rewrote config file path search (#219)

added comment to clarify coding choices

added package xdg to vendor folder

rewrote config file path search

Co-authored-by: crapStone <crapstone01@gmail.com>
Reviewed-on: https://gitea.com/gitea/tea/pulls/219
Reviewed-by: 6543 <6543@noreply.gitea.io>
Reviewed-by: Norwin <noerw@noreply.gitea.io>

vendor/github.com/adrg/xdg/paths_windows.go

@@ -0,0 +1,69 @@
+package xdg
+
+import (
+	"os"
+	"path/filepath"
+)
+
+func initBaseDirs(home string) {
+	appDataDir := os.Getenv("APPDATA")
+	if appDataDir == "" {
+		appDataDir = filepath.Join(home, "AppData")
+	}
+	roamingAppDataDir := filepath.Join(appDataDir, "Roaming")
+
+	localAppDataDir := os.Getenv("LOCALAPPDATA")
+	if localAppDataDir == "" {
+		localAppDataDir = filepath.Join(appDataDir, "Local")
+	}
+
+	programDataDir := os.Getenv("PROGRAMDATA")
+	if programDataDir == "" {
+		if systemDrive := os.Getenv("SystemDrive"); systemDrive != "" {
+			programDataDir = filepath.Join(systemDrive, "ProgramData")
+		} else {
+			programDataDir = home
+		}
+	}
+
+	winDir := os.Getenv("windir")
+	if winDir == "" {
+		winDir = os.Getenv("SystemRoot")
+		if winDir == "" {
+			winDir = home
+		}
+	}
+
+	// Initialize base directories.
+	baseDirs.dataHome = xdgPath(envDataHome, localAppDataDir)
+	baseDirs.data = xdgPaths(envDataDirs, roamingAppDataDir, programDataDir)
+	baseDirs.configHome = xdgPath(envConfigHome, localAppDataDir)
+	baseDirs.config = xdgPaths(envConfigDirs, programDataDir)
+	baseDirs.cacheHome = xdgPath(envCacheHome, filepath.Join(localAppDataDir, "cache"))
+	baseDirs.runtime = xdgPath(envRuntimeDir, localAppDataDir)
+
+	// Initialize non-standard directories.
+	baseDirs.applications = []string{
+		filepath.Join(roamingAppDataDir, "Microsoft", "Windows", "Start Menu", "Programs"),
+	}
+	baseDirs.fonts = []string{
+		filepath.Join(winDir, "Fonts"),
+		filepath.Join(localAppDataDir, "Microsoft", "Windows", "Fonts"),
+	}
+}
+
+func initUserDirs(home string) {
+	publicDir := os.Getenv("PUBLIC")
+	if publicDir == "" {
+		publicDir = filepath.Join(home, "Public")
+	}
+
+	UserDirs.Desktop = xdgPath(envDesktopDir, filepath.Join(home, "Desktop"))
+	UserDirs.Download = xdgPath(envDownloadDir, filepath.Join(home, "Downloads"))
+	UserDirs.Documents = xdgPath(envDocumentsDir, filepath.Join(home, "Documents"))
+	UserDirs.Music = xdgPath(envMusicDir, filepath.Join(home, "Music"))
+	UserDirs.Pictures = xdgPath(envPicturesDir, filepath.Join(home, "Pictures"))
+	UserDirs.Videos = xdgPath(envVideosDir, filepath.Join(home, "Videos"))
+	UserDirs.Templates = xdgPath(envTemplatesDir, filepath.Join(home, "Templates"))
+	UserDirs.PublicShare = xdgPath(envPublicShareDir, publicDir)
+}