From 6cff076513924430c8cdf422fa56dbe711faee40 Mon Sep 17 00:00:00 2001 From: Aleksey Kladov Date: Tue, 18 Aug 2020 10:38:57 +0200 Subject: Revive cache cleaning The idea here is that, on CI, we only want to cache crates.io dependencies, and not local crates. This keeps the size of the cache low, and also improves performance, as network and moving files on disk (on Windows) can be slow. --- xtask/src/lib.rs | 45 ++++------------------------ xtask/src/main.rs | 5 ++-- xtask/src/pre_cache.rs | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+), 42 deletions(-) create mode 100644 xtask/src/pre_cache.rs (limited to 'xtask') diff --git a/xtask/src/lib.rs b/xtask/src/lib.rs index f3ad81ba7..e790d995f 100644 --- a/xtask/src/lib.rs +++ b/xtask/src/lib.rs @@ -3,14 +3,15 @@ //! See https://github.com/matklad/cargo-xtask/ pub mod not_bash; +pub mod codegen; +mod ast_src; + pub mod install; pub mod release; pub mod dist; pub mod pre_commit; pub mod metrics; - -pub mod codegen; -mod ast_src; +pub mod pre_cache; use std::{ env, @@ -21,7 +22,7 @@ use walkdir::{DirEntry, WalkDir}; use crate::{ codegen::Mode, - not_bash::{fs2, pushd, pushenv, rm_rf}, + not_bash::{pushd, pushenv}, }; pub use anyhow::{bail, Context as _, Result}; @@ -108,42 +109,6 @@ pub fn run_fuzzer() -> Result<()> { Ok(()) } -/// Cleans the `./target` dir after the build such that only -/// dependencies are cached on CI. -pub fn run_pre_cache() -> Result<()> { - let slow_tests_cookie = Path::new("./target/.slow_tests_cookie"); - if !slow_tests_cookie.exists() { - panic!("slow tests were skipped on CI!") - } - rm_rf(slow_tests_cookie)?; - - for entry in Path::new("./target/debug").read_dir()? { - let entry = entry?; - if entry.file_type().map(|it| it.is_file()).ok() == Some(true) { - // Can't delete yourself on windows :-( - if !entry.path().ends_with("xtask.exe") { - rm_rf(&entry.path())? - } - } - } - - fs2::remove_file("./target/.rustc_info.json")?; - let to_delete = ["hir", "heavy_test", "xtask", "ide", "rust-analyzer"]; - for &dir in ["./target/debug/deps", "target/debug/.fingerprint"].iter() { - for entry in Path::new(dir).read_dir()? { - let entry = entry?; - if to_delete.iter().any(|&it| entry.path().display().to_string().contains(it)) { - // Can't delete yourself on windows :-( - if !entry.path().ends_with("xtask.exe") { - rm_rf(&entry.path())? - } - } - } - } - - Ok(()) -} - fn is_release_tag(tag: &str) -> bool { tag.len() == "2020-02-24".len() && tag.starts_with(|c: char| c.is_ascii_digit()) } diff --git a/xtask/src/main.rs b/xtask/src/main.rs index b69b884e5..fb38fdc92 100644 --- a/xtask/src/main.rs +++ b/xtask/src/main.rs @@ -17,9 +17,10 @@ use xtask::{ install::{ClientOpt, InstallCmd, Malloc, ServerOpt}, metrics::MetricsCmd, not_bash::pushd, + pre_cache::PreCacheCmd, pre_commit, project_root, release::{PromoteCmd, ReleaseCmd}, - run_clippy, run_fuzzer, run_pre_cache, run_rustfmt, Result, + run_clippy, run_fuzzer, run_rustfmt, Result, }; fn main() -> Result<()> { @@ -100,7 +101,7 @@ FLAGS: } "pre-cache" => { args.finish()?; - run_pre_cache() + PreCacheCmd.run() } "release" => { let dry_run = args.contains("--dry-run"); diff --git a/xtask/src/pre_cache.rs b/xtask/src/pre_cache.rs new file mode 100644 index 000000000..47ba6ba24 --- /dev/null +++ b/xtask/src/pre_cache.rs @@ -0,0 +1,80 @@ +use std::{ + fs::FileType, + path::{Path, PathBuf}, +}; + +use anyhow::Result; + +use crate::not_bash::{fs2, rm_rf}; + +pub struct PreCacheCmd; + +impl PreCacheCmd { + /// Cleans the `./target` dir after the build such that only + /// dependencies are cached on CI. + pub fn run(self) -> Result<()> { + let slow_tests_cookie = Path::new("./target/.slow_tests_cookie"); + if !slow_tests_cookie.exists() { + panic!("slow tests were skipped on CI!") + } + rm_rf(slow_tests_cookie)?; + + for path in read_dir("./target/debug", FileType::is_file)? { + // Can't delete yourself on windows :-( + if !path.ends_with("xtask.exe") { + rm_rf(&path)? + } + } + + fs2::remove_file("./target/.rustc_info.json")?; + + let to_delete = read_dir("./crates", FileType::is_dir)? + .into_iter() + .map(|path| path.file_name().unwrap().to_string_lossy().replace('-', "_")) + .collect::>(); + + for &dir in ["./target/debug/deps", "target/debug/.fingerprint"].iter() { + for path in read_dir(dir, |_file_type| true)? { + if path.ends_with("xtask.exe") { + continue; + } + let file_name = path.file_name().unwrap().to_string_lossy(); + let (stem, _) = match rsplit_once(&file_name, '-') { + Some(it) => it, + None => { + rm_rf(path)?; + continue; + } + }; + let stem = stem.replace('-', "_"); + if to_delete.contains(&stem) { + rm_rf(path)?; + } + } + } + + Ok(()) + } +} +fn read_dir(path: impl AsRef, cond: impl Fn(&FileType) -> bool) -> Result> { + read_dir_impl(path.as_ref(), &cond) +} + +fn read_dir_impl(path: &Path, cond: &dyn Fn(&FileType) -> bool) -> Result> { + let mut res = Vec::new(); + for entry in path.read_dir()? { + let entry = entry?; + let file_type = entry.file_type()?; + if cond(&file_type) { + res.push(entry.path()) + } + } + Ok(res) +} + +fn rsplit_once(haystack: &str, delim: char) -> Option<(&str, &str)> { + let mut split = haystack.rsplitn(2, delim); + let suffix = split.next()?; + let prefix = split.next()?; + Some((prefix, suffix)) +} -- cgit v1.2.3