Try to parse time with " 00:00:00" appended

This makes it a bit easier to only specify a date.
If the parsing fails (e.g. with "2020-01-01"), this patch adds another step of
parsing by adding " 00:00:00" to the commandline argument and trying again to
parse.

This way, the CLI argument can be "2020-01-01" and the time does not have to be
specified.

Signed-off-by: Matthias Beyer <matthias.beyer@atos.net>
Tested-by: Matthias Beyer <matthias.beyer@atos.net>

2 files changed, 15 insertions, 0 deletions

diff --git a/src/cli.rs b/src/cli.rs
index f2ae0ac..018415d 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1260,6 +1260,7 @@ fn arg_older_than_date(about: &str) -> Arg<'_> {
         .long_about(r#"
             DATE can be a freeform date, for example '2h'
             It can also be a exact date: '2020-01-01 00:12:45'
+            If the hour-minute-second part is omitted, " 00:00:00" is appended automatically.
 
             Supported suffixes:
 
@@ -1290,6 +1291,7 @@ fn arg_newer_than_date(about: &str) -> Arg<'_> {
         .long_about(r#"
             DATE can be a freeform date, for example '2h'
             It can also be a exact date: '2020-01-01 00:12:45'
+            If the hour-minute-second part is omitted, " 00:00:00" is appended automatically.
 
             Supported suffixes:
 
@@ -1318,6 +1320,12 @@ fn parse_date_from_string(s: &str) -> std::result::Result<(), String> {
                 .map_err(|e| e.to_string())
                 .map(|_| ())
         })
+        .or_else(|_| {
+            let s = format!("{} 00:00:00", s);
+            humantime::parse_rfc3339_weak(&s)
+                .map_err(|e| e.to_string())
+                .map(|_| ())
+        })
 }
 
 fn parse_usize(s: &str) -> std::result::Result<(), String> {
diff --git a/src/commands/util.rs b/src/commands/util.rs
index beebfc5..acfbdd2 100644
--- a/src/commands/util.rs
+++ b/src/commands/util.rs
@@ -237,6 +237,13 @@ pub fn get_date_filter(name: &str, matches: &ArgMatches) -> Result<Option<chrono
                         .map_err(Error::from)
                         .and_then(|d| d.elapsed().map_err(Error::from))
                 })
+                .or_else(|_| {
+                    let s = format!("{} 00:00:00", s);
+                    trace!("Parsing time: '{}'", s);
+                    humantime::parse_rfc3339_weak(&s)
+                        .map_err(Error::from)
+                        .and_then(|d| d.elapsed().map_err(Error::from))
+                })
         })
         .transpose()?
         .map(chrono::Duration::from_std)