Initial version

Author: wiselancer

README.md

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+# 🚀 npm to pnpm Converter
+
+This script automates the process of converting npm projects to pnpm within a specified directory.
+
+## 📋 Features
+
+- 🔍 Recursively searches for npm projects (identified by `package-lock.json` files)
+- 🔄 Converts npm projects to pnpm
+- 📦 Installs dependencies using pnpm
+- 🔙 Automatic rollback in case of failures
+- 📊 Provides a summary of the conversion process
+
+## 🛠️ Prerequisites
+
+- Bash shell
+- npm
+- pnpm
+
+## 🚀 Usage
+
+1. Clone this repository:
+
+   ```
+   git clone https://github.com/yourusername/npm-to-pnpm-converter.git
+   ```
+
+2. Navigate to the script directory:
+
+   ```
+   cd npm-to-pnpm-converter
+   ```
+
+3. Make the script executable:
+
+   ```
+   chmod +x npmtopnpm.sh
+   ```
+
+4. Run the script, specifying the target directory:
+   ```
+   ./npmtopnpm.sh /path/to/your/projects
+   ```
+
+## 📝 Log File
+
+The script generates a log file named `pnpm_conversion.log` in the current directory. This file contains detailed information about the conversion process.
+
+## 🚨 Error Handling
+
+If an error occurs during the conversion process for a project, the script will:
+
+- Log the error
+- Attempt to restore the project to its original state
+- Continue with the next project
+
+## 📊 Summary
+
+After processing all projects, the script provides a summary including:
+
+- Total number of projects processed
+- Number of successful conversions
+- Number of failed conversions
+
+## ⚠️ Caution
+
+Always backup your projects before running this script. While it includes rollback functionality, it's always better to have a separate backup.
+
+## 🤝 Contributing
+
+Contributions, issues, and feature requests are welcome! Feel free to check [issues page](https://github.com/yourusername/npm-to-pnpm-converter/issues).
+
+## 📜 License
+
+This project is [MIT](https://choosealicense.com/licenses/mit/) licensed.

npmtopnpm.sh

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+#!/bin/bash
+
+# Check if a directory argument is passed
+if [ -z "$1" ]; then
+    echo "❌ Usage: $0 <directory>"
+    exit 1
+fi
+
+# Get the directory from the first argument
+TARGET_DIR="$1"
+
+# Check if the directory exists
+if [ ! -d "$TARGET_DIR" ]; then
+    echo "❌ Error: Directory $TARGET_DIR does not exist."
+    exit 1
+fi
+
+# Define log file
+LOGFILE="pnpm_conversion.log"
+
+# Function to log errors
+log_error() {
+    echo "❌ [ERROR] $1" | tee -a "$LOGFILE"
+}
+
+# Function to restore project if something goes wrong
+restore_project() {
+    project_dir=$1
+    backup_dir=$2
+    echo "🔄 Restoring original files in $project_dir" | tee -a "$LOGFILE"
+    # Restore package-lock.json and node_modules from backup
+    [ -f "$backup_dir/package-lock.json.bak" ] && mv "$backup_dir/package-lock.json.bak" "$project_dir/package-lock.json"
+    [ -d "$backup_dir/node_modules.bak" ] && mv "$backup_dir/node_modules.bak" "$project_dir/node_modules"
+}
+
+# Navigate to the target directory
+cd "$TARGET_DIR" || exit
+
+echo "🔍 Searching for npm projects in $TARGET_DIR..." | tee -a "$LOGFILE"
+
+# Find all projects with package-lock.json (which implies npm usage)
+find . -name 'package-lock.json' -print0 | while IFS= read -r -d '' file; do
+    project_dir=$(dirname "$file")
+    
+    # Check if the project directory still exists
+    if [ ! -d "$project_dir" ]; then
+        log_error "Project directory $project_dir no longer exists. Skipping..."
+        continue
+    fi
+    
+    echo "🚀 Converting project in $project_dir to pnpm..." | tee -a "$LOGFILE"
+    
+    backup_dir="$project_dir/.backup"
+    mkdir -p "$backup_dir"
+
+    # Backup package-lock.json and node_modules
+    mv "$project_dir/package-lock.json" "$backup_dir/package-lock.json.bak"
+    mv "$project_dir/node_modules" "$backup_dir/node_modules.bak" 2>/dev/null
+
+    # Remove node_modules and install using pnpm
+    cd "$project_dir" || continue
+    echo "📦 Running pnpm install in $project_dir" | tee -a "$LOGFILE"
+
+    if pnpm install; then
+        echo "✅ pnpm install succeeded in $project_dir" | tee -a "$LOGFILE"
+        # Clean up backups if successful
+        rm -rf "$backup_dir"
+    else
+        log_error "pnpm install failed in $project_dir"
+        # Restore the project if pnpm install fails
+        restore_project "$project_dir" "$backup_dir"
+    fi
+
+    cd - || exit
+done
+
+echo "🎉 Conversion process completed. Check $LOGFILE for details."

pnpm_conversion.log

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+🔍 Searching for npm projects in ...
+🔍 Searching for npm projects in ...
+🔍 Searching for npm projects in ...
+🔍 Searching for npm projects in ...
+❌ [ERROR] Target directory '' does not exist.
+❌ [ERROR] Target directory '' does not exist.