use an npx and uvx shim with hermit for MCPs (#655)

block · Jan 21, 2025 · 550b456 · 550b456
1 parent 2dc5e33
commit 550b456
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diff --git a/ui/desktop/src/bin/npx b/ui/desktop/src/bin/npx
@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# Enable strict mode to exit on errors and unset variables
+set -euo pipefail
+
+# Set log file
+LOG_FILE="/tmp/mcp.log"
+
+# Clear the log file at the start
+> "$LOG_FILE"
+
+# Function for logging
+log() {
+    local MESSAGE="$1"
+    echo "$(date +'%Y-%m-%d %H:%M:%S') - $MESSAGE" | tee -a "$LOG_FILE"
+}
+
+# Trap errors and log them before exiting
+trap 'log "An error occurred. Exiting with status $?."' ERR
+
+log "Starting npx setup script."
+
+# Ensure ~/.config/goose/mcp-hermit/bin exists
+log "Creating directory ~/.config/goose/mcp-hermit/bin if it does not exist."
+mkdir -p ~/.config/goose/mcp-hermit/bin
+
+# Change to the ~/.config/goose/mcp-hermit directory
+log "Changing to directory ~/.config/goose/mcp-hermit."
+cd ~/.config/goose/mcp-hermit
+
+# Check if hermit binary exists and download if not
+if [ ! -f ~/.config/goose/mcp-hermit/bin/hermit ]; then
+    log "Hermit binary not found. Downloading hermit binary."
+    curl -fsSL "https://github.com/cashapp/hermit/releases/download/stable/hermit-$(uname -s | tr '[:upper:]' '[:lower:]')-$(uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/').gz" \
+        | gzip -dc > ~/.config/goose/mcp-hermit/bin/hermit && chmod +x ~/.config/goose/mcp-hermit/bin/hermit
+    log "Hermit binary downloaded and made executable."
+else
+    log "Hermit binary already exists. Skipping download."
+fi
+
+# Update PATH
+export PATH=~/.config/goose/mcp-hermit/bin:$PATH
+log "Updated PATH to include ~/.config/goose/mcp-hermit/bin."
+
+
+# Verify hermit installation
+log "Checking for hermit in PATH."
+which hermit >> "$LOG_FILE"
+
+# Initialize hermit
+log "Initializing hermit."
+hermit init >> "$LOG_FILE"
+
+# Install Node.js using hermit
+log "Installing Node.js with hermit."
+hermit install node >> "$LOG_FILE"
+
+# Verify installations
+log "Verifying installation locations:"
+log "hermit: $(which hermit)"
+log "node: $(which node)"
+log "npx: $(which npx)"
+
+
+log "Checking for GOOSE_NPM_REGISTRY and GOOSE_NPM_CERT environment variables for custom npm registry setup..."
+# Check if GOOSE_NPM_REGISTRY is set and accessible
+if [ -n "${GOOSE_NPM_REGISTRY:-}" ] && curl -s --head --fail "$GOOSE_NPM_REGISTRY" > /dev/null; then
+    log "Checking custom goose registry availability: $GOOSE_NPM_REGISTRY"
+    log "$GOOSE_NPM_REGISTRY is accessible. Using it for npm registry."
+    export NPM_CONFIG_REGISTRY="$GOOSE_NPM_REGISTRY"
+
+    # Check if GOOSE_NPM_CERT is set and accessible
+    if [ -n "${GOOSE_NPM_CERT:-}" ] && curl -s --head --fail "$GOOSE_NPM_CERT" > /dev/null; then
+        log "Downloading certificate from: $GOOSE_NPM_CERT"
+        curl -sSL -o ~/.config/goose/mcp-hermit/cert.pem "$GOOSE_NPM_CERT"
+        if [ $? -eq 0 ]; then
+            log "Certificate downloaded successfully."
+            export NODE_EXTRA_CA_CERTS=~/.config/goose/mcp-hermit/cert.pem
+        else
+            log "Unable to download the certificate. Skipping certificate setup."
+        fi
+    else
+        log "GOOSE_NPM_CERT is either not set or not accessible. Skipping certificate setup."
+    fi
+
+else
+    log "GOOSE_NPM_REGISTRY is either not set or not accessible. Falling back to default npm registry."
+    export NPM_CONFIG_REGISTRY="https://registry.npmjs.org/"
+fi
+
+
+
+
+# Final step: Execute npx with passed arguments
+log "Executing 'npx' command with arguments: $*"
+npx "$@" || log "Failed to execute 'npx' with arguments: $*"
+
+log "npx setup script completed successfully."
diff --git a/ui/desktop/src/bin/uvx b/ui/desktop/src/bin/uvx
@@ -0,0 +1,99 @@
+#!/bin/bash
+
+# Enable strict mode to exit on errors and unset variables
+set -euo pipefail
+
+# Set log file
+LOG_FILE="/tmp/mcp.log"
+
+# Clear the log file at the start
+> "$LOG_FILE"
+
+# Function for logging
+log() {
+    local MESSAGE="$1"
+    echo "$(date +'%Y-%m-%d %H:%M:%S') - $MESSAGE" | tee -a "$LOG_FILE"
+}
+
+# Trap errors and log them before exiting
+trap 'log "An error occurred. Exiting with status $?."' ERR
+
+log "Starting uvx setup script."
+
+# Ensure ~/.config/goose/mcp-hermit/bin exists
+log "Creating directory ~/.config/goose/mcp-hermit/bin if it does not exist."
+mkdir -p ~/.config/goose/mcp-hermit/bin
+
+# Change to the ~/.config/goose/mcp-hermit directory
+log "Changing to directory ~/.config/goose/mcp-hermit."
+cd ~/.config/goose/mcp-hermit
+
+# Check if hermit binary exists and download if not
+if [ ! -f ~/.config/goose/mcp-hermit/bin/hermit ]; then
+    log "Hermit binary not found. Downloading hermit binary."
+    curl -fsSL "https://github.com/cashapp/hermit/releases/download/stable/hermit-$(uname -s | tr '[:upper:]' '[:lower:]')-$(uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/').gz" \
+        | gzip -dc > ~/.config/goose/mcp-hermit/bin/hermit && chmod +x ~/.config/goose/mcp-hermit/bin/hermit
+    log "Hermit binary downloaded and made executable."
+else
+    log "Hermit binary already exists. Skipping download."
+fi
+
+# Update PATH
+export PATH=~/.config/goose/mcp-hermit/bin:$PATH
+log "Updated PATH to include ~/.config/goose/mcp-hermit/bin."
+
+
+# Verify hermit installation
+log "Checking for hermit in PATH."
+which hermit >> "$LOG_FILE"
+
+# Initialize hermit
+log "Initializing hermit."
+hermit init >> "$LOG_FILE"
+
+# Install UV for python using hermit
+log "Installing UV with hermit."
+hermit install uv >> "$LOG_FILE"
+
+# Verify installations
+log "Verifying installation locations:"
+log "hermit: $(which hermit)"
+log "uv: $(which uv)"
+log "uvx: $(which uvx)"
+
+
+log "Checking for GOOSE_UV_REGISTRY and GOOSE_UV_CERT environment variables for custom python/pip/UV registry setup..."
+# Check if GOOSE_UV_REGISTRY is set and accessible
+if [ -n "${GOOSE_UV_REGISTRY:-}" ] && curl -s --head --fail "$GOOSE_UV_REGISTRY" > /dev/null; then
+    log "Checking custom goose registry availability: $GOOSE_UV_REGISTRY"
+    log "$GOOSE_UV_REGISTRY is accessible. Using it for UV registry."
+    export UV_INDEX_URL="$GOOSE_UV_REGISTRY"
+
+    if [ -n "${GOOSE_UV_CERT:-}" ] && curl -s --head --fail "$GOOSE_UV_CERT" > /dev/null; then
+        log "Downloading certificate from: $GOOSE_UV_CERT"
+        curl -sSL -o ~/.config/goose/mcp-hermit/cert.pem "$GOOSE_UV_CERT"
+        if [ $? -eq 0 ]; then
+            log "Certificate downloaded successfully."
+            export SSL_CLIENT_CERT=~/.config/goose/mcp-hermit/cert.pem
+        else
+            log "Unable to download the certificate. Skipping certificate setup."        
+        fi
+    else
+        log "GOOSE_UV_CERT is either not set or not accessible. Skipping certificate setup."
+    fi
+
+else
+    log "GOOSE_UV_REGISTRY is either not set or not accessible. Falling back to default pip registry."
+    export UV_INDEX_URL="https://pypi.org/simple"
+fi
+
+
+
+
+
+
+# Final step: Execute uvx with passed arguments
+log "Executing 'uvx' command with arguments: $*"
+uvx "$@" || log "Failed to execute 'uvx' with arguments: $*"
+
+log "uvx setup script completed successfully."
diff --git a/ui/desktop/src/config.ts b/ui/desktop/src/config.ts
@@ -39,14 +39,33 @@ export const extendGoosed = async (config: SystemConfig) => {
       console.error(`System ${config.cmd} is not supported right now`);
       return;
     }
-
+    
     // if its goosed - we will update the path to the binary
     if (config.cmd === 'goosed') {
       config = {
         ...config,
         cmd: await window.electron.getBinaryPath('goosed')
       };
     }
+
+    if (config.cmd === 'npx') {
+      // use our special npx shim which uses hermit.
+      config = {
+        ...config,
+        cmd: await window.electron.getBinaryPath('npx')
+      };
+    }
+
+    if (config.cmd === 'uvx') {
+      // use our special uvx shim which uses hermit.
+      config = {
+        ...config,
+        cmd: await window.electron.getBinaryPath('uvx')
+      };
+    }
+
+
+
   }
 
   try {