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aeson-diff: Extract and apply patches to JSON documents.

[ algorithms, bsd3, json, library, program, web ] [ Propose Tags ]

This is a small library for working with changes to JSON documents. It includes a library and two command-line executables in the style of the diff(1) and patch(1) commands available on many systems.

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Versions [RSS] 0.1.1.1, 0.1.1.2, 0.1.1.3, 1.0.0.0, 1.0.0.1, 1.1.0.0, 1.1.0.2, 1.1.0.3, 1.1.0.4, 1.1.0.5, 1.1.0.7, 1.1.0.8, 1.1.0.9, 1.1.0.10, 1.1.0.11, 1.1.0.12, 1.1.0.13
Change log CHANGELOG.md
Dependencies aeson (>=0.8 && <0.9), aeson-diff, base (>=4.7 && <4.9), bytestring, edit-distance-vector (>=1.0 && <2.0), hashable, mtl, optparse-applicative (>=0.11 && <0.12), scientific, text, unordered-containers, vector [details]
License BSD-3-Clause
Copyright (c) 2015 Thomas Sutton and others.
Author Thomas Sutton
Maintainer me@thomas-sutton.id.au
Revised Revision 1 made by GeorgeWilson at 2018-11-22T03:03:21Z
Category JSON, Web, Algorithms
Home page https://github.com/thsutton/aeson-diff
Source repo head: git clone https://github.com/thsutton/aeson-diff
Uploaded by ThomasSutton at 2015-04-03T10:22:13Z
Distributions Arch:1.1.0.13, Debian:1.1.0.9, LTSHaskell:1.1.0.13, NixOS:1.1.0.13, Stackage:1.1.0.13
Reverse Dependencies 5 direct, 3 indirect [details]
Executables json-patch, json-diff
Downloads 12655 total (36 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by Bayesian average]
Your Rating
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Status Docs available [build log]
Last success reported on 2015-04-03 [all 1 reports]

Readme for aeson-diff-0.1.1.1

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Aeson Diff

Build Status

This is a small library for working with changes to JSON documents. It includes a library and two executables in the style of diff(1) and patch(1).

Installing

The aeson-diff package is written in Haskell and can be installed using the Cabal package management tool.

For the command-line tools only, I recommend using Cabal's sandbox functionality to avoid installing the associated libraries globally on your system. This approach might look something like the following:

cd aeson-diff/
cabal sandbox init
cabal install --dependencies-only
cabal build
sudo mkdir -p /usr/local/bin
sudo cp dist/build/json-*/json-{diff,patch} /usr/local/bin/

If you want to use the library, use Cabal in a sandbox or not according to your preference.

cabal sandbox init
cabal sandbox install ~/Downloads/aeson-diff/

Usage

json-diff command

The json-diff command compares two JSON documents and extracts a patch describing the differences between the first document and the second.

Usage: json-diff [-j|--json] [-o|--output OUTPUT] FROM TO
Generate a patch between two JSON documents.

Available options:
    -h,--help                Show this help text
    -j,--json                Output patch in JSON.

json-patch command

The json-patch command applies a patch describing changes to be made to a JSON document.

Usage: json-patch [-j|--json] [-o|--output OUTPUT] PATCH FROM
Generate a patch between two JSON documents.

Available options:
  -h,--help                Show this help text
  -j,--json                Patch is in JSON format.
  -o,--output OUTPUT       Destination for patched JSON.
  PATCH                    Patch to apply.
  FROM                     JSON file to patch.

aeson-diff library

The aeson-diff library exports as single module: Data.Aeson.Diff. This exports diff and patch functions which do exactly what might be expected:

  • diff :: Value -> Value -> Patch examines source and target JSON Values and constructs a new Patch describing the changes.

  • patch :: Patch -> Value -> Value applies the changes in a Patch to a JSON Value.

For more complete information, see the documentation.