feat(dry-run): always print publish results in dry run mode

.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: ${{ steps.action-publish-dry.outputs.type }}
+        run: |
+          echo "::error::Expected release type to be '', got '${{ steps.action-publish-dry.outputs.type }}'"
+          exit 1
+
   deploy:
     if: ${{ github.ref == 'refs/heads/main' }}
     name: Publish

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: undefined,
+        files: [{ path: "cool-file-1", size: 1 }],
+        type: undefined,
+      } as PublishResult
+    );
+
+    expect(result).toMatch(/cool-package@1\.2\.3.+already published/);
   });
 
   it("should print files", () => {

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

@@ -16,23 +16,31 @@ vi.mock("../compare-versions");
 vi.mock("../get-arguments");
 
 describe("compareAndPublish", () => {
-  const manifest = {
-    packageSpec: ".",
-    name: "fizzbuzz",
-    version: "1.2.3",
-  } as PackageManifest;
-
   const logger = { debug: (message: string) => void message } as Logger;
-  const normalizedOptions = {
-    token: "abc123",
-    ignoreScripts: { value: false },
-    logger,
-  } as NormalizedOptions;
   const environment: NpmCliEnvironment = { foo: "bar" };
   const npmViewResult = { versions: ["0.0.1"], "dist-tags": {} };
-  const npmPublishResult = { id: "[email protected]", files: [] };
+  const npmPublishResult = {
+    id: "[email protected]",
+    files: [{ path: "package.json", size: 42 }],
+  };
+
+  let manifest: PackageManifest;
+  let normalizedOptions: NormalizedOptions;
 
   beforeEach(() => {
+    manifest = {
+      packageSpec: ".",
+      name: "fizzbuzz",
+      version: "1.2.3",
+    } as PackageManifest;
+
+    normalizedOptions = {
+      token: "abc123",
+      ignoreScripts: { value: false },
+      dryRun: { value: false },
+      logger,
+    } as NormalizedOptions;
+
     when(getViewArguments)
       .calledWith("fizzbuzz", normalizedOptions)
       .thenReturn(["fizzbuzz"]);
@@ -83,7 +91,24 @@ describe("compareAndPublish", () => {
 
     expect(result).toEqual({
       id: "[email protected]",
-      files: [],
+      files: [{ path: "package.json", size: 42 }],
+      oldVersion: "0.0.1",
+      type: "major",
+    });
+  });
+
+  it("should get versions, compare, and publish in dry run", async () => {
+    normalizedOptions.dryRun.value = true;
+
+    const result = await subject.compareAndPublish(
+      manifest,
+      normalizedOptions,
+      environment
+    );
+
+    expect(result).toEqual({
+      id: "[email protected]",
+      files: [{ path: "package.json", size: 42 }],
       oldVersion: "0.0.1",
       type: "major",
     });
@@ -118,6 +143,31 @@ describe("compareAndPublish", () => {
     );
   });
 
+  it("should run publish if version exists but dry run", async () => {
+    normalizedOptions.dryRun.value = true;
+
+    when(compareVersions)
+      .calledWith(
+        "1.2.3",
+        { versions: ["0.0.1"], "dist-tags": {} },
+        normalizedOptions
+      )
+      .thenReturn({ type: undefined, oldVersion: "0.0.1" });
+
+    const result = await subject.compareAndPublish(
+      manifest,
+      normalizedOptions,
+      environment
+    );
+
+    expect(result).toEqual({
+      id: undefined,
+      files: [{ path: "package.json", size: 42 }],
+      oldVersion: "0.0.1",
+      type: undefined,
+    });
+  });
+
   it("should handle an E404 from npm view", async () => {
     when(callNpmCli<"view">)
       .calledWith("view", ["fizzbuzz"], {
@@ -146,7 +196,7 @@ describe("compareAndPublish", () => {
 
     expect(result).toEqual({
       id: "[email protected]",
-      files: [],
+      files: [{ path: "package.json", size: 42 }],
       oldVersion: "0.0.1",
       type: "major",
     });
@@ -260,7 +310,7 @@ describe("compareAndPublish", () => {
 
     expect(result).toEqual({
       id: "[email protected]",
-      files: [],
+      files: [{ path: "package.json", size: 42 }],
       oldVersion: "0.0.1",
       type: "major",
     });

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

@@ -59,10 +59,12 @@ export async function compareAndPublish(
     throw viewCall.error;
   }
 
+  const isDryRun = options.dryRun.value;
   const comparison = compareVersions(version, viewCall.successData, options);
-  const publishCall = comparison.type
-    ? await callNpmCli(PUBLISH, publishArguments, cliOptions)
-    : { successData: undefined, errorCode: undefined, error: undefined };
+  const publishCall =
+    comparison.type ?? isDryRun
+      ? await callNpmCli(PUBLISH, publishArguments, cliOptions)
+      : { successData: undefined, errorCode: undefined, error: undefined };
 
   if (publishCall.error && publishCall.errorCode !== EPUBLISHCONFLICT) {
     throw publishCall.error;
@@ -71,7 +73,7 @@ export async function compareAndPublish(
   const { successData: publishData } = publishCall;
 
   return {
-    id: publishData?.id,
+    id: isDryRun && !comparison.type ? undefined : publishData?.id,
     files: publishData?.files ?? [],
     type: publishData ? comparison.type : undefined,
     oldVersion: comparison.oldVersion,

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, 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.
  *

src/format-publish-result.ts

@@ -4,6 +4,11 @@ import type { PublishResult } from "./compare-and-publish/index.js";
 import type { PackageManifest } from "./read-manifest.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 +22,27 @@ 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
+      ? `🙅‍♀️ ${manifest.name}@${manifest.version} already published.`
+      : `📦 ${result.id}`
+  );
+
+  if (result.files.length > 0) {
+    lines.push("", CONTENTS_BANNER);
+  }
+
+  for (const { path, size } of result.files) {
+    lines.push(`${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

@@ -3,6 +3,7 @@ import type { ReleaseType as SemverReleaseType } from "semver";
 
 /** Release type */
 export type ReleaseType = SemverReleaseType | typeof INITIAL | typeof DIFFERENT;
+
 export const INITIAL = "initial";
 export const DIFFERENT = "different";