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// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2020 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package main
import (
"errors"
"fmt"
"os"
"path/filepath"
"runtime"
"strings"
"time"
"maunium.net/go/gomuks/debug"
"maunium.net/go/gomuks/interface"
"maunium.net/go/gomuks/ui"
)
var MainUIProvider ifc.UIProvider = ui.NewGomuksUI
func main() {
debugDir := os.Getenv("DEBUG_DIR")
if len(debugDir) > 0 {
debug.LogDirectory = debugDir
}
debugLevel := strings.ToLower(os.Getenv("DEBUG"))
if debugLevel != "0" && debugLevel != "f" && debugLevel != "false" {
debug.WriteLogs = true
}
if debugLevel == "1" || debugLevel == "t" || debugLevel == "true" {
debug.RecoverPrettyPanic = false
debug.DeadlockDetection = true
}
debug.Initialize()
defer debug.Recover()
var configDir, dataDir, cacheDir, downloadDir string
var err error
configDir, err = UserConfigDir()
if err != nil {
_, _ = fmt.Fprintln(os.Stderr, "Failed to get config directory:", err)
os.Exit(3)
}
dataDir, err = UserDataDir()
if err != nil {
_, _ = fmt.Fprintln(os.Stderr, "Failed to get data directory:", err)
os.Exit(3)
}
cacheDir, err = UserCacheDir()
if err != nil {
_, _ = fmt.Fprintln(os.Stderr, "Failed to get cache directory:", err)
os.Exit(3)
}
downloadDir, err = UserDownloadDir()
if err != nil {
_, _ = fmt.Fprintln(os.Stderr, "Failed to get download directory:", err)
os.Exit(3)
}
gmx := NewGomuks(MainUIProvider, configDir, dataDir, cacheDir, downloadDir)
gmx.Start()
// We use os.Exit() everywhere, so exiting by returning from Start() shouldn't happen.
time.Sleep(5 * time.Second)
fmt.Println("Unexpected exit by return from gmx.Start().")
os.Exit(2)
}
func getRootDir(subdir string) string {
rootDir := os.Getenv("GOMUKS_ROOT")
if rootDir == "" {
return ""
}
return filepath.Join(rootDir, subdir)
}
func UserCacheDir() (dir string, err error) {
dir = os.Getenv("GOMUKS_CACHE_HOME")
if dir == "" {
dir = getRootDir("cache")
}
if dir == "" {
dir, err = os.UserCacheDir()
dir = filepath.Join(dir, "gomuks")
}
return
}
func UserDataDir() (dir string, err error) {
dir = os.Getenv("GOMUKS_DATA_HOME")
if dir != "" {
return
}
if runtime.GOOS == "windows" || runtime.GOOS == "darwin" {
return UserConfigDir()
}
dir = os.Getenv("XDG_DATA_HOME")
if dir == "" {
dir = getRootDir("data")
}
if dir == "" {
dir = os.Getenv("HOME")
if dir == "" {
return "", errors.New("neither $XDG_CACHE_HOME nor $HOME are defined")
}
dir = filepath.Join(dir, ".local", "share")
}
dir = filepath.Join(dir, "gomuks")
return
}
func UserDownloadDir() (dir string, err error) {
dir, err = os.UserHomeDir()
dir = filepath.Join(dir, "Downloads")
return
}
func UserConfigDir() (dir string, err error) {
dir = os.Getenv("GOMUKS_CONFIG_HOME")
if dir == "" {
dir = getRootDir("config")
}
if dir == "" {
dir, err = os.UserConfigDir()
dir = filepath.Join(dir, "gomuks")
}
return
}
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