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[APICORE-980] Propagate gdal error messages instead of completely obfuscating them #6

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[APICORE-980] Propagate gdal error messages instead of completely obfuscating them #6

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19 changes: 19 additions & 0 deletions gdal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -637,6 +637,25 @@ func Open(filename string, access Access) (Dataset, error) {
return Dataset{dataset}, nil
}

// Open an existing dataset
func OpenWithError(filename string, access Access) (Dataset, error) {
cFilename := C.CString(filename)
defer C.free(unsafe.Pointer(cFilename))

dataset := C.GDALOpen(cFilename, C.GDALAccess(access))
if dataset == nil {
// Look at the last error message:
// for 404, it should return a "HTTP response code: 404" message and code 3 (CE_Failure)
if C.CPLGetLastErrorType() != C.CE_None {
return Dataset{nil}, fmt.Errorf("Error: %s. dataset '%s' open error", C.GoString(C.CPLGetLastErrorMsg()), filename)

}
// Otherwise, revert to the default message:
return Dataset{nil}, fmt.Errorf("Error: dataset '%s' open error", filename)
}
return Dataset{dataset}, nil
}

// Open an existing dataset
func OpenEx(filename string, flags OpenFlag, allowedDrivers []string,
openOptions []string, siblingFiles []string) (Dataset, error) {
Expand Down