init commit

This commit establishes the baseline for an ERB linter that can be
used in Sublime Text 3. It extends Sublime Linter

LICENSE

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+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+SublimeLinter-contrib-erblint
+================================
+
+[![Build Status](https://travis-ci.org/TomasBarry/SublimeLinter-contrib-erblint.svg?branch=master)](https://travis-ci.org/TomasBarry/SublimeLinter-contrib-erblint)
+
+This linter plugin for [SublimeLinter](https://github.com/SublimeLinter/SublimeLinter) provides an interface to [erblint](https://github.com/Shopify/erb-lint). It will be used with files that have the “erb” syntax.
+
+## Installation
+SublimeLinter must be installed in order to use this plugin.
+
+Please use [Package Control](https://packagecontrol.io) to install the linter plugin.
+
+Before installing this plugin, you must ensure that `erblint` is installed on your system.
+
+1. Install [Ruby](http://ruby-lang.org).
+
+1. Install `erblint` by typing the following in a terminal:
+   ```
+   [sudo] gem install erblint
+   ```
+
+1. If you are using `rvm` or `rbenv`, ensure that they are loaded in your shell’s correct startup file. See [here](http://sublimelinter.com/en/latest/troubleshooting.html#adjusting-shell-startup-files) for more information.
+
+In order for `erblint` to be executed by SublimeLinter, you must ensure that its path is available to SublimeLinter. The docs cover [troubleshooting PATH configuration](http://sublimelinter.readthedocs.io/en/latest/troubleshooting.html#finding-a-linter-executable).
+
+## Settings
+- SublimeLinter settings: http://sublimelinter.readthedocs.org/en/latest/settings.html
+- Linter settings: http://sublimelinter.readthedocs.org/en/latest/linter_settings.html

linter.py

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+from SublimeLinter.lint import util, Linter
+
+
+class ERBLint(Linter):
+    """A linter for Embedded Ruby files (.erb)
+
+    This class extends SublimeLinter.lint.Linter. It defines the most basic set
+    of configs for running the 'out of the box' version of `erblint`
+
+    An example output of `erblint ~/path/to/file.erb is:
+
+    ```
+    .erb-lint.yml not found: using default config
+    Linting 1 files with 12 linters...
+
+    ...
+
+    Tag `input` is self-closing, it must end with `/>`.
+    In file: path/to/file.html.erb:123
+
+    ...
+
+    12 error(s) were found in ERB files
+    ```
+
+    The regex defined below matches the error output from `erblint`. In order to
+    ignore the extra warning (when not passing a config file to `erblint`) we
+    set `error_stream` to `util.STREAM_STDOUT`.
+    """
+    cmd = 'erblint ${args} ${temp_file}'
+    regex = (
+        r'^(?P<message>.*)\n'
+        r'In file: .*:(?P<line>[0-9]+)'
+    )
+    multiline = True
+    tempfile_suffix = 'erb'
+    error_stream = util.STREAM_STDOUT
+    defaults = {
+        'selector': 'text.html.ruby'
+    }

messages.json

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+{
+    "install": "messages/install.txt"
+}

messages/install.txt

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+SublimeLinter-contrib-erblint
+-------------------------------
+This linter plugin for SublimeLinter provides an interface to erblint.
+
+For more information, please see:
+https://github.com/TomasBarry/SublimeLinter-contrib-erblint