first commit

.gitignore

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+.idea
+.git
+.DS_Store

Dockerfile

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+FROM exelban/baseimage:node-latest
+
+LABEL name="stylelint" \
+      version="1.0.0" \
+      repository="https://github.com/exelban/stylelint" \
+      homepage="https://github.com/exelban/stylelint" \
+      maintainer="Serhiy Mytrovtsiy <mitrovtsiy@ukr.net>" \
+      com.github.actions.name="stylelint" \
+      com.github.actions.description="GitHub Action that runs stylelint." \
+      com.github.actions.icon="layout" \
+      com.github.actions.color="black"
+
+COPY README.md /
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

README.md

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+# stylelint
+GitHub Action that runs [stylelint](https://stylelint.io).
+
+## Usage
+
+```yaml
+- uses: exelban/stylelint@master
+```
+
+### Default values
+#### Configuration file
+Action will check if stylelint is already installed. If not, it will install styleling.
+Also its check if configuration file is exist (`.stylelintrc`).
+
+By default action use next configuration:
+```json
+{
+  "extends": "stylelint-config-standard",
+  "rules": {
+    "indentation": 2
+  }
+}
+```
+
+#### Pattern
+If pattern is not provided, action will use default one: `*.css`.
+```yaml
+- uses: exelban/stylelint@master
+  with:
+    args: ./**/*.scss
+```
+
+#### Indentation
+Indentation can be set by environment variable `INDENT_SPACES`.
+
+```yaml
+- uses: exelban/stylelint@master
+  env:
+    INDENT_SPACES: 4
+```
+
+## License
+[MIT License](https://github.com/exelban/stylelint/blob/master/LICENSE)

entrypoint.sh

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+#!/bin/sh
+
+set -e
+
+stylelint_path="node_modules/.bin/stylelint"
+indent_spaces=2
+
+if [ ! -e stylelint_path ]; then
+    yarn add stylelint stylelint-config-standard --silent
+fi
+
+if [ ! -e "./.stylelintrc" ]; then
+    if [ -z "${INDENT_SPACES-}" ]; then
+       indent_spaces=$INDENT_SPACES
+    fi
+
+    echo "{
+  \"extends\": \"stylelint-config-standard\",
+  \"rules\": {
+    \"indentation\": "$indent_spaces"
+  }
+}" > .stylelintrc
+fi
+
+if [ -z "$*" ]; then
+    pattern="./*.css"
+else
+    pattern="$*"
+fi
+
+sh -c "$stylelint_path $pattern"