rtfpessoa / Diff2html Cli
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diff2html-cli
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-lineandside-by-sidediff -
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]
| flag | alias | description | choices | default |
|---|---|---|---|---|
| -s | --style | Output style |
line, side
|
line |
| --sc | --synchronisedScroll | Synchronised horizontal scroll |
true, false
|
true |
| --hc | --highlightCode | Highlight code |
true, false
|
true |
| --su | --summary | Show files summary |
closed, open, hidden
|
closed |
| -d | --diffStyle | Diff style |
word, char
|
word |
| --lm | --matching | Diff line matching type |
lines, words, none
|
none |
| --lmt | --matchWordsThreshold | Diff line matching word threshold | 0.25 |
|
| --lmm | --matchingMaxComparisons | Diff line matching maximum line comparisons of a block of changes | 2500 |
|
| --hwt | --htmlWrapperTemplate | Path to custom template to be rendered when using the html output format |
[string] |
|
| -f | --format | Output format |
html, json
|
html |
| -i | --input | Diff input source |
file, command, stdin
|
command |
| -o | --output | Output destination |
preview, stdout
|
preview |
| -u | --diffy | Upload to diffy.org |
browser, pbcopy, print
|
|
| -F | --file | Send output to file (overrides output option) | [string] |
|
| --ig | --ignore | Ignore particular files from the diff | [string] |
|
| -v | --version | Show version number | ||
| -h | --help | Show help |
Exit Status Codes
- 🎉 0: Success
- 😵 1: Generic Error
- 😰 3: Input diff is empty
- 👮 4: Value of
--hwt | --htmlWrapperTemplateis 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.jsonandyarn.lockfrom 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.