Remove gogit and major refactoring (#2)

* Fix typo in readme

* Reimplement all git methods without go-git

* Rename repo pkg to git, add gitconfig methods

* Improve tests for configuration reading

* Rename package file to io and move RepoFinder there

* Refactor printers

- Remove smart printer
- Decouple printers from git repos with interfaces
- Update printer functions
- Remove unnecessary flags
- Add better remote URL detection

* Update readme and go.mod

* Add author to git commit in tests

Otherwise tests will fail in CI.

* Install git before running tests and don't use cgo

* Add better error message, revert installing git

* Ensure commit message is in quotes

* Set up git config before running tests

cmd/list/main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"git-get/pkg"
 	"git-get/pkg/cfg"
+	"git-get/pkg/git"
 	"strings"
 
 	"github.com/spf13/cobra"
@@ -22,26 +23,23 @@ var cmd = &cobra.Command{
 func init() {
 	cmd.PersistentFlags().BoolP(cfg.KeyFetch, "f", false, "First fetch from remotes before listing repositories.")
 	cmd.PersistentFlags().StringP(cfg.KeyOutput, "o", cfg.DefOutput, fmt.Sprintf("Output format. Allowed values: [%s].", strings.Join(cfg.AllowedOut, ", ")))
-	cmd.PersistentFlags().StringP(cfg.KeyPrivateKey, "p", "", "Path to SSH private key. (default \"~/.ssh/id_rsa\")")
 	cmd.PersistentFlags().StringP(cfg.KeyReposRoot, "r", "", "Path to repos root where repositories are cloned. (default \"~/repositories\")")
 	cmd.PersistentFlags().BoolP("help", "h", false, "Print this help and exit.")
 	cmd.PersistentFlags().BoolP("version", "v", false, "Print version and exit.")
 
 	viper.BindPFlag(cfg.KeyFetch, cmd.PersistentFlags().Lookup(cfg.KeyFetch))
 	viper.BindPFlag(cfg.KeyOutput, cmd.PersistentFlags().Lookup(cfg.KeyOutput))
-	viper.BindPFlag(cfg.KeyPrivateKey, cmd.PersistentFlags().Lookup(cfg.KeyReposRoot))
 	viper.BindPFlag(cfg.KeyReposRoot, cmd.PersistentFlags().Lookup(cfg.KeyReposRoot))
 
 }
 
 func run(cmd *cobra.Command, args []string) error {
-	cfg.Init()
+	cfg.Init(&git.ConfigGlobal{})
 
 	config := &pkg.ListCfg{
-		Fetch:      viper.GetBool(cfg.KeyFetch),
-		Output:     viper.GetString(cfg.KeyOutput),
-		PrivateKey: viper.GetString(cfg.KeyPrivateKey),
-		Root:       viper.GetString(cfg.KeyReposRoot),
+		Fetch:  viper.GetBool(cfg.KeyFetch),
+		Output: viper.GetString(cfg.KeyOutput),
+		Root:   viper.GetString(cfg.KeyReposRoot),
 	}
 
 	return pkg.List(config)