Ensure non-US countries with less airport codes get sufficient choices
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This commit is contained in:
parent
7f0c60b392
commit
ba0a727150
97
airports.go
97
airports.go
@ -24,6 +24,10 @@ type Airport struct {
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data *alphafoxtrot.Airport
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}
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type Finder struct {
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f *alphafoxtrot.AirportFinder
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}
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func main() {
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var dataDir = flag.String("data-dir", "./data", "Data cache directory")
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@ -32,7 +36,9 @@ func main() {
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validateData(*dataDir)
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finder := alphafoxtrot.NewAirportFinder()
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finder := &Finder{
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f: alphafoxtrot.NewAirportFinder(),
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}
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// LoadOptions come with preset filepaths
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options := alphafoxtrot.PresetLoadOptions(*dataDir)
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@ -41,10 +47,47 @@ func main() {
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filter := alphafoxtrot.AirportTypeRunways
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// Load the data into memory
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if err := finder.Load(options, filter); len(err) > 0 {
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if err := finder.f.Load(options, filter); len(err) > 0 {
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log.Println("errors:", err)
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}
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if args := flag.Args(); len(args) > 0 {
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if len(args) != 4 {
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fmt.Printf("[cc] [lat] [lng] [radius]\n")
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os.Exit(2)
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}
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cc := strings.ToUpper(args[0])
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latitude, err := strconv.ParseFloat(args[1], 64)
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if err != nil {
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fmt.Printf("could not parse %s as latitude: %s", args[1], err)
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os.Exit(2)
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}
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longitude, err := strconv.ParseFloat(args[2], 64)
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if err != nil {
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fmt.Printf("could not parse %s as longitude: %s", args[2], err)
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os.Exit(2)
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}
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radiusKM, err := strconv.ParseFloat(args[3], 64)
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if err != nil {
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fmt.Printf("could not parse %s as radius: %s", args[3], err)
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os.Exit(2)
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}
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airports, err := finder.GetAirports(cc, radiusKM, latitude, longitude)
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if err != nil {
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fmt.Printf("GetAirports error: %s\n", err)
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}
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for _, a := range airports {
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fmt.Printf("%s\t%s (%0f)\n", a.Code, a.Name, a.Distance)
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}
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os.Exit(0)
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}
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e := echo.New()
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e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
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@ -63,13 +106,15 @@ func main() {
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radiusString := c.QueryParam("radius")
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var radiusKM int
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var radiusKM float64
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if len(radiusString) > 0 {
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radiusKM, _ = strconv.Atoi(radiusString)
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radiusKM, _ = strconv.ParseFloat(radiusString, 64)
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}
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if radiusKM < 10 {
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radiusKM = 100
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if radiusKM < 150 {
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radiusKM = 150
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} else {
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radiusKM = radiusKM * 1.5
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}
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latitude, longitude, err := getLatLng(c)
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@ -77,11 +122,33 @@ func main() {
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return c.String(http.StatusBadRequest, fmt.Sprintf("invalid lat or lng: %s", err))
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}
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airports, err := finder.GetAirports(countryISOCode, radiusKM, latitude, longitude)
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if err != nil {
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return err
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}
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return c.JSON(http.StatusOK, airports)
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})
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e.Logger.Fatal(e.Start(":8000"))
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}
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func (f *Finder) GetAirports(cc string, radiusKM, latitude, longitude float64) ([]*Airport, error) {
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log.Printf("GetAirports(%s %.2f %.4f %.4f)", cc, radiusKM, latitude, longitude)
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ipLocation := s2.LatLngFromDegrees(latitude, longitude)
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maxResults := 100
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radiusInMeters := float64(radiusKM) * 1000
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airportsRaw := finder.FindNearestAirportsByCountry(countryISOCode, latitude, longitude, radiusInMeters, maxResults, filter)
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maxResults := 500 // some countries have a lot of airports without local codes
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radiusInMeters := radiusKM * 1000
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airportsRaw := f.f.FindNearestAirportsByCountry(
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cc,
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latitude, longitude,
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radiusInMeters,
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maxResults,
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alphafoxtrot.AirportTypeAll, // filtered at load time
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)
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airports := []*alphafoxtrot.Airport{}
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for _, ap := range airportsRaw {
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@ -100,7 +167,7 @@ func main() {
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r := []*Airport{}
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for i, airport := range airports {
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// fmt.Printf("%d %s: %+v\n", i, airport.Name, airport)
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fmt.Printf("%d %s: %+v\n", i, airport.Name, airport)
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code := strings.ToLower(airport.Country.ISOCode + airport.IATACode)
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@ -122,17 +189,13 @@ func main() {
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return airports[i].Type < airports[j].Type
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})
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if len(r) > 10 {
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r = r[0:10]
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if len(r) > 15 {
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r = r[0:15]
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}
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fmt.Printf("got %d airports, filtered to %d, returning %d\n", len(airportsRaw), len(airports), len(r))
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return c.JSON(http.StatusOK, r)
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})
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e.Logger.Fatal(e.Start(":8000"))
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return r, nil
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}
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func validateData(dataDir string) {
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8
go.mod
8
go.mod
@ -16,9 +16,9 @@ require (
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github.com/mattn/go-isatty v0.0.14 // indirect
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github.com/valyala/bytebufferpool v1.0.0 // indirect
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github.com/valyala/fasttemplate v1.2.1 // indirect
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golang.org/x/crypto v0.0.0-20220408190544-5352b0902921 // indirect
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golang.org/x/net v0.0.0-20220407224826-aac1ed45d8e3 // indirect
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golang.org/x/sys v0.0.0-20220408201424-a24fb2fb8a0f // indirect
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golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f // indirect
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golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
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golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 // indirect
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golang.org/x/text v0.3.7 // indirect
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golang.org/x/time v0.0.0-20220224211638-0e9765cccd65 // indirect
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golang.org/x/time v0.0.0-20220411224347-583f2d630306 // indirect
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)
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8
go.sum
8
go.sum
@ -31,8 +31,12 @@ golang.org/x/crypto v0.0.0-20220331220935-ae2d96664a29 h1:tkVvjkPTB7pnW3jnid7kNy
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golang.org/x/crypto v0.0.0-20220331220935-ae2d96664a29/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/crypto v0.0.0-20220408190544-5352b0902921 h1:iU7T1X1J6yxDr0rda54sWGkHgOp5XJrqm79gcNlC2VM=
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golang.org/x/crypto v0.0.0-20220408190544-5352b0902921/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f h1:OeJjE6G4dgCY4PIXvIRQbE8+RX+uXZyGhUy/ksMGJoc=
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golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/net v0.0.0-20220407224826-aac1ed45d8e3 h1:EN5+DfgmRMvRUrMGERW2gQl3Vc+Z7ZMnI/xdEpPSf0c=
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golang.org/x/net v0.0.0-20220407224826-aac1ed45d8e3/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
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golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 h1:HVyaeDAYux4pnY+D/SiwmLOR36ewZ4iGQIIrtnuCjFA=
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golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
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golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20211103235746-7861aae1554b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@ -40,12 +44,16 @@ golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12 h1:QyVthZKMsyaQwBTJE04jdNN0P
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golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220408201424-a24fb2fb8a0f h1:8w7RhxzTVgUzw/AH/9mUV5q0vMgy40SQRursCcfmkCw=
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golang.org/x/sys v0.0.0-20220408201424-a24fb2fb8a0f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 h1:nonptSpoQ4vQjyraW20DXPAglgQfVnM9ZC6MmNLMR60=
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golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
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golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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golang.org/x/time v0.0.0-20201208040808-7e3f01d25324 h1:Hir2P/De0WpUhtrKGGjvSb2YxUgyZ7EFOSLIcSSpiwE=
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golang.org/x/time v0.0.0-20201208040808-7e3f01d25324/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/time v0.0.0-20220224211638-0e9765cccd65 h1:M73Iuj3xbbb9Uk1DYhzydthsj6oOd6l9bpuFcNoUvTs=
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golang.org/x/time v0.0.0-20220224211638-0e9765cccd65/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/time v0.0.0-20220411224347-583f2d630306 h1:+gHMid33q6pen7kv9xvT+JRinntgeXO2AeZVd0AWD3w=
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golang.org/x/time v0.0.0-20220411224347-583f2d630306/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
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