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README.md

go-warc: golang library to work with WARC files

go-warc is a golang port of the python warc library:

https://github.com/internetarchive/warc

Note that currently only reading of WARC files is supported. Writing of WARC files may be implemented at some future point.

WARC (Web ARChive) is a file format for storing web crawls.

http://bibnum.bnf.fr/WARC/

This warc library makes it very easy to work with WARC files.::

package main

import (
    "fmt"
    "os"
    "github.com/wolfgangmeyers/go-warc/warc"
)

func main() {
    infilename := os.Args[1]
    f, err := os.Open(infilename)
    if err != nil {
        panic(err)
    }
    defer f.Close()
    wf, err := warc.NewWARCFile(f)
    if err != nil {
        panic(err)
    }
    reader := wf.GetReader()
    count := 0
    reader.Iterate(func(wr *warc.WARCRecord, err error) {
        if err == nil {
            count++
            fmt.Printf("Processed: %v - %v\n", wr.GetHeader().GetRecordId(), count)
            // you could do some other stuff with the record here
        }
    })
    fmt.Printf("Done!")
}

Installing

Make sure you have a working go environment. Instructions can be found here:

https://golang.org/doc/install

Currently go-warc builds against the standard go library with no external dependencies. To install the go-warc library:

go get github.com/wolfgangmeyers/go-warc/warc
go get github.com/wolfgangmeyers/go-warc/warc/utils

Testing

Navigate to the root of the project and run:

$ go test warc warc/utils

Documentation

There isn't any yet. The original python documentation of the warc library is available at http://warc.readthedocs.org/.

License

This software is licensed under GPL v2. See LICENSE file for details.

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A golang library to work with WARC files from the common crawl

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