diff options
Diffstat (limited to 'src/lua')
| -rw-r--r-- | src/lua/mod.rs | 411 |
1 files changed, 0 insertions, 411 deletions
diff --git a/src/lua/mod.rs b/src/lua/mod.rs deleted file mode 100644 index 6c4a281..0000000 --- a/src/lua/mod.rs +++ /dev/null @@ -1,411 +0,0 @@ -use crate::RunningJob; - -use rlua::prelude::*; - -use std::sync::{Arc, Mutex}; -use std::path::PathBuf; - -pub const DEFAULT_RUST_GOODFILE: &'static [u8] = include_bytes!("../../config/goodfiles/rust.lua"); - -pub struct BuildEnv { - lua: Lua, - job: Arc<Mutex<RunningJob>>, -} - -#[derive(Debug)] -pub struct RunParams { - step: Option<String>, - name: Option<String>, - cwd: Option<String>, -} - -pub struct CommandOutput { - pub exit_status: std::process::ExitStatus, - pub stdout: Vec<u8>, - pub stderr: Vec<u8>, -} - -mod lua_exports { - use crate::RunningJob; - use crate::lua::{CommandOutput, RunParams}; - - use std::sync::{Arc, Mutex}; - use std::path::PathBuf; - - use rlua::prelude::*; - - pub fn collect_build_args(command: LuaValue, params: LuaValue) -> Result<(Vec<String>, RunParams), rlua::Error> { - let args = match command { - LuaValue::Table(table) => { - let len = table.len().expect("command table has a length"); - let mut command_args = Vec::new(); - for i in 0..len { - let value = table.get(i + 1).expect("command arg is gettble"); - match value { - LuaValue::String(s) => { - command_args.push(s.to_str().unwrap().to_owned()); - }, - other => { - return Err(LuaError::RuntimeError(format!("argument {} was not a string, was {:?}", i, other))); - } - }; - } - - command_args - }, - other => { - return Err(LuaError::RuntimeError(format!("argument 1 was not a table: {:?}", other))); - } - }; - - let params = match params { - LuaValue::Table(table) => { - let step = match table.get("step").expect("can get from table") { - LuaValue::String(v) => { - Some(v.to_str()?.to_owned()) - }, - LuaValue::Nil => { - None - }, - other => { - return Err(LuaError::RuntimeError(format!("params[\"step\"] must be a string"))); - } - }; - let name = match table.get("name").expect("can get from table") { - LuaValue::String(v) => { - Some(v.to_str()?.to_owned()) - }, - LuaValue::Nil => { - None - }, - other => { - return Err(LuaError::RuntimeError(format!("params[\"name\"] must be a string"))); - } - }; - let cwd = match table.get("cwd").expect("can get from table") { - LuaValue::String(v) => { - Some(v.to_str()?.to_owned()) - }, - LuaValue::Nil => { - None - }, - other => { - return Err(LuaError::RuntimeError(format!("params[\"cwd\"] must be a string"))); - } - }; - - RunParams { - step, - name, - cwd, - } - }, - LuaValue::Nil => { - RunParams { - step: None, - name: None, - cwd: None, - } - } - other => { - return Err(LuaError::RuntimeError(format!("argument 2 was not a table: {:?}", other))); - } - }; - - Ok((args, params)) - } - - pub fn build_command_impl(command: LuaValue, params: LuaValue, job_ctx: Arc<Mutex<RunningJob>>) -> Result<(), rlua::Error> { - let (args, params) = collect_build_args(command, params)?; - eprintln!("args: {:?}", args); - eprintln!(" params: {:?}", params); - let rt = tokio::runtime::Builder::new_current_thread() - .enable_all() - .build() - .unwrap(); - rt.block_on(async move { - job_ctx.lock().unwrap().run_command(&args, params.cwd.as_ref().map(|x| x.as_str())).await - .map_err(|e| LuaError::RuntimeError(format!("run_command error: {:?}", e))) - }) - } - - pub fn check_output_impl<'lua>(ctx: rlua::Context<'lua>, command: LuaValue<'lua>, params: LuaValue<'lua>, job_ctx: Arc<Mutex<RunningJob>>) -> Result<rlua::Table<'lua>, rlua::Error> { - let (args, params) = collect_build_args(command, params)?; - eprintln!("args: {:?}", args); - eprintln!(" params: {:?}", params); - let rt = tokio::runtime::Builder::new_current_thread() - .enable_all() - .build() - .unwrap(); - let command_output = rt.block_on(async move { - job_ctx.lock().unwrap().run_with_output(&args, params.cwd.as_ref().map(|x| x.as_str())).await - .map_err(|e| LuaError::RuntimeError(format!("run_command error: {:?}", e))) - })?; - - let stdout = ctx.create_string(command_output.stdout.as_slice())?; - let stderr = ctx.create_string(command_output.stderr.as_slice())?; - - let result = ctx.create_table()?; - result.set("stdout", stdout)?; - result.set("stderr", stderr)?; - result.set("status", command_output.exit_status.code())?; - Ok(result) - } - - pub fn check_dependencies(commands: Vec<String>) -> Result<(), rlua::Error> { - let mut missing_deps = Vec::new(); - for command in commands.iter() { - if !has_cmd(command)? { - missing_deps.push(command.clone()); - } - } - - if missing_deps.len() > 0 { - return Err(LuaError::RuntimeError(format!("missing dependencies: {}", missing_deps.join(", ")))); - } - - Ok(()) - } - - pub fn metric(name: String, value: String, job_ctx: Arc<Mutex<RunningJob>>) -> Result<(), rlua::Error> { - let rt = tokio::runtime::Builder::new_current_thread() - .enable_all() - .build() - .unwrap(); - rt.block_on(async move { - job_ctx.lock().unwrap().send_metric(&name, value).await - .map_err(|e| LuaError::RuntimeError(format!("send_metric error: {:?}", e))) - }) - } - - pub fn artifact(path: String, name: Option<String>, job_ctx: Arc<Mutex<RunningJob>>) -> Result<(), rlua::Error> { - let path: PathBuf = path.into(); - - let default_name: String = match (path.file_name(), path.parent()) { - (Some(name), _) => name - .to_str() - .ok_or(LuaError::RuntimeError("artifact name is not a unicode string".to_string()))? - .to_string(), - (_, Some(parent)) => format!("{}", parent.display()), - (None, None) => { - // one day using directories for artifacts might work but / is still not going - // to be accepted - return Err(LuaError::RuntimeError(format!("cannot infer a default path name for {}", path.display()))); - } - }; - - let name: String = match name { - Some(name) => name, - None => default_name, - }; - let rt = tokio::runtime::Builder::new_current_thread() - .enable_all() - .build() - .unwrap(); - rt.block_on(async move { - let mut artifact = job_ctx.lock().unwrap().create_artifact(&name, &format!("{} (from {})", name, path.display())).await - .map_err(|e| LuaError::RuntimeError(format!("create_artifact error: {:?}", e))) - .unwrap(); - let mut file = tokio::fs::File::open(&format!("tmpdir/{}", path.display())).await.unwrap(); - eprintln!("uploading..."); - crate::io::forward_data(&mut file, &mut artifact).await - .map_err(|e| LuaError::RuntimeError(format!("failed uploading data for {}: {:?}", name, e)))?; - std::mem::drop(artifact); - Ok(()) - }) - } - - pub fn has_cmd(name: &str) -> Result<bool, rlua::Error> { - Ok(std::process::Command::new("which") - .arg(name) - .status() - .map_err(|e| LuaError::RuntimeError(format!("could not fork which? {:?}", e)))? - .success()) - } - - pub fn file_size(path: &str) -> Result<u64, rlua::Error> { - Ok(std::fs::metadata(&format!("tmpdir/{}", path)) - .map_err(|e| LuaError::RuntimeError(format!("could not stat {:?}", path)))? - .len()) - } - - pub mod step { - use crate::RunningJob; - use std::sync::{Arc, Mutex}; - - pub fn start(job_ref: Arc<Mutex<RunningJob>>, name: String) -> Result<(), rlua::Error> { - let mut job = job_ref.lock().unwrap(); - job.current_step.clear(); - job.current_step.push(name); - Ok(()) - } - - pub fn push(job_ref: Arc<Mutex<RunningJob>>, name: String) -> Result<(), rlua::Error> { - let mut job = job_ref.lock().unwrap(); - job.current_step.push(name); - Ok(()) - } - - pub fn advance(job_ref: Arc<Mutex<RunningJob>>, name: String) -> Result<(), rlua::Error> { - let mut job = job_ref.lock().unwrap(); - job.current_step.pop(); - job.current_step.push(name); - Ok(()) - } - } -} - -struct DeclEnv<'lua, 'env> { - lua_ctx: &'env rlua::Context<'lua>, - job_ref: &'env Arc<Mutex<RunningJob>>, -} -impl<'lua, 'env> DeclEnv<'lua, 'env> { - fn create_function<A, R, F>(&self, name: &str, f: F) -> Result<rlua::Function<'lua>, String> - where - A: FromLuaMulti<'lua>, - R: ToLuaMulti<'lua>, - F: 'static + Send + Fn(rlua::Context<'lua>, Arc<Mutex<RunningJob>>, A) -> Result<R, rlua::Error> { - - let job_ref = Arc::clone(self.job_ref); - self.lua_ctx.create_function(move |ctx, args| { - let job_ref = Arc::clone(&job_ref); - f(ctx, job_ref, args) - }) - .map_err(|e| format!("problem defining {} function: {:?}", name, e)) - } -} - -impl BuildEnv { - pub fn new(job: &Arc<Mutex<RunningJob>>) -> Self { - let env = BuildEnv { - lua: Lua::new(), - job: Arc::clone(job), - }; - env.lua.context(|lua_ctx| { - env.define_env(lua_ctx) - }).expect("can define context"); - env - } - - fn define_env(&self, lua_ctx: rlua::Context) -> Result<(), String> { - let decl_env = DeclEnv { - lua_ctx: &lua_ctx, - job_ref: &self.job, - }; - - let hello = decl_env.create_function("hello", |_, _, ()| { - eprintln!("hello from lua!!!"); - Ok(()) - })?; - - let check_dependencies = decl_env.create_function("dependencies", move |_, job_ref, commands: Vec<String>| { - lua_exports::check_dependencies(commands) - })?; - - let build = decl_env.create_function("build", move |_, job_ref, (command, params): (LuaValue, LuaValue)| { - lua_exports::build_command_impl(command, params, job_ref) - })?; - - let check_output = decl_env.create_function("check_output", move |ctx, job_ref, (command, params): (LuaValue, LuaValue)| { - lua_exports::check_output_impl(ctx, command, params, job_ref) - })?; - - let metric = decl_env.create_function("metric", move |_, job_ref, (name, value): (String, String)| { - lua_exports::metric(name, value, job_ref) - })?; - - let now_ms = decl_env.create_function("now_ms", move |_, job_ref, ()| Ok(crate::io::now_ms()))?; - - let artifact = decl_env.create_function("artifact", move |_, job_ref, (path, name): (String, Option<String>)| { - lua_exports::artifact(path, name, job_ref) - })?; - - let error = decl_env.create_function("error", move |_, job_ref, msg: String| { - Err::<(), LuaError>(LuaError::RuntimeError(format!("explicit error: {}", msg))) - })?; - - let path_has_cmd = decl_env.create_function("path_has_cmd", move |_, job_ref, name: String| { - lua_exports::has_cmd(&name) - })?; - - let size_of_file = decl_env.create_function("size_of_file", move |_, job_ref, name: String| { - lua_exports::file_size(&name) - })?; - - let native_rust_triple = match std::env::consts::ARCH { - "x86_64" => "x86_64-unknown-linux-gnu", - "aarch64" => "aarch64-unknown-linux-gnu", - other => { panic!("dunno native rust triple for arch {}", other); } - }; - let native_rust_triple = lua_ctx.create_string(native_rust_triple).unwrap(); - let build_env_vars = lua_ctx.create_table_from( - vec![ - ("native_rust_triple", native_rust_triple) - ] - ).unwrap(); - - let build_environment = lua_ctx.create_table_from( - vec![ - ("has", path_has_cmd), - ("size", size_of_file), - ] - ).unwrap(); - build_environment.set("vars", build_env_vars).unwrap(); - - let build_functions = lua_ctx.create_table_from( - vec![ - ("hello", hello), - ("run", build), - ("dependencies", check_dependencies), - ("metric", metric), - ("error", error), - ("artifact", artifact), - ("now_ms", now_ms), - ("check_output", check_output), - ] - ).unwrap(); - build_functions.set("environment", build_environment).unwrap(); - let current_commit = self.job.lock().unwrap().job.commit.clone(); - build_functions.set("sha", lua_ctx.create_string(current_commit.as_bytes()).unwrap()).unwrap(); - let globals = lua_ctx.globals(); - globals.set("Build", build_functions).unwrap(); - - - let step_start = decl_env.create_function("step_start", move |_, job_ref, name: String| { - lua_exports::step::start(job_ref, name) - })?; - - let step_push = decl_env.create_function("step_push", move |_, job_ref, name: String| { - lua_exports::step::push(job_ref, name) - })?; - - let step_advance = decl_env.create_function("step_advance", move |_, job_ref, name: String| { - lua_exports::step::advance(job_ref, name) - })?; - - let step_functions = lua_ctx.create_table_from( - vec![ - ("start", step_start), - ("push", step_push), - ("advance", step_advance), - ] - ).unwrap(); - globals.set("Step", step_functions).unwrap(); - Ok(()) - } - - pub async fn run_build(self, script: &[u8]) -> Result<(), LuaError> { - let script = script.to_vec(); - let res: Result<(), LuaError> = tokio::task::spawn_blocking(|| { - std::thread::spawn(move || { - self.lua.context(|lua_ctx| { - lua_ctx.load(&script) - .set_name("goodfile")? - .exec() - }) - }).join().unwrap() - }).await.unwrap(); - eprintln!("lua res: {:?}", res); - res - } -} |