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feat: add Antigravity IDE module (#558)
## Description <!-- Briefly describe what this PR does and why --> Adds a module to open coder workspaces in Antigravity. ## Type of Change - [X] New module - [ ] New template - [ ] Bug fix - [ ] Feature/enhancement - [ ] Documentation - [ ] Other ## Module Information <!-- Delete this section if not applicable --> **Path:** `registry/coder/modules/antigravity` **New version:** `v1.0.0` **Breaking change:** [ ] Yes [ ] No ## Testing & Validation - [ ] Tests pass (`bun test`) - [ ] Code formatted (`bun fmt`) - [ ] Changes tested locally ## Related Issues <!-- Link related issues or write "None" if not applicable --> --------- Co-authored-by: Atif Ali <[email protected]>
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‎registry/coder/modules/antigravity/README.md‎

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---
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display_name: Antigravity
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description: Add a one-click button to launch Google Antigravity
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icon: ../../../../.icons/antigravity.svg
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verified: true
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tags: [ide, antigravity, ai, google]
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---
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# Antigravity IDE
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Add a button to open any workspace with a single click in [Antigravity IDE](https://antigravity.google).
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Uses the [Coder Remote VS Code Extension](https://github.com/coder/vscode-coder).
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```tf
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module "antigravity" {
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count = data.coder_workspace.me.start_count
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source = "registry.coder.com/coder/antigravity/coder"
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version = "1.0.0"
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agent_id = coder_agent.example.id
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}
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```
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## Examples
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### Open in a specific directory
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```tf
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module "antigravity" {
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count = data.coder_workspace.me.start_count
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source = "registry.coder.com/coder/antigravity/coder"
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version = "1.0.0"
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agent_id = coder_agent.example.id
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folder = "/home/coder/project"
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}
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```
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### Configure MCP servers for Antigravity
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Provide a JSON-encoded string via the `mcp` input. When set, the module writes the value to `~/.gemini/antigravity/mcp_config.json` using a `coder_script` on workspace start.
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The following example configures Antigravity to use the GitHub MCP server with authentication facilitated by the [`coder_external_auth`](https://coder.com/docs/admin/external-auth#configure-a-github-oauth-app) resource.
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```tf
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module "antigravity" {
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count = data.coder_workspace.me.start_count
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source = "registry.coder.com/coder/antigravity/coder"
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version = "1.0.0"
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agent_id = coder_agent.example.id
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folder = "/home/coder/project"
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mcp = jsonencode({
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mcpServers = {
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"github" : {
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"url" : "https://api.githubcopilot.com/mcp/",
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"headers" : {
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"Authorization" : "Bearer ${data.coder_external_auth.github.access_token}",
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},
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"type" : "http"
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}
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}
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})
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}
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data "coder_external_auth" "github" {
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id = "github"
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}
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```

‎registry/coder/modules/antigravity/main.test.ts‎

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import { describe, it, expect } from "bun:test";
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import {
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runTerraformApply,
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runTerraformInit,
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testRequiredVariables,
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runContainer,
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execContainer,
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removeContainer,
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findResourceInstance,
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readFileContainer,
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} from "~test";
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describe("antigravity", async () => {
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await runTerraformInit(import.meta.dir);
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testRequiredVariables(import.meta.dir, {
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agent_id: "foo",
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});
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it("default output", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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});
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expect(state.outputs.antigravity_url.value).toBe(
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"antigravity://coder.coder-remote/open?owner=default&workspace=default&url=https://mydeployment.coder.com&token=$SESSION_TOKEN",
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);
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const coder_app = state.resources.find(
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(res) =>
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res.type === "coder_app" &&
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res.module === "module.vscode-desktop-core" &&
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res.name === "vscode-desktop",
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);
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expect(coder_app).not.toBeNull();
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expect(coder_app?.instances.length).toBe(1);
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expect(coder_app?.instances[0].attributes.order).toBeNull();
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});
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it("adds folder", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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folder: "/foo/bar",
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});
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expect(state.outputs.antigravity_url.value).toBe(
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"antigravity://coder.coder-remote/open?owner=default&workspace=default&folder=/foo/bar&url=https://mydeployment.coder.com&token=$SESSION_TOKEN",
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);
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});
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it("adds folder and open_recent", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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folder: "/foo/bar",
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open_recent: "true",
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});
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expect(state.outputs.antigravity_url.value).toBe(
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"antigravity://coder.coder-remote/open?owner=default&workspace=default&folder=/foo/bar&openRecent&url=https://mydeployment.coder.com&token=$SESSION_TOKEN",
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);
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});
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it("adds folder but not open_recent", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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folder: "/foo/bar",
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openRecent: "false",
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});
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expect(state.outputs.antigravity_url.value).toBe(
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"antigravity://coder.coder-remote/open?owner=default&workspace=default&folder=/foo/bar&url=https://mydeployment.coder.com&token=$SESSION_TOKEN",
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);
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});
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it("adds open_recent", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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open_recent: "true",
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});
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expect(state.outputs.antigravity_url.value).toBe(
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"antigravity://coder.coder-remote/open?owner=default&workspace=default&openRecent&url=https://mydeployment.coder.com&token=$SESSION_TOKEN",
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);
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});
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it("expect order to be set", async () => {
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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order: "22",
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});
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const coder_app = state.resources.find(
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(res) =>
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res.type === "coder_app" &&
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res.module === "module.vscode-desktop-core" &&
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res.name === "vscode-desktop",
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);
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expect(coder_app).not.toBeNull();
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expect(coder_app?.instances.length).toBe(1);
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expect(coder_app?.instances[0].attributes.order).toBe(22);
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});
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it("writes ~/.gemini/antigravity/mcp_config.json when mcp provided", async () => {
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const id = await runContainer("alpine");
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try {
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const mcp = JSON.stringify({
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servers: { demo: { url: "http://localhost:1234" } },
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});
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const state = await runTerraformApply(import.meta.dir, {
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agent_id: "foo",
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mcp,
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});
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const script = findResourceInstance(
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state,
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"coder_script",
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"antigravity_mcp",
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).script;
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const resp = await execContainer(id, ["sh", "-c", script]);
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if (resp.exitCode !== 0) {
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console.log(resp.stdout);
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console.log(resp.stderr);
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}
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expect(resp.exitCode).toBe(0);
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const content = await readFileContainer(
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id,
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"/root/.gemini/antigravity/mcp_config.json",
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);
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expect(content).toBe(mcp);
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} finally {
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await removeContainer(id);
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}
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}, 10000);
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});

‎registry/coder/modules/antigravity/main.tf‎

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terraform {
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required_version = ">= 1.0"
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required_providers {
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coder = {
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source = "coder/coder"
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version = ">= 2.5"
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}
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}
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}
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variable "agent_id" {
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type = string
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description = "The ID of a Coder agent."
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}
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variable "folder" {
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type = string
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description = "The folder to open in Antigravity IDE."
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default = ""
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}
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variable "open_recent" {
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type = bool
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description = "Open the most recent workspace or folder. Falls back to the folder if there is no recent workspace or folder to open."
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default = false
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}
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variable "order" {
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type = number
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description = "The order determines the position of app in the UI presentation. The lowest order is shown first and apps with equal order are sorted by name (ascending order)."
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default = null
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}
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variable "group" {
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type = string
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description = "The name of a group that this app belongs to."
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default = null
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}
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variable "slug" {
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type = string
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description = "The slug of the app."
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default = "antigravity"
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}
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variable "display_name" {
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type = string
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description = "The display name of the app."
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default = "Antigravity IDE"
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}
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variable "mcp" {
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type = string
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description = "JSON-encoded string to configure MCP servers for Antigravity. When set, writes ~/.gemini/antigravity/mcp_config.json."
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default = ""
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}
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data "coder_workspace" "me" {}
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data "coder_workspace_owner" "me" {}
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locals {
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mcp_b64 = var.mcp != "" ? base64encode(var.mcp) : ""
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}
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module "vscode-desktop-core" {
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source = "registry.coder.com/coder/vscode-desktop-core/coder"
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version = "1.0.1"
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agent_id = var.agent_id
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web_app_icon = "/icon/antigravity.svg"
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web_app_slug = var.slug
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web_app_display_name = var.display_name
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web_app_order = var.order
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web_app_group = var.group
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folder = var.folder
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open_recent = var.open_recent
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protocol = "antigravity"
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}
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resource "coder_script" "antigravity_mcp" {
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count = var.mcp != "" ? 1 : 0
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agent_id = var.agent_id
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display_name = "Antigravity MCP"
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icon = "/icon/antigravity.svg"
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run_on_start = true
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start_blocks_login = false
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script = <<-EOT
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#!/bin/sh
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set -eu
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mkdir -p "$HOME/.gemini/antigravity"
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echo -n "${local.mcp_b64}" | base64 -d > "$HOME/.gemini/antigravity/mcp_config.json"
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chmod 600 "$HOME/.gemini/antigravity/mcp_config.json"
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EOT
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}
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output "antigravity_url" {
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value = module.vscode-desktop-core.ide_uri
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description = "Antigravity IDE URL."
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}
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