[AppImage] use owncloudcmd

[michaelstingl]

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Feature description

ownCloud provides a Command Line Client, and users would like to use it from the AppImage too.

Proposed solution

As I understood, there are multiple options.

(1) Document workaround: extract AppImage?

This is ugly, but already works today.

(2) AppImage entrypoint

@fmoc please elaborate. Link to AppImage docs?

(3) Add non-GUI CLI parameter to owncloud binary

@fmoc more a mid-term approach? (5.0+)

Alternative solutions you considered

No response

Additional context

@fmoc @TheOneRing POC doable in the context of 4.1?

[michaelstingl]

(2) AppImage entrypoint

@fmoc please elaborate. Link to AppImage docs?

POC should be doable for the 4.1 🤞

[michaelstingl]

(3) Add non-GUI CLI parameter to owncloud binary

@fmoc more a mid-term approach? (5.0+)

➡️ doable for 5.0, but needs some more changes. (parse CLI before GUI init etc)

@fmoc @TheOneRing new issue or keep this one?

[TheOneRing]

owncloud/craft-blueprints-owncloud#32

[saw-jan]

Tested with 4.1

$ ./ownCloud-4.1.0.11174-daily20230606-x86_64.AppImage --cmd --help             
Usage: /tmp/.mount_ownCloCfTcfC/usr/bin/owncloudcmd [options] source_dir server_url remote_folder
owncloudcmd version 4.1.0.11174-daily20230606 - command line client tool

Options:
  -s, --silent                      Don't be so verbose.
  --httpproxy <http://server:port>  Specify a http proxy to use.
  --trust                           Trust the SSL certification
  --exclude <file>                  Path to an exclude list [file]
  --unsyncedfolders <file>          File containing the list of unsynced remote
                                    folders (selective sync)
  --server <url>                    Use [url] as the location of the server.
                                    OCIS only (server location and spaces url
                                    can differ)
  -u, --user <name>                 Use [name] as the login name
  -p, --password <password>         Use [pass] as password
  -n                                Use netrc (5) for login
  --non-interactive                 Do not block execution with interaction
  --max-sync-retries <n>            Retries maximum n times (default to 3)
  --uplimit <n>                     Limit the upload speed of files to n KB/s
  --downlimit <n>                   Limit the download speed of files to n KB/s
  --sync-hidden-files               Enables synchronization of hidden files
  --logdebug                        More verbose logging
  -h, --help                        Displays help on commandline options.
  --help-all                        Displays help including Qt specific
                                    options.
  -v, --version                     Displays version information.

Arguments:
  source_dir                        The source dir
  server_url                        The url to the server
  remote_folder                     A remote folder