leasot

Parse and output TODOs and FIXMEs from comments in your files

Easily extract, collect and report TODOs and FIXMEs in your code. This project uses regex in order to extract your todos from comments.

Comment format

TODO: add some info

• Spaces are optional.
• Colon is optional.
• Must be in a comment (line or block) in its' own line (some code(); //TODO: do something is not supported).
• Can be prefixed with a @ (i.e @TODO).
• Spaces are trimmed around comment text.
• Supported default types are TODO and FIXME - case insensitive.
• Additional types can be added (using tags in cli and customTags in leasot.parse)

Supported languages:

Filetype	Extension	Notes
C#	.cs	Supports // and /* */ comments.
C++/C	.cpp .c .h	Supports // and /* */ comments.
Coffee-React	.cjsx	Supports # comments.
Coffeescript	.coffee	Supports # comments.
CSS	.css	Supports /* */ comments.
Erlang	.erl	Supports % comments.
Go	.go	Supports // and /* */ comments.
Handlebars	.hbs .handlebars	Supports {{! }} and {{!-- --}}
Haskell	.hs	Supports --
Hogan	.hgn .hogan	Supports {{! }} and {{!-- --}}
HTML	.html .htm	Supports <!-- -->
EJS	.ejs	Supports <!-- --> and <%# %>
Jade	.jade	Supports // and //- comments.
Javascript	.js	Supports // and /* */ comments
Jsx	.jsx	Supports // and /* */ comments.
Less	.less	Supports // and /* */ comments.
Mustache	.mustache	Supports {{! }} and {{!-- --}}
Perl	.pl, .pm	Supports # comments.
PHP	.php	Supports // and /* */ comments.
Python	.py	Supports """ and # comments.
Ruby	.rb	Supports # comments.
Sass	.sass .scss	Supports // and /* */ comments.
Shell	.sh .zsh .bash	Supports # comments.
Stylus	.styl	Supports // and /* */ comments.
Twig	.twig	Supports {# #} and <!-- -->
Typescript	.ts	Supports // and /* */ comments.

Javascript is the default parser.

PRs for additional filetypes is most welcomed!!

Usage

Command Line

Installation

$ npm install --global leasot

Examples

❯ leasot --help

  Usage: leasot [options] <file ...>

  Parse and output TODOs and FIXMEs from comments in your files

  Options:

    -h, --help                 output usage information
    -V, --version              output the version number
    -r, --reporter [reporter]  use reporter (table|json|xml|markdown|raw) (default: table)
    -t, --filetype [filetype]  force the filetype to parse. Useful for streams (default: .js)
    -T, --tags <tags>          add additional comment types to find (alongside todo & fixme)
    -S, --skip-unsupported     skip unsupported filetypes

  Examples:

    # Check a specific file
    $ leasot index.js

    # Check php files with glob
    $ leasot **/*.php

    # Check multiple different filetypes
    $ leasot app/**/*.js test.rb

    # Use the json reporter
    $ leasot --reporter json index.js

    # Search for REVIEW comments as well
    $ leasot --tags review index.js

    # Export TODOS as markdown to a TODO.md file
    $ leasot --reporter markdown app/**/*.py > TODO.md

    # Check a stream specifying the filetype as coffee
    $ cat index.coffee | leasot --filetype .coffee

Programmatic

Installation

$ npm install --save-dev leasot

Examples

var fs = require('fs');
var leasot = require('leasot');

var contents = fs.readFileSync('./contents.js', 'utf8');
// get the filetype of the file, or force a special parser
var filetype = path.extname('./contents.js');
// add file for better reporting
var file = 'contents.js';
var todos = leasot.parse(filetype, contents, file);

// -> todos now contains the array of todos/fixme parsed

var output = leasot.reporter(todos, {
    reporter: 'json',
    spacing: 2
});

console.log(output);
// -> json output of the todos

Build Time

• gulp-todo
• broccoli-leasot

API

var leasot = require('leasot');

leasot exposes the following API:

.isExtSupported(extension)

Check whether extension is supported by parser.

Specify an extension including the prefixing dot, for example:

leasot.isExtSupported('.js'); //-> true

Returns: Boolean

.parse(extension, contents, filename, customTags)

Parse the contents, using the provided extension. filename will be attached to the return object, so it is recommended to use it if you know it.

extension is the extension to parse as, including a prefixing dot.

contents is a string containing the contents to parse.

filename is an optional string.

customTags is an optional array with additional tags (comment types) to search for (alongside todo & fixme).

Returns: Array of comments.

[{
    file: 'parsedFile.js',
    text: 'comment text',
    kind: 'TODO',
    line: 8
}]

.reporter(comments, config)

Use the specified reporter to report the comments.

comments is the array of comments received from leasot.parse().

config is an object that will also be passed to the reporter itself (allowing custom options for each reporter).

It may also contain the specified reporter:

config.reporter

Can be a string indicating the built-in reporter to use, or an external library used as a reporter.

Could also be a custom function (comments, config)

Type: String|Function

Required: false

Default: raw

Built-in Reporters

• json
• xml
• raw
• table
• markdown

Each reporter might contain config params that are useful only for that reporter:

Markdown

Returns a markdown version of the todos.

Options

newLine

How to separate lines in the output file. Defaults to your OS's default line separator.

Type: String

Default: Your system default line feed

padding

How many newLines should separate between comment type blocks.

Type: Number

Default: 2

Minimum: 0

transformHeader(kind)

Control the output of a header for each comment kind (i.e todo, fixme).

Type: Function

Default:

transformHeader: function (kind) {
    return ['### ' + kind + 's',
        '| Filename | line # | ' + kind,
        '|:------|:------:|:------'
    ];
}

kind: will be be passed as the comment kind (todo/fixme).

Returns: String[]|String

You are expected to return either an Array of strings or just a string. If you return an array - each item will be separated by a newline in the output.

transformComment(file, line, text, kind)

Control the output for each comment.

Type: Function

Default:

transformComment: function (file, line, text, kind) {
    return ['| ' + file + ' | ' + line + ' | ' + text];
},

file: filename the comment was in.

line: line of comment.

text: comment text

kind: will be be passed as the comment kind (todo/fixme).

Returns: String[]|String

You are expected to return either an Array of strings or just a string. If you return an array - each item will be separated by a newline in the output.

Table

Returns a pretty formatted table of the todos.

Raw

Just returns the raw javascript todos

JSON

Return a JSON valid representation of the todos.

Options

spacing

Type: Number

Default: 2

XML

Return an unformatted XML valid representation of the todos.

Parsed using json2xml

Options

header

Whether to include xml header

Type: Boolean

Default: true

attributes_key

See https://github.com/estheban/node-json2xml#options--behaviour

Type: Boolean

Default: undefined

License

MIT ©Gilad Peleg