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README.md

Build Status Maven Central Apache 2.0

diff-to-html

Displays diffs in a convenient html page.

  • Useful when dealing with large validation text files or directory structures in automated builds, e.g. on Jenkins.
  • Collapsible diff sections for each file make the result easy to read when comparing directories
  • Inline-diff (character-wise) helps you to easily identify changes (optionally line-wise)
  • Pure Java solution
Example outputs:

cronn-diff-to-html_outputExample3 cronn-diff-to-html_outputExample2

Usage

Install:

$ ./gradlew installDist

To compare two directories (or files), e.g. dir1 and dir2, use the fat jar

$ java -jar build/libs/diff-to-html-1.1.jar dir1 dir2

or the start script

$ ./build/install/diff-to-html/scripts/diff-to-html dir1 dir2

which will give you something like

Output written to: file:///home/maurice/Git-Projects/openSource/diff-to-html/diff_dir1_dir2.html

Directories differ!

Call without arguments for help

$ java -jar build/libs/diff-to-html-1.4.jar -h
usage: cronn-diff-to-html <input_left> <input_right> [<output_html>]  [-h]
       [-w] [-b] [-crlf] [-or] [-iu] [-de] [-u <arg>] [-fs <arg>] [-id]
 -h,--help                     print this help
 -w,--ignore-white-spaces      ignore all white spaces
 -b,--ignore-space-change      ignore changes in the amount of white space
 -crlf,--ignore-line-endings   ignore line endings, i.e. normalize CRLF /
                               LF while comparing files
 -or,--only-reports            always exits with zero
 -iu,--ignore-unique           ignore unique files
 -de,--detect-encoding         tries to determine encoding type
 -u,--unified <arg>            output <arg> (default 3) lines of unified
                               context
 -fs,--max-size-diff <arg>     no textual diff if file size differs too
                               much
 -id,--line-diff               generate line-wise diffs (default: inline /
                               character-wise)

Generate your tar (or zip) to take wherever you want

$ ./gradlew distTar distZip
$ ls build/distributions/
diff-to-html-1.1.tar  diff-to-html-1.1.zip

Prerequisites

  • Java 8

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