https://bugs.kde.org/show_bug.cgi?id=479268
Bug ID: 479268
Summary: Provide helpful info on why exiftool is not recognised
Classification: Applications
Product: digikam
Version: 8.1.0
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: Metadata-ExifTool
Assignee: digikam-bugs-n...@kde.org
Reporter: thibault.lema...@protonmail.com
Target Milestone: ---
Created attachment 164600
--> https://bugs.kde.org/attachment.cgi?id=164600&action=edit
File picker detecting exiftool, but tooltip reading "binary not found."
SUMMARY
digiKam gives very little information as to why `exiftool` is not found, and
that information was wrong in my case as exiftool **was** found, it just did
not work correctly.
STEPS TO REPRODUCE
1. Change one of your locale settings to something that's not installed on your
system (e.g. in KDE System Settings > Region & Language > Currency)
2. Log out and back in
3. In digiKam, go to Settings > configure digiKam... > Metadata > ExifTool and
witness the binary not being found.
or alternatively, just hack exiftool to output garbage (it's just a perl script
after all)
OBSERVED RESULT
Hovering the 🚫 symbol next to `exiftool` shows a tooltip with the text "binary
not found."
EXPECTED RESULT
At least show "binary not recognised" instead, when the binary exists but emits
unexpected output.
And better yet: Show the attempted command and its resulting output to the
user.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.1.69-xanmod1 (64-bit)
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.112.0
Qt Version: 5.15.11
ADDITIONAL INFORMATION
I have `exiftool` installed, yet digikam does not detect it. I opened the file
picker dialogue, found the location of the binary (which was correctly
detected/filtered by the file picker) and selected it. The file picker closed,
as if satisfied, but I was left with a blank ExifTool tab, and the unhelpful
tooltip "binary not found."
I say "unhelpful" for 2 reasons:
1. It is not obvious to me that you have to hover over the 🚫 icon to get
information on what went wrong
2. I actually found the issue, and it wasn't that the binary was not found, but
rather that it did not output what digiKam was expecting:
```sh
❯ exiftool -ver
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "",
LC_ALL = (unset),
LC_MONETARY = "fr_FR.UTF-8",
LANG = "en_GB.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_GB.UTF-8").
12.70
```
exiftool is actually working perfectly fine, but just outputting garbage that
(I guess) digiKam cannot parse. Thankfully once I had identified the issue,
fixing it was pretty easy.
But the logical path from "digiKam cannot not find `exiftool`" to "you have an
issue with your locale settings" was really not obvious and I just spent the
better part of day investigating that. I would have probably given up
immediately hadn't I had another machine on which digiKam recognised `exiftool`
out of the box.
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