feat: support ignore/include modules

README.md

@@ -20,19 +20,22 @@ jobs:
     strategy:
       matrix:
         module: ${{ fromJson(needs.modules.outputs.modules) }}
+    defaults:
+      run:
+        working-directory: ${{ matrix.module }}
     steps:
       - uses: actions/checkout@v2
       - uses: hashicorp/setup-terraform@v1
       - run: terraform init
-        working-directory: ${{ matrix.module }}
       - run: terraform plan
-        working-directory: ${{ matrix.module }}
 ```
 
 ## Inputs
 
 - `token` (optional) GitHub token. Defaults to secrets.GITHUB_TOKEN.
 - `mode` (optional) Set to `all` to return all modules or `changed` to only return modules that have changes in this PR/commit. Defaults to `changed`.
+- `ignore` (optional) Comma-separated list of module paths to ignore.
+- `include` (optional) Comma-separated list of module paths to include. If set all other modules are ignored.
 
 ## Outputs
 

action.yml

@@ -10,6 +10,12 @@ inputs:
     description: Set to `all` to return all modules or `changed` to only return modules that have changes in this PR/commit. Defaults to `changed`.
     required: false
     default: changed
+  ignore:
+    description: Comma-separated list of module paths to ignore.
+    required: false
+  include:
+    description: Comma-separated list of module paths to include. If set all other modules are ignored.
+    required: false
 outputs:
   modules:
     description: An array of paths to Terraform modules.

src/main.ts

@@ -6,6 +6,8 @@ async function run(): Promise<void> {
   try {
     const token = core.getInput('token', { required: true })
     const mode = core.getInput('mode', { required: true })
+    const ignore = core.getInput('ignore')
+    const include = core.getInput('include')
 
     let modules: string[]
 
@@ -22,6 +24,16 @@ async function run(): Promise<void> {
         throw new Error(`Unknown mode: ${mode}`)
     }
 
+    if (ignore) {
+      const list = ignore.split(',').map((item) => item.trim())
+      modules = modules.filter((module) => !list.includes(module))
+    }
+
+    if (include) {
+      const list = include.split(',').map((item) => item.trim())
+      modules = modules.filter((module) => list.includes(module))
+    }
+
     if (modules.length) {
       core.debug(`Found modules:${modules.map((module) => `\n- ${module}`)}`)
     } else {