Move linuxdeploy-specific helper out of desktop file class

src/core.cpp

@@ -39,7 +39,7 @@ namespace linuxdeploy {
             deployedDesktopFiles.begin(),
             deployedDesktopFiles.end(),
             [&firstDeployedDesktopFileName](const desktopfile::DesktopFile& desktopFile) {
-                auto fileName = desktopFile.path().filename().string();
+                auto fileName = desktopFile.path();
                 return fileName == firstDeployedDesktopFileName;
             }
         );
@@ -85,4 +85,34 @@ namespace linuxdeploy {
             return false;
         }
     }
+
+    bool addDefaultKeys(DesktopFile& desktopFile, const std::string& executableFileName) {
+        ldLog() << "Adding default values to desktop file:" << desktopFile.path() << std::endl;
+
+        auto rv = true;
+
+        auto setDefault = [&rv, &desktopFile](const std::string& section, const std::string& key, const std::string& value) {
+            if (desktopFile.entryExists(section, key)) {
+                DesktopFileEntry entry;
+
+                // this should never return false
+                auto entryExists = desktopFile.getEntry(section, key, entry);
+                assert(entryExists);
+
+                ldLog() << LD_WARNING << "Key exists, not modified:" << key << "(current value:" << entry.value() << LD_NO_SPACE << ")" << std::endl;
+                rv = false;
+            } else {
+                auto entryOverwritten = desktopFile.setEntry(section, DesktopFileEntry(key, value));
+                assert(!entryOverwritten);
+            }
+        };
+
+        setDefault("Desktop Entry", "Name", executableFileName);
+        setDefault("Desktop Entry", "Exec", executableFileName);
+        setDefault("Desktop Entry", "Icon", executableFileName);
+        setDefault("Desktop Entry", "Type", "Application");
+        setDefault("Desktop Entry", "Categories", "Utility;");
+
+        return rv;
+    }
 }

src/core.h

@@ -7,7 +7,7 @@
 
 namespace linuxdeploy {
     /**
-     * Deploy the application ".deskop", icon, and runnable files in the AppDir root path. According to the
+     * Deploy the application ".desktop", icon, and runnable files in the AppDir root path. According to the
      * AppDir spec at: https://docs.appimage.org/reference/appdir.html
      *
      * @param desktopFilePaths to be deployed in the AppDir root
@@ -17,4 +17,12 @@ namespace linuxdeploy {
      */
     bool deployAppDirRootFiles(std::vector<std::string> desktopFilePaths, std::string customAppRunPath,
                                linuxdeploy::core::appdir::AppDir& appDir);
+
+    /**
+     *
+     * @param desktopFile
+     * @param executableFileName
+     * @return
+     */
+    bool addDefaultKeys(desktopfile::DesktopFile& desktopFile, const std::string& executableFileName);
 }

src/main.cpp

@@ -245,7 +245,7 @@ int main(int argc, char** argv) {
         }
 
         desktopfile::DesktopFile desktopFile;
-        if (!desktopFile.addDefaultKeys(executableName)) {
+        if (!addDefaultKeys(desktopFile, executableName)) {
             ldLog() << LD_WARNING << "Tried to overwrite existing entries in desktop file:" << desktopFilePath << std::endl;
         }