From 5a012fb9fd87404515033b2a5e025f2b7ec44b29 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 9 Dec 2019 15:59:04 +0100
Subject: [PATCH] Implement `ra_lsp_server --version`
---
crates/ra_lsp_server/build.rs | 15 +++++++++++++++
crates/ra_lsp_server/src/main.rs | 18 +++++++++++++++++-
2 files changed, 32 insertions(+), 1 deletion(-)
create mode 100644 crates/ra_lsp_server/build.rs
diff --git a/crates/ra_lsp_server/build.rs b/crates/ra_lsp_server/build.rs
new file mode 100644
index 00000000000..05f9772c041
--- /dev/null
+++ b/crates/ra_lsp_server/build.rs
@@ -0,0 +1,15 @@
+//! Just embed git-hash to `--version`
+
+use std::process::Command;
+
+fn main() {
+ let rev = rev().unwrap_or_else(|| "???????".to_string());
+ println!("cargo:rustc-env=REV={}", rev)
+}
+
+fn rev() -> Option<String> {
+ let output = Command::new("git").args(&["rev-parse", "HEAD"]).output().ok()?;
+ let stdout = String::from_utf8(output.stdout).ok()?;
+ let short_hash = stdout.get(0..7)?;
+ Some(short_hash.to_owned())
+}
diff --git a/crates/ra_lsp_server/src/main.rs b/crates/ra_lsp_server/src/main.rs
index 8076a7fa5cb..cdd925c9f3e 100644
--- a/crates/ra_lsp_server/src/main.rs
+++ b/crates/ra_lsp_server/src/main.rs
@@ -6,7 +6,10 @@ use ra_prof;
fn main() -> Result<()> {
setup_logging()?;
- run_server()?;
+ match Args::parse()? {
+ Args::Version => println!("rust-analyzer {}", env!("REV")),
+ Args::Run => run_server()?,
+ }
Ok(())
}
@@ -22,6 +25,19 @@ fn setup_logging() -> Result<()> {
Ok(())
}
+enum Args {
+ Version,
+ Run,
+}
+
+impl Args {
+ fn parse() -> Result<Args> {
+ let res =
+ if std::env::args().any(|it| it == "--version") { Args::Version } else { Args::Run };
+ Ok(res)
+ }
+}
+
fn run_server() -> Result<()> {
log::info!("lifecycle: server started");