From 6bdb6786babf47234b87daf512a742d2b169231a Mon Sep 17 00:00:00 2001 From: Edwin Cheng Date: Fri, 22 Jan 2021 19:11:01 +0800 Subject: Refactor build script data --- crates/project_model/src/build_data.rs | 206 ++++++++++++++++++++++++++++ crates/project_model/src/cargo_workspace.rs | 197 ++------------------------ crates/project_model/src/lib.rs | 1 + crates/project_model/src/workspace.rs | 20 ++- 4 files changed, 228 insertions(+), 196 deletions(-) create mode 100644 crates/project_model/src/build_data.rs diff --git a/crates/project_model/src/build_data.rs b/crates/project_model/src/build_data.rs new file mode 100644 index 000000000..82fcf23ad --- /dev/null +++ b/crates/project_model/src/build_data.rs @@ -0,0 +1,206 @@ +//! Handles build script specific information + +use std::{ + ffi::OsStr, + io::BufReader, + path::{Path, PathBuf}, + process::{Command, Stdio}, +}; + +use anyhow::Result; +use cargo_metadata::{BuildScript, Message, Package, PackageId}; +use itertools::Itertools; +use paths::AbsPathBuf; +use rustc_hash::FxHashMap; +use stdx::JodChild; + +use crate::{cfg_flag::CfgFlag, CargoConfig}; + +#[derive(Debug, Clone, Default)] +pub(crate) struct BuildDataMap { + data: FxHashMap, +} +#[derive(Debug, Clone, Default, PartialEq, Eq)] +pub struct BuildData { + /// List of config flags defined by this package's build script + pub cfgs: Vec, + /// List of cargo-related environment variables with their value + /// + /// If the package has a build script which defines environment variables, + /// they can also be found here. + pub envs: Vec<(String, String)>, + /// Directory where a build script might place its output + pub out_dir: Option, + /// Path to the proc-macro library file if this package exposes proc-macros + pub proc_macro_dylib_path: Option, +} + +impl BuildDataMap { + pub(crate) fn new( + cargo_toml: &Path, + cargo_features: &CargoConfig, + packages: &Vec, + progress: &dyn Fn(String), + ) -> Result { + let mut cmd = Command::new(toolchain::cargo()); + cmd.args(&["check", "--workspace", "--message-format=json", "--manifest-path"]) + .arg(cargo_toml); + + // --all-targets includes tests, benches and examples in addition to the + // default lib and bins. This is an independent concept from the --targets + // flag below. + cmd.arg("--all-targets"); + + if let Some(target) = &cargo_features.target { + cmd.args(&["--target", target]); + } + + if cargo_features.all_features { + cmd.arg("--all-features"); + } else { + if cargo_features.no_default_features { + // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures` + // https://github.com/oli-obk/cargo_metadata/issues/79 + cmd.arg("--no-default-features"); + } + if !cargo_features.features.is_empty() { + cmd.arg("--features"); + cmd.arg(cargo_features.features.join(" ")); + } + } + + cmd.stdout(Stdio::piped()).stderr(Stdio::null()).stdin(Stdio::null()); + + let mut child = cmd.spawn().map(JodChild)?; + let child_stdout = child.stdout.take().unwrap(); + let stdout = BufReader::new(child_stdout); + + let mut res = BuildDataMap::default(); + for message in cargo_metadata::Message::parse_stream(stdout) { + if let Ok(message) = message { + match message { + Message::BuildScriptExecuted(BuildScript { + package_id, + out_dir, + cfgs, + env, + .. + }) => { + let cfgs = { + let mut acc = Vec::new(); + for cfg in cfgs { + match cfg.parse::() { + Ok(it) => acc.push(it), + Err(err) => { + anyhow::bail!("invalid cfg from cargo-metadata: {}", err) + } + }; + } + acc + }; + let res = res.data.entry(package_id.clone()).or_default(); + // cargo_metadata crate returns default (empty) path for + // older cargos, which is not absolute, so work around that. + if out_dir != PathBuf::default() { + let out_dir = AbsPathBuf::assert(out_dir); + res.out_dir = Some(out_dir); + res.cfgs = cfgs; + } + + res.envs = env; + } + Message::CompilerArtifact(message) => { + progress(format!("metadata {}", message.target.name)); + + if message.target.kind.contains(&"proc-macro".to_string()) { + let package_id = message.package_id; + // Skip rmeta file + if let Some(filename) = + message.filenames.iter().find(|name| is_dylib(name)) + { + let filename = AbsPathBuf::assert(filename.clone()); + let res = res.data.entry(package_id.clone()).or_default(); + res.proc_macro_dylib_path = Some(filename); + } + } + } + Message::CompilerMessage(message) => { + progress(message.target.name.clone()); + } + Message::Unknown => (), + Message::BuildFinished(_) => {} + Message::TextLine(_) => {} + } + } + } + res.inject_cargo_env(packages); + Ok(res) + } + + pub(crate) fn with_cargo_env(packages: &Vec) -> Self { + let mut res = Self::default(); + res.inject_cargo_env(packages); + res + } + + pub(crate) fn get(&self, id: &PackageId) -> Option<&BuildData> { + self.data.get(id) + } + + fn inject_cargo_env(&mut self, packages: &Vec) { + for meta_pkg in packages { + let resource = self.data.entry(meta_pkg.id.clone()).or_default(); + inject_cargo_env(meta_pkg, &mut resource.envs); + + if let Some(out_dir) = &resource.out_dir { + // NOTE: cargo and rustc seem to hide non-UTF-8 strings from env! and option_env!() + if let Some(out_dir) = out_dir.to_str().map(|s| s.to_owned()) { + resource.envs.push(("OUT_DIR".to_string(), out_dir)); + } + } + } + } +} + +// FIXME: File a better way to know if it is a dylib +fn is_dylib(path: &Path) -> bool { + match path.extension().and_then(OsStr::to_str).map(|it| it.to_string().to_lowercase()) { + None => false, + Some(ext) => matches!(ext.as_str(), "dll" | "dylib" | "so"), + } +} + +/// Recreates the compile-time environment variables that Cargo sets. +/// +/// Should be synced with +fn inject_cargo_env(package: &cargo_metadata::Package, env: &mut Vec<(String, String)>) { + // FIXME: Missing variables: + // CARGO, CARGO_PKG_HOMEPAGE, CARGO_CRATE_NAME, CARGO_BIN_NAME, CARGO_BIN_EXE_ + + let mut manifest_dir = package.manifest_path.clone(); + manifest_dir.pop(); + if let Some(cargo_manifest_dir) = manifest_dir.to_str() { + env.push(("CARGO_MANIFEST_DIR".into(), cargo_manifest_dir.into())); + } + + env.push(("CARGO_PKG_VERSION".into(), package.version.to_string())); + env.push(("CARGO_PKG_VERSION_MAJOR".into(), package.version.major.to_string())); + env.push(("CARGO_PKG_VERSION_MINOR".into(), package.version.minor.to_string())); + env.push(("CARGO_PKG_VERSION_PATCH".into(), package.version.patch.to_string())); + + let pre = package.version.pre.iter().map(|id| id.to_string()).format("."); + env.push(("CARGO_PKG_VERSION_PRE".into(), pre.to_string())); + + let authors = package.authors.join(";"); + env.push(("CARGO_PKG_AUTHORS".into(), authors)); + + env.push(("CARGO_PKG_NAME".into(), package.name.clone())); + env.push(("CARGO_PKG_DESCRIPTION".into(), package.description.clone().unwrap_or_default())); + //env.push(("CARGO_PKG_HOMEPAGE".into(), package.homepage.clone().unwrap_or_default())); + env.push(("CARGO_PKG_REPOSITORY".into(), package.repository.clone().unwrap_or_default())); + env.push(("CARGO_PKG_LICENSE".into(), package.license.clone().unwrap_or_default())); + + let license_file = + package.license_file.as_ref().map(|buf| buf.display().to_string()).unwrap_or_default(); + env.push(("CARGO_PKG_LICENSE_FILE".into(), license_file)); +} diff --git a/crates/project_model/src/cargo_workspace.rs b/crates/project_model/src/cargo_workspace.rs index a09e1a9ff..c8a5333c4 100644 --- a/crates/project_model/src/cargo_workspace.rs +++ b/crates/project_model/src/cargo_workspace.rs @@ -1,24 +1,15 @@ //! FIXME: write short doc here -use std::{ - convert::TryInto, - ffi::OsStr, - io::BufReader, - ops, - path::{Path, PathBuf}, - process::{Command, Stdio}, -}; +use std::{convert::TryInto, ops, process::Command}; use anyhow::{Context, Result}; use base_db::Edition; -use cargo_metadata::{BuildScript, CargoOpt, Message, MetadataCommand, PackageId}; -use itertools::Itertools; +use cargo_metadata::{CargoOpt, MetadataCommand}; use la_arena::{Arena, Idx}; use paths::{AbsPath, AbsPathBuf}; use rustc_hash::FxHashMap; -use stdx::JodChild; -use crate::cfg_flag::CfgFlag; +use crate::build_data::{BuildData, BuildDataMap}; use crate::utf8_stdout; /// `CargoWorkspace` represents the logical structure of, well, a Cargo @@ -103,17 +94,8 @@ pub struct PackageData { pub features: FxHashMap>, /// List of features enabled on this package pub active_features: Vec, - /// List of config flags defined by this package's build script - pub cfgs: Vec, - /// List of cargo-related environment variables with their value - /// - /// If the package has a build script which defines environment variables, - /// they can also be found here. - pub envs: Vec<(String, String)>, - /// Directory where a build script might place its output - pub out_dir: Option, - /// Path to the proc-macro library file if this package exposes proc-macros - pub proc_macro_dylib_path: Option, + /// Build script related data for this package + pub build_data: BuildData, } #[derive(Debug, Clone, Eq, PartialEq)] @@ -246,17 +228,11 @@ impl CargoWorkspace { ) })?; - let mut out_dir_by_id = FxHashMap::default(); - let mut cfgs = FxHashMap::default(); - let mut envs = FxHashMap::default(); - let mut proc_macro_dylib_paths = FxHashMap::default(); - if config.load_out_dirs_from_check { - let resources = load_extern_resources(cargo_toml, config, progress)?; - out_dir_by_id = resources.out_dirs; - cfgs = resources.cfgs; - envs = resources.env; - proc_macro_dylib_paths = resources.proc_dylib_paths; - } + let resources = if config.load_out_dirs_from_check { + BuildDataMap::new(cargo_toml, config, &meta.packages, progress)? + } else { + BuildDataMap::with_cargo_env(&meta.packages) + }; let mut pkg_by_id = FxHashMap::default(); let mut packages = Arena::default(); @@ -267,7 +243,7 @@ impl CargoWorkspace { meta.packages.sort_by(|a, b| a.id.cmp(&b.id)); for meta_pkg in meta.packages { let id = meta_pkg.id.clone(); - inject_cargo_env(&meta_pkg, envs.entry(id).or_default()); + let build_data = resources.get(&id).cloned().unwrap_or_default(); let cargo_metadata::Package { id, edition, name, manifest_path, version, .. } = meta_pkg; @@ -285,10 +261,7 @@ impl CargoWorkspace { dependencies: Vec::new(), features: meta_pkg.features.into_iter().collect(), active_features: Vec::new(), - cfgs: cfgs.get(&id).cloned().unwrap_or_default(), - envs: envs.get(&id).cloned().unwrap_or_default(), - out_dir: out_dir_by_id.get(&id).cloned(), - proc_macro_dylib_path: proc_macro_dylib_paths.get(&id).cloned(), + build_data, }); let pkg_data = &mut packages[pkg]; pkg_by_id.insert(id, pkg); @@ -365,149 +338,3 @@ impl CargoWorkspace { self.packages.iter().filter(|(_, v)| v.name == name).count() == 1 } } - -#[derive(Debug, Clone, Default)] -pub(crate) struct ExternResources { - out_dirs: FxHashMap, - proc_dylib_paths: FxHashMap, - cfgs: FxHashMap>, - env: FxHashMap>, -} - -pub(crate) fn load_extern_resources( - cargo_toml: &Path, - cargo_features: &CargoConfig, - progress: &dyn Fn(String), -) -> Result { - let mut cmd = Command::new(toolchain::cargo()); - cmd.args(&["check", "--workspace", "--message-format=json", "--manifest-path"]).arg(cargo_toml); - - // --all-targets includes tests, benches and examples in addition to the - // default lib and bins. This is an independent concept from the --targets - // flag below. - cmd.arg("--all-targets"); - - if let Some(target) = &cargo_features.target { - cmd.args(&["--target", target]); - } - - if cargo_features.all_features { - cmd.arg("--all-features"); - } else { - if cargo_features.no_default_features { - // FIXME: `NoDefaultFeatures` is mutual exclusive with `SomeFeatures` - // https://github.com/oli-obk/cargo_metadata/issues/79 - cmd.arg("--no-default-features"); - } - if !cargo_features.features.is_empty() { - cmd.arg("--features"); - cmd.arg(cargo_features.features.join(" ")); - } - } - - cmd.stdout(Stdio::piped()).stderr(Stdio::null()).stdin(Stdio::null()); - - let mut child = cmd.spawn().map(JodChild)?; - let child_stdout = child.stdout.take().unwrap(); - let stdout = BufReader::new(child_stdout); - - let mut res = ExternResources::default(); - for message in cargo_metadata::Message::parse_stream(stdout) { - if let Ok(message) = message { - match message { - Message::BuildScriptExecuted(BuildScript { - package_id, - out_dir, - cfgs, - env, - .. - }) => { - let cfgs = { - let mut acc = Vec::new(); - for cfg in cfgs { - match cfg.parse::() { - Ok(it) => acc.push(it), - Err(err) => { - anyhow::bail!("invalid cfg from cargo-metadata: {}", err) - } - }; - } - acc - }; - // cargo_metadata crate returns default (empty) path for - // older cargos, which is not absolute, so work around that. - if out_dir != PathBuf::default() { - let out_dir = AbsPathBuf::assert(out_dir); - res.out_dirs.insert(package_id.clone(), out_dir); - res.cfgs.insert(package_id.clone(), cfgs); - } - - res.env.insert(package_id, env); - } - Message::CompilerArtifact(message) => { - progress(format!("metadata {}", message.target.name)); - - if message.target.kind.contains(&"proc-macro".to_string()) { - let package_id = message.package_id; - // Skip rmeta file - if let Some(filename) = message.filenames.iter().find(|name| is_dylib(name)) - { - let filename = AbsPathBuf::assert(filename.clone()); - res.proc_dylib_paths.insert(package_id, filename); - } - } - } - Message::CompilerMessage(message) => { - progress(message.target.name.clone()); - } - Message::Unknown => (), - Message::BuildFinished(_) => {} - Message::TextLine(_) => {} - } - } - } - Ok(res) -} - -// FIXME: File a better way to know if it is a dylib -fn is_dylib(path: &Path) -> bool { - match path.extension().and_then(OsStr::to_str).map(|it| it.to_string().to_lowercase()) { - None => false, - Some(ext) => matches!(ext.as_str(), "dll" | "dylib" | "so"), - } -} - -/// Recreates the compile-time environment variables that Cargo sets. -/// -/// Should be synced with -fn inject_cargo_env(package: &cargo_metadata::Package, env: &mut Vec<(String, String)>) { - // FIXME: Missing variables: - // CARGO, CARGO_PKG_HOMEPAGE, CARGO_CRATE_NAME, CARGO_BIN_NAME, CARGO_BIN_EXE_ - - let mut manifest_dir = package.manifest_path.clone(); - manifest_dir.pop(); - if let Some(cargo_manifest_dir) = manifest_dir.to_str() { - env.push(("CARGO_MANIFEST_DIR".into(), cargo_manifest_dir.into())); - } - - env.push(("CARGO_PKG_VERSION".into(), package.version.to_string())); - env.push(("CARGO_PKG_VERSION_MAJOR".into(), package.version.major.to_string())); - env.push(("CARGO_PKG_VERSION_MINOR".into(), package.version.minor.to_string())); - env.push(("CARGO_PKG_VERSION_PATCH".into(), package.version.patch.to_string())); - - let pre = package.version.pre.iter().map(|id| id.to_string()).format("."); - env.push(("CARGO_PKG_VERSION_PRE".into(), pre.to_string())); - - let authors = package.authors.join(";"); - env.push(("CARGO_PKG_AUTHORS".into(), authors)); - - env.push(("CARGO_PKG_NAME".into(), package.name.clone())); - env.push(("CARGO_PKG_DESCRIPTION".into(), package.description.clone().unwrap_or_default())); - //env.push(("CARGO_PKG_HOMEPAGE".into(), package.homepage.clone().unwrap_or_default())); - env.push(("CARGO_PKG_REPOSITORY".into(), package.repository.clone().unwrap_or_default())); - env.push(("CARGO_PKG_LICENSE".into(), package.license.clone().unwrap_or_default())); - - let license_file = - package.license_file.as_ref().map(|buf| buf.display().to_string()).unwrap_or_default(); - env.push(("CARGO_PKG_LICENSE_FILE".into(), license_file)); -} diff --git a/crates/project_model/src/lib.rs b/crates/project_model/src/lib.rs index 970a7e140..525c336e6 100644 --- a/crates/project_model/src/lib.rs +++ b/crates/project_model/src/lib.rs @@ -6,6 +6,7 @@ mod project_json; mod sysroot; mod workspace; mod rustc_cfg; +mod build_data; use std::{ fs::{read_dir, ReadDir}, diff --git a/crates/project_model/src/workspace.rs b/crates/project_model/src/workspace.rs index 073c48af7..bc5041e5a 100644 --- a/crates/project_model/src/workspace.rs +++ b/crates/project_model/src/workspace.rs @@ -178,7 +178,7 @@ impl ProjectWorkspace { let pkg_root = cargo[pkg].root().to_path_buf(); let mut include = vec![pkg_root.clone()]; - include.extend(cargo[pkg].out_dir.clone()); + include.extend(cargo[pkg].build_data.out_dir.clone()); let mut exclude = vec![pkg_root.join(".git")]; if is_member { @@ -484,23 +484,21 @@ fn add_target_crate_root( for feature in pkg.active_features.iter() { opts.insert_key_value("feature".into(), feature.into()); } - opts.extend(pkg.cfgs.iter().cloned()); + opts.extend(pkg.build_data.cfgs.iter().cloned()); opts }; let mut env = Env::default(); - for (k, v) in &pkg.envs { + for (k, v) in &pkg.build_data.envs { env.set(k, v.clone()); } - if let Some(out_dir) = &pkg.out_dir { - // NOTE: cargo and rustc seem to hide non-UTF-8 strings from env! and option_env!() - if let Some(out_dir) = out_dir.to_str().map(|s| s.to_owned()) { - env.set("OUT_DIR", out_dir); - } - } - let proc_macro = - pkg.proc_macro_dylib_path.as_ref().map(|it| proc_macro_loader(&it)).unwrap_or_default(); + let proc_macro = pkg + .build_data + .proc_macro_dylib_path + .as_ref() + .map(|it| proc_macro_loader(&it)) + .unwrap_or_default(); let display_name = CrateDisplayName::from_canonical_name(pkg.name.clone()); let crate_id = crate_graph.add_crate_root( -- cgit v1.2.3