feat(dry-run): print publish results in dry run, even if publish woul…

…d be skipped

.github/workflows/ci-cd.yaml

@@ -187,6 +187,21 @@ jobs:
           echo "::error::Expected release type to be 'patch', got '${{ steps.action-publish.outputs.type }}'"
           exit 1
 
+      - id: action-publish-dry
+        name: Publish a dry run
+        uses: ./
+        with:
+          registry: http://localhost:4873
+          package: ${{ steps.setup.outputs.package }}/package.json
+          token: ${{ steps.setup.outputs.token }}
+          dry-run: true
+
+      - name: Check release output
+        if: ${{ steps.action-publish-dry.outputs.type != 'dry-run' }}
+        run: |
+          echo "::error::Expected release type to be 'dry-run', got '${{ steps.action-publish.outputs.type }}'"
+          exit 1
+
   deploy:
     if: ${{ github.ref == 'refs/heads/main' }}
     name: Publish

README.md

@@ -133,17 +133,17 @@ npm-publish exposes several output variables, which you can use in later steps o
 +     run: echo "Version changed!"
 ```
 
-| Name          | Type    | Description                                                                                                   |
-| ------------- | ------- | ------------------------------------------------------------------------------------------------------------- |
-| `id`          | string  | Package identifier of the release: `${name}@${version}` or empty if no release.                               |
-| `type`        | string  | [Semver release type][], `initial` if first release, `different` if other change, or empty if no release.     |
-| `name`        | string  | Name of the package.                                                                                          |
-| `version`     | string  | Version of the package.                                                                                       |
-| `old-version` | string  | Previously published version on `tag` or empty if no previous version on tag.                                 |
-| `tag`         | string  | [Distribution tag][npm-tag] the package was published to.                                                     |
-| `access`      | string  | [Access level][npm-access] the package was published with, or `default` if scoped-package defaults were used. |
-| `registry`    | string  | Registry the package was published to.                                                                        |
-| `dry-run`     | boolean | Whether `npm publish` was run in "dry run" mode.                                                              |
+| Name          | Type    | Description                                                                                                                                                  |
+| ------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `id`          | string  | Package identifier of the release: `${name}@${version}` or empty if no release.                                                                              |
+| `type`        | string  | [Semver release type][], `initial` if first release, `different` if other change, `dry-run` if no release would happen in a dry run, or empty if no release. |
+| `name`        | string  | Name of the package.                                                                                                                                         |
+| `version`     | string  | Version of the package.                                                                                                                                      |
+| `old-version` | string  | Previously published version on `tag` or empty if no previous version on tag.                                                                                |
+| `tag`         | string  | [Distribution tag][npm-tag] the package was published to.                                                                                                    |
+| `access`      | string  | [Access level][npm-access] the package was published with, or `default` if scoped-package defaults were used.                                                |
+| `registry`    | string  | Registry the package was published to.                                                                                                                       |
+| `dry-run`     | boolean | Whether `npm publish` was run in "dry run" mode.                                                                                                             |
 
 [semver release type]: https://github.com/npm/node-semver#release_types
 
@@ -199,17 +199,17 @@ The `npmPublish()` function returns a promise of a `Results` object. In TypeScri
 import type { Results } from "@jsdevtools/npm-publish";
 ```
 
-| Name         | Type            | Description                                                                                                     |
-| ------------ | --------------- | --------------------------------------------------------------------------------------------------------------- |
-| `id`         | Optional string | Package identifier of the release: `${name}@${version}` or `undefined` if no release.                           |
-| `type`       | Optional string | [Semver release type][], `initial` if first release, `different` if other change, or `undefined` if no release. |
-| `name`       | string          | Name of the package.                                                                                            |
-| `version`    | string          | Version of the package.                                                                                         |
-| `oldVersion` | Optional string | Previously published version on `tag` or `undefined` if no previous version.                                    |
-| `tag`        | string          | [Distribution tag][npm-tag] that the package was published to.                                                  |
-| `access`     | Optional string | [Access level][npm-access] the package was published with, or `undefined` if scoped-package defaults were used. |
-| `registry`   | `URL`           | Registry the package was published to.                                                                          |
-| `dryRun`     | boolean         | Whether `npm publish` was run in "dry run" mode.                                                                |
+| Name         | Type            | Description                                                                                                                                                        |
+| ------------ | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `id`         | Optional string | Package identifier of the release: `${name}@${version}` or `undefined` if no release.                                                                              |
+| `type`       | Optional string | [Semver release type][], `initial` if first release, `different` if other change, `dry-run` if no release would happen in a dry run, or `undefined` if no release. |
+| `name`       | string          | Name of the package.                                                                                                                                               |
+| `version`    | string          | Version of the package.                                                                                                                                            |
+| `oldVersion` | Optional string | Previously published version on `tag` or `undefined` if no previous version.                                                                                       |
+| `tag`        | string          | [Distribution tag][npm-tag] that the package was published to.                                                                                                     |
+| `access`     | Optional string | [Access level][npm-access] the package was published with, or `undefined` if scoped-package defaults were used.                                                    |
+| `registry`   | `URL`           | Registry the package was published to.                                                                                                                             |
+| `dryRun`     | boolean         | Whether `npm publish` was run in "dry run" mode.                                                                                                                   |
 
 ## Command Line Interface
 

src/__tests__/format-publish-result.test.ts

@@ -3,17 +3,20 @@ import { describe, it, expect } from "vitest";
 import * as subject from "../format-publish-result.js";
 import type { PackageManifest } from "../read-manifest.js";
 import type { NormalizedOptions } from "../normalize-options.js";
-import type { PublishResult } from "../compare-and-publish/index.js";
+import type {
+  PublishResult,
+  PublishFile,
+} from "../compare-and-publish/index.js";
 
 describe("formatPublishResult", () => {
   it("should say if a publish was skipped", () => {
     const result = subject.formatPublishResult(
       { name: "cool-package", version: "1.2.3" } as PackageManifest,
-      {} as NormalizedOptions,
-      { id: undefined } as PublishResult
+      { dryRun: { value: false } } as NormalizedOptions,
+      { id: undefined, files: [] as PublishFile[] } as PublishResult
     );
 
-    expect(result).toMatch(/cool-package@1\.2\.3.+skipped/);
+    expect(result).toMatch(/cool-package@1\.2\.3.+already published/);
   });
 
   it("should say if a publish was a dry run", () => {
@@ -26,7 +29,21 @@ describe("formatPublishResult", () => {
       } as PublishResult
     );
 
-    expect(result).toMatch(/cool-package@1\.2\.3.+DRY RUN/);
+    expect(result).toMatch(/DRY RUN/);
+  });
+
+  it("should say if a dry run would have skipped", () => {
+    const result = subject.formatPublishResult(
+      { name: "cool-package", version: "1.2.3" } as PackageManifest,
+      { dryRun: { value: true } } as NormalizedOptions,
+      {
+        id: "[email protected]",
+        files: [{ path: "cool-file-1", size: 1 }],
+        type: "dry-run",
+      } as PublishResult
+    );
+
+    expect(result).toMatch(/cool-package@1\.2\.3.+already published/);
   });
 
   it("should print files", () => {

src/compare-and-publish/__tests__/compare-versions.test.ts

@@ -8,7 +8,7 @@ describe("compareVersions", () => {
     const result = subject.compareVersions(
       "0.0.0",
       { versions: [], "dist-tags": {} },
-      { tag: { value: "next" } } as NormalizedOptions
+      { tag: { value: "next" }, dryRun: { value: false } } as NormalizedOptions
     );
 
     expect(result).toEqual({
@@ -20,6 +20,7 @@ describe("compareVersions", () => {
   it("should handle no known versions or dist tags", () => {
     const result = subject.compareVersions("0.0.0", undefined, {
       tag: { value: "next" },
+      dryRun: { value: false },
     } as NormalizedOptions);
 
     expect(result).toEqual({
@@ -35,6 +36,7 @@ describe("compareVersions", () => {
       {
         strategy: { value: "all" },
         tag: { value: "next" },
+        dryRun: { value: false },
       } as NormalizedOptions
     );
 
@@ -51,6 +53,7 @@ describe("compareVersions", () => {
       {
         strategy: { value: "upgrade" },
         tag: { value: "next" },
+        dryRun: { value: false },
       } as NormalizedOptions
     );
 
@@ -67,6 +70,7 @@ describe("compareVersions", () => {
       {
         strategy: { value: "all" },
         tag: { value: "next" },
+        dryRun: { value: false },
       } as NormalizedOptions
     );
 
@@ -83,6 +87,7 @@ describe("compareVersions", () => {
       {
         strategy: { value: "upgrade" },
         tag: { value: "next" },
+        dryRun: { value: false },
       } as NormalizedOptions
     );
 
@@ -99,6 +104,7 @@ describe("compareVersions", () => {
       {
         strategy: { value: "upgrade" },
         tag: { value: "next" },
+        dryRun: { value: false },
       } as NormalizedOptions
     );
 
@@ -107,4 +113,21 @@ describe("compareVersions", () => {
       oldVersion: "1.2.3",
     });
   });
+
+  it('should "release" anyway if dry run', () => {
+    const result = subject.compareVersions(
+      "4.5.6",
+      { versions: ["1.2.3", "4.5.6"], "dist-tags": { next: "4.5.6" } },
+      {
+        strategy: { value: "all" },
+        tag: { value: "next" },
+        dryRun: { value: true },
+      } as NormalizedOptions
+    );
+
+    expect(result).toEqual({
+      type: "dry-run",
+      oldVersion: "4.5.6",
+    });
+  });
 });

src/compare-and-publish/compare-versions.ts

@@ -4,17 +4,14 @@ import semverValid from "semver/functions/valid.js";
 
 import { STRATEGY_ALL } from "../options.js";
 import type { NormalizedOptions } from "../normalize-options.js";
-import type { ReleaseType } from "../results.js";
+import { INITIAL, DIFFERENT, DRY_RUN, type ReleaseType } from "../results.js";
 import type { NpmViewData } from "../npm/index.js";
 
 export interface VersionComparison {
   type: ReleaseType | undefined;
   oldVersion: string | undefined;
 }
 
-const INITIAL = "initial";
-const DIFFERENT = "different";
-
 /**
  * Compare previously published versions with the package's current version.
  *
@@ -29,7 +26,7 @@ export function compareVersions(
   options: NormalizedOptions
 ): VersionComparison {
   const { versions, "dist-tags": tags } = publishedVersions ?? {};
-  const { strategy, tag: publishTag } = options;
+  const { strategy, dryRun, tag: publishTag } = options;
   const oldVersion = semverValid(tags?.[publishTag.value]) ?? undefined;
   const isUnique = !versions?.includes(currentVersion);
   let type: ReleaseType | undefined;
@@ -44,5 +41,9 @@ export function compareVersions(
     }
   }
 
+  if (type === undefined && dryRun.value) {
+    type = DRY_RUN;
+  }
+
   return { type, oldVersion };
 }

src/format-publish-result.ts

@@ -2,8 +2,14 @@ import os from "node:os";
 
 import type { PublishResult } from "./compare-and-publish/index.js";
 import type { PackageManifest } from "./read-manifest.js";
+import { DRY_RUN } from "./results.js";
 import type { NormalizedOptions } from "./normalize-options.js";
 
+const DRY_RUN_BANNER =
+  "=== DRY RUN === DRY RUN === DRY RUN === DRY RUN === DRY RUN ===";
+
+const CONTENTS_BANNER = "=== Contents ===";
+
 /**
  * Format publish results into a string.
  *
@@ -17,15 +23,25 @@ export function formatPublishResult(
   options: NormalizedOptions,
   result: PublishResult
 ): string {
-  if (result.id === undefined) {
-    return `🙅‍♀️ ${manifest.name}@${manifest.version} publish skipped.`;
+  const lines = [];
+
+  lines.push(
+    result.id === undefined || result.type === DRY_RUN
+      ? `🙅‍♀️ ${manifest.name}@${manifest.version} already published.`
+      : `📦 ${result.id}`
+  );
+
+  if (result.id) {
+    lines.push(CONTENTS_BANNER);
+  }
+
+  for (const { path, size } of result.files) {
+    lines.push(`${formatSize(size)}\t${path}`);
   }
 
-  return [
-    `📦 ${result.id}${options.dryRun.value ? " (DRY RUN)" : ""}`,
-    "=== Contents ===",
-    ...result.files.map(({ path, size }) => `${formatSize(size)}\t${path}`),
-  ].join(os.EOL);
+  return (
+    options.dryRun.value ? [DRY_RUN_BANNER, ...lines, DRY_RUN_BANNER] : lines
+  ).join(os.EOL);
 }
 
 const formatSize = (size: number): string => {

src/results.ts

@@ -2,9 +2,15 @@ import type { Access, Strategy } from "./options.js";
 import type { ReleaseType as SemverReleaseType } from "semver";
 
 /** Release type */
-export type ReleaseType = SemverReleaseType | typeof INITIAL | typeof DIFFERENT;
+export type ReleaseType =
+  | SemverReleaseType
+  | typeof INITIAL
+  | typeof DIFFERENT
+  | typeof DRY_RUN;
+
 export const INITIAL = "initial";
 export const DIFFERENT = "different";
+export const DRY_RUN = "dry-run";
 
 /** Results of the publish */
 export interface Results {