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2025-04-04 18:21:16 +02:00
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//! Rhai wrappers for Buildah module functions
//!
//! This module provides Rhai wrappers for the functions in the Buildah module.
use rhai::{Engine, EvalAltResult, Array, Dynamic, Map};
use std::collections::HashMap;
use crate::virt::buildah::{self, BuildahError, Image};
use crate::process::CommandResult;
/// Register Buildah module functions with the Rhai engine
///
/// # Arguments
///
/// * `engine` - The Rhai engine to register the functions with
///
/// # Returns
///
/// * `Result<(), Box<EvalAltResult>>` - Ok if registration was successful, Err otherwise
pub fn register_buildah_module(engine: &mut Engine) -> Result<(), Box<EvalAltResult>> {
// Register types
register_buildah_types(engine)?;
// Register container functions
engine.register_fn("buildah_from", from);
engine.register_fn("buildah_run", run);
engine.register_fn("buildah_run_with_isolation", run_with_isolation);
engine.register_fn("buildah_copy", copy);
engine.register_fn("buildah_add", add);
engine.register_fn("buildah_commit", commit);
engine.register_fn("buildah_remove", remove);
engine.register_fn("buildah_list", list);
engine.register_fn("buildah_build", build_with_options);
engine.register_fn("buildah_new_build_options", new_build_options);
// Register image functions
engine.register_fn("buildah_images", images);
engine.register_fn("buildah_image_remove", image_remove);
engine.register_fn("buildah_image_push", image_push);
engine.register_fn("buildah_image_tag", image_tag);
engine.register_fn("buildah_image_pull", image_pull);
engine.register_fn("buildah_image_commit", image_commit_with_options);
engine.register_fn("buildah_new_commit_options", new_commit_options);
engine.register_fn("buildah_config", config_with_options);
engine.register_fn("buildah_new_config_options", new_config_options);
Ok(())
}
/// Register Buildah module types with the Rhai engine
fn register_buildah_types(engine: &mut Engine) -> Result<(), Box<EvalAltResult>> {
// Register Image type and methods
engine.register_type_with_name::<Image>("BuildahImage");
// Register getters for Image properties
engine.register_get("id", |img: &mut Image| img.id.clone());
engine.register_get("names", |img: &mut Image| {
let mut array = Array::new();
for name in &img.names {
array.push(Dynamic::from(name.clone()));
}
array
});
engine.register_get("size", |img: &mut Image| img.size.clone());
engine.register_get("created", |img: &mut Image| img.created.clone());
Ok(())
}
// Helper functions for error conversion
fn buildah_error_to_rhai_error<T>(result: Result<T, BuildahError>) -> Result<T, Box<EvalAltResult>> {
result.map_err(|e| {
Box::new(EvalAltResult::ErrorRuntime(
format!("Buildah error: {}", e).into(),
rhai::Position::NONE
))
})
}
/// Create a new Map with default build options
pub fn new_build_options() -> Map {
let mut map = Map::new();
map.insert("tag".into(), Dynamic::UNIT);
map.insert("context_dir".into(), Dynamic::from("."));
map.insert("file".into(), Dynamic::from("Dockerfile"));
map.insert("isolation".into(), Dynamic::UNIT);
map
}
/// Create a new Map with default commit options
pub fn new_commit_options() -> Map {
let mut map = Map::new();
map.insert("format".into(), Dynamic::UNIT);
map.insert("squash".into(), Dynamic::from(false));
map.insert("rm".into(), Dynamic::from(false));
map
}
/// Create a new Map for config options
pub fn new_config_options() -> Map {
Map::new()
}
//
// Container Function Wrappers
//
/// Wrapper for buildah::from
///
/// Create a container from an image.
pub fn from(image: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::from(image))
}
/// Wrapper for buildah::run
///
/// Run a command in a container.
pub fn run(container: &str, command: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::run(container, command))
}
/// Wrapper for buildah::run_with_isolation
///
/// Run a command in a container with specified isolation.
pub fn run_with_isolation(container: &str, command: &str, isolation: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::run_with_isolation(container, command, isolation))
}
/// Wrapper for buildah::copy
///
/// Copy files into a container.
pub fn copy(container: &str, source: &str, dest: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::copy(container, source, dest))
}
/// Wrapper for buildah::add
///
/// Add files into a container.
pub fn add(container: &str, source: &str, dest: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::add(container, source, dest))
}
/// Wrapper for buildah::commit
///
/// Commit a container to an image.
pub fn commit(container: &str, image_name: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::commit(container, image_name))
}
/// Wrapper for buildah::remove
///
/// Remove a container.
pub fn remove(container: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::remove(container))
}
/// Wrapper for buildah::list
///
/// List containers.
pub fn list() -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::list())
}
/// Build an image with options specified in a Map
///
/// This provides a builder-style interface for Rhai scripts.
///
/// # Example
///
/// ```rhai
/// let options = buildah_new_build_options();
/// options.tag = "my-image:latest";
/// options.context_dir = ".";
/// options.file = "Dockerfile";
/// options.isolation = "chroot";
/// let result = buildah_build(options);
/// ```
pub fn build_with_options(options: Map) -> Result<CommandResult, Box<EvalAltResult>> {
// Extract options from the map
let tag_option = match options.get("tag") {
Some(tag) => {
if tag.is_unit() {
None
} else if let Ok(tag_str) = tag.clone().into_string() {
Some(tag_str)
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"tag must be a string".into(),
rhai::Position::NONE
)));
}
},
None => None
};
let context_dir = match options.get("context_dir") {
Some(dir) => {
if let Ok(dir_str) = dir.clone().into_string() {
dir_str
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"context_dir must be a string".into(),
rhai::Position::NONE
)));
}
},
None => String::from(".")
};
let file = match options.get("file") {
Some(file) => {
if let Ok(file_str) = file.clone().into_string() {
file_str
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"file must be a string".into(),
rhai::Position::NONE
)));
}
},
None => String::from("Dockerfile")
};
let isolation_option = match options.get("isolation") {
Some(isolation) => {
if isolation.is_unit() {
None
} else if let Ok(isolation_str) = isolation.clone().into_string() {
Some(isolation_str)
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"isolation must be a string".into(),
rhai::Position::NONE
)));
}
},
None => None
};
// Convert String to &str for the function call
let tag_ref = tag_option.as_deref();
let isolation_ref = isolation_option.as_deref();
// Call the buildah build function
buildah_error_to_rhai_error(buildah::build(tag_ref, &context_dir, &file, isolation_ref))
}
//
// Image Function Wrappers
//
/// Wrapper for buildah::images
///
/// List images in local storage.
pub fn images() -> Result<Array, Box<EvalAltResult>> {
let images = buildah_error_to_rhai_error(buildah::images())?;
// Convert Vec<Image> to Rhai Array
let mut array = Array::new();
for image in images {
array.push(Dynamic::from(image));
}
Ok(array)
}
/// Wrapper for buildah::image_remove
///
/// Remove one or more images.
pub fn image_remove(image: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::image_remove(image))
}
/// Wrapper for buildah::image_push
///
/// Push an image to a registry.
pub fn image_push(image: &str, destination: &str, tls_verify: bool) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::image_push(image, destination, tls_verify))
}
/// Wrapper for buildah::image_tag
///
/// Add an additional name to a local image.
pub fn image_tag(image: &str, new_name: &str) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::image_tag(image, new_name))
}
/// Wrapper for buildah::image_pull
///
/// Pull an image from a registry.
pub fn image_pull(image: &str, tls_verify: bool) -> Result<CommandResult, Box<EvalAltResult>> {
buildah_error_to_rhai_error(buildah::image_pull(image, tls_verify))
}
/// Commit a container to an image with options specified in a Map
///
/// This provides a builder-style interface for Rhai scripts.
///
/// # Example
///
/// ```rhai
/// let options = buildah_new_commit_options();
/// options.format = "docker";
/// options.squash = true;
/// options.rm = true;
/// let result = buildah_image_commit("my-container", "my-image:latest", options);
/// ```
pub fn image_commit_with_options(container: &str, image_name: &str, options: Map) -> Result<CommandResult, Box<EvalAltResult>> {
// Extract options from the map
let format_option = match options.get("format") {
Some(format) => {
if format.is_unit() {
None
} else if let Ok(format_str) = format.clone().into_string() {
Some(format_str)
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"format must be a string".into(),
rhai::Position::NONE
)));
}
},
None => None
};
let squash = match options.get("squash") {
Some(squash) => {
if let Ok(squash_val) = squash.clone().as_bool() {
squash_val
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"squash must be a boolean".into(),
rhai::Position::NONE
)));
}
},
None => false
};
let rm = match options.get("rm") {
Some(rm) => {
if let Ok(rm_val) = rm.clone().as_bool() {
rm_val
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
"rm must be a boolean".into(),
rhai::Position::NONE
)));
}
},
None => false
};
// Convert String to &str for the function call
let format_ref = format_option.as_deref();
// Call the buildah image_commit function
buildah_error_to_rhai_error(buildah::image_commit(container, image_name, format_ref, squash, rm))
}
/// Configure a container with options specified in a Map
///
/// This provides a builder-style interface for Rhai scripts.
///
/// # Example
///
/// ```rhai
/// let options = buildah_new_config_options();
/// options.author = "John Doe";
/// options.cmd = "echo Hello";
/// options.entrypoint = "/bin/sh -c";
/// let result = buildah_config("my-container", options);
/// ```
pub fn config_with_options(container: &str, options: Map) -> Result<CommandResult, Box<EvalAltResult>> {
// Convert Rhai Map to Rust HashMap
let mut config_options = HashMap::<String, String>::new();
for (key, value) in options.iter() {
if let Ok(value_str) = value.clone().into_string() {
// Convert SmartString to String
config_options.insert(key.to_string(), value_str);
} else {
return Err(Box::new(EvalAltResult::ErrorRuntime(
format!("Option '{}' must be a string", key).into(),
rhai::Position::NONE
)));
}
}
// Call the buildah config function
buildah_error_to_rhai_error(buildah::config(container, config_options))
}