Allow other file extensions than zip about sozip-spec

[rouault]

you need to use the curl brackets { }

ogrinfo "/vsizip/{c:\data\myproject.qgz}/myproject.gpkg"

[rouault]

/vsizip/ refuses to open the datasource, if the file extension is different than .zip.

actually, you can open a zip file with any extension. Cf https://gdal.org/user/virtual_file_systems.html#vsizip-zip-archives :
"an alternate syntax is available so as to enable chaining and not being dependent on .zip extension, e.g.: /vsizip/{/path/to/the/archive}/path/inside/the/zip/file. Note that /path/to/the/archive may also itself use this alternate syntax."

[cxcandid]

Wow Even, I have never received such a quick response! thanx a lot 😀

[cxcandid]

Unfortunately ogrinfo and QGIS refuse to open a SOZIP datasource inside a .qgz file (Windows 10).
If I rename the file extension to .zip everything works like expected.

ogrinfo "/vsizip/c:\data\myproject.qgz\myproject.gpkg"

QGIS ogr datasource URI:

/vsizip/c:/data/myproject.qgz/myproject.gpkg|layername=test

[cxcandid]

Arrgg ... totally missed the brackets ... thanx again!

This is really cool ... even works with relative paths (i.e. "/vsizip/{./myproject.qgz}/myproject.gpkg|layername=test")