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From 64f128c45687d18d64fc6856a30fde585b007e00 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sat, 15 May 2021 14:17:30 +0200
Subject: [PATCH] support building Miri outside a git repo
---
cargo-miri/bin.rs | 14 ++++++++------
cargo-miri/build.rs | 2 +-
2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/cargo-miri/bin.rs b/cargo-miri/bin.rs
index e29bdc771..84447b3a1 100644
--- a/src/tools/miri/cargo-miri/bin.rs
+++ b/src/tools/miri/cargo-miri/bin.rs
@@ -6,6 +6,7 @@ use std::io::{self, BufRead, BufReader, BufWriter, Read, Write};
use std::ops::Not;
use std::path::{Path, PathBuf};
use std::process::Command;
+use std::fmt::{Write as _};
use serde::{Deserialize, Serialize};
@@ -90,12 +91,13 @@ fn show_help() {
}
fn show_version() {
- println!(
- "miri {} ({} {})",
- env!("CARGO_PKG_VERSION"),
- env!("VERGEN_GIT_SHA_SHORT"),
- env!("VERGEN_GIT_COMMIT_DATE")
- );
+ let mut version = format!("miri {}", env!("CARGO_PKG_VERSION"));
+ // Only use `option_env` on vergen variables to ensure the build succeeds
+ // when vergen failed to find the git info.
+ if let Some(sha) = option_env!("VERGEN_GIT_SHA_SHORT") {
+ write!(&mut version, " ({} {})", sha, option_env!("VERGEN_GIT_COMMIT_DATE").unwrap()).unwrap();
+ }
+ println!("{}", version);
}
fn show_error(msg: String) -> ! {
diff --git a/cargo-miri/build.rs b/cargo-miri/build.rs
index cff135fe4..ebd8e7003 100644
--- a/src/tools/miri/cargo-miri/build.rs
+++ b/src/tools/miri/cargo-miri/build.rs
@@ -7,5 +7,5 @@ fn main() {
let mut gen_config = vergen::Config::default();
*gen_config.git_mut().sha_kind_mut() = vergen::ShaKind::Short;
*gen_config.git_mut().commit_timestamp_kind_mut() = vergen::TimestampKind::DateOnly;
- vergen(gen_config).expect("Unable to generate vergen keys!");
+ vergen(gen_config).ok(); // Ignore failure (in case we are built outside a git repo)
}
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