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[xdg_directories] Return null from getUserDirectory instead of throwing exception (#3033)

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* fix: xdg.getUserDirectory to return null on missing executable

* Update changelog

* Fix review comments
This commit is contained in:
Lukas Klingsbo
2023-01-10 22:17:54 +01:00
committed by GitHub
parent e966fe54c8
commit b4bce7db3e
4 changed files with 27 additions and 2 deletions
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4
packages/xdg_directories/CHANGELOG.md
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@ -1,3 +1,7 @@
## 0.2.0+3
* Returns null instead of throwing exception from getUserDirectory when xdg-user-dir executable is missing.
## 0.2.0+2
* Fixes unit tests on Windows.

5
packages/xdg_directories/lib/xdg_directories.dart
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@ -149,7 +149,12 @@ Directory? get runtimeDir => _directoryFromEnvironment('XDG_RUNTIME_DIR');
/// Gets the xdg user directory named by `dirName`.
///
/// Use [getUserDirectoryNames] to find out the list of available names.
///
/// If the `xdg-user-dir` executable is not present this returns null.
Directory? getUserDirectory(String dirName) {
if (!_processManager.canRun('xdg-user-dir')) {
return null;
}
final ProcessResult result = _processManager.runSync(
<String>['xdg-user-dir', dirName],
stdoutEncoding: utf8,

2
packages/xdg_directories/pubspec.yaml
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@ -2,7 +2,7 @@ name: xdg_directories
description: A Dart package for reading XDG directory configuration information on Linux.
repository: https://github.com/flutter/packages/tree/main/packages/xdg_directories
issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+xdg_directories%22
version: 0.2.0+2
version: 0.2.0+3
environment:
sdk: ">=2.12.0 <3.0.0"

18
packages/xdg_directories/test/xdg_directories_test.dart
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@ -113,6 +113,16 @@ XDG_VIDEOS_DIR="$HOME/Videos"
xdg.xdgProcessManager = const LocalProcessManager();
});
test('Returns null when xdg-user-dir executable is not present', () {
xdg.xdgProcessManager = FakeProcessManager(
<String, String>{},
canRunExecutable: false,
);
expect(xdg.getUserDirectory('DESKTOP'), isNull,
reason: 'Found xdg user directory without access to xdg-user-dir');
xdg.xdgProcessManager = const LocalProcessManager();
});
test('Throws StateError when HOME not set', () {
fakeEnv.clear();
expect(() {
@ -122,9 +132,10 @@ XDG_VIDEOS_DIR="$HOME/Videos"
}
class FakeProcessManager extends Fake implements ProcessManager {
FakeProcessManager(this.expected);
FakeProcessManager(this.expected, {this.canRunExecutable = true});
Map<String, String> expected;
final bool canRunExecutable;
@override
ProcessResult runSync(
@ -138,4 +149,9 @@ class FakeProcessManager extends Fake implements ProcessManager {
}) {
return ProcessResult(0, 0, expected[command[1]], '');
}
@override
bool canRun(dynamic executable, {String? workingDirectory}) {
return canRunExecutable;
}
}