,_ccbc :=_ee .Stat (_fdf );_ccbc ==nil {_fcff .Logf ("\u0052\u0065\u006e\u0064er\u0020\u004d\u0053\u0020\u0057\u006f\u0072\u0064\u0020\u0050\u0044\u0046\u003a\u0020%\u0076",_fdf );if _aac :=RenderPDFToPNGs (_fdf ,0,_dfa );_aac !=nil {_fcff .Skip (_aac );};_dedbf =true ;};};for _edab :=1;true ;_edab ++{_bdb :=_ad .Sprintf ("\u0025s\u002d\u0025\u0064\u002e\u0070\u006eg",_ebe ,_edab );_eeb :=_ed .Join (baselineRenderPath ,_ad .Sprintf ("\u0025\u0073\u002d\u0025\u0064\u005f\u0065\u0078\u0070\u002e\u0070\u006e\u0067",_eeec ,_edab ));if _ ,_abf :=_ee .Stat (_bdb );_abf !=nil {break ;};_fcff .Logf ("\u0025\u0073",_eeb );if saveBaseline {_fcff .Logf ("\u0043\u006fp\u0079\u0069\u006eg\u0020\u0025\u0073\u0020\u002d\u003e\u0020\u0025\u0073",_bdb ,_eeb );_bbfc :=CopyFile (_bdb ,_eeb );if _bbfc !=nil {_fcff .Fatalf ("\u0045\u0052\u0052OR\u0020\u0063\u006f\u0070\u0079\u0069\u006e\u0067\u0020\u0074\u006f\u0020\u0025\u0073\u003a\u0020\u0025\u0076",_eeb ,_bbfc );};if _dedbf {_fgf :=_ad .Sprintf ("\u0025s\u002d\u0025\u0064\u002e\u0070\u006eg",_fda ,_edab );_bccg :=_ed .Join (baselineRenderPath ,_ad .Sprintf ("\u0025\u0073\u002d\u0025\u0064\u005f\u0065\u0078\u0070\u002e\u0070\u006e\u0067",_fdb ,_edab ));_fcff .Logf ("\u0043\u006f\u0070\u0079\u0069\u006e\u0067\u0020\u004d\u0053\u0020\u0057\u006f\u0072\u0064 \u0072e\u0073\u0075\u006c\u0074\u0073\u0020\u0025\u0073\u0020\u002d\u003e\u0020\u0025\u0073",_fgf ,_bccg );_afe :=CopyFile (_fgf ,_bccg );if _afe !=nil {_fcff .Logf ("\u0045\u0052RO\u0052\u0020\u0063\u006f\u0070\u0079\u0069\u006e\u0067\u0020\u0074\u006f\u0020\u0025\u0073\u003a\u0020\u0025\u0076\u002c \u0068\u0061\u0076\u0069n\u0067\u0020\u0064\u0069ff\u0065\u0072e\u006et\u0020\u0070\u0061\u0067\u0065\u0020s\u0069\u007a\u0065 \u0072\u0065s\u0075\u006c\u0074\u0073\u002c\u0020\u0075\u0073\u0065\u0020\u0070\u0072\u0065\u0076i\u006f\u0075\u0073\u0020\u0070\u0061\u0067\u0065",_bccg ,_afe );_fgf =_ad .Sprintf ("\u0025s\u002d\u0025\u0064\u002e\u0070\u006eg",_fda ,_edab -1);_bccg =_ed .Join (baselineRenderPath ,_ad .Sprintf ("\u0025\u0073\u002d\u0025\u0064\u005f\u0065\u0078\u0070\u002e\u0070\u006e\u0067",_fdb ,_edab -1));if _fge :=CopyFile (_fgf ,_bccg );_fge !=nil {_fcff .Fatalf ("\u0045\u0052\u0052OR\u0020\u0063\u006f\u0070\u0079\u0069\u006e\u0067\u0020\u0074\u006f\u0020\u0025\u0073\u003a\u0020\u0025\u0076",_bccg ,_fge );};};_fcff .Logf ("\u0043\u006f\u006d\u0062\u0069\u006e\u0069\u006e\u0067\u0020\u0055\u006e\u0069\u004f\u0066\u0066\u0069\u0063e\u0020\u0072\u0065\u0073\u0075\u006c\u0074s\u0020\u0077\u0069\u0074\u0068\u0020\u004d\u0053\u0020\u0057\u006fr\u0064\u0020\u0025\u0073\u0020\u0061\u006e\u0064\u0020\u0025\u0073",_eeb ,_bccg );_cdf ,_afe :=CombinePNGFiles (_eeb ,_bccg );if _ee .IsNotExist (_afe ){_fcff .Fatal ("\u0069m\u0061g\u0065\u0020\u0066\u0069\u006ce\u0020\u006di\u0073\u0073\u0069\u006e\u0067");}else if !_cdf {_fcff .Fatal ("\u0055n\u0061\u0062\u006c\u0065\u0020\u0074\u006f\u0020\u0063\u006f\u006db\u0069\u006e\u0065\u0020\u0069\u006d\u0061\u0067\u0065\u0073");};_fcff .Logf ("Cr\u0065\u0061t\u0069\u006e\u0067\u0020\u0069\u006d\u0061\u0067\u0065 \u0064\u0069\u0066\u0066\u0020\u0055\u006e\u0069\u004f\u0066\u0066\u0069\u0063\u0065\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0073\u0020\u0077\u0069\u0074\u0068\u0020M\u0053 \u0057\u006f\u0072\u0064\u0020\u0025\u0073\u0020a\u006ed\u0020\u0025s",_eeb ,_bccg );_cdf ,_fag ,_dagc ,_beba ,_afe :=CreatePNGDiff (_eeb ,_bccg );if _afe !=nil &&_afe !=ErrImageSizeNotMatch {_fcff .Fatalf ("\u0045\u0072\u0072\u006fr\u0020\u006f\u006e\u0020\u0063\u0072\u0065\u0061\u0074\u0065 \u0050N\u0047\u0020\u0044\u0069\u0066\u0066\u003a \u0025\u0076",_afe );};if _cdf {_fcff .Logf ("\u0049\u006d\u0061\u0067\u0065\u003a\u0020\u0025\u0073\u000a",_fag );_fcff .Logf ("D\u0069\u0066\u0066\u0020Pe\u0072c\u0065\u006e\u0074\u003a\u0020%\u0032\u002e\u0066\u0025\u0025\u000a",_dagc );_fcff .Logf ("\u0044i\u0066f\u0020\u0054\u006f\u0074\u0061\u006c\u003a\u0020\u0025\u0066\u000a",_beba );_bac :=_ed .Base (_fag );if _ecb ,_ggc :=currentHashMap .Read (_bac );_ggc {if _ecb .DiffPercent < _dagc ||_ecb .DiffTotal < _beba {_fcff .Fatalf ("\u004e\u0065\u0077\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0073\u0020\u0068\u0061\u0076\u0069\u006e\u0067 h\u0069g\u0068\u0065\u0072\u0020\u0064\u0069\u0066\u0066\u0065\u0072\u0065\u006ec\u0065\u0020\u0070\u0065\u0072\u0063\u0065\u006e\u0074\u003a\u0020\u0025\u0066\u0020\u0061\u006e\u0064 \u0074\u006f\u0074\u0061\u006c\u0020\u0025\u0066\u000a",_dagc ,_beba );};};_ccc ,_eaaa :=HashFile (_fag );_fd .NoError (_fcff ,_eaaa );_daga :=ReferenceEntry {Timestamp :_ge .Now ().UTC ().Unix (),Value :_ccc ,ResultSize :_aace (_fcff ,_fag ),DiffPercent :_dagc ,DiffTotal :_beba };currentHashMap .Write (_bac ,_daga );if _eaaa =refFile .Update (currentHashMap );_eaaa !=nil {_fcff .Logf ("\u0055\u0070\u0064\u0061\u0074\u0065\u0020\u0072\u0065\u0066\u0065\u0072\u0065\u006e\u0063e\u0020f\u0069\u006c\u0065\u0020\u0066\u0061\u0069\u006c\u0065\u0064\u003a\u0020\u0025\u0076",_eaaa );};};};continue ;};_fcff .Run (_ad .Sprintf ("\u0070\u0061\u0067\u0065\u0025\u0064",_edab ),func (_ffbf *_b .T ){_ffbf .Logf ("\u0043o\u006dp\u0061\u0072\u0069\u006e\u0067 \u0025\u0073 \u0076\u0073\u0020\u0025\u0073",_bdb ,_eeb );_cef ,_eadf :=ComparePNGFiles (_bdb ,_eeb );if _ee .IsNotExist (_eadf ){_ffbf .Fatal ("\u0069m\u0061g\u0065\u0020\u0066\u0069\u006ce\u0020\u006di\u0073\u0073\u0069\u006e\u0067");}else if !_cef {_ffbf .Fatal ("\u0077\u0072\u006f\u006eg \u0070\u0061\u0067\u0065\u0020\u0072\u0065\u006e\u0064\u0065\u0072\u0065\u0064");};});};});};func (_fcb *ReferenceMap )Read (key string )(ReferenceEntry ,bool ){_fcb .Lock ();defer _fcb .Unlock ();if _fcb ._bff ==nil {return ReferenceEntry {},false ;};_cc ,_bgd :=_fcb ._bff [key ];return _cc ,_bgd ;};func (_add *ReferenceMap )Copy ()*ReferenceMap {_fgg :=ReferenceMap {_bff :make (map[string ]ReferenceEntry ,len (_add ._bff ))};for _af ,_ddf :=range _add ._bff {_fgg ._bff [_af ]=_ddf ;};return &_fgg ;};func ReadFile (dirPath ,testName string ,createEmpty bool )(*ReferenceFile ,error ){if dirPath ==""&&createEmpty {return &ReferenceFile {Map :&ReferenceMap {}},nil ;};if dirPath ==""{return nil ,_ee .ErrNotExist ;};_dae :=_ed .Join (dirPath ,testName +"\u005fr\u0065f\u0065\u0072\u0065\u006e\u0063\u0065\u002e\u006a\u0073\u006f\u006e");_def :=&ReferenceFile {_abe :_dae };_aa ,_bd :=_ee .Open (_dae );if _bf .Is (_bd ,_ee .ErrNotExist )&&createEmpty {_def .Timestamp =_ge .Now ().UTC ();_def .Map =&ReferenceMap {};return _def ,nil ;};if _bd !=nil {return nil ,_bd ;};defer _aa .Close ();if _ccb :=_c .NewDecoder (_aa ).Decode (_def );_ccb !=nil {if _ccb .Error ()=="i\u006c\u006c\u0065\u0067\u0061\u006c \u0062\u0061\u0073\u0065\u0036\u0034 \u0064\u0061\u0074\u0061\u0020\u0061\u0074 \u0069\u006e\u0070\u0075\u0074\u0020\u0062\u0079\u0074\u0065 \u0030"&&createEmpty {return _def ,nil ;};return nil ,_ccb ;};return _def ,nil ;};func (_eaa *ReferenceFile )updateMap (_bg *ReferenceMap )int {var _cf int ;if _eaa .Map ._bff ==nil {_eaa .Map ._bff =map[string ]ReferenceEntry {};};for _dd ,_ce :=range _bg ._bff {_dba ,_fc :=_eaa .Map ._bff [_dd ];if !_fc {_eaa .Map ._bff [_dd ]=_ce ;_cf ++;continue ;};if string (_dba .Value )!=string (_ce .Value ){_eaa .Map ._bff [_dd ]=_ce ;_cf ++;};};for _ae :=range _eaa .Map ._bff {if _ ,_ga :=_bg ._bff [_ae ];!_ga {delete (_eaa .Map ._bff ,_ae );_cf ++;};};return _cf ;};type ReferenceFile struct{Timestamp _ge .Time `json:"timestamp"`;Map *ReferenceMap `json:"map,omitempty"`;_abe string ;};func CombinePNGFiles (file1 ,file2 string )(bool ,error ){_gedb ,_eg :=ReadPNG (file1 );if _eg !=nil {return false ,_eg ;};_cg ,_eg :=ReadPNG (file2 );if _eg !=nil {return false ,_eg ;};_adc :=_gc .Point {_gedb .Bounds ().Dx (),0};_cgd :=_gc .Rectangle {_adc ,_adc .Add (_cg .Bounds ().Size ())};_cdb :=_gc .Rectangle {_gc .Point {0,0},_cgd .Max };_cdbe :=_gc .NewRGBA (_cdb );_ca .Draw (_cdbe ,_gedb .Bounds (),_gedb ,_gc .Point {0,0},_ca .Src );_ca .Draw (_cdbe ,_cgd ,_cg ,_gc .Point {0,0},_ca .Src );_bge :=_ed .Dir (file1 );_fgc :=_d .TrimSuffix (_ed .Base (file1 ),_ed .Ext (file1 ));_dace ,_eg :=_ee .Create (_bge +"\u002f"+_fgc +"\u002d\u0063\u006f\u006d\u0062\u0069\u006e\u0065\u0064\u002e\u0070\u006e\u0067");if _eg !=nil {return false ,_eg ;};defer _dace .Close ();if _fga :=_ab .Encode (_dace ,_cdbe );_fga !=nil {return false ,_fga ;};return true ,nil ;};func _aace (_gff *_b .T ,_dadb string )int64 {_bab ,_ecg :=_ee .Stat (_dadb );_fd .NoError (_gff ,_ecg );return _bab .Size ();};func CreatePNGDiff (src ,dst string )(bool ,string ,float64 ,float64 ,error ){_ef ,_ccd :=ReadPNG (src );if _ccd !=nil {return false ,"",0,0,_ccd ;};_cfg ,_ccd :=ReadPNG (dst );if _ccd !=nil {return false ,"",0,0,_ccd ;};_agg :=_ef .Bounds ();_bfg :=_cfg .Bounds ();if !_eda (_agg ,_bfg ){return false ,"",0,0,ErrImageSizeNotMatch ;};_ffb :=_gc .NewRGBA (_gc .Rect (0,0,_agg .Max .X ,_agg .Max .Y ));var (_dbd float64 ;_ac float64 ;);for _ffbe :=_agg .Min .Y ;_ffbe < _agg .Max .Y ;_ffbe ++{for _fa :=_agg .Min .X ;_fa < _agg .Max .X ;_fa ++{_dcc ,_ddg ,_ace ,_dedb :=_cfg .At (_fa ,_ffbe ).RGBA ();_ffb .Set (_fa ,_ffbe ,_a .RGBA {uint8 (_dcc ),uint8 (_ddg ),uint8 (_ace ),64});_ddb ,_cff ,_feb ,_gfd :=_ef .At (_fa ,_ffbe ).RGBA ();if !_ebf (_ef .At (_fa ,_ffbe ),_cfg .At (_fa ,_ffbe )){_ffb .Set (_fa ,_ffbe ,_a .RGBA {uint8 (_ddb ),uint8 (_cff ),uint8 (_feb ),uint8 (_gfd )});_eee :=float64 (_ddb )+float64 (_cff )+float64 (_feb )+float64 (_gfd )-float64 (_dcc )+float64 (_ddg )+float64 (_ace )+float64 (_dedb );_adf :=_fg .Sqrt (_fg .Pow (_eee /float64 (_agg .Dx ()*_agg .Dy ()),2));_ac +=_adf ;_dbd ++;};};};_cffa :=_dbd /float64 (_agg .Dx ()*_agg .Dy ())*100;_ffc :=_ed .Dir (src );_dccb :=_d .TrimSuffix (_ed .Base (src ),_ed .Ext (src ));_edc ,_ccd :=_ee .Create (_ffc +"\u002f"+_dccb +"\u002dd\u0069\u0066\u0066\u002e\u0070\u006eg");if _ccd !=nil {return false ,"",0,0,_ccd ;};defer _edc .Close ();_gfeg :=_d .Replace (_ffc ,"\u0072\u0065\u006e\u0064\u0065\u0072","\u0066\u006f\u006et\u0073",1)+"\u002f\u0043\u0061l\u0069\u0062\u0072\u0069\u002e\u0074\u0074\u0066";_cec :=_ad .Sprintf ("\u0044\u0069f\u0066\u0065\u0072e\u006e\u0063\u0065\u003a\u0020\u0025\u0066\u0025\u0025",_cffa );_ccd =_bfe (_ffb ,_gfeg ,_cec ,15,22);if _ccd !=nil {return false ,"",0,0,_ccd ;};_cec =_ad .Sprintf ("T\u006ft\u0061\u006c\u0020\u0044\u0069\u0066\u0066\u0065r\u0065\u006e\u0063\u0065: \u0025\u0066",_ac );_ccd =_bfe (_ffb ,_gfeg ,_cec ,15,44);if _ccd !=nil {return false ,"",0,0,_ccd ;};if _eag :=_ab .Encode (_edc ,_ffb );_eag !=nil {return false ,"",0,0,_eag ;};return true ,_edc .Name (),_cffa ,_ac ,nil ;};func (_bc *ReferenceMap )Write (key string ,entry ReferenceEntry ){_bc .Lock ();defer _bc .Unlock ();if _bc ._bff ==nil {_bc ._bff =map[string ]ReferenceEntry {};};_bc ._bff [key ]=entry ;};func _bfe (_bgf *_gc .RGBA ,_ba string ,_df string ,_adg ,_adca int )error {_dade ,_faa :=_e .ReadFile (_ba );if _faa !=nil {return _faa ;};_dag ,_faa :=_agc .Parse (_dade );if _faa !=nil {return _faa ;};_ead ,_faa :=_agc .NewFace (_dag ,&_agc .FaceOptions {Size :18,DPI :72,Hinting :_de .HintingNone });if _faa !=nil {return _faa ;};_bgee :=&_de .Drawer {Dst :_bgf ,Src :_gc .NewUniform (_a .RGBA {200,100,0,255}),Face :_ead ,Dot :_fe .P (_adg ,_adca )};_bgee .DrawString (_df );return nil ;};func ComparePNGFiles (file1 ,file2 string )(bool ,error ){_dad ,_cae :=HashFile (file1 );if _cae !=nil {return false ,_cae ;};_ffa ,_cae :=HashFile (file2 );if _cae !=nil {return false ,_cae ;};if _dad ==_ffa {return true ,nil ;};_bgdb ,_cae :=ReadPNG (file1 );if _cae !=nil {return false ,_cae ;};_aga ,_cae :=ReadPNG (file2 );if _cae !=nil {return false ,_cae ;};if _bgdb .Bounds ()!=_aga .Bounds (){return false ,nil ;};return CompareImages (_bgdb ,_aga );};func HashFile (file string )(string ,error ){_ged ,_cb :=_ee .Open (file );if _cb !=nil {return "",_cb ;};defer _ged .Close ();_gb :=_ea .New ();if _ ,_cb =_gg .Copy (_gb ,_ged );_cb !=nil {return "",_cb ;};return _ag .EncodeToString (_gb .Sum (nil )),nil ;};func _eda (_bcc ,_gfa _gc .Rectangle )bool {return _bcc .Min .X ==_gfa .Min .X &&_bcc .Min .Y ==_gfa .Min .Y &&_bcc .Max .X ==_gfa .Max .X &&_bcc .Max .Y ==_gfa .Max .Y ;};func (_gcb *ReferenceMap )MarshalJSON ()([]byte ,error ){return _c .Marshal (_gcb ._bff )};func RenderPDFToPNGs (pdfPath string ,dpi int ,outpathTpl string )error {if dpi <=0{dpi =100;};if _ ,_aca :=_f .LookPath ("\u0067\u0073");_aca !=nil {return ErrRenderNotSupported ;};return _f .Command ("\u0067\u0073","\u002d\u0073\u0044\u0045\u0056\u0049\u0043\u0045\u003d\u0070\u006e\u0067a\u006c\u0070\u0068\u0061","\u002d\u006f",outpathTpl ,_ad .Sprintf ("\u002d\u0072\u0025\u0064",dpi ),pdfPath ).Run ();};func _ebf (_fcbe ,_eaag _a .Color )bool {_fcf ,_gfc ,_dacg ,_ec :=_fcbe .RGBA ();_bbb ,_gfb ,_aad ,_eae :=_eaag .RGBA ();return _fcf ==_bbb &&_gfc ==_gfb &&_dacg ==_aad &&_ec ==_eae ;};var (ErrRenderNotSupported =_bf .New ("\u0072\u0065\u006e\u0064\u0065r\u0069\u006e\u0067\u0020\u0050\u0044\u0046\u0020\u0066\u0069\u006c\u0065\u0073 \u0069\u0073\u0020\u006e\u006f\u0074\u0020\u0073\u0075\u0070\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u006e\u0020\u0074\u0068\u0069\u0073\u0020\u0073\u0079\u0073\u0074\u0065m");ErrImageSizeNotMatch =_bf .New ("\u0069\u006d\u0061ge\u0020\u0073\u0069\u007a\u0065\u0073\u0020\u0064\u006f\u006e\u0027\u0074\u0020\u006d\u0061\u0074\u0063\u0068"););func (_ded *ReferenceFile )Update (currentMap *ReferenceMap )error {if _ded ._abe ==""{return nil ;};_fdc :=_ded .updateMap (currentMap );if _fdc ==0{return nil ;};_eb ,_db :=_ee .OpenFile (_ded ._abe ,_ee .O_CREATE |_ee .O_TRUNC |_ee .O_WRONLY ,0664);if _db !=nil {return _db ;};defer _eb .Close ();_ded .Timestamp =_ge .Now ().UTC ();_da :=_c .NewEncoder (_eb );_da .SetIndent ("","\u0009");return _da .Encode (_ded );};type ReferenceMap struct{_age .Mutex ;_bff map[string ]ReferenceEntry ;};type ReferenceEntry struct{Timestamp int64 `json:"timestamp"`;Value string `json:"value"`;ResultSize int64 `json:"resultSize,omitempty"`;DiffPercent float64 `json:"diffPercent,omitempty"`;DiffTotal float64 `json:"diffValue,omitempty"`;Invalid bool `json:"markedInvalid,omitempty"`;};func ReadPNG (file string )(_gc .Image ,error ){_eba ,_edf :=_ee .Open (file );if _edf !=nil {return nil ,_edf ;};defer _eba .Close ();return _ab .Decode (_eba );};