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diff2html-cli

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diff2html-cli

Fast Diff to colorized HTML

  • 5.1.0
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diff2html-cli

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Diff to Html generates pretty HTML diffs from unified and git diff output in your terminal

Table of Contents

Features

  • Unified diff and Git diff input

  • line-by-line and side-by-side diff

  • new and old line numbers

  • inserted and removed lines

  • GitHub like style

  • Code syntax highlight

  • Line similarity matching

Online Example

Go to Diff2HTML

Distributions

Setup

npm install -g diff2html-cli

Usage

Usage: diff2html [ flags and/or options ] -- [git diff passthrough flags and options]

flagaliasdescriptionchoicesdefault
-s--styleOutput styleline, sideline
--sc--synchronisedScrollSynchronised horizontal scrolltrue, falsetrue
--hc--highlightCodeHighlight codetrue, falsetrue
--su--summaryShow files summaryclosed, open, hiddenclosed
-d--diffStyleDiff styleword, charword
--lm--matchingDiff line matching typelines, words, nonenone
--lmt--matchWordsThresholdDiff line matching word threshold0.25
--lmm--matchingMaxComparisonsDiff line matching maximum line comparisons of a block of changes2500
--hwt--htmlWrapperTemplatePath to custom template to be rendered when using the html output format[string]
-f--formatOutput formathtml, jsonhtml
-i--inputDiff input sourcefile, command, stdincommand
-o--outputOutput destinationpreview, stdoutpreview
-u--diffyUpload to diffy.orgbrowser, pbcopy, print
-F--fileSend output to file (overrides output option)[string]
--ig--ignoreIgnore particular files from the diff[string]
-v--versionShow version number
-h--helpShow help

Exit Status Codes

  • :tada: 0: Success
  • :dizzy_face: 1: Generic Error
  • :cold_sweat: 3: Input diff is empty
  • :cop: 4: Value of --hwt | --htmlWrapperTemplate is not a valid file

Custom HTML wrapper template

The template is a very based on a simple replace of several placeholders as coded https://github.com/rtfpessoa/diff2html-cli/blob/master/src/cli.ts#L40

To provide a custom template you need to make sure you have the following comments and imports in your HTML, exactly as they are here:

  • Inside the <head> tag
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.9.0/styles/github.min.css" />
<!--diff2html-css-->
<!--diff2html-js-ui-->
<script>
  document.addEventListener('DOMContentLoaded', () => {
    const targetElement = document.getElementById('diff');
    const diff2htmlUi = new Diff2HtmlUI(targetElement);
    //diff2html-fileListToggle
    //diff2html-synchronisedScroll
    //diff2html-highlightCode
  });
</script>
  • Inside the <body> tag
<div id="diff">
  <!--diff2html-diff-->
</div>

Examples

diff2html -s line -f html -d word -i command -o preview -- -M HEAD~1

  • diff last commit, line by line, word comparison between lines, previewed in the browser and input from git diff command

diff2html -i file -- my-file-diff.diff

  • reading the input from a file

diff -u file1.txt file2.txt | diff2html -i stdin

  • reading diff from stdin

diff2html -f json -o stdout -- -M HEAD~1

  • print json format to stdout

diff2html -F my-pretty-diff.html -- -M HEAD~1

  • print to file

diff2html -F my-pretty-diff.html --hwt my-custom-template.html -- -M HEAD~1

  • print to file using custom markup templates can include the following variables

diff2html --ig package-lock.json --ig yarn.lock

  • Ignore package-lock.json and yarn.lock from the generated diff

NOTE: notice the -- in the examples

Contribute

This is a developer friendly project, all the contributions are welcome. To contribute just send a pull request with your changes following the guidelines described in CONTRIBUTING.md. I will try to review them as soon as possible.

Developing

Make some changes, yarn build and then ./bin/diff2html 😉

License

Copyright 2014-present Rodrigo Fernandes. Released under the terms of the MIT license.

Thanks

This project is inspired in pretty-diff by Scott González.


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Package last updated on 17 Apr 2020

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