Allow setting VSI credentials when loading OGR/GDAL layers #57826
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Extends decode/encodeUri to handle credential options. This is modeled off the existing support for storing open options. When credential options are found in a layer's URI, we use GDAL's VSISetPathSpecificOption to set the credential option for that VSI driver and bucket. This allows per-vsi driver & bucket credentials for GDAL/OGR layers, whereas other approaches (like environment variable setting) force a single set of credentials to be used for an entire QGIS session. Requires GDAL 3.5+
- Don't rely on translated combo box strings, use item data instead - Reduce duplicate code - Add missing Hadoop option - Avoid unnecessary string list creation/splitting when populating combos
A resuable widget for configuration GDAL credential options for vsi file systems
Allows users to configure credentials to use when connecting to GDAL cloud storage providers, e.g. AWS
nyalldawson
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@nyalldawson , that's really nice. The limited one credential (via environment variables) was making it really hard to enjoy cloud hosted datasets before |
agiudiceandrea
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@nyalldawson A documentation ticket will be opened at https://github.com/qgis/QGIS-Documentation when this PR is merged. Please update the description (not the comments) with helpful description and screenshot to help the work from documentors. Thank you! |
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@nyalldawson |
zacharlie
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This PR exposes the VSI credential options for user control when adding OGR vector/GDAL raster layers from the Data Source Manager, eg:
The underlying provider changes were discussed in #57801. When credential options are found in a layer's URI, we use GDAL's VSISetPathSpecificOption to set the credential option for that VSI driver and bucket.
This allows per-vsi driver & bucket credentials for layers, whereas other approaches (like environment variable setting) force a single set of credentials to be used for an entire QGIS session. (And are difficult for users to set)
I've also taken the opportunity to cleanup a bunch of code relating to how VSI protocols are exposed in GUI, and how GUIs for GDAL configuration options are dynamically created.
Requires GDAL 3.5+