touch: use parse_datetime instead of humantime_to_duration

Cargo.toml

@@ -1,7 +1,7 @@
 # coreutils (uutils)
 # * see the repository LICENSE, README, and CONTRIBUTING files for more information
 
-# spell-checker:ignore (libs) libselinux gethostid procfs bigdecimal kqueue fundu mangen datetime uuhelp memmap
+# spell-checker:ignore (libs) bigdecimal datetime fundu gethostid kqueue libselinux mangen memmap procfs uuhelp
 
 [package]
 name = "coreutils"

src/uu/touch/Cargo.toml

@@ -1,4 +1,4 @@
-# spell-checker:ignore humantime
+# spell-checker:ignore datetime
 [package]
 name = "uu_touch"
 version = "0.0.19"
@@ -18,8 +18,7 @@ path = "src/touch.rs"
 [dependencies]
 filetime = { workspace = true }
 clap = { workspace = true }
-# TODO: use workspace dependency (0.3) when switching from time to chrono
-humantime_to_duration = "0.2.1"
+parse_datetime = { workspace = true }
 time = { workspace = true, features = [
   "parsing",
   "formatting",

src/uu/touch/src/touch.rs

@@ -84,13 +84,9 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     ) {
         (Some(reference), Some(date)) => {
             let (atime, mtime) = stat(Path::new(reference), !matches.get_flag(options::NO_DEREF))?;
-            if let Ok(offset) = humantime_to_duration::from_str(date) {
-                let mut seconds = offset.whole_seconds();
-                let mut nanos = offset.subsec_nanoseconds();
-                if nanos < 0 {
-                    nanos += 1_000_000_000;
-                    seconds -= 1;
-                }
+            if let Ok(offset) = parse_datetime::from_str(date) {
+                let seconds = offset.num_seconds();
+                let nanos = offset.num_nanoseconds().unwrap_or(0) % 1_000_000_000;
 
                 let ref_atime_secs = atime.unix_seconds();
                 let ref_atime_nanos = atime.nanoseconds();
@@ -445,9 +441,13 @@ fn parse_date(s: &str) -> UResult<FileTime> {
         }
     }
 
-    if let Ok(duration) = humantime_to_duration::from_str(s) {
+    if let Ok(duration) = parse_datetime::from_str(s) {
         let now_local = time::OffsetDateTime::now_local().unwrap();
-        let diff = now_local.checked_add(duration).unwrap();
+        let diff = now_local
+            .checked_add(time::Duration::nanoseconds(
+                duration.num_nanoseconds().unwrap(),
+            ))
+            .unwrap();
         return Ok(local_dt_to_filetime(diff));
     }