Dependencies and improvements (#11)

.eslintignore

@@ -0,0 +1 @@
+/dist

.eslintrc.json

@@ -0,0 +1,27 @@
+{
+  "env": {
+    "node": true,
+    "commonjs": true,
+    "es2021": true
+  },
+  "extends": "eslint:recommended",
+  "rules": {
+    "indent": [
+      "error",
+      2
+    ],
+    "linebreak-style": [
+      "error",
+      "unix"
+    ],
+    "max-len": "off",
+    "quotes": [
+      "error",
+      "single"
+    ],
+    "semi": [
+      "error",
+      "always"
+    ]
+  }
+}

.github/workflows/ci.yaml

@@ -0,0 +1,52 @@
+---
+name: Continuous Integration
+
+on:
+  pull_request:
+
+jobs:
+  code-style:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set Node.js version
+      uses: actions/setup-node@v2
+      with:
+        node-version: 16
+
+    - name: Install dependencies
+      run: npm clean-install
+
+    - name: Run code style test
+      run: npm run lint
+
+  check-dist:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set Node.js version
+      uses: actions/setup-node@v2
+      with:
+        node-version: 16
+
+    - name: Install dependencies
+      run: npm clean-install
+
+    - name: Rebuild the dist/ directory
+      run: npm run build
+
+    - name: Compare the expected and actual dist/ directories
+      run: |
+        git diff --quiet --ignore-space-at-eol dist/ && exit 0
+        echo "Detected uncommitted changes after build.  See status below:"
+        git diff --exit-code dist/
+      id: diff
+
+    # If index.js was different than expected, upload the expected version as an artifact
+    #- uses: actions/upload-artifact@v2
+    #  if: ${{ failure() && steps.diff.conclusion == 'failure' }}
+    #  with:
+    #    name: dist
+    #    path: dist/

Dockerfile

@@ -0,0 +1,3 @@
+FROM node:16
+COPY dist dist
+ENTRYPOINT [ "node", "/dist/index.js" ]

README.md

@@ -0,0 +1,55 @@
+# Terraform
+
+[GitHub Action](https://github.com/features/actions) to automate Terraform workflows.
+
+## Usage
+
+```yaml
+- uses: Pararius/action-terraform@0.0.9
+  name: Terraform
+  with:
+    # Google credentials, required for accessing state bucket
+    google_credentials: ''
+
+    # Location of terraform manifests, relative to the current working directory
+    # Default: ./
+    terraform_directory: ''
+
+    # Whether to run `terraform apply` as last step
+    # Default: 'false'
+    terraform_do_apply: ''
+
+    # Whether to (try to) lock the state during plan/apply. Reccommended when
+    # terraform_do_apply is set to 'true'
+    # Default: 'false'
+    terraform_lock: ''
+
+    # Limit the number of concurrent operations during plan/apply
+    # Default: '10'
+    terraform_parallelism: ''
+```
+
+## Example
+
+### Only run terraform plan, without locking the workspace
+
+```yaml
+- uses: Pararius/action-terraform@0.0.9
+  name: Terraform
+  with:
+    google_credentials: ${{ secrets.YOUR_SECRET }}
+    terraform_directory: ./terraform/
+    terraform_do_apply: false
+```
+
+### Also run terraform apply, locking the workspace
+
+```yaml
+- uses: Pararius/action-terraform@0.0.9
+  name: Terraform
+  with:
+    google_credentials: ${{ secrets.YOUR_SECRET }}
+    terraform_directory: ./terraform/
+    terraform_do_apply: true
+    terraform_lock: true
+```

action.yaml

@@ -22,5 +22,7 @@ inputs:
     description: Limit the number of concurrent operations during plan/apply
     default: '10'
 runs:
-  using: node12
-  main: dist/index.js
+  # node16 not available
+  # https://github.com/actions/runner/issues/772
+  using: docker
+  image: Dockerfile

dist/index.js

@@ -5203,32 +5203,36 @@ const core = __nccwpck_require__(186);
 const tc = __nccwpck_require__(784);
 const exec = __nccwpck_require__(514);
 const fs = __nccwpck_require__(747);
+const path = __nccwpck_require__(622);
 
 const status_skipped = '﹣';
-const status_success = '✓'
+const status_success = '✓';
 const status_failed = '✕';
 
+const tfswitchPath = `${process.env['HOME']}/tfswitch`;
+const terraformPath = `${process.env['HOME']}/terraform`;
+
 async function shell(command, args, options = {}) {
   options.env = {
     ...process.env,
     ...options.env,
     GOOGLE_APPLICATION_CREDENTIALS: `${process.env['HOME']}/gcloud.json`,
-  }
+  };
   options.listeners = {
     ...options.listeners,
-    debug: (data) => { core.debug(data.toString()) }
-  }
+    debug: (data) => { core.debug(data.toString()); },
+  };
 
   const result = await exec.getExecOutput(command, args, options);
   return {
     status: result.exitCode,
     stderr: result.stderr,
     stdout: result.stdout,
-  }
+  };
 }
 
 async function terraform(args) {
-  return await shell(`${process.env['HOME']}/terraform`, args, {
+  return await shell(terraformPath, args, {
     cwd: core.getInput('terraform_directory'),
   });
 }
@@ -5258,17 +5262,16 @@ async function terraform(args) {
   core.endGroup();
 
   core.startGroup('Configure Google Cloud credentials');
-  fs.writeFileSync(`${process.env['HOME']}/gcloud.json`, core.getInput('google_credentials'))
+  fs.writeFileSync(`${process.env['HOME']}/gcloud.json`, core.getInput('google_credentials'));
   core.endGroup();
 
   core.startGroup('Setup Terraform CLI');
   core.info(`Working directory: ${terraformDirectory}`);
   core.info('Installing tfswitch:');
   const tfsPath = await tc.downloadTool('https://raw.githubusercontent.com/warrensbox/terraform-switcher/release/install.sh');
-  await shell('chmod', ['+x', tfsPath]);
-  await shell(tfsPath, ['-b', `${process.env['HOME']}/`]);
+  await shell('sh', [tfsPath, '-b', path.dirname(tfswitchPath)]);
   core.info('Running tfswitch:');
-  const tfs = await shell(`${process.env['HOME']}/tfswitch`, ['-b', `${process.env['HOME']}/terraform`], {
+  const tfs = await shell(tfswitchPath, ['-b', terraformPath], {
     cwd: terraformDirectory,
   });
   core.endGroup();
@@ -5340,10 +5343,10 @@ async function terraform(args) {
   }
   core.info('');
   core.info(`Version: ${tf_version}`);
-  core.info(`Initialization: ${tf_init}`)
-  core.info(`Formatting: ${tf_fmt}`)
-  core.info(`Plan: ${tf_plan}`)
-  core.info(`Apply: ${tf_apply}`)
+  core.info(`Initialization: ${tf_init}`);
+  core.info(`Formatting: ${tf_fmt}`);
+  core.info(`Plan: ${tf_plan}`);
+  core.info(`Apply: ${tf_apply}`);
 })().catch(error => {
   core.setFailed(error.message);
 });

index.js

@@ -2,32 +2,36 @@ const core = require('@actions/core');
 const tc = require('@actions/tool-cache');
 const exec = require('@actions/exec');
 const fs = require('fs');
+const path = require('path');
 
 const status_skipped = '﹣';
-const status_success = '✓'
+const status_success = '✓';
 const status_failed = '✕';
 
+const tfswitchPath = `${process.env['HOME']}/tfswitch`;
+const terraformPath = `${process.env['HOME']}/terraform`;
+
 async function shell(command, args, options = {}) {
   options.env = {
     ...process.env,
     ...options.env,
     GOOGLE_APPLICATION_CREDENTIALS: `${process.env['HOME']}/gcloud.json`,
-  }
+  };
   options.listeners = {
     ...options.listeners,
-    debug: (data) => { core.debug(data.toString()) }
-  }
+    debug: (data) => { core.debug(data.toString()); },
+  };
 
   const result = await exec.getExecOutput(command, args, options);
   return {
     status: result.exitCode,
     stderr: result.stderr,
     stdout: result.stdout,
-  }
+  };
 }
 
 async function terraform(args) {
-  return await shell(`${process.env['HOME']}/terraform`, args, {
+  return await shell(terraformPath, args, {
     cwd: core.getInput('terraform_directory'),
   });
 }
@@ -57,17 +61,16 @@ async function terraform(args) {
   core.endGroup();
 
   core.startGroup('Configure Google Cloud credentials');
-  fs.writeFileSync(`${process.env['HOME']}/gcloud.json`, core.getInput('google_credentials'))
+  fs.writeFileSync(`${process.env['HOME']}/gcloud.json`, core.getInput('google_credentials'));
   core.endGroup();
 
   core.startGroup('Setup Terraform CLI');
   core.info(`Working directory: ${terraformDirectory}`);
   core.info('Installing tfswitch:');
   const tfsPath = await tc.downloadTool('https://raw.githubusercontent.com/warrensbox/terraform-switcher/release/install.sh');
-  await shell('chmod', ['+x', tfsPath]);
-  await shell(tfsPath, ['-b', `${process.env['HOME']}/`]);
+  await shell('sh', [tfsPath, '-b', path.dirname(tfswitchPath)]);
   core.info('Running tfswitch:');
-  const tfs = await shell(`${process.env['HOME']}/tfswitch`, ['-b', `${process.env['HOME']}/terraform`], {
+  const tfs = await shell(tfswitchPath, ['-b', terraformPath], {
     cwd: terraformDirectory,
   });
   core.endGroup();
@@ -139,10 +142,10 @@ async function terraform(args) {
   }
   core.info('');
   core.info(`Version: ${tf_version}`);
-  core.info(`Initialization: ${tf_init}`)
-  core.info(`Formatting: ${tf_fmt}`)
-  core.info(`Plan: ${tf_plan}`)
-  core.info(`Apply: ${tf_apply}`)
+  core.info(`Initialization: ${tf_init}`);
+  core.info(`Formatting: ${tf_fmt}`);
+  core.info(`Plan: ${tf_plan}`);
+  core.info(`Apply: ${tf_apply}`);
 })().catch(error => {
   core.setFailed(error.message);
 });