https://github.com/hackergrrl/osm-p2p-diff

Generate a diff of OSM documents in two osm-p2p-db instances.
https://github.com/hackergrrl/osm-p2p-diff

Last synced: 1 day ago
JSON representation

Generate a diff of OSM documents in two osm-p2p-db instances.

• Host: GitHub
• URL: https://github.com/hackergrrl/osm-p2p-diff
• Owner: hackergrrl
• Created: 2017-03-29T03:54:08.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-03-29T04:25:56.000Z (over 7 years ago)
• Last Synced: 2024-09-24T16:09:44.576Z (9 days ago)
• Language: JavaScript
• Homepage:
• Size: 4.88 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# osm-p2p-diff

> Generate a diff of OSM documents in two osm-p2p-db instances.

Writes, to standard out, all of the OSM documents that appear in the second DB

that don't appear in the first, as newline-delimited JSON.

Can be used in conjunction with

[osm-p2p-append](https://github.com/noffle/osm-p2p-append) to merge two

osm-p2p-db databases together.

## CLI

```

  USAGE: osm-p2p-diff  

```

Point this at two [hyperlog](https://github.com/mafintosh/hyperlog) leveldb

directories. If you're working with an osm-p2p-db, this will be `osm-dir/log`.

To perform a merge between two `osm-p2p-db`s, combine with `osm-p2p-diff`:

```

$ osm-p2p-diff osm1/log osm2/log > diff

$ osm-p2p-append osm1 < diff

```

## API

```js

var diff = require('osm-p2p-diff')

```

### var readable = diff(log1, log2)

Accepts two hyperlog instances of two `osm-p2p-db`s. Returns a Readable stream

of newline-delimited JSON containing the documents that are in `log2` but not

`log1`.

## Install

With [npm](https://npmjs.org/) installed, run

```

$ npm install -g osm-p2p-diff

```

## See Also

- [osm-p2p-append](https://github.com/noffle/osm-p2p-append)

## License

ISC