meta

README

go-whosonfirst-meta

Go package for working with Who's On First meta files

Install

You will need to have both Go and the make programs installed on your computer. Assuming you do just type:

make tools

All of this package's dependencies are bundled with the code in the vendor directory.

Tools

wof-build-metafiles

Crawl a Who's On First data repository and rebuild one or more meta files.

$> wof-build-metafiles -h
Usage of ./bin/wof-build-metafiles:
  -exclude string
    	A comma-separated list of placetypes that meta files will not be created for.
  -open-filehandles int
    	The maximum number of file handles to keep open at any given moment. (default 512)
  -out string
    	Where to store metafiles. If empty then assume metafile are created in a child folder of 'repo' called 'meta'.
  -placetypes string
    	A comma-separated list of placetypes that meta files will be created for. All other placetypes will be ignored.
  -processes int
    	The number of concurrent processes to use. (default 8)
  -repo string
    	Where to read data (to create metafiles) from. If empty then the code will assume the current working directory.
  -roles string
    	Role-based filters are not supported yet.

For example:

$> cd whosonfirst-data
$> wof-build-metafiles
2017/06/29 14:28:51 time to dump 486685 features: 3m46.345202842s

See also

• https://github.com/whosonfirst/py-mapzen-whosonfirst-meta

Documentation

Index

• func DumpFeature(feature []byte) (map[string]string, error)
• func FeatureToRow(feature []byte) (map[string]string, error)
• func UpdateMetafile(source io.Reader, dest io.Writer, updated []string) error
• type WOFMetaDefaults
  • func GetDefaults() (*WOFMetaDefaults, error)
  • func (d WOFMetaDefaults) EnsureDefaults(row map[string]string) map[string]string

Functions

func DumpFeature

func DumpFeature(feature []byte) (map[string]string, error)

func FeatureToRow

func FeatureToRow(feature []byte) (map[string]string, error)

func UpdateMetafile

func UpdateMetafile(source io.Reader, dest io.Writer, updated []string) error

Types

type WOFMetaDefaults

type WOFMetaDefaults map[string]interface{}

func GetDefaults

func GetDefaults() (*WOFMetaDefaults, error)

func (WOFMetaDefaults) EnsureDefaults

func (d WOFMetaDefaults) EnsureDefaults(row map[string]string) map[string]string