reorganize the whole thing into crates/ packages

1 files changed, 411 insertions, 0 deletions

diff --git a/ci-runner/src/lua/mod.rs b/ci-runner/src/lua/mod.rs
new file mode 100644
index 0000000..62ac68b
--- /dev/null
+++ b/ci-runner/src/lua/mod.rs
@@ -0,0 +1,411 @@
+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(ci_lib_core::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
+    }
+}