Better error message for `error: No such file or directory (os error 2)`

[lescx]

I try to rename episode names of a series using a JSON map.

When running nomino, it returns the following error:

$ nomino -ktmp renamed.json 
error: No such file or directory (os error 2)

I cannot debug where the actual issue is. I would like a more verbose error message.

episodes.json
{
 "Season 01/Episode 01.mp4": "Season01/Episode 01 - Echoes of Thunder.mp4",
 "Season 01/Episode 02.mp4": "Season 01/Episode 02 - What Is Done.mp4",
 "…": "…",
 "Season 05/Episode 09.mp4": "Season05/Episode 09 - Infantis Sanguine.mp4"
}

╭─[/mnt/Series/The Dragon Prince]
╰──╼ls
 renamed.json  'Season 01'  'Season 02'  'Season 03'  'Season 04'  'Season 05'
╭─[/mnt/Series/The Dragon Prince]
╰──╼ls Season\ 01/
'Episode 01.mp4'  'Episode 02.mp4'  'Episode 03.mp4'  'Episode 04.mp4'  'Episode 05.mp4'  'Episode 06.mp4'  'Episode 07.mp4'  'Episode 08.mp4'  'Episode 09.mp4'   Subs

OS: Debian 12 nomino: v.1.3.4

[lescx]

Or another example I encountered:

nomino -pe "Season .*/.*S(\d+)E(\d+) \- (\w+.*) \(.*" "Season {:2}/Episode {:2} - {}"                                                                                                
[error] unable to rename 'Season 2/Avatar The Last Airbender (2005) - S02E05 - Avatar Day (1080p WEB-DL x265 RCVR).mkv': No such file or directory (os error 2)                          
[error] unable to rename 'Season 2/Avatar The Last Airbender (2005) - S02E10 - The Library (1080p WEB-DL x265 RCVR).mkv': No such file or directory (os error 2)                         
[error] unable to rename 'Season 2/Avatar The Last Airbender (2005) - S02E17 - Lake Laogai (1080p WEB-DL x265 RCVR).mkv': No such file or directory (os error 2)
…

$ ls
'Season 1'  'Season 2'  'Season 3'
$ ls Season\ 1/
'Avatar The Last Airbender (2005) - S01E01 - The Boy in the Iceberg (1080p WEB-DL x265 RCVR).mkv'
'Avatar The Last Airbender (2005) - S01E02 - The Avatar Returns (1080p WEB-DL x265 RCVR).mkv'
'Avatar The Last Airbender (2005) - S01E03 - The Southern Air Temple (1080p WEB-DL x265 RCVR).mkv'
'Avatar The Last Airbender (2005) - S01E04 - The Warriors of Kyoshi (1080p WEB-DL x265 RCVR).mkv'

Still, it seems to work when I test it.

nomino -pet "Season .*/.*S(\d+)E(\d+) \- (\w+.*) \(.*" "Season {:2}/Episode {:2} - {}"
| Season 1/Avatar The Last Airbender (2005) - S01E01 - The Boy in the Iceberg (1080p WEB-DL x265 RCVR).mkv               | Season 01/Episode 01 - The Boy in the Iceberg.mkv               |
| Season 1/Avatar The Last Airbender (2005) - S01E02 - The Avatar Returns (1080p WEB-DL x265 RCVR).mkv                   | Season 01/Episode 02 - The Avatar Returns.mkv                   |
| Season 1/Avatar The Last Airbender (2005) - S01E03 - The Southern Air Temple (1080p WEB-DL x265 RCVR).mkv              | Season 01/Episode 03 - The Southern Air Temple.mkv              |
| Season 1/Avatar The Last Airbender (2005) - S01E04 - The Warriors of Kyoshi (1080p WEB-DL x265 RCVR).mkv               | Season 01/Episode 04 - The Warriors of Kyoshi.mkv               |

In this case I know I should add the -k parameter. We could add an error message like: Please add -k parameter. Adding the -k parameter in the first example does not work.