initial commit

Signed-off-by: Alex Chi <iskyzh@gmail.com>

xtask/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "mini-lsm-xtask"
+version = { workspace = true }
+edition = { workspace = true }
+homepage = { workspace = true }
+keywords = { workspace = true }
+license = { workspace = true }
+repository = { workspace = true }
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1"
+console = "0.15"
+clap = { version = "4", features = ["derive"] }
+duct = "0.13"

xtask/src/main.rs

@@ -0,0 +1,65 @@
+use std::path::PathBuf;
+
+use anyhow::{anyhow, Result};
+use clap::Parser;
+use console::style;
+use duct::cmd;
+
+#[derive(clap::Subcommand, Debug)]
+enum Action {
+    /// Check.
+    Check,
+    /// Install necessary tools for development.
+    InstallTools,
+    /// Show environment variables.
+    Show,
+}
+
+/// Simple program to greet a person
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    #[command(subcommand)]
+    action: Action,
+}
+
+fn switch_to_workspace_root() -> Result<()> {
+    std::env::set_current_dir(
+        PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+            .parent()
+            .ok_or_else(|| anyhow!("failed to find the workspace root"))?,
+    )?;
+    Ok(())
+}
+
+fn main() -> Result<()> {
+    let args = Args::parse();
+
+    match args.action {
+        Action::InstallTools => {
+            println!("{}", style("cargo install cargo-nextest").bold());
+            cmd!("cargo", "install", "cargo-nextest", "--locked").run()?;
+            println!("{}", style("cargo install mdbook mdbook-toc").bold());
+            cmd!("cargo", "install", "mdbook", "mdbook-toc", "--locked").run()?;
+        }
+        Action::Check => {
+            switch_to_workspace_root()?;
+            println!("{}", style("cargo fmt").bold());
+            cmd!("cargo", "fmt").run()?;
+            println!("{}", style("cargo check").bold());
+            cmd!("cargo", "check", "--all-targets").run()?;
+            println!("{}", style("cargo nextest run").bold());
+            cmd!("cargo", "nextest", "run").run()?;
+            println!("{}", style("cargo clippy").bold());
+            cmd!("cargo", "clippy", "--all-targets").run()?;
+            println!("{}", style("mdbook build").bold());
+            cmd!("mdbook", "build").dir("mini-lsm-book").run()?;
+        }
+        Action::Show => {
+            println!("CARGO_MANIFEST_DIR={}", env!("CARGO_MANIFEST_DIR"));
+            println!("PWD={:?}", std::env::current_dir()?);
+        }
+    }
+
+    Ok(())
+}