Usage
Diffing Files
$ difft sample_files/before.js sample_files/after.js
Diffing Directories
$ difft sample_files/dir_before/ sample_files/dir_after/
Difftastic will recursively walk the two directories, diffing files with the same name.
The --skip-unchanged
option is useful when diffing directories that
contain many unchanged files.
Language Detection
Difftastic guesses the language used based on the file extension, file name, and the contents of the first lines.
You can override the language detection by passing the --language
option. Difftastic will treat input files as if they had that
extension, and ignore other language detection heuristics.
$ difft --language cpp before.c after.c
Options
Difftastic includes a range of configuration CLI options, see difft --help
for the full list.
Difftastic can also be configured with environment variables. These
are also visible in --help
.
For example, DFT_BACKGROUND=light
is equivalent to
--background=light
. This is useful when using VCS tools like git,
where you are not invoking the difft
binary directly.