feat: remove node installation from gemini (#374)

Closes #

## Description
Standardising this across all modules:
- remove default node & nvm installation

<!-- Briefly describe what this PR does and why -->

## Type of Change

- [ ] New module
- [ ] Bug fix
- [x] Feature/enhancement
- [ ] Documentation
- [ ] Other

## Module Information

<!-- Delete this section if not applicable -->

**Path:** `registry/coder-labs/modules/gemini`  
**New version:** `v2.0.0`  
**Breaking change:** [x] Yes [ ] No

## Testing & Validation

- [x] Tests pass (`bun test`)
- [x] Code formatted (`bun run fmt`)
- [ ] Changes tested locally

## Related Issues

<!-- Link related issues or write "None" if not applicable -->

---------

Co-authored-by: DevCats <christofer@coder.com>

registry/coder-labs/modules/gemini/README.md

@@ -13,7 +13,7 @@ Run [Gemini CLI](https://github.com/google-gemini/gemini-cli) in your workspace
 ```tf
 module "gemini" {
   source   = "registry.coder.com/coder-labs/gemini/coder"
-  version  = "1.1.0"
+  version  = "2.0.0"
   agent_id = coder_agent.example.id
   folder   = "/home/coder/project"
 }
@@ -30,7 +30,7 @@ module "gemini" {
 
 ## Prerequisites
 
-- Node.js and npm will be installed automatically if not present
+- **Node.js and npm must be sourced/available before the gemini module installs** - ensure they are installed in your workspace image or via earlier provisioning steps
 - The [Coder Login](https://registry.coder.com/modules/coder/coder-login) module is required
 
 ## Examples
@@ -46,7 +46,7 @@ variable "gemini_api_key" {
 
 module "gemini" {
   source         = "registry.coder.com/coder-labs/gemini/coder"
-  version        = "1.1.0"
+  version        = "2.0.0"
   agent_id       = coder_agent.example.id
   gemini_api_key = var.gemini_api_key
   folder         = "/home/coder/project"
@@ -94,7 +94,7 @@ data "coder_parameter" "ai_prompt" {
 module "gemini" {
   count                = data.coder_workspace.me.start_count
   source               = "registry.coder.com/coder-labs/gemini/coder"
-  version              = "1.1.0"
+  version              = "2.0.0"
   agent_id             = coder_agent.example.id
   gemini_api_key       = var.gemini_api_key
   gemini_model         = "gemini-2.5-flash"
@@ -118,7 +118,7 @@ For enterprise users who prefer Google's Vertex AI platform:
 ```tf
 module "gemini" {
   source         = "registry.coder.com/coder-labs/gemini/coder"
-  version        = "1.1.0"
+  version        = "2.0.0"
   agent_id       = coder_agent.example.id
   gemini_api_key = var.gemini_api_key
   folder         = "/home/coder/project"

registry/coder-labs/modules/gemini/main.test.ts

@@ -153,7 +153,7 @@ describe("gemini", async () => {
       },
     });
     await execModuleScript(id);
-    const resp = await readFileContainer(id, "/home/coder/.gemini-module/install.log");
+    const resp = await readFileContainer(id, "/home/coder/.gemini-module/agentapi-start.log");
     expect(resp).toContain('GOOGLE_GENAI_USE_VERTEXAI=\'true\'');
   });
 
@@ -166,7 +166,7 @@ describe("gemini", async () => {
       },
     });
     await execModuleScript(id);
-    const resp = await readFileContainer(id, "/home/coder/.gemini-module/install.log");
+    const resp = await readFileContainer(id, "/home/coder/.gemini-module/agentapi-start.log");
     expect(resp).toContain(model);
   });
 
@@ -193,7 +193,7 @@ describe("gemini", async () => {
       },
     });
     await execModuleScript(id);
-    const resp = await readFileContainer(id, "/home/coder/.gemini-module/install.log");
+    const resp = await readFileContainer(id, "/home/coder/.gemini-module/agentapi-start.log");
     expect(resp).toContain(folder);
   });
 

registry/coder-labs/modules/gemini/scripts/install.sh

@@ -1,9 +1,9 @@
 #!/bin/bash
 
 BOLD='\033[0;1m'
-
+source "$HOME"/.bashrc
 command_exists() {
-    command -v "$1" >/dev/null 2>&1
+  command -v "$1" > /dev/null 2>&1
 }
 
 set -o nounset
@@ -21,56 +21,46 @@ echo "--------------------------------"
 
 set +o nounset
 
-function install_node() {
+function check_dependencies() {
-    if ! command_exists npm; then
-      printf "npm not found, checking for Node.js installation...\n"
   if ! command_exists node; then
-        printf "Node.js not found, installing Node.js via NVM...\n"
+    printf "Error: Node.js is not installed. Please install Node.js manually or use the pre_install_script to install it.\n"
-        export NVM_DIR="$HOME/.nvm"
-        if [ ! -d "$NVM_DIR" ]; then
-          mkdir -p "$NVM_DIR"
-          curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
-          [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
-        else
-          [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
-        fi
-
-        nvm install --lts
-        nvm use --lts
-        nvm alias default node
-
-        printf "Node.js installed: %s\n" "$(node --version)"
-        printf "npm installed: %s\n" "$(npm --version)"
-      else
-        printf "Node.js is installed but npm is not available. Please install npm manually.\n"
     exit 1
   fi
+
+  if ! command_exists npm; then
+    printf "Error: npm is not installed. Please install npm manually or use the pre_install_script to install it.\n"
+    exit 1
   fi
+
+  printf "Node.js version: %s\n" "$(node --version)"
+  printf "npm version: %s\n" "$(npm --version)"
 }
 
 function install_gemini() {
   if [ "${ARG_INSTALL}" = "true" ]; then
-    install_node
+    check_dependencies
-
-  if ! command_exists nvm; then
-      printf "which node: %s\n" "$(which node)"
-      printf "which npm: %s\n" "$(which npm)"
-
-      mkdir -p "$HOME"/.npm-global
-      npm config set prefix "$HOME/.npm-global"
-      export PATH="$HOME/.npm-global/bin:$PATH"
-      if ! grep -q "export PATH=$HOME/.npm-global/bin:\$PATH" ~/.bashrc; then
-          echo "export PATH=$HOME/.npm-global/bin:\$PATH" >> ~/.bashrc
-      fi
-    fi
 
     printf "%s Installing Gemini CLI\n" "${BOLD}"
 
+    NPM_GLOBAL_PREFIX="${HOME}/.npm-global"
+    if [ ! -d "$NPM_GLOBAL_PREFIX" ]; then
+      mkdir -p "$NPM_GLOBAL_PREFIX"
+    fi
+
+    npm config set prefix "$NPM_GLOBAL_PREFIX"
+
+    export PATH="$NPM_GLOBAL_PREFIX/bin:$PATH"
+
     if [ -n "$ARG_GEMINI_VERSION" ]; then
       npm install -g "@google/gemini-cli@$ARG_GEMINI_VERSION"
     else
       npm install -g "@google/gemini-cli"
     fi
+
+    if ! grep -q "export PATH=\"\$HOME/.npm-global/bin:\$PATH\"" "$HOME/.bashrc"; then
+      echo 'export PATH="$HOME/.npm-global/bin:$PATH"' >> "$HOME/.bashrc"
+    fi
+
     printf "%s Successfully installed Gemini CLI. Version: %s\n" "${BOLD}" "$(gemini --version)"
   fi
 }
@@ -157,8 +147,6 @@ function configure_mcp() {
 }
 
 install_gemini
-gemini --version
 populate_settings_json
 add_system_prompt_if_exists
 configure_mcp
-

registry/coder-labs/modules/gemini/scripts/start.sh

@@ -5,7 +5,7 @@ set -o pipefail
 source "$HOME"/.bashrc
 
 command_exists() {
-    command -v "$1" >/dev/null 2>&1
+  command -v "$1" > /dev/null 2>&1
 }
 
 if [ -f "$HOME/.nvm/nvm.sh" ]; then
@@ -48,7 +48,7 @@ if [ -n "$GEMINI_TASK_PROMPT" ]; then
   printf "Running automated task: %s\n" "$GEMINI_TASK_PROMPT"
   PROMPT="Every step of the way, report tasks to Coder with proper descriptions and statuses. Your task at hand: $GEMINI_TASK_PROMPT"
   PROMPT_FILE="$MODULE_DIR/prompt.txt"
-    echo -n "$PROMPT" >"$PROMPT_FILE"
+  echo -n "$PROMPT" > "$PROMPT_FILE"
   GEMINI_ARGS=(--prompt-interactive "$PROMPT")
 else
   printf "Starting Gemini CLI in interactive mode.\n"