Function ensure_dir 

pub fn ensure_dir(path: &Path) -> Result<()>

Ensures a directory exists, creating it and all parent directories if necessary.

This function is cross-platform and handles:

• Windows long paths (>260 characters) automatically
• Permission errors with helpful error messages
• Existing files at the target path (returns error)

Arguments

• path - The directory path to create

Returns

• Ok(()) if the directory exists or was successfully created
• Err if the path exists but is not a directory, or creation fails

Examples

use agpm_cli::utils::fs::ensure_dir;
use std::path::Path;

// Create nested directories
ensure_dir(Path::new("output/agents/subdir"))?;

Platform Notes

• Windows: Automatically handles long paths and provides specific error guidance
• Unix: Respects umask for directory permissions
• All platforms: Creates parent directories recursively