docs: add working-directory to README

Add working-directory support

Fixes #15

.github/workflows/test.yml

@@ -23,4 +23,5 @@ jobs:
     - uses: ./
       with:
         version: v1.26
-        args: --issues-exit-code=0 ./sample/...
+        args: --issues-exit-code=0 ./...
+        working-directory: sample

README.md

@@ -27,15 +27,21 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v0.2.0
+        uses: golangci/golangci-lint-action@v1
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
           version: v1.26
+          
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
 
           # Optional: golangci-lint command line arguments.
-          # args: ./the-only-dir-to-analyze/...
+          # args: --issues-exit-code=0
 ```
 
+We recommend running this action in a job separate from other jobs (`go test`, etc)
+because different jobs [run in parallel](https://help.github.com/en/actions/getting-started-with-github-actions/core-concepts-for-github-actions#job).
+
 ## Comments and Annotations
 
 Currently, GitHub parses the action's output and creates [annotations](https://github.community/t5/GitHub-Actions/What-are-annotations/td-p/30770).

action.yml

@@ -1,6 +1,6 @@
 ---
 name: 'Run golangci-lint'
-description: 'Official golangci-lint action with line-attached annotations for found issues, caching and parallel execution. Beta version.'
+description: 'Official golangci-lint action with line-attached annotations for found issues, caching and parallel execution.'
 author: 'golangci'
 inputs:
   version:
@@ -10,9 +10,9 @@ inputs:
     description: 'golangci-lint command line arguments'
     default: ''
     required: false
-  github-token:
-    description: 'GitHub token with scope `repo.public_repo`. Used for fetching a list of releases of golangci-lint.'
-    required: true
+  working-directory:
+    description: 'golangci-lint working directory, default is project root'
+    required: false
 
 runs:
   using: 'node12'
@@ -20,4 +20,4 @@ runs:
   post: 'dist/post_run/index.js'
 branding:
   icon: 'shield'
-  color: 'yellow'
+  color: 'yellow'

dist/post_run/index.js

@@ -2352,6 +2352,8 @@ var __importStar = (this && this.__importStar) || function (mod) {
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
 const child_process_1 = __webpack_require__(129);
+const fs = __importStar(__webpack_require__(747));
+const path = __importStar(__webpack_require__(622));
 const util_1 = __webpack_require__(669);
 const cache_1 = __webpack_require__(722);
 const install_1 = __webpack_require__(655);
@@ -2396,11 +2398,19 @@ function runLint(lintPath) {
         if (args.includes(`-out-format`)) {
             throw new Error(`please, don't change out-format for golangci-lint: it can be broken in a future`);
         }
+        const workingDirectory = core.getInput(`working-directory`);
+        const cmdArgs = {};
+        if (workingDirectory != ``) {
+            if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
+                throw new Error(`working-directory (${workingDirectory}) was not a path`);
+            }
+            cmdArgs.cwd = path.resolve(workingDirectory);
+        }
         const cmd = `${lintPath} run --out-format=github-actions ${args}`.trimRight();
-        core.info(`Running [${cmd}] ...`);
+        core.info(`Running [${cmd}] in [${cmdArgs.cwd}] ...`);
         const startedAt = Date.now();
         try {
-            const res = yield execShellCommand(cmd);
+            const res = yield execShellCommand(cmd, cmdArgs);
             printOutput(res);
             core.info(`golangci-lint found no issues`);
         }

dist/run/index.js

@@ -2364,6 +2364,8 @@ var __importStar = (this && this.__importStar) || function (mod) {
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
 const child_process_1 = __webpack_require__(129);
+const fs = __importStar(__webpack_require__(747));
+const path = __importStar(__webpack_require__(622));
 const util_1 = __webpack_require__(669);
 const cache_1 = __webpack_require__(722);
 const install_1 = __webpack_require__(655);
@@ -2408,11 +2410,19 @@ function runLint(lintPath) {
         if (args.includes(`-out-format`)) {
             throw new Error(`please, don't change out-format for golangci-lint: it can be broken in a future`);
         }
+        const workingDirectory = core.getInput(`working-directory`);
+        const cmdArgs = {};
+        if (workingDirectory != ``) {
+            if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
+                throw new Error(`working-directory (${workingDirectory}) was not a path`);
+            }
+            cmdArgs.cwd = path.resolve(workingDirectory);
+        }
         const cmd = `${lintPath} run --out-format=github-actions ${args}`.trimRight();
-        core.info(`Running [${cmd}] ...`);
+        core.info(`Running [${cmd}] in [${cmdArgs.cwd}] ...`);
         const startedAt = Date.now();
         try {
-            const res = yield execShellCommand(cmd);
+            const res = yield execShellCommand(cmd, cmdArgs);
             printOutput(res);
             core.info(`golangci-lint found no issues`);
         }

src/run.ts

@@ -1,5 +1,7 @@
 import * as core from "@actions/core"
-import { exec } from "child_process"
+import { exec, ExecOptions } from "child_process"
+import * as fs from "fs"
+import * as path from "path"
 import { promisify } from "util"
 
 import { restoreCache, saveCache } from "./cache"
@@ -55,11 +57,21 @@ async function runLint(lintPath: string): Promise<void> {
     throw new Error(`please, don't change out-format for golangci-lint: it can be broken in a future`)
   }
 
+  const workingDirectory = core.getInput(`working-directory`)
+  const cmdArgs: ExecOptions = {}
+  if (workingDirectory != ``) {
+    if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
+      throw new Error(`working-directory (${workingDirectory}) was not a path`)
+    }
+
+    cmdArgs.cwd = path.resolve(workingDirectory)
+  }
+
   const cmd = `${lintPath} run --out-format=github-actions ${args}`.trimRight()
-  core.info(`Running [${cmd}] ...`)
+  core.info(`Running [${cmd}] in [${cmdArgs.cwd}] ...`)
   const startedAt = Date.now()
   try {
-    const res = await execShellCommand(cmd)
+    const res = await execShellCommand(cmd, cmdArgs)
     printOutput(res)
     core.info(`golangci-lint found no issues`)
   } catch (exc) {