refactor,feat: use soft serve backends, implement git & http servers,…

… remove config repository, manage soft serve from ssh (#231)

* feat(backend): server backend

Add file backend that uses filesystem to manage non-git operations.

* feat(git): more git commands

* refactor(config): remove config module

* feat(gomod): upgrade wish & use charmbracelet/ssh

* feat(server): use cmd middleware

* refactor(ui): clean up and tidy

* feat(git): implement git daemon

* fix(examples): update setuid

* fix(backend.file): populate default config

* fix: tests

* refactor: tidy up files

* chore(gitignore): add more files

.gitignore

@@ -1,7 +1,10 @@
 cmd/soft/soft
+./soft
 .ssh
 .repos
 dist
 testdata
+data/
 completions/
-manpages/
+manpages/
+soft_serve_ed25519*

cmd/soft/serve.go

@@ -2,14 +2,11 @@ package main
 
 import (
 	"context"
-	"fmt"
 	"os"
 	"os/signal"
 	"syscall"
 	"time"
 
-	"github.com/charmbracelet/log"
-
 	"github.com/charmbracelet/soft-serve/server"
 	"github.com/charmbracelet/soft-serve/server/config"
 	"github.com/spf13/cobra"
@@ -23,9 +20,10 @@ var (
 		Args:  cobra.NoArgs,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			cfg := config.DefaultConfig()
-			s := server.NewServer(cfg)
-
-			log.Print("Starting SSH server", "addr", fmt.Sprintf("%s:%d", cfg.BindAddr, cfg.Port))
+			s, err := server.NewServer(cfg)
+			if err != nil {
+				return err
+			}
 
 			done := make(chan os.Signal, 1)
 			lch := make(chan error, 1)
@@ -38,7 +36,6 @@ var (
 			signal.Notify(done, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 			<-done
 
-			log.Print("Stopping SSH server", "addr", fmt.Sprintf("%s:%d", cfg.BindAddr, cfg.Port))
 			ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 			defer cancel()
 			if err := s.Shutdown(ctx); err != nil {