Download the PHP package automattic/eslint-changed without Composer
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Informations about the package eslint-changed
ESLint Changed
Run ESLint on files and only report new warnings and errors.
Installation
Install via your favorite JS package manager. Note the peer dependency on eslint.
For example,
Usage
To identify the changes, eslint-changed needs the ESLint output for both the old and new versions of the file, as well as the diff between them.
If you use git, it can determine this automatically. Otherwise, you can supply the necessary information manually.
Options used in both modes are:
--debug: Enable debug output.--ext <list>: Comma-separated list of JavaScript file extensions. Ignored if files are listed. (default: ".js")--format <name>: ESLint format to use for output. (default: "stylish")--in-diff-only: Only include messages on lines changed in the diff. This may miss things like deleting avarthat leads to a newno-undefelsewhere.
Manual diff
The following options are used with manual mode:
--diff <file>: A file containing the unified diff of the changes.--diff-base <dir>: Base directory the diff is relative to. Defaults to the current directory.--eslint-orig <file>: A file containing the JSON output of eslint on the unchanged files.--eslint-new <file>: A file containing the JSON output of eslint on the changed files.
With git
In git mode, eslint-changed needs to be able to run git. If this is not available by that name in the shell path,
set environment variable GIT as appropriate.
The following options are used with manual mode:
--git: Signify that you're using git mode.--git-staged: Compare the staged version to the HEAD version (this is the default).--git-unstaged: Compare the working copy version to the staged (or HEAD) version.--git-base <ref>: Compare the HEAD version to the HEAD of a different base (e.g. branch).
Examples
This will compare the staged changes with HEAD.
This will compare HEAD with origin/trunk.
This does much the same as the previous example, but manually. If you're using something other than git, you might do something like this.
Note that, to be exactly the same as the above, you'd want to extract the list of files from the diff instead of linting everything. But this will work.
Inspiration
We had been using phpcs-changed for a while, and wanted the same thing for ESLint.
