src

Go monorepo.
git clone git://code.dwrz.net/src
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main.go (1522B)

      1 package main
      2 
      3 import (
      4 	"context"
      5 	"os"
      6 	"os/signal"
      7 	"path/filepath"
      8 	"syscall"
      9 
     10 	"code.dwrz.net/src/pkg/editor"
     11 	"code.dwrz.net/src/pkg/log"
     12 	"code.dwrz.net/src/pkg/terminal"
     13 )
     14 
     15 func main() {
     16 	var l = log.New(os.Stderr)
     17 
     18 	// Setup the main context.
     19 	ctx, cancel := context.WithCancel(context.Background())
     20 
     21 	// Setup workspace and log file.
     22 	cdir, err := os.UserCacheDir()
     23 	if err != nil {
     24 		l.Error.Fatalf(
     25 			"failed to determine user cache directory: %v", err,
     26 		)
     27 	}
     28 	wdir := filepath.Join(cdir, "wen")
     29 
     30 	if err := os.MkdirAll(wdir, os.ModeDir|0700); err != nil {
     31 		l.Error.Fatalf("failed to create tmp dir: %v", err)
     32 	}
     33 
     34 	f, err := os.Create(wdir + "/log")
     35 	if err != nil {
     36 		l.Error.Fatalf("failed to create log file: %v", err)
     37 	}
     38 	defer f.Close()
     39 
     40 	// Retrieve terminal info.
     41 	t, err := terminal.New(os.Stdin.Fd())
     42 	if err != nil {
     43 		l.Error.Fatalf("failed to get terminal attributes: %v", err)
     44 	}
     45 
     46 	// Create the editor.
     47 	editor, err := editor.New(editor.Parameters{
     48 		In:       os.Stdin,
     49 		Log:      log.New(f),
     50 		Out:      os.Stdout,
     51 		TempDir:  wdir,
     52 		Terminal: t,
     53 	})
     54 	if err != nil {
     55 		l.Error.Fatalf("failed to create editor: %v", err)
     56 	}
     57 
     58 	// TODO: refactor; handle sigwinch.
     59 	go func() {
     60 		var signals = make(chan os.Signal, 1)
     61 		signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
     62 
     63 		// Block until we receive a signal.
     64 		s := <-signals
     65 		l.Debug.Printf("received signal: %s", s)
     66 
     67 		cancel()
     68 	}()
     69 
     70 	// Run the editor.
     71 	if err := editor.Run(ctx, os.Args[1:]); err != nil {
     72 		l.Error.Fatal(err)
     73 	}
     74 }