Zsh: check if safe-chain is installed before running it.

src/shell-integration/setup.js

@@ -2,6 +2,10 @@ import chalk from "chalk";
 import { ui } from "../environment/userInteraction.js";
 import { detectShells } from "./shellDetection.js";
 import { knownAikidoTools } from "./helpers.js";
+import fs from "fs";
+import os from "os";
+import path from "path";
+import { fileURLToPath } from "url";
 
 /**
  * Loops over the detected shells and calls the setup function for each.
@@ -13,6 +17,8 @@ export async function setup() {
   );
   ui.emptyLine();
 
+  copyStartupFiles();
+
   try {
     const shells = detectShells();
     if (shells.length === 0) {
@@ -72,3 +78,23 @@ function setupShell(shell) {
 
   return success;
 }
+
+function copyStartupFiles() {
+  const startupFiles = ["init-zsh.sh"];
+
+  for (const file of startupFiles) {
+    const targetPath = path.join(os.homedir(), ".safe-chain", "scripts", file);
+
+    // Create target directory if it doesn't exist
+    const targetDir = targetPath.substring(0, targetPath.lastIndexOf("/"));
+    if (!fs.existsSync(targetDir)) {
+      fs.mkdirSync(targetDir, { recursive: true });
+    }
+
+    // Use absolute path for source
+    const __filename = fileURLToPath(import.meta.url);
+    const __dirname = path.dirname(__filename);
+    const sourcePath = path.resolve(__dirname, "startup-scripts", file);
+    fs.copyFileSync(sourcePath, targetPath);
+  }
+}

src/shell-integration/startup-scripts/init-zsh.sh

@@ -0,0 +1,81 @@
+
+function installIfCommandNotFound() {
+  local cmd="$1"
+  
+  # Check if the command already exists
+  if command -v "$cmd" > /dev/null 2>&1; then
+    return 0
+  fi
+  
+  # Check if Node.js version is below 18
+  # Safe-chain requires Node.js 18 or higher
+  local node_version=$(node -v | sed 's/v//' | cut -d'.' -f1)
+  if [ "$node_version" -lt 18 ]; then
+    return 2
+  fi
+  
+  # Command not found, ask user if they want to install safe-chain
+  printf "The command '%s' is not available. Do you want to install safe-chain to provide it? (y/N): " "$cmd"
+  read -r response
+  
+  if [[ "$response" =~ ^[Yy]$ ]]; then
+    printf "Installing safe-chain...\n"
+    installSafeChain
+    
+    if [ $? -ne 0 ]; then
+      printf "\nFailed to install safe-chain. Exiting.\n"
+      return 1
+    fi
+    
+    return 0
+  else
+    printf "Skipping safe-chain installation. Using original command instead.\n"
+    return 2
+  fi
+}
+
+function installSafeChain() {
+  command npm install -g @aikidosec/safe-chain
+  
+  if [ $? -ne 0 ]; then
+    return 1
+  fi
+
+  printf "------\n"
+}
+
+function wrapCommand() {
+  local original_cmd="$1"
+  local aikido_cmd="$2"
+
+  # Remove the first 2 arguments (original_cmd and aikido_cmd) from $@
+  # so that "$@" now contains only the arguments passed to the original command
+  shift 2
+  
+  installIfCommandNotFound "$aikido_cmd"
+  local install_result=$?
+  if [ $install_result -eq 2 ]; then
+    command "$original_cmd" "$@"
+  else
+    "$aikido_cmd" "$@"
+  fi
+}
+
+function npx() {
+  wrapCommand "npx" "aikido-npx" "$@"
+}
+
+function yarn() {
+  wrapCommand "yarn" "aikido-yarn" "$@"
+}
+
+function npm() {
+  if [[ "$1" == "-v" || "$1" == "--version" ]] && [[ $# -eq 1 ]]; then
+    # If args is just -v or --version and nothing else, just run the npm version command
+    # This is because nvm uses this to check the version of npm
+    command npm "$@"
+    return
+  fi
+
+  wrapCommand "npm" "aikido-npm" "$@"
+}

src/shell-integration/supported-shells/zsh.js

@@ -20,19 +20,23 @@ function teardown() {
   // This will remove the safe-chain aliases for npm, npx, and yarn commands.
   removeLinesMatchingPattern(startupFile, /^alias\s+(npm|npx|yarn)=/);
 
+  // Removes the line that sources the safe-chain zsh initialization script (~/.aikido/scripts/init-zsh.sh)
+  removeLinesMatchingPattern(
+    startupFile,
+    /^source\s+~\/\.safe-chain\/scripts\/init-zsh\.sh/
+  );
+
   return true;
 }
 
-function setup(tools) {
+function setup() {
   const startupFile = execAndGetOutput(startupFileCommand, executableName);
   teardown();
 
-  for (const tool of tools) {
   addLineToFile(
     startupFile,
-      `alias ${tool}="aikido-${tool}" # Safe-chain alias for ${tool}`
+    `source ~/.safe-chain/scripts/init-zsh.sh # Safe-chain Zsh initialization script`
   );
-  }
 
   return true;
 }

src/shell-integration/supported-shells/zsh.spec.js

@@ -59,49 +59,40 @@ describe("Zsh shell integration", () => {
   });
 
   describe("setup", () => {
-    it("should add aliases for all provided tools", () => {
-      const tools = ["npm", "npx", "yarn"];
-
-      const result = zsh.setup(tools);
+    it("should add source line for zsh initialization script", () => {
+      const result = zsh.setup();
       assert.strictEqual(result, true);
 
       const content = fs.readFileSync(mockStartupFile, "utf-8");
       assert.ok(
-        content.includes('alias npm="aikido-npm" # Safe-chain alias for npm')
-      );
-      assert.ok(
-        content.includes('alias npx="aikido-npx" # Safe-chain alias for npx')
-      );
-      assert.ok(
-        content.includes('alias yarn="aikido-yarn" # Safe-chain alias for yarn')
+        content.includes(
+          "source ~/.safe-chain/scripts/init-zsh.sh # Safe-chain Zsh initialization script"
+        )
       );
     });
 
     it("should call teardown before setup", () => {
-      // Pre-populate file with existing aliases
+      // Pre-populate file with existing source line
       fs.writeFileSync(
         mockStartupFile,
-        'alias npm="old-npm"\nalias npx="old-npx"\n',
+        "source ~/.safe-chain/scripts/init-zsh.sh\n",
         "utf-8"
       );
 
-      const tools = ["npm"];
-      zsh.setup(tools);
+      zsh.setup();
 
       const content = fs.readFileSync(mockStartupFile, "utf-8");
-      assert.ok(!content.includes('alias npm="old-npm"'));
-      assert.ok(content.includes('alias npm="aikido-npm"'));
+      const sourceMatches = (content.match(/source.*init-zsh\.sh/g) || [])
+        .length;
+      assert.strictEqual(sourceMatches, 1, "Should not duplicate source lines");
     });
 
-    it("should handle empty tools array", () => {
-      const result = zsh.setup([]);
+    it("should handle empty startup file", () => {
+      const result = zsh.setup();
       assert.strictEqual(result, true);
 
-      // File should be created during teardown call even if no tools are provided
-      if (fs.existsSync(mockStartupFile)) {
       const content = fs.readFileSync(mockStartupFile, "utf-8");
-        assert.strictEqual(content.trim(), "");
-      }
+      assert.ok(content.includes("source ~/.safe-chain/scripts/init-zsh.sh"));
     });
   });
 
@@ -129,6 +120,23 @@ describe("Zsh shell integration", () => {
       assert.ok(content.includes("alias grep="));
     });
 
+    it("should remove zsh initialization script source line", () => {
+      const initialContent = [
+        "#!/bin/zsh",
+        "source ~/.safe-chain/scripts/init-zsh.sh",
+        "alias ls='ls --color=auto'",
+      ].join("\n");
+
+      fs.writeFileSync(mockStartupFile, initialContent, "utf-8");
+
+      const result = zsh.teardown();
+      assert.strictEqual(result, true);
+
+      const content = fs.readFileSync(mockStartupFile, "utf-8");
+      assert.ok(!content.includes("source ~/.safe-chain/scripts/init-zsh.sh"));
+      assert.ok(content.includes("alias ls="));
+    });
+
     it("should handle file that doesn't exist", () => {
       if (fs.existsSync(mockStartupFile)) {
         fs.unlinkSync(mockStartupFile);
@@ -138,7 +146,7 @@ describe("Zsh shell integration", () => {
       assert.strictEqual(result, true);
     });
 
-    it("should handle file with no relevant aliases", () => {
+    it("should handle file with no relevant aliases or source lines", () => {
       const initialContent = [
         "#!/bin/zsh",
         "alias ls='ls --color=auto'",
@@ -171,30 +179,43 @@ describe("Zsh shell integration", () => {
 
   describe("integration tests", () => {
     it("should handle complete setup and teardown cycle", () => {
-      const tools = ["npm", "yarn"];
-
       // Setup
-      zsh.setup(tools);
+      zsh.setup();
       let content = fs.readFileSync(mockStartupFile, "utf-8");
-      assert.ok(content.includes('alias npm="aikido-npm"'));
-      assert.ok(content.includes('alias yarn="aikido-yarn"'));
+      assert.ok(content.includes("source ~/.safe-chain/scripts/init-zsh.sh"));
 
       // Teardown
       zsh.teardown();
       content = fs.readFileSync(mockStartupFile, "utf-8");
-      assert.ok(!content.includes("alias npm="));
-      assert.ok(!content.includes("alias yarn="));
+      assert.ok(!content.includes("source ~/.safe-chain/scripts/init-zsh.sh"));
     });
 
     it("should handle multiple setup calls", () => {
-      const tools = ["npm"];
-
-      zsh.setup(tools);
-      zsh.setup(tools);
+      zsh.setup();
+      zsh.setup();
 
       const content = fs.readFileSync(mockStartupFile, "utf-8");
-      const npmMatches = (content.match(/alias npm="/g) || []).length;
-      assert.strictEqual(npmMatches, 1, "Should not duplicate aliases");
+      const sourceMatches = (content.match(/source.*init-zsh\.sh/g) || [])
+        .length;
+      assert.strictEqual(sourceMatches, 1, "Should not duplicate source lines");
+    });
+
+    it("should handle mixed content with aliases and source lines", () => {
+      const initialContent = [
+        "#!/bin/zsh",
+        "alias npm='old-npm'",
+        "source ~/.safe-chain/scripts/init-zsh.sh",
+        "alias ls='ls --color=auto'",
+      ].join("\n");
+
+      fs.writeFileSync(mockStartupFile, initialContent, "utf-8");
+
+      // Teardown should remove both aliases and source line
+      zsh.teardown();
+      const content = fs.readFileSync(mockStartupFile, "utf-8");
+      assert.ok(!content.includes("alias npm="));
+      assert.ok(!content.includes("source ~/.safe-chain/scripts/init-zsh.sh"));
+      assert.ok(content.includes("alias ls="));
     });
   });
 });