use path_slash::{PathBufExt, PathExt};
use ssri::Integrity;
use std::{
io,
path::{Path, PathBuf},
process::ExitStatus,
};
use tempfile::tempdir;
use thiserror::Error;
use tokio::process::Command;
use crate::{
build::{self, BuildError},
config::Config,
lua_installation::LuaInstallation,
lua_version::{LuaVersion, LuaVersionUnset},
operations::UnpackError,
path::{Paths, PathsError},
progress::{Progress, ProgressBar},
variables::{self, VariableSubstitutionError},
};
#[cfg(target_family = "unix")]
use crate::tree::{self, Tree, TreeError};
#[cfg(target_family = "windows")]
use crate::tree::{Tree, TreeError};
#[cfg(target_family = "unix")]
use crate::build::Build;
#[cfg(target_family = "unix")]
const LUAROCKS_EXE: &str = "luarocks";
#[cfg(target_family = "windows")]
const LUAROCKS_EXE: &str = "luarocks.exe";
pub(crate) const LUAROCKS_VERSION: &str = "3.13.0-1";
#[cfg(target_family = "unix")]
const LUAROCKS_ROCKSPEC: &str = "
rockspec_format = '3.0'
package = 'luarocks'
version = '3.13.0-1'
source = {
url = 'git+https://github.com/luarocks/luarocks',
tag = 'v3.13.0',
}
build = {
type = 'builtin',
}
";
#[derive(Error, Debug)]
pub enum LuaRocksError {
#[error(transparent)]
LuaVersionUnset(#[from] LuaVersionUnset),
#[error(transparent)]
Tree(#[from] TreeError),
}
#[derive(Error, Debug)]
pub enum LuaRocksInstallError {
#[error(transparent)]
Io(#[from] io::Error),
#[error(transparent)]
Tree(#[from] TreeError),
#[error(transparent)]
BuildError(#[from] BuildError),
#[error(transparent)]
Request(#[from] reqwest::Error),
#[error(transparent)]
UnpackError(#[from] UnpackError),
#[error("luarocks integrity mismatch.\nExpected: {expected}\nBut got: {got}")]
IntegrityMismatch { expected: Integrity, got: Integrity },
}
#[derive(Error, Debug)]
pub enum ExecLuaRocksError {
#[error(transparent)]
LuaVersionUnset(#[from] LuaVersionUnset),
#[error("could not write luarocks config: {0}")]
WriteLuarocksConfigError(io::Error),
#[error("could not write luarocks config: {0}")]
VariableSubstitutionInConfig(#[from] VariableSubstitutionError),
#[error("failed to run luarocks: {0}")]
Io(#[from] io::Error),
#[error("error setting up luarocks paths: {0}")]
Paths(#[from] PathsError),
#[error("luarocks binary not found at {0}")]
LuarocksBinNotFound(PathBuf),
#[error("executing luarocks compatibility layer failed.\nstatus: {status}\nstdout: {stdout}\nstderr: {stderr}")]
CommandFailure {
status: ExitStatus,
stdout: String,
stderr: String,
},
}
pub struct LuaRocksInstallation {
tree: Tree,
config: Config,
}
impl LuaRocksInstallation {
pub fn new(config: &Config, tree: Tree) -> Result<Self, LuaRocksError> {
let luarocks_installation = Self {
tree,
config: config.clone(),
};
Ok(luarocks_installation)
}
#[cfg(target_family = "unix")]
pub async fn ensure_installed(
&self,
lua: &LuaInstallation,
progress: &Progress<ProgressBar>,
) -> Result<(), LuaRocksInstallError> {
use crate::{lua_rockspec::RemoteLuaRockspec, package::PackageReq};
let mut lockfile = self.tree.lockfile()?.write_guard();
let luarocks_req =
unsafe { PackageReq::new_unchecked("luarocks".into(), Some(LUAROCKS_VERSION.into())) };
if !self.tree.match_rocks(&luarocks_req)?.is_found() {
let rockspec = unsafe { RemoteLuaRockspec::new(LUAROCKS_ROCKSPEC).unwrap_unchecked() };
let pkg = Build::new()
.rockspec(&rockspec)
.lua(lua)
.tree(&self.tree)
.entry_type(tree::EntryType::Entrypoint)
.config(&self.config)
.progress(progress)
.constraint(luarocks_req.version_req().clone().into())
.build()
.await?;
lockfile.add_entrypoint(&pkg);
}
Ok(())
}
#[cfg(target_family = "windows")]
pub async fn ensure_installed(
&self,
_lua: &LuaInstallation,
progress: &Progress<ProgressBar>,
) -> Result<(), LuaRocksInstallError> {
use crate::{hash::HasIntegrity, operations};
use std::io::Cursor;
let file_name = "luarocks-3.13.0-windows-64";
let url = format!("https://luarocks.github.io/luarocks/releases/{file_name}.zip");
let response = reqwest::get(url).await?.error_for_status()?.bytes().await?;
let hash = response.hash()?;
let expected_hash: Integrity = unsafe {
"sha256-CJet5dRZ1VzRliqUgVN0WmdJ/rNFQDxoqqkgc4hVerk="
.parse()
.unwrap_unchecked()
};
if expected_hash.matches(&hash).is_none() {
return Err(LuaRocksInstallError::IntegrityMismatch {
expected: expected_hash,
got: hash,
});
}
let cursor = Cursor::new(response);
let mime_type = infer::get(cursor.get_ref()).map(|file_type| file_type.mime_type());
let unpack_dir = tempdir()?;
operations::unpack(
mime_type,
cursor,
false,
format!("{file_name}.zip"),
unpack_dir.path(),
progress,
)
.await?;
let luarocks_exe = unpack_dir.path().join(file_name).join(LUAROCKS_EXE);
tokio::fs::copy(luarocks_exe, &self.tree.bin().join(LUAROCKS_EXE)).await?;
Ok(())
}
pub async fn make(
self,
rockspec_path: &Path,
build_dir: &Path,
dest_dir: &Path,
lua: &LuaInstallation,
) -> Result<(), ExecLuaRocksError> {
std::fs::create_dir_all(dest_dir)?;
let dest_dir_str = dest_dir.to_slash_lossy().to_string();
let rockspec_path_str = rockspec_path.to_slash_lossy().to_string();
let args = vec![
"make",
"--deps-mode",
"none",
"--tree",
&dest_dir_str,
&rockspec_path_str,
];
self.exec(args, build_dir, lua).await
}
async fn exec(
self,
args: Vec<&str>,
cwd: &Path,
lua: &LuaInstallation,
) -> Result<(), ExecLuaRocksError> {
let luarocks_paths = Paths::new(&self.tree)?;
let temp_dir = tempdir()?;
let lua_version_str = match lua.version {
LuaVersion::Lua51 | LuaVersion::LuaJIT => "5.1",
LuaVersion::Lua52 | LuaVersion::LuaJIT52 => "5.2",
LuaVersion::Lua53 => "5.3",
LuaVersion::Lua54 => "5.4",
LuaVersion::Lua55 => "5.5",
};
let luarocks_config_content = format!(
r#"
lua_version = "{0}"
variables = {{
LUA_LIBDIR = "$(LUA_LIBDIR)",
LUA_INCDIR = "$(LUA_INCDIR)",
LUA_VERSION = "{1}",
MAKE = "{2}",
}}
"#,
lua_version_str,
LuaVersion::from(&self.config)?,
self.config.make_cmd(),
);
let luarocks_config_content =
variables::substitute(&[lua, &self.config], &luarocks_config_content)?;
let luarocks_config = temp_dir.path().join("luarocks-config.lua");
std::fs::write(luarocks_config.clone(), luarocks_config_content)
.map_err(ExecLuaRocksError::WriteLuarocksConfigError)?;
let luarocks_bin = self.tree.bin().join(LUAROCKS_EXE);
if !luarocks_bin.is_file() {
return Err(ExecLuaRocksError::LuarocksBinNotFound(luarocks_bin));
}
let output = Command::new(luarocks_bin)
.current_dir(cwd)
.args(args)
.env("PATH", luarocks_paths.path_prepended().joined())
.env("LUA_PATH", luarocks_paths.package_path().joined())
.env("LUA_CPATH", luarocks_paths.package_cpath().joined())
.env("HOME", temp_dir.path().to_slash_lossy().to_string())
.env(
"LUAROCKS_CONFIG",
luarocks_config.to_slash_lossy().to_string(),
)
.output()
.await?;
if output.status.success() {
build::utils::log_command_output(&output, &self.config);
Ok(())
} else {
Err(ExecLuaRocksError::CommandFailure {
status: output.status,
stdout: String::from_utf8_lossy(&output.stdout).into(),
stderr: String::from_utf8_lossy(&output.stderr).into(),
})
}
}
}