From 87cece7e01d0e5de17cd9493b3a83fada25142d3 Mon Sep 17 00:00:00 2001
From: Tshepang Mbambo <tshepang@gmail.com>
Date: Sun, 14 Aug 2022 16:30:07 +0200
Subject: [PATCH 1/2] make date-check more easy to use

One could not run it like the following, for the would be a panic:

    cargo run --manifest-path ci/date-check/Cargo.toml .

Also, remove the need to specify argument, in which case, current_dir
is assumed.
---
 ci/date-check/src/main.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/ci/date-check/src/main.rs b/ci/date-check/src/main.rs
index bb3542f24..ea8b24315 100644
--- a/ci/date-check/src/main.rs
+++ b/ci/date-check/src/main.rs
@@ -124,9 +124,7 @@ fn filter_dates(
 }
 
 fn main() {
-    let root_dir = env::args()
-        .nth(1)
-        .expect("expect root Markdown directory as CLI argument");
+    let root_dir = env::args().nth(1).unwrap_or(".".into());
     let root_dir_path = Path::new(&root_dir);
     let glob_pat = format!("{}/**/*.md", root_dir);
     let today_chrono = Utc::today();
@@ -167,7 +165,7 @@ fn main() {
         for (path, dates) in dates_by_file {
             println!(
                 "- [ ] {}",
-                path.strip_prefix(&root_dir_path).unwrap().display()
+                path.strip_prefix(&root_dir_path).unwrap_or(&path).display(),
             );
             for (line, date) in dates {
                 println!("  - [ ] line {}: {}", line, date);

From aeff3a69636005fcd0317b7b6db26f271d49f7f1 Mon Sep 17 00:00:00 2001
From: Tshepang Mbambo <tshepang@gmail.com>
Date: Fri, 19 Aug 2022 07:19:14 +0200
Subject: [PATCH 2/2] address review comment

https://github.com/rust-lang/rustc-dev-guide/pull/1428#discussion_r948143840
---
 ci/date-check/src/main.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/ci/date-check/src/main.rs b/ci/date-check/src/main.rs
index ea8b24315..70fce8b1c 100644
--- a/ci/date-check/src/main.rs
+++ b/ci/date-check/src/main.rs
@@ -3,6 +3,7 @@ use std::{
     convert::TryInto as _,
     env, fmt, fs,
     path::{Path, PathBuf},
+    process,
     str::FromStr,
 };
 
@@ -124,7 +125,12 @@ fn filter_dates(
 }
 
 fn main() {
-    let root_dir = env::args().nth(1).unwrap_or(".".into());
+    let mut args = env::args();
+    if args.len() == 1 {
+        eprintln!("error: expected root Markdown directory as CLI argument");
+        process::exit(1);
+    }
+    let root_dir = args.nth(1).unwrap();
     let root_dir_path = Path::new(&root_dir);
     let glob_pat = format!("{}/**/*.md", root_dir);
     let today_chrono = Utc::today();