Add support for environment variables and unix shortcuts in appsettings.json path.

This commit is contained in:
Michael Bucari-Tovo 2023-08-30 11:47:50 -06:00
parent 49775b019c
commit d7f3758ebc

View File

@ -6,6 +6,7 @@ using Newtonsoft.Json.Linq;
using Newtonsoft.Json;
using Serilog;
using Dinah.Core.Logging;
using System.Diagnostics;
#nullable enable
namespace LibationFileManager
@ -75,17 +76,19 @@ namespace LibationFileManager
const string appsettings_filename = "appsettings.json";
//Possible appsettings.json locations, in order of preference.
string[] possibleAppsettingsFiles = new[]
string[] possibleAppsettingsDirectories = new[]
{
Path.Combine(ProcessDirectory, appsettings_filename),
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Libation", appsettings_filename),
Path.Combine(UserProfile, appsettings_filename),
Path.Combine(Path.GetTempPath(), "Libation", appsettings_filename)
ProcessDirectory,
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Libation"),
UserProfile,
Path.Combine(Path.GetTempPath(), "Libation")
};
//Try to find and validate appsettings.json in each folder
foreach (var appsettingsFile in possibleAppsettingsFiles)
foreach (var dir in possibleAppsettingsDirectories)
{
var appsettingsFile = Path.Combine(dir, appsettings_filename);
if (File.Exists(appsettingsFile))
{
try
@ -104,11 +107,13 @@ namespace LibationFileManager
//Valid appsettings.json not found. Try to create it in each folder.
var endingContents = new JObject { { LIBATION_FILES_KEY, UserProfile } }.ToString(Formatting.Indented);
foreach (var appsettingsFile in possibleAppsettingsFiles)
foreach (var dir in possibleAppsettingsDirectories)
{
var appsettingsFile = Path.Combine(dir, appsettings_filename);
try
{
Directory.CreateDirectory(Path.GetDirectoryName(appsettingsFile)!);
Directory.CreateDirectory(dir);
File.WriteAllText(appsettingsFile, endingContents);
return appsettingsFile;
}
@ -122,16 +127,56 @@ namespace LibationFileManager
}
private static string getLibationFilesSettingFromJson()
{
// do not check whether directory exists. special/meta directory (eg: AppDir) is valid
// verify from live file. no try/catch. want failures to be visible
var jObjFinal = JObject.Parse(File.ReadAllText(AppsettingsJsonFile));
{
// do not check whether directory exists. special/meta directory (eg: AppDir) is valid
// verify from live file. no try/catch. want failures to be visible
var jObjFinal = JObject.Parse(File.ReadAllText(AppsettingsJsonFile));
if (jObjFinal[LIBATION_FILES_KEY]?.Value<string>() is not string valueFinal)
throw new InvalidDataException($"{LIBATION_FILES_KEY} not found in {AppsettingsJsonFile}");
return valueFinal;
}
if (IsWindows)
{
valueFinal = Environment.ExpandEnvironmentVariables(valueFinal);
}
else
{
//If the shell command fails and returns null, proceed with the verbatim
//LIBATION_FILES_KEY path and hope for the best. If Libation can't find
//anything at this path it will set LIBATION_FILES_KEY to UserProfile
valueFinal = runShellCommand("echo " + valueFinal) ?? valueFinal;
}
return valueFinal;
static string? runShellCommand(string command)
{
var psi = new ProcessStartInfo
{
FileName = "/bin/sh",
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true,
ArgumentList =
{
"-c",
command
}
};
try
{
var proc = Process.Start(psi);
proc?.WaitForExit();
return proc?.StandardOutput?.ReadToEnd()?.Trim();
}
catch (Exception e)
{
Serilog.Log.Error(e, "Failed to run shell command. {Arguments}", psi.ArgumentList);
return null;
}
}
}
public static void SetLibationFiles(string directory)
{