static string Sources(string s) => Path.Combine(s, "runtimes", GdalBaseExtensions.GetEnvRID(), "native");
/// <summary>
/// Performs search for proj.db in project directories and sets search paths for Proj.
/// You can call <see cref="OSGeo.OSR.Osr.SetPROJSearchPaths"/> alternatively.
/// </summary>
/// <param name="additionalSearchPaths">optional additional paths</param>
public static void Configure(params string[] additionalSearchPaths)
{
const string libshared = "maxrev.gdal.core.libshared";
var runtimes = $"runtimes/{GdalBaseExtensions.GetEnvRID()}/native";
var entryAsm = Assembly.GetEntryAssembly() ?? Assembly.GetCallingAssembly();
try
{
// assembly location can be empty with bundled assemblies
var entryRoot =
new FileInfo(entryAsm.GetSourceLocation())
.Directory !.FullName;
var executingRoot =
new FileInfo(Assembly.GetExecutingAssembly().GetSourceLocation())
.Directory !.FullName;
// this list is sorted according to expected
// contents location related to
// published binaries location
var possibleLocations = new[]
{
// test runner use this and docker containers
Path.Combine(executingRoot, runtimes, libshared),
Path.Combine(executingRoot, libshared),
// self-contained published package
// with custom working directory
Path.Combine(entryRoot, runtimes, libshared),
Path.Combine(entryRoot, libshared),
// azure functions
Path.Combine(executingRoot, "..", runtimes, libshared),
// These cases are last hope solututions:
// some environments may have flat structure
// let's try to search in root directories
entryRoot,
executingRoot,
runtimes,
libshared,
}.Select(x => new DirectoryInfo(x).FullName);
string found = "";
foreach (var item in possibleLocations)
{
if (!Directory.Exists(item))
{
continue;
}
var search = Directory.EnumerateFiles(item, "proj.db");
if (search.Any())
{
found = item;
break;
}
}
if (found != "")
{
OSGeo.OSR.Osr.SetPROJSearchPaths(new[] { found }.Concat(additionalSearchPaths).ToArray());
return;
}
// we did not found anything
throw new FileNotFoundException($"Can't find proj.db. Tried to search in {string.Join(", ", possibleLocations)}");
}
catch (Exception ex) when(ex is not FileNotFoundException)
{
Console.WriteLine($"Failed to configure PROJ search paths. {ex.GetType().Name} was thrown");
Console.WriteLine(ex.Message);
}
}