feat: set-env action

BREAKING:
First major release

.editorconfig

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+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 140
+
+[*.md]
+trim_trailing_whitespace = false

.github/workflows/build.yml

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+name: "build"
+
+on: [pull_request]
+
+jobs:
+  validation:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: "Config"
+        run: |
+          git config --global user.email "git-ci@techinity.com"
+          git config --global user.name "gitci"
+
+      - name: "Install dependencies"
+        run: npm install
+
+      - name: "Build"
+        run: npm run build
+
+      - name: "Test"
+        run: npm run test
+
+      - name: "Lint"
+        run: npm run lint
+
+      - name: "Commit build output"
+        run: |
+          git checkout -B "dist/artifacts-${{github.event.number}}"
+          git reset ${{github.event.after}}
+          git add -f dist/
+          git commit -m "ci: build distributables"
+          git push -f https://${{secrets.GH_ACTION_TOKEN}}@github.com/allenevans/set-env.git HEAD:dist/artifacts-${{github.event.number}}
+
+      - name: "Check for uncommitted changes"
+        run: |
+          git diff --exit-code --stat -- . ':!node_modules' \
+          || (echo "##[error] found changed filces after build." \
+              && exit 1)

.github/workflows/release.yml

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+name: "release"
+on:
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  validation:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: "Config"
+        run: |
+          echo "Release triggered by ${{github.actor}}"
+          echo "Commit ${{github.event.commits[0].message}}"
+          git config --global user.email "git-ci@techinity.com"
+          git config --global user.name "gitci"
+
+      - name: "Install dependencies"
+        run: npm install
+
+      - name: "Build"
+        run: npm run build
+
+      - name: "Test"
+        run: npm run test
+
+      - name: "Commit build artifacts"
+        if: |
+          contains(github.event.commits[0].message, '[skip ci]') == false &&
+          contains(github.event.commits[0].message, 'release artifacts') == false
+        run: |
+          git add --ignore-errors -f dist/
+          git diff-index --quiet HEAD -- || git commit -m 'release artifacts'
+
+      - name: "Semantic version"
+        if: |
+          contains(github.event.commits[0].message, '[skip ci]') == false &&
+          contains(github.event.commits[0].message, 'release artifacts') == false
+        env:
+          GH_TOKEN: ${{secrets.GITHUB_ACTION_TOKEN}}
+        run: |
+          npm run release
+          git status

.gitignore

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+package-lock.json
+
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# Dependency directories
+node_modules/
+
+# Optional REPL history
+.node_repl_history
+
+# Output
+dist/
+*.tgz

.npmrc

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+package-lock=false
+save-exact

.prettierrc

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+{
+  "arrowParens": "always",
+  "jsxBracketSameLine": false,
+  "parser": "typescript",
+  "printWidth": 140,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "useTabs": false
+}

.releaserc

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+{
+  "branch": "master",
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    "@semantic-release/changelog",
+    "@semantic-release/npm",
+    "@semantic-release/git"
+  ]
+}

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2019 Allen Evans
+
+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

@@ -1,2 +1,27 @@
 # set-env
 Github action to set environment variables
+
+Example usage:-
+
+```
+name: example-pipline
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      
+      - name: changed packages
+        id: changed_packages
+        uses: allenevans/set-env@master
+
+      - name: Dump steps context
+        env:
+          STEPS_CONTEXT: ${{ toJson(steps) }}
+        run: |
+          echo "$STEPS_CONTEXT"
+          echo "scope=${{steps.changed_packages.outputs.scope}}"
+```

action.yml

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+name: 'set-env'
+description: 'Set environment variables that can be used in other steps'
+author: 'Allen Evans'
+runs:
+  using: 'node12'
+  main: 'dist/set-env.js'

docs/contributors.md

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+# Contributors

jest.config.js

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+module.exports = {
+  collectCoverage: true,
+  moduleFileExtensions: ['ts', 'js', 'json', 'node'],
+  resetMocks: true,
+  testMatch: [
+    '**/?(*.)spec.ts',
+  ],
+  testPathIgnorePatterns: [
+    'dist/',
+    'node_modules/',
+  ],
+  testURL: 'http://localhost/',
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest',
+  },
+  verbose: true,
+};

package.json

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+{
+  "name": "set-env",
+  "version": "0.0.1",
+  "private": true,
+  "description": "Set environment variables that can be used in other steps",
+  "main": "dist/set-env.js",
+  "scripts": {
+    "build": "webpack --config ./webpack.config.js",
+    "clean": "rimraf dist/",
+    "lint": "tslint -c tslint.json --project tsconfig.json",
+    "prebuild": "npm run clean",
+    "release": "semantic-release",
+    "test": "jest --config=jest.config.js --silent"
+  },
+  "repository": {
+    "type": "git",
+    "url": "/~https://github.com/allenevans/set-env.git"
+  },
+  "keywords": [
+    "actions",
+    "node",
+    "setup"
+  ],
+  "author": "Allen Evans",
+  "license": "MIT",
+  "devDependencies": {
+    "@actions/core": "1.1.1",
+    "@semantic-release/changelog": "3.0.4",
+    "@semantic-release/commit-analyzer": "6.3.0",
+    "@semantic-release/git": "7.0.16",
+    "@semantic-release/npm": "5.1.15",
+    "@semantic-release/release-notes-generator": "7.3.0",
+    "@types/jest": "24.0.18",
+    "@types/node": "12.7.5",
+    "jest": "24.9.0",
+    "prettier": "1.18.2",
+    "rimraf": "3.0.0",
+    "semantic-release": "15.13.24",
+    "ts-jest": "24.1.0",
+    "ts-loader": "6.1.2",
+    "ts-node": "8.4.1",
+    "tslint": "5.20.0",
+    "tslint-config-airbnb": "5.11.2",
+    "typescript": "3.6.3",
+    "webpack": "4.40.2",
+    "webpack-cli": "3.3.9"
+  }
+}

src/main.spec.ts

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+import * as core from '@actions/core';
+
+jest.mock('@actions/core', () => ({
+  exportVariable: jest.fn(),
+  setFailed: jest.fn(),
+}));
+
+describe('set-env', () => {
+  afterEach(() => {
+    Object.keys(process.env)
+      .filter((key) => key.match(/^INPUT_/))
+      .forEach((key) => {
+        delete process.env[key];
+      });
+  });
+
+  it('should export all environment variables beginning with INPUT_', () => {
+    process.env.INPUT_VERSION = '1.2.3';
+
+    jest.isolateModules(() => require('./main'));
+
+    expect(core.exportVariable).toHaveBeenCalledTimes(1);
+    expect(core.exportVariable).toHaveBeenCalledWith('VERSION', '1.2.3');
+  });
+
+  it('should export multiple environment variables beginning with INPUT_', () => {
+    process.env.INPUT_A = '1';
+    process.env.INPUT_B = '2';
+    process.env.INPUT_C = '3';
+
+    jest.isolateModules(() => require('./main'));
+
+    expect(core.exportVariable).toHaveBeenCalledTimes(3);
+    expect(core.exportVariable).toHaveBeenCalledWith('A', '1');
+    expect(core.exportVariable).toHaveBeenCalledWith('B', '2');
+    expect(core.exportVariable).toHaveBeenCalledWith('C', '3');
+  });
+
+  it('should report exceptions', () => {
+    (<jest.Mock>core.exportVariable).mockImplementation(() => {
+      throw new Error('FAIL');
+    });
+    jest.spyOn(process, 'exit').mockImplementation((code?: number): never => {
+      throw new Error(`${code}`);
+    });
+
+    process.env.INPUT_TEST = 'test';
+
+    jest.isolateModules(() => expect(() => require('./main')).toThrowError('1'));
+
+    expect(core.setFailed).toHaveBeenCalledTimes(1);
+    expect(core.setFailed).toHaveBeenCalledWith('FAIL');
+  });
+});

src/main.ts

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+import * as core from '@actions/core';
+
+(function run() {
+  try {
+    Object.keys(process.env)
+      .filter((key) => /^INPUT_/.test(key))
+      .forEach((key) => {
+        core.exportVariable(key.replace(/^INPUT_/, ''), `${process.env[key]}`);
+      });
+  } catch (error) {
+    core.setFailed(error.message);
+    process.exit(1);
+  }
+})();