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use crate::buildah::{execute_buildah_command, BuildahError};
use sal_process::CommandResult;
use std::fs::File;
use std::io::{Read, Write};
use tempfile::NamedTempFile;
/// Functions for working with file content in buildah containers
pub struct ContentOperations;
impl ContentOperations {
/// Write content to a file in the container
///
/// # Arguments
///
/// * `container_id` - The container ID
/// * `content` - The content to write
/// * `dest_path` - Destination path in the container
///
/// # Returns
///
/// * `Result<CommandResult, BuildahError>` - Command result or error
pub fn write_content(
container_id: &str,
content: &str,
dest_path: &str,
) -> Result<CommandResult, BuildahError> {
// Create a temporary file
let mut temp_file = NamedTempFile::new()
.map_err(|e| BuildahError::Other(format!("Failed to create temporary file: {}", e)))?;
// Write content to the temporary file
temp_file.write_all(content.as_bytes()).map_err(|e| {
BuildahError::Other(format!("Failed to write to temporary file: {}", e))
})?;
// Flush the file to ensure content is written
temp_file
.flush()
.map_err(|e| BuildahError::Other(format!("Failed to flush temporary file: {}", e)))?;
// Copy the temporary file to the container
let temp_path = temp_file.path().to_string_lossy().to_string();
// Use add instead of copy for better handling of paths
execute_buildah_command(&["add", container_id, &temp_path, dest_path])
}
/// Read content from a file in the container
///
/// # Arguments
///
/// * `container_id` - The container ID
/// * `source_path` - Source path in the container
///
/// # Returns
///
/// * `Result<String, BuildahError>` - File content or error
pub fn read_content(container_id: &str, source_path: &str) -> Result<String, BuildahError> {
// Create a temporary file
let temp_file = NamedTempFile::new()
.map_err(|e| BuildahError::Other(format!("Failed to create temporary file: {}", e)))?;
let temp_path = temp_file.path().to_string_lossy().to_string();
// Copy the file from the container to the temporary file
// Use mount to access the container's filesystem
let mount_result = execute_buildah_command(&["mount", container_id])?;
let mount_point = mount_result.stdout.trim();
// Construct the full path to the file in the container
let full_source_path = format!("{}{}", mount_point, source_path);
// Copy the file from the mounted container to the temporary file
execute_buildah_command(&["copy", container_id, &full_source_path, &temp_path])?;
// Unmount the container
execute_buildah_command(&["umount", container_id])?;
// Read the content from the temporary file
let mut file = File::open(temp_file.path())
.map_err(|e| BuildahError::Other(format!("Failed to open temporary file: {}", e)))?;
let mut content = String::new();
file.read_to_string(&mut content).map_err(|e| {
BuildahError::Other(format!("Failed to read from temporary file: {}", e))
})?;
Ok(content)
}
}