Add parity with pages-action for Pages deploy outputs

.changeset/fast-experts-shop.md

@@ -0,0 +1,5 @@
+---
+"wrangler-action": minor
+---
+
+Support id, environment, url, and alias outputs for Pages deploys.

package.json

@@ -30,7 +30,8 @@
 	},
 	"dependencies": {
 		"@actions/core": "^1.10.1",
-		"@actions/exec": "^1.1.1"
+		"@actions/exec": "^1.1.1",
+		"zod": "^3.23.8"
 	},
 	"devDependencies": {
 		"@changesets/changelog-github": "^0.4.8",
@@ -39,6 +40,7 @@
 		"@types/node": "^20.10.4",
 		"@vercel/ncc": "^0.38.1",
 		"prettier": "^3.1.0",
+		"mock-fs": "^5.4.0",
 		"semver": "^7.5.4",
 		"typescript": "^5.3.3",
 		"vitest": "^1.0.3"

src/index.ts

@@ -1,22 +1,23 @@
 import {
+	debug,
 	getBooleanInput,
 	getInput,
 	getMultilineInput,
 	endGroup as originalEndGroup,
 	error as originalError,
 	info as originalInfo,
-	debug,
 	startGroup as originalStartGroup,
 	setFailed,
 	setOutput,
 } from "@actions/core";
 import { getExecOutput } from "@actions/exec";
 import semverEq from "semver/functions/eq";
 import { exec, execShell } from "./exec";
-import { checkWorkingDirectory, semverCompare } from "./utils";
 import { getPackageManager } from "./packageManagers";
+import { checkWorkingDirectory, semverCompare } from "./utils";
+import { getDetailedPagesDeployOutput } from "./wranglerArtifactManager";
 
-const DEFAULT_WRANGLER_VERSION = "3.78.10";
+const DEFAULT_WRANGLER_VERSION = "3.81.0";
 
 /**
  * A configuration object that contains all the inputs & immutable state for the action.
@@ -313,6 +314,9 @@ async function wranglerCommands() {
 			let stdErr = "";
 
 			// Construct the options for the exec command
+			const wranglerOutputDir = "/opt/wranglerArtifacts";
+			process.env.WRANGLER_OUTPUT_FILE_DIRECTORY = wranglerOutputDir;
+
 			const options = {
 				cwd: config["workingDirectory"],
 				silent: config["QUIET_MODE"],
@@ -333,14 +337,9 @@ async function wranglerCommands() {
 			setOutput("command-output", stdOut);
 			setOutput("command-stderr", stdErr);
 
-			// Check if this command is a workers or pages deployment
-			if (
-				command.startsWith("deploy") ||
-				command.startsWith("publish") ||
-				command.startsWith("pages publish") ||
-				command.startsWith("pages deploy")
-			) {
-				// If this is a workers or pages deployment, try to extract the deployment URL
+			// Check if this command is a workers deployment
+			if (command.startsWith("deploy") || command.startsWith("publish")) {
+				// Try to extract the deployment URL
 				let deploymentUrl = "";
 				const deploymentUrlMatch = stdOut.match(/https?:\/\/[a-zA-Z0-9-./]+/);
 				if (deploymentUrlMatch && deploymentUrlMatch[0]) {
@@ -357,6 +356,26 @@ async function wranglerCommands() {
 					setOutput("deployment-alias-url", aliasUrl);
 				}
 			}
+			// Check if this command is a pages deployment
+			if (
+				command.startsWith("pages publish") ||
+				command.startsWith("pages deploy")
+			) {
+				const pagesArtifactFields =
+					await getDetailedPagesDeployOutput(wranglerOutputDir);
+
+				if (pagesArtifactFields) {
+					setOutput("id", pagesArtifactFields.deployment_id);
+					setOutput("url", pagesArtifactFields.url);
+					// To ensure parity with pages-action, display url for alias if there is no alias
+					setOutput("alias", pagesArtifactFields.alias);
+					setOutput("environment", pagesArtifactFields.environment);
+				} else {
+					info(
+						"No fields available for output. Have you updated wrangler to version >=3.81.0?",
+					);
+				}
+			}
 		}
 	} finally {
 		endGroup();

src/wranglerArtifactManager.test.ts

@@ -0,0 +1,87 @@
+import { describe, expect, it } from "vitest";
+import {
+	getDetailedPagesDeployOutput,
+	getWranglerArtifacts,
+} from "./wranglerArtifactManager";
+
+describe("wranglerArtifactsManager", () => {
+	const mock = require("mock-fs");
+
+	describe("getWranglerArtifacts()", async () => {
+		it("Returns only wrangler output files from a given directory", async () => {
+			mock({
+				testOutputDir: {
+					"wrangler-output-2024-10-17_18-48-40_463-2e6e83.json": `
+                    {"version": 1, "type":"wrangler-session", "wrangler_version":"3.81.0", "command_line_args":["what's up"], "log_file_path": "/here"}
+                    {"version": 1, "type":"pages-deploy-detailed", "environment":"production", "alias":"test.com", "deployment_id": "123", "url":"url.com"}`,
+					"not-wrangler-output.json": "test",
+				},
+			});
+
+			const artifacts = await getWranglerArtifacts("./testOutputDir");
+
+			expect(artifacts).toEqual([
+				"./testOutputDir/wrangler-output-2024-10-17_18-48-40_463-2e6e83.json",
+			]);
+			mock.restore();
+		});
+		it("Returns an empty list when the output directory doesn't exist", async () => {
+			mock({
+				notTheDirWeWant: {},
+			});
+
+			const artifacts = await getWranglerArtifacts("./testOutputDir");
+			expect(artifacts).toEqual([]);
+			mock.restore();
+		});
+	});
+
+	describe("getDetailedPagesDeployOutput()", async () => {
+		it("Returns only detailed pages deploy output from wrangler artifacts", async () => {
+			mock({
+				testOutputDir: {
+					"wrangler-output-2024-10-17_18-48-40_463-2e6e83.json": `
+                    {"version": 1, "type":"wrangler-session", "wrangler_version":"3.81.0", "command_line_args":["what's up"], "log_file_path": "/here"}
+                    {"version": 1, "type":"pages-deploy-detailed", "pages_project": "project", "environment":"production", "alias":"test.com", "deployment_id": "123", "url":"url.com"}`,
+					"not-wrangler-output.json": "test",
+				},
+			});
+
+			const artifacts = await getDetailedPagesDeployOutput("./testOutputDir");
+
+			expect(artifacts).toEqual({
+				version: 1,
+				pages_project: "project",
+				type: "pages-deploy-detailed",
+				url: "url.com",
+				environment: "production",
+				deployment_id: "123",
+				alias: "test.com",
+			});
+			mock.restore();
+		}),
+			it("Skips artifact entries that are not parseable", async () => {
+				mock({
+					testOutputDir: {
+						"wrangler-output-2024-10-17_18-48-40_463-2e6e83.json": `
+                    this line is invalid json.
+                    {"version": 1, "type":"pages-deploy-detailed", "pages_project": "project", "environment":"production", "alias":"test.com", "deployment_id": "123", "url":"url.com"}`,
+						"not-wrangler-output.json": "test",
+					},
+				});
+
+				const artifacts = await getDetailedPagesDeployOutput("./testOutputDir");
+
+				expect(artifacts).toEqual({
+					version: 1,
+					type: "pages-deploy-detailed",
+					pages_project: "project",
+					url: "url.com",
+					environment: "production",
+					deployment_id: "123",
+					alias: "test.com",
+				});
+				mock.restore();
+			});
+	});
+});

src/wranglerArtifactManager.ts

@@ -0,0 +1,86 @@
+import { access, open, readdir } from "fs/promises";
+import { z } from "zod";
+
+const OutputEntryBase = z.object({
+	version: z.literal(1),
+	type: z.string(),
+});
+
+const OutputEntryPagesDeployment = OutputEntryBase.merge(
+	z.object({
+		type: z.literal("pages-deploy-detailed"),
+		pages_project: z.string().nullable(),
+		deployment_id: z.string().nullable(),
+		url: z.string().optional(),
+		alias: z.string().optional(),
+		environment: z.enum(["production", "preview"]),
+	}),
+);
+
+type OutputEntryPagesDeployment = z.infer<typeof OutputEntryPagesDeployment>;
+
+/**
+ * Parses file names in a directory to find wrangler artifact files
+ *
+ * @param artifactDirectory
+ * @returns All artifact files from the directory
+ */
+export async function getWranglerArtifacts(
+	artifactDirectory: string,
+): Promise<string[]> {
+	try {
+		await access(artifactDirectory);
+	} catch {
+		return [];
+	}
+
+	// read files in asset directory
+	const dirent = await readdir(artifactDirectory, {
+		withFileTypes: true,
+		recursive: false,
+	});
+
+	//  Match files to wrangler-output-<timestamp>-xxxxxx.json
+	const regex = new RegExp(
+		/^wrangler-output-[\d]{4}-[\d]{2}-[\d]{2}_[\d]{2}-[\d]{2}-[\d]{2}_[\d]{3}-[A-Fa-f0-9]{6}\.json$/,
+	);
+	const artifactFilePaths = dirent
+		.filter((d) => d.name.match(regex))
+		.map((d) => `${artifactDirectory}/${d.name}`);
+
+	return artifactFilePaths;
+}
+
+/**
+ * Searches for detailed wrangler output from a pages deploy
+ *
+ * @param artifactDirectory
+ * @returns The first pages-output-detailed found within a wrangler artifact directory
+ */
+export async function getDetailedPagesDeployOutput(
+	artifactDirectory: string,
+): Promise<OutputEntryPagesDeployment | null> {
+	const artifactFilePaths = await getWranglerArtifacts(artifactDirectory);
+
+	for (let i = 0; i < artifactFilePaths.length; i++) {
+		const file = await open(artifactFilePaths[i], "r");
+
+		for await (const line of file.readLines()) {
+			try {
+				const output = JSON.parse(line);
+				const parsedOutput = OutputEntryPagesDeployment.parse(output);
+				if (parsedOutput.type === "pages-deploy-detailed") {
+					// Assume, in the context of the action, the first detailed deploy instance seen will suffice
+					return parsedOutput;
+				}
+			} catch (err) {
+				// If the line can't be parsed, skip it
+				continue;
+			}
+		}
+
+		await file.close();
+	}
+
+	return null;
+}