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feat: quit preview gracefully if Info.plist not found

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relikd
2025-11-06 01:52:05 +01:00
parent cfb6b17bc7
commit 21c21ec059
4 changed files with 24 additions and 3 deletions
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4
QLAppBundle.xcodeproj/project.pbxproj
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@@ -10,6 +10,7 @@
5405CF5E2EA1199B00613856 /* MetaInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF5D2EA1199B00613856 /* MetaInfo.swift */; };
5405CF652EA1376B00613856 /* Zip.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF642EA1376B00613856 /* Zip.swift */; };
5412DECE2EBC168600F9040D /* Preview+ArchiveInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5412DECD2EBC168600F9040D /* Preview+ArchiveInfo.swift */; };
5412DED02EBC283000F9040D /* RuntimeError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5412DECF2EBC283000F9040D /* RuntimeError.swift */; };
543FE5742EB3BB5E0059F98B /* AppIcon.icns in Resources */ = {isa = PBXBuildFile; fileRef = 543FE5732EB3BB5E0059F98B /* AppIcon.icns */; };
54442C232E378BAF008A870E /* Quartz.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 54442C222E378BAF008A870E /* Quartz.framework */; };
54442C702E378BDD008A870E /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 54442C6A2E378BDD008A870E /* AppDelegate.swift */; };
@@ -126,6 +127,7 @@
5405CF5D2EA1199B00613856 /* MetaInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MetaInfo.swift; sourceTree = "<group>"; };
5405CF642EA1376B00613856 /* Zip.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Zip.swift; sourceTree = "<group>"; };
5412DECD2EBC168600F9040D /* Preview+ArchiveInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Preview+ArchiveInfo.swift"; sourceTree = "<group>"; };
5412DECF2EBC283000F9040D /* RuntimeError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RuntimeError.swift; sourceTree = "<group>"; };
54352E8A2EB6A79A0082F61D /* AssetCarReader.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = AssetCarReader.framework; sourceTree = BUILT_PRODUCTS_DIR; };
543FE5732EB3BB5E0059F98B /* AppIcon.icns */ = {isa = PBXFileReference; lastKnownFileType = image.icns; path = AppIcon.icns; sourceTree = "<group>"; };
543FE5752EB3BC740059F98B /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -213,6 +215,7 @@
isa = PBXGroup;
children = (
5405CF5D2EA1199B00613856 /* MetaInfo.swift */,
5412DECF2EBC283000F9040D /* RuntimeError.swift */,
54D3A6EB2EA31B52001EF4F6 /* AppCategories.swift */,
54D3A6ED2EA39CC6001EF4F6 /* AppIcon.swift */,
5469E11C2EA5930C00D46CE7 /* Entitlements.swift */,
@@ -550,6 +553,7 @@
547F52F92EB2CBAB002B6D5F /* Date+Format.swift in Sources */,
54D3A6EC2EA31B52001EF4F6 /* AppCategories.swift in Sources */,
5405CF652EA1376B00613856 /* Zip.swift in Sources */,
5412DED02EBC283000F9040D /* RuntimeError.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

3
QLPreview/PreviewViewController.swift
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@@ -24,7 +24,8 @@ class PreviewViewController: NSViewController, QLPreviewingController {
func preparePreviewOfFile(at url: URL) async throws {
let meta = MetaInfo(url)
let html = PreviewGenerator(meta).generate(
// throws an exception if appPlist not found. Thus allowing another QuickLook plugin to try
let html = try PreviewGenerator(meta).generate(
template: try bundleFile(filename: "template", ext: "html"),
css: try bundleFile(filename: "style", ext: "css"),
)

6
src/PreviewGenerator.swift
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@@ -7,9 +7,11 @@ struct PreviewGenerator {
var data: [String: String] = [:] // used for TAG replacements
let meta: MetaInfo
init(_ meta: MetaInfo) {
init(_ meta: MetaInfo) throws {
self.meta = meta
let plistApp = meta.readPlistApp()
guard let plistApp = meta.readPlistApp() else {
throw RuntimeError("Info.plist not found")
}
let plistProvision = meta.readPlistProvision()
data["QuickLookTitle"] = stringForFileType(meta)

14
src/RuntimeError.swift Normal file
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@@ -0,0 +1,14 @@
import Foundation
// used to quit QuickLook generation without returning a valid preview
struct RuntimeError: LocalizedError {
let description: String
init(_ description: String) {
self.description = description
}
var errorDescription: String? {
description
}
}