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[Simon Chopin <2113790@xxxxxxxxxxxxxxxxxx>]

I was supposed to just triage this, but this looked like a nice, easy
way to end the day on a win, so I just went ahead and investigated. The
regression was introduced in 2.0.0 when the upstream author did a major
refactoring. I wrote the smallest fix I could come up with, and sent the
patch to the upstream author (literally, sending them an email — ah, the
good old days...).

Attached is said patch. I'm waiting for their feedback before uploading,
but if someone wants to jump ahead go for it!

** Patch added: "0001-tree-list-call-printinfo-on-error-cases-too.patch"
   https://bugs.launchpad.net/ubuntu/+source/tree/+bug/2113790/+attachment/5883260/+files/0001-tree-list-call-printinfo-on-error-cases-too.patch

** Changed in: tree (Ubuntu)
       Status: Confirmed => Triaged

** Changed in: tree (Ubuntu)
     Assignee: (unassigned) => Simon Chopin (schopin)

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https://bugs.launchpad.net/bugs/2113790

Title:
  JSON and XML output broken if path invalid

Status in tree package in Ubuntu:
  Triaged

Bug description:
  using tree, if the target folder does not exist then the JSON or XML
  output options are broken.

  XML output (using input flag -X) has no open tag for the name field
  and a random close tag for 'unknown'.

  JSON output (using input flag -J) creates an array, the JSON object in
  the array has no open bracket and the entire 'type' key/value pair is
  missing. This makes the JSON object in the array start with a comma.

  
  This issue was discovered on Ubuntu 24.04.2 LTS using tree version v2.1.1
  Functionality is correct and as expected on another machine running Ubuntu 18.04.5 LTS using tree version v1.7.0

  Unfortunately I do not have another machine with anything newer than
  18.04.5 to test when the issue first appeared.

  ---------------------------------------------------------

  1.) $ lsb_release -rd
  No LSB modules are available.
  Description:    Ubuntu 24.04.2 LTS
  Release:        24.04

  2.) $ lsb_release -rd
  No LSB modules are available.
  Description:    Ubuntu 24.04.2 LTS
  Release:        24.04
  showhq@showhq-2025:/usr/lib/cgi-bin/tech$ tree --version
  tree v2.1.1 © 1996 - 2023 by Steve Baker, Thomas Moore, Francesc Rocher, Florian Sesser, Kyosuke Tokoro
  showhq@showhq-2025:/usr/lib/cgi-bin/tech$ apt-cache policy tree
  tree:
    Installed: 2.1.1-2ubuntu3
    Candidate: 2.1.1-2ubuntu3
    Version table:
   *** 2.1.1-2ubuntu3 500
          500 http://us.archive.ubuntu.com/ubuntu noble/universe amd64 Packages
          100 /var/lib/dpkg/status

  3.) Expected: same as v1.7.0 - valid JSON with the -J flag and valid
  XML with the -X flag.

  4.) Reality: Invalid JSON and XML

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