From 1cd6d043c0170af7bab3e68cd84b52ed87053bad Mon Sep 17 00:00:00 2001
From: Mike Bostock <mbostock@gmail.com>
Date: Tue, 15 Apr 2025 11:45:03 -0700
Subject: [PATCH 1/2] deploy deprecation notice

---
 src/bin/observable.ts |  2 +-
 src/deploy.ts         | 11 ++++++++---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/bin/observable.ts b/src/bin/observable.ts
index 993b59672..d2cef42eb 100755
--- a/src/bin/observable.ts
+++ b/src/bin/observable.ts
@@ -81,7 +81,7 @@ try {
   build        generate a static site
   login        sign-in to Observable
   logout       sign-out of Observable
-  deploy       deploy an app to Observable
+  deploy       deploy an app to Observable [deprecated]
   whoami       check authentication status
   convert      convert an Observable notebook to Markdown
   help         print usage information
diff --git a/src/deploy.ts b/src/deploy.ts
index dbf19540d..92d6ef2d3 100644
--- a/src/deploy.ts
+++ b/src/deploy.ts
@@ -84,13 +84,18 @@ type DeployTargetInfo =
   | {create: true; workspace: {id: string; login: string}; projectSlug: string; title: string; accessLevel: string}
   | {create: false; workspace: {id: string; login: string}; project: GetProjectResponse};
 
-/** Deploy a project to ObservableHQ */
 export async function deploy(deployOptions: DeployOptions, effects = defaultEffects): Promise<void> {
   Telemetry.record({event: "deploy", step: "start", force: deployOptions.force});
   effects.clack.intro(`${inverse(" observable deploy ")} ${faint(`v${process.env.npm_package_version}`)}`);
-
+  effects.clack.log.warn(
+    wrapAnsi(
+      `Deploying data apps to Observable Cloud is now deprecated. Please migrate your data app to another static site hosting provider, such as GitHub Pages, Render, Cloudflare Pages, Vercel, or Netlify. For more details, please see ${underline(
+        "https://observablehq.com/release-notes/2025-04-15-deprecating-observable-cloud"
+      )}.`,
+      effects.outputColumns
+    )
+  );
   const deployInfo = await new Deployer(deployOptions, effects).deploy();
-
   effects.clack.outro(`Deployed app now visible at ${link(deployInfo.url)}`);
   Telemetry.record({event: "deploy", step: "finish"});
 }

From a430719f33480d9dfcd7d7706ea63af1706e8296 Mon Sep 17 00:00:00 2001
From: Mike Bostock <mbostock@gmail.com>
Date: Tue, 15 Apr 2025 14:01:38 -0700
Subject: [PATCH 2/2] avoid period confusion

---
 src/deploy.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/deploy.ts b/src/deploy.ts
index 92d6ef2d3..e09676cc8 100644
--- a/src/deploy.ts
+++ b/src/deploy.ts
@@ -89,9 +89,9 @@ export async function deploy(deployOptions: DeployOptions, effects = defaultEffe
   effects.clack.intro(`${inverse(" observable deploy ")} ${faint(`v${process.env.npm_package_version}`)}`);
   effects.clack.log.warn(
     wrapAnsi(
-      `Deploying data apps to Observable Cloud is now deprecated. Please migrate your data app to another static site hosting provider, such as GitHub Pages, Render, Cloudflare Pages, Vercel, or Netlify. For more details, please see ${underline(
+      `Deploying data apps to Observable Cloud is now deprecated. Please migrate your data app to another static site hosting provider, such as GitHub Pages, Render, Cloudflare Pages, Vercel, or Netlify. For more details, please see: ${underline(
         "https://observablehq.com/release-notes/2025-04-15-deprecating-observable-cloud"
-      )}.`,
+      )}`,
       effects.outputColumns
     )
   );