Add 'fail_on_unmatched_files' input

README.md

@@ -172,15 +172,16 @@ jobs:
 
 The following are optional as `step.with` keys
 
-| Name        | Type    | Description                                                     |
-|-------------|---------|-----------------------------------------------------------------|
-| `body`      | String  | Text communicating notable changes in this release              |
-| `body_path` | String  | Path to load text communicating notable changes in this release |
-| `draft`     | Boolean | Indicator of whether or not this release is a draft             |
-| `prerelease`| Boolean | Indicator of whether or not is a prerelease                     |
-| `files`     | String  | Newline-delimited globs of paths to assets to upload for release|
-| `name`      | String  | Name of the release. defaults to tag name                       |
-| `tag_name`  | String  | Name of a tag. defaults to `github.ref`                         |
+| Name                      | Type    | Description                                                           |
+|---------------------------|---------|-----------------------------------------------------------------------|
+| `body`                    | String  | Text communicating notable changes in this release                    |
+| `body_path`               | String  | Path to load text communicating notable changes in this release       |
+| `draft`                   | Boolean | Indicator of whether or not this release is a draft                   |
+| `prerelease`              | Boolean | Indicator of whether or not is a prerelease                           |
+| `files`                   | String  | Newline-delimited globs of paths to assets to upload for release      |
+| `name`                    | String  | Name of the release. defaults to tag name                             |
+| `tag_name`                | String  | Name of a tag. defaults to `github.ref`                               |
+| `fail_on_unmatched_files` | Boolean | Indicator of whether to fail if any of the `files` globs match nothing|
 
 💡When providing a `body` and `body_path` at the same time, `body_path` will be attempted first, then falling back on `body` if the path can not be read from.
 

__tests__/util.test.ts

@@ -3,7 +3,8 @@ import {
   isTag,
   paths,
   parseConfig,
-  parseInputFiles
+  parseInputFiles,
+  unmatchedPatterns
 } from "../src/util";
 import * as assert from "assert";
 
@@ -87,7 +88,8 @@ describe("util", () => {
         input_prerelease: false,
         input_files: [],
         input_name: undefined,
-        input_tag_name: undefined
+        input_tag_name: undefined,
+        input_fail_on_unmatched_files: false
       });
     });
   });
@@ -102,9 +104,19 @@ describe("util", () => {
 
   describe("paths", () => {
     it("resolves files given a set of paths", async () => {
-      assert.deepStrictEqual(paths(["tests/data/**/*"]), [
-        "tests/data/foo/bar.txt"
-      ]);
+      assert.deepStrictEqual(
+        paths(["tests/data/**/*", "tests/data/does/not/exist/*"]),
+        ["tests/data/foo/bar.txt"]
+      );
+    });
+  });
+
+  describe("unmatchedPatterns", () => {
+    it("returns the patterns that don't match any files", async () => {
+      assert.deepStrictEqual(
+        unmatchedPatterns(["tests/data/**/*", "tests/data/does/not/exist/*"]),
+        ["tests/data/does/not/exist/*"]
+      );
     });
   });
 });

action.yml

@@ -24,6 +24,9 @@ inputs:
   files:
     description: 'Newline-delimited list of path globs for asset files to upload'
     required: false
+  fail_on_unmatched_files:
+    description: 'Fails if any of the `files` globs match nothing. Defaults to false'
+    required: false
 env:
   'GITHUB_TOKEN': 'As provided by Github Actions'
 outputs:

src/main.ts

@@ -1,4 +1,4 @@
-import { paths, parseConfig, isTag } from "./util";
+import { paths, parseConfig, isTag, unmatchedPatterns } from "./util";
 import { release, upload, GitHubReleaser } from "./github";
 import { setFailed, setOutput } from "@actions/core";
 import { GitHub } from "@actions/github";
@@ -10,6 +10,15 @@ async function run() {
     if (!config.input_tag_name && !isTag(config.github_ref)) {
       throw new Error(`⚠️ GitHub Releases requires a tag`);
     }
+    if (config.input_files) {
+      const patterns = unmatchedPatterns(config.input_files);
+      patterns.forEach(pattern =>
+        console.warn(`🤔 Pattern '${pattern}' does not match any files.`)
+      );
+      if (patterns.length > 0 && config.input_fail_on_unmatched_files) {
+        throw new Error(`⚠️ There were unmatched files`);
+      }
+    }
     GitHub.plugin([
       require("@octokit/plugin-throttling"),
       require("@octokit/plugin-retry")

src/util.ts

@@ -13,6 +13,7 @@ export interface Config {
   input_files?: string[];
   input_draft?: boolean;
   input_prerelease?: boolean;
+  input_fail_on_unmatched_files?: boolean;
 }
 
 export const releaseBody = (config: Config): string | undefined => {
@@ -47,7 +48,8 @@ export const parseConfig = (env: Env): Config => {
     input_body_path: env.INPUT_BODY_PATH,
     input_files: parseInputFiles(env.INPUT_FILES || ""),
     input_draft: env.INPUT_DRAFT === "true",
-    input_prerelease: env.INPUT_PRERELEASE == "true"
+    input_prerelease: env.INPUT_PRERELEASE == "true",
+    input_fail_on_unmatched_files: env.INPUT_FAIL_ON_UNMATCHED_FILES == "true"
   };
 };
 
@@ -59,6 +61,16 @@ export const paths = (patterns: string[]): string[] => {
   }, []);
 };
 
+export const unmatchedPatterns = (patterns: string[]): string[] => {
+  return patterns.reduce((acc: string[], pattern: string): string[] => {
+    return acc.concat(
+      glob.sync(pattern).filter(path => lstatSync(path).isFile()).length == 0
+        ? [pattern]
+        : []
+    );
+  }, []);
+};
+
 export const isTag = (ref: string): boolean => {
   return ref.startsWith("refs/tags/");
 };