feat: support --list-hosts tools command (#134)

tssh/args.go

@@ -85,6 +85,7 @@ type sshArgs struct {
 	TsshdPath      string      `arg:"--tsshd-path" placeholder:"path" help:"[udp] tsshd absolute path on the server"`
 	NewHost        bool        `arg:"--new-host" help:"[tools] add new host to configuration"`
 	EncSecret      bool        `arg:"--enc-secret" help:"[tools] encode secret for configuration"`
+	ListHosts      bool        `arg:"--list-hosts" help:"[tools] list all hosts in configuration"`
 	InstallTrzsz   bool        `arg:"--install-trzsz" help:"[tools] install trzsz to the remote server"`
 	InstallTsshd   bool        `arg:"--install-tsshd" help:"[tools] install tsshd to the remote server"`
 	InstallPath    string      `arg:"--install-path" placeholder:"path" help:"[tools] install path, default: '~/.local/bin/'"`

tssh/config.go

@@ -64,7 +64,7 @@ type sshHost struct {
 	ProxyJump     string
 	RemoteCommand string
 	GroupLabels   string
-	Selected      bool
+	Selected      bool `json:"-"`
 }
 
 type tsshConfig struct {

tssh/tools.go

@@ -33,7 +33,7 @@ import (
 	"time"
 
 	"github.com/charmbracelet/bubbles/textinput"
-	"github.com/charmbracelet/bubbletea"
+	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/lipgloss"
 )
 
@@ -459,6 +459,8 @@ func execLocalTools(argv []string, args *sshArgs) (int, bool) {
 		return execEncodeSecret()
 	case args.NewHost || len(argv) == 0 && isFileNotExistOrEmpty(userConfig.configPath):
 		return execNewHost(args)
+	case args.ListHosts:
+		return execListHosts()
 	default:
 		return 0, false
 	}

tssh/tools_list_hosts.go

@@ -0,0 +1,53 @@
+/*
+MIT License
+
+Copyright (c) 2023-2024 The Trzsz SSH Authors.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+package tssh
+
+import (
+	"encoding/json"
+	"fmt"
+	"runtime"
+	"strings"
+)
+
+func execListHosts() (int, bool) {
+	hosts := getAllHosts()
+
+	if hosts == nil {
+		hosts = []*sshHost{}
+	}
+	result, err := json.MarshalIndent(hosts, "", "  ")
+	if err != nil {
+		warning("json marshal indent failed: %v", err)
+		return 1, true
+	}
+
+	hostsJson := string(result)
+	if runtime.GOOS == "windows" {
+		hostsJson = strings.ReplaceAll(hostsJson, "\n", "\r\n")
+	}
+	fmt.Println(hostsJson)
+
+	return 0, true
+}