Add --cmd parameter to main UI executable

[fmoc]

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Feature description

Continuation #10888.

Instead of using the AppRun AppImage entrypoint to provide a --cmd parameter to launch the commandline application (and thus provide an AppImage-only solution), the main UI should receive a --cmd parameter. This way, we provide a unified user experience in all of our distributions.

Proposed solution

--cmd should launch the commandline application (ideally with exec*, otherwise a subprocess might do as well). We need to make sure that --cmd is the first argument passed to the application (i.e., make it position sensitive).

Alternative solutions you considered

No response

Additional context

No response

[saw-jan]

Tested with ownCloud ownCloud 5.0.0.11624-daily20230801

owncloud appImage ✔️

./ownCloud-5.0.0.11624-daily20230801-x86_64.AppImage --cmd --help

output

m_crashReporterChar:  /tmp/.mount_ownCloKNfR0j/usr/bin/owncloud_crash_reporter
Usage: /tmp/.mount_ownCloKNfR0j/usr/bin/owncloudcmd [options] source_dir server_url remote_folder
owncloudcmd version 5.0.0.11624-daily20230801 - 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
  --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

owncloud gui ✔️

owncloud --cmd --help

output

m_crashReporterChar:  /opt/owncloud.AppDir/usr/bin/owncloud_crash_reporter
Usage: /opt/owncloud.AppDir/usr/bin/owncloudcmd [options] source_dir server_url remote_folder
owncloudcmd version 5.0.0.11624-daily20230801 - 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
  --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

[saw-jan]

owncloud.exe ❌

./owncloud.exe --cmd --help

❗ gives nothing but opens a terminal which gets closed after sometime

CC @TheOneRing

[TheOneRing]

The client was crashing during startup, even before the crash reporter was set up.
Please try again once #11076 was merged.

[saw-jan]

Tested with ownCloud 5.0.0.11640-daily20230803

owncloud.exe ✔️