feat: add async SSH ping for all hosts with status indicator

• Add SourceFile field to SSHHost struct to track config file origins
• Implement FindHostInAllConfigs() to locate hosts across all config files
• Fix "host not found" errors when editing/deleting hosts from included files
• Add GetAllConfigFiles() and GetAllConfigFilesFromBase() for config discovery
• Create UpdateSSHHostV2() and DeleteSSHHostV2() for cross-file operations
• Display config file source in edit and info forms for better visibility
• Add intelligent file selector for host addition when multiple configs exist
• Support -c parameter context with proper file resolution
• Exclude .backup files from Include directive processing
• Maintain backward compatibility with existing SSH config workflows

Resolves limitation where hosts from included config files could be viewed
but not edited, deleted, or properly managed through the interface.

.github/workflows/build.yml

@@ -113,12 +113,22 @@ jobs:
         find ./artifacts -name "*.zip" -exec cp {} ./release/ \;
         ls -la ./release/
 
+    - name: Check if pre-release
+      id: check_prerelease
+      run: |
+        if [[ "${GITHUB_REF#refs/tags/}" == *"-beta"* ]] || [[ "${GITHUB_REF#refs/tags/}" == *"-alpha"* ]] || [[ "${GITHUB_REF#refs/tags/}" == *"-rc"* ]]; then
+          echo "is_prerelease=true" >> $GITHUB_OUTPUT
+        else
+          echo "is_prerelease=false" >> $GITHUB_OUTPUT
+        fi
+
     - name: Create Release
       uses: softprops/action-gh-release@v2
       with:
         files: ./release/*
         draft: false
-        prerelease: false
+        prerelease: ${{ steps.check_prerelease.outputs.is_prerelease }}
         generate_release_notes: true
+        name: ${{ github.ref_name }}${{ steps.check_prerelease.outputs.is_prerelease == 'true' && ' (Pre-release)' || '' }}
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

go.mod

@@ -28,7 +28,8 @@ require (
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-	golang.org/x/sync v0.15.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
-	golang.org/x/text v0.3.8 // indirect
+	golang.org/x/crypto v0.41.0 // indirect
+	golang.org/x/sync v0.16.0 // indirect
+	golang.org/x/sys v0.35.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
 )

go.sum

@@ -49,15 +49,23 @@ github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
 github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
+golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
+golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
 golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
 golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
 golang.org/x/sync v0.15.0 h1:KWH3jNZsfyT6xfAfKiz6MRNmd46ByHDYaZ7KSkCtdW8=
 golang.org/x/sync v0.15.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/config/ssh.go

@@ -13,14 +13,15 @@ import (
 
 // SSHHost represents an SSH host configuration
 type SSHHost struct {
-	Name      string
-	Hostname  string
-	User      string
-	Port      string
-	Identity  string
-	ProxyJump string
-	Options   string
-	Tags      []string
+	Name       string
+	Hostname   string
+	User       string
+	Port       string
+	Identity   string
+	ProxyJump  string
+	Options    string
+	Tags       []string
+	SourceFile string // Path to the config file where this host is defined
 }
 
 // GetDefaultSSHConfigPath returns the default SSH config path for the current platform
@@ -209,9 +210,10 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 			}
 			// Create new host
 			currentHost = &SSHHost{
-				Name: value,
-				Port: "22",        // Default port
-				Tags: pendingTags, // Assign pending tags to this host
+				Name:       value,
+				Port:       "22",        // Default port
+				Tags:       pendingTags, // Assign pending tags to this host
+				SourceFile: absPath,     // Track which file this host comes from
 			}
 			// Clear pending tags for next host
 			pendingTags = nil
@@ -286,6 +288,16 @@ func processIncludeDirective(pattern string, baseConfigPath string, processedFil
 			continue
 		}
 
+		// Skip backup files created by sshm (*.backup)
+		if strings.HasSuffix(match, ".backup") {
+			continue
+		}
+
+		// Skip markdown files (*.md)
+		if strings.HasSuffix(match, ".md") {
+			continue
+		}
+
 		// Recursively parse the included file
 		hosts, err := parseSSHConfigFileWithProcessedFiles(match, processedFiles)
 		if err != nil {
@@ -529,11 +541,7 @@ func GetSSHHostFromFile(hostName string, configPath string) (*SSHHost, error) {
 
 // UpdateSSHHost updates an existing SSH host configuration
 func UpdateSSHHost(oldName string, newHost SSHHost) error {
-	configPath, err := GetDefaultSSHConfigPath()
-	if err != nil {
-		return err
-	}
-	return UpdateSSHHostInFile(oldName, newHost, configPath)
+	return UpdateSSHHostV2(oldName, newHost)
 }
 
 // UpdateSSHHostInFile updates an existing SSH host configuration in a specific file
@@ -688,11 +696,7 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 
 // DeleteSSHHost removes an SSH host configuration from the config file
 func DeleteSSHHost(hostName string) error {
-	configPath, err := GetDefaultSSHConfigPath()
-	if err != nil {
-		return err
-	}
-	return DeleteSSHHostFromFile(hostName, configPath)
+	return DeleteSSHHostV2(hostName)
 }
 
 // DeleteSSHHostFromFile deletes an SSH host from a specific config file
@@ -776,3 +780,115 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 	newContent := strings.Join(newLines, "\n")
 	return os.WriteFile(configPath, []byte(newContent), 0600)
 }
+
+// FindHostInAllConfigs finds a host in all configuration files and returns the host with its source file
+func FindHostInAllConfigs(hostName string) (*SSHHost, error) {
+	hosts, err := ParseSSHConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, host := range hosts {
+		if host.Name == hostName {
+			return &host, nil
+		}
+	}
+
+	return nil, fmt.Errorf("host '%s' not found in any configuration file", hostName)
+}
+
+// GetAllConfigFiles returns all SSH config files (main + included files)
+func GetAllConfigFiles() ([]string, error) {
+	configPath, err := GetDefaultSSHConfigPath()
+	if err != nil {
+		return nil, err
+	}
+
+	processedFiles := make(map[string]bool)
+	_, _ = parseSSHConfigFileWithProcessedFiles(configPath, processedFiles)
+
+	files := make([]string, 0, len(processedFiles))
+	for file := range processedFiles {
+		files = append(files, file)
+	}
+
+	return files, nil
+}
+
+// GetAllConfigFilesFromBase returns all SSH config files starting from a specific base config file
+func GetAllConfigFilesFromBase(baseConfigPath string) ([]string, error) {
+	if baseConfigPath == "" {
+		// Fallback to default behavior
+		return GetAllConfigFiles()
+	}
+
+	processedFiles := make(map[string]bool)
+	_, _ = parseSSHConfigFileWithProcessedFiles(baseConfigPath, processedFiles)
+
+	files := make([]string, 0, len(processedFiles))
+	for file := range processedFiles {
+		files = append(files, file)
+	}
+
+	return files, nil
+} // UpdateSSHHostV2 updates an existing SSH host configuration, searching in all config files
+func UpdateSSHHostV2(oldName string, newHost SSHHost) error {
+	// Find the host to determine which file it's in
+	existingHost, err := FindHostInAllConfigs(oldName)
+	if err != nil {
+		return err
+	}
+
+	// Update the host in its source file
+	newHost.SourceFile = existingHost.SourceFile
+	return UpdateSSHHostInFile(oldName, newHost, existingHost.SourceFile)
+}
+
+// DeleteSSHHostV2 removes an SSH host configuration, searching in all config files
+func DeleteSSHHostV2(hostName string) error {
+	// Find the host to determine which file it's in
+	existingHost, err := FindHostInAllConfigs(hostName)
+	if err != nil {
+		return err
+	}
+
+	// Delete the host from its source file
+	return DeleteSSHHostFromFile(hostName, existingHost.SourceFile)
+}
+
+// AddSSHHostWithFileSelection adds a new SSH host to a user-specified config file
+func AddSSHHostWithFileSelection(host SSHHost, targetFile string) error {
+	if targetFile == "" {
+		// Use default file if none specified
+		return AddSSHHost(host)
+	}
+	return AddSSHHostToFile(host, targetFile)
+}
+
+// GetIncludedConfigFiles returns a list of config files that can be used for adding hosts
+func GetIncludedConfigFiles() ([]string, error) {
+	allFiles, err := GetAllConfigFiles()
+	if err != nil {
+		return nil, err
+	}
+
+	// Filter out files that don't exist or can't be written to
+	var writableFiles []string
+	mainConfig, err := GetDefaultSSHConfigPath()
+	if err == nil {
+		writableFiles = append(writableFiles, mainConfig)
+	}
+
+	for _, file := range allFiles {
+		if file == mainConfig {
+			continue // Already added
+		}
+
+		// Check if file exists and is writable
+		if info, err := os.Stat(file); err == nil && !info.IsDir() {
+			writableFiles = append(writableFiles, file)
+		}
+	}
+
+	return writableFiles, nil
+}

internal/config/ssh_test.go

@@ -76,7 +76,7 @@ func TestEnsureSSHDirectory(t *testing.T) {
 func TestParseSSHConfigWithInclude(t *testing.T) {
 	// Create temporary directory for test files
 	tempDir := t.TempDir()
-	
+
 	// Create main config file
 	mainConfig := filepath.Join(tempDir, "config")
 	mainConfigContent := `Host main-host
@@ -90,7 +90,7 @@ Host another-host
     HostName another.example.com
     User anotheruser
 `
-	
+
 	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create main config: %v", err)
@@ -103,7 +103,7 @@ Host another-host
     User includeduser
     Port 2222
 `
-	
+
 	err = os.WriteFile(includedConfig, []byte(includedConfigContent), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create included config: %v", err)
@@ -122,7 +122,7 @@ Host another-host
     User subuser
     IdentityFile ~/.ssh/sub_key
 `
-	
+
 	err = os.WriteFile(subConfig, []byte(subConfigContent), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create sub config: %v", err)
@@ -158,18 +158,30 @@ Host another-host
 			if host.Hostname != "example.com" || host.User != "mainuser" {
 				t.Errorf("main-host properties incorrect: hostname=%s, user=%s", host.Hostname, host.User)
 			}
+			if host.SourceFile != mainConfig {
+				t.Errorf("main-host SourceFile incorrect: expected=%s, got=%s", mainConfig, host.SourceFile)
+			}
 		case "included-host":
 			if host.Hostname != "included.example.com" || host.User != "includeduser" || host.Port != "2222" {
 				t.Errorf("included-host properties incorrect: hostname=%s, user=%s, port=%s", host.Hostname, host.User, host.Port)
 			}
+			if host.SourceFile != includedConfig {
+				t.Errorf("included-host SourceFile incorrect: expected=%s, got=%s", includedConfig, host.SourceFile)
+			}
 		case "sub-host":
 			if host.Hostname != "sub.example.com" || host.User != "subuser" || host.Identity != "~/.ssh/sub_key" {
 				t.Errorf("sub-host properties incorrect: hostname=%s, user=%s, identity=%s", host.Hostname, host.User, host.Identity)
 			}
+			if host.SourceFile != subConfig {
+				t.Errorf("sub-host SourceFile incorrect: expected=%s, got=%s", subConfig, host.SourceFile)
+			}
 		case "another-host":
 			if host.Hostname != "another.example.com" || host.User != "anotheruser" {
 				t.Errorf("another-host properties incorrect: hostname=%s, user=%s", host.Hostname, host.User)
 			}
+			if host.SourceFile != mainConfig {
+				t.Errorf("another-host SourceFile incorrect: expected=%s, got=%s", mainConfig, host.SourceFile)
+			}
 		}
 	}
 
@@ -186,7 +198,7 @@ Host another-host
 func TestParseSSHConfigWithCircularInclude(t *testing.T) {
 	// Create temporary directory for test files
 	tempDir := t.TempDir()
-	
+
 	// Create config1 that includes config2
 	config1 := filepath.Join(tempDir, "config1")
 	config1Content := `Host host1
@@ -194,7 +206,7 @@ func TestParseSSHConfigWithCircularInclude(t *testing.T) {
 
 Include config2
 `
-	
+
 	err := os.WriteFile(config1, []byte(config1Content), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create config1: %v", err)
@@ -207,7 +219,7 @@ Include config2
 
 Include config1
 `
-	
+
 	err = os.WriteFile(config2, []byte(config2Content), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create config2: %v", err)
@@ -247,7 +259,7 @@ Include config1
 func TestParseSSHConfigWithNonExistentInclude(t *testing.T) {
 	// Create temporary directory for test files
 	tempDir := t.TempDir()
-	
+
 	// Create main config file with non-existent include
 	mainConfig := filepath.Join(tempDir, "config")
 	mainConfigContent := `Host main-host
@@ -258,7 +270,7 @@ Include non-existent-file.conf
 Host another-host
     HostName another.example.com
 `
-	
+
 	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create main config: %v", err)
@@ -288,7 +300,7 @@ Host another-host
 func TestParseSSHConfigWithWildcardHosts(t *testing.T) {
 	// Create temporary directory for test files
 	tempDir := t.TempDir()
-	
+
 	// Create config file with wildcard hosts
 	configFile := filepath.Join(tempDir, "config")
 	configContent := `# Wildcard patterns should be ignored
@@ -311,7 +323,7 @@ Host another-real-server
     HostName another.example.com
     User anotheruser
 `
-	
+
 	err := os.WriteFile(configFile, []byte(configContent), 0600)
 	if err != nil {
 		t.Fatalf("Failed to create config: %v", err)
@@ -365,3 +377,323 @@ Host another-real-server
 		}
 	}
 }
+
+func TestParseSSHConfigExcludesBackupFiles(t *testing.T) {
+	// Create temporary directory for test files
+	tempDir := t.TempDir()
+
+	// Create main config file with include pattern
+	mainConfig := filepath.Join(tempDir, "config")
+	mainConfigContent := `Host main-host
+    HostName example.com
+
+Include *.conf
+`
+
+	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create main config: %v", err)
+	}
+
+	// Create a regular config file
+	regularConfig := filepath.Join(tempDir, "regular.conf")
+	regularConfigContent := `Host regular-host
+    HostName regular.example.com
+`
+
+	err = os.WriteFile(regularConfig, []byte(regularConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create regular config: %v", err)
+	}
+
+	// Create a backup file that should be excluded
+	backupConfig := filepath.Join(tempDir, "regular.conf.backup")
+	backupConfigContent := `Host backup-host
+    HostName backup.example.com
+`
+
+	err = os.WriteFile(backupConfig, []byte(backupConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create backup config: %v", err)
+	}
+
+	// Parse the config file
+	hosts, err := ParseSSHConfigFile(mainConfig)
+	if err != nil {
+		t.Fatalf("ParseSSHConfigFile() error = %v", err)
+	}
+
+	// Should only get main-host and regular-host, not backup-host
+	expectedHosts := map[string]bool{
+		"main-host":    false,
+		"regular-host": false,
+	}
+
+	if len(hosts) != len(expectedHosts) {
+		t.Errorf("Expected %d hosts, got %d", len(expectedHosts), len(hosts))
+		for _, host := range hosts {
+			t.Logf("Found host: %s", host.Name)
+		}
+	}
+
+	for _, host := range hosts {
+		if _, expected := expectedHosts[host.Name]; !expected {
+			t.Errorf("Unexpected host found: %s (backup files should be excluded)", host.Name)
+		} else {
+			expectedHosts[host.Name] = true
+		}
+	}
+
+	// Check that backup-host was not included
+	for _, host := range hosts {
+		if host.Name == "backup-host" {
+			t.Error("backup-host should not be included (backup files should be excluded)")
+		}
+	}
+}
+
+func TestFindHostInAllConfigs(t *testing.T) {
+	// Create temporary directory for test files
+	tempDir := t.TempDir()
+
+	// Create main config file
+	mainConfig := filepath.Join(tempDir, "config")
+	mainConfigContent := `Host main-host
+    HostName example.com
+
+Include included.conf
+`
+
+	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create main config: %v", err)
+	}
+
+	// Create included config file
+	includedConfig := filepath.Join(tempDir, "included.conf")
+	includedConfigContent := `Host included-host
+    HostName included.example.com
+    User includeduser
+`
+
+	err = os.WriteFile(includedConfig, []byte(includedConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create included config: %v", err)
+	}
+
+	// Test finding host from main config
+	host, err := GetSSHHostFromFile("main-host", mainConfig)
+	if err != nil {
+		t.Fatalf("GetSSHHostFromFile() error = %v", err)
+	}
+	if host.Name != "main-host" || host.Hostname != "example.com" {
+		t.Errorf("main-host not found correctly: name=%s, hostname=%s", host.Name, host.Hostname)
+	}
+	if host.SourceFile != mainConfig {
+		t.Errorf("main-host SourceFile incorrect: expected=%s, got=%s", mainConfig, host.SourceFile)
+	}
+
+	// Test finding host from included config
+	// Note: This tests the full parsing with includes
+	hosts, err := ParseSSHConfigFile(mainConfig)
+	if err != nil {
+		t.Fatalf("ParseSSHConfigFile() error = %v", err)
+	}
+
+	var includedHost *SSHHost
+	for _, h := range hosts {
+		if h.Name == "included-host" {
+			includedHost = &h
+			break
+		}
+	}
+
+	if includedHost == nil {
+		t.Fatal("included-host not found")
+	}
+	if includedHost.Hostname != "included.example.com" || includedHost.User != "includeduser" {
+		t.Errorf("included-host properties incorrect: hostname=%s, user=%s", includedHost.Hostname, includedHost.User)
+	}
+	if includedHost.SourceFile != includedConfig {
+		t.Errorf("included-host SourceFile incorrect: expected=%s, got=%s", includedConfig, includedHost.SourceFile)
+	}
+}
+
+func TestGetAllConfigFiles(t *testing.T) {
+	// Create temporary directory for test files
+	tempDir := t.TempDir()
+
+	// Create main config file
+	mainConfig := filepath.Join(tempDir, "config")
+	mainConfigContent := `Host main-host
+    HostName example.com
+
+Include included.conf
+Include subdir/*.conf
+`
+
+	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create main config: %v", err)
+	}
+
+	// Create included config file
+	includedConfig := filepath.Join(tempDir, "included.conf")
+	err = os.WriteFile(includedConfig, []byte("Host included-host\n    HostName included.example.com\n"), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create included config: %v", err)
+	}
+
+	// Create subdirectory with config files
+	subDir := filepath.Join(tempDir, "subdir")
+	err = os.MkdirAll(subDir, 0700)
+	if err != nil {
+		t.Fatalf("Failed to create subdir: %v", err)
+	}
+
+	subConfig := filepath.Join(subDir, "sub.conf")
+	err = os.WriteFile(subConfig, []byte("Host sub-host\n    HostName sub.example.com\n"), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create sub config: %v", err)
+	}
+
+	// Parse to populate the processed files map
+	_, err = ParseSSHConfigFile(mainConfig)
+	if err != nil {
+		t.Fatalf("ParseSSHConfigFile() error = %v", err)
+	}
+
+	// Note: GetAllConfigFiles() uses a fresh parse, so we test it indirectly
+	// by checking that all files are found during parsing
+	hosts, err := ParseSSHConfigFile(mainConfig)
+	if err != nil {
+		t.Fatalf("ParseSSHConfigFile() error = %v", err)
+	}
+
+	// Check that hosts from all files are found
+	sourceFiles := make(map[string]bool)
+	for _, host := range hosts {
+		sourceFiles[host.SourceFile] = true
+	}
+
+	expectedFiles := []string{mainConfig, includedConfig, subConfig}
+	for _, expectedFile := range expectedFiles {
+		if !sourceFiles[expectedFile] {
+			t.Errorf("Expected config file not found in SourceFile: %s", expectedFile)
+		}
+	}
+}
+
+func TestGetAllConfigFilesFromBase(t *testing.T) {
+	// Create temporary directory for test files
+	tempDir := t.TempDir()
+
+	// Create main config file
+	mainConfig := filepath.Join(tempDir, "config")
+	mainConfigContent := `Host main-host
+    HostName example.com
+
+Include included.conf
+`
+
+	err := os.WriteFile(mainConfig, []byte(mainConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create main config: %v", err)
+	}
+
+	// Create included config file
+	includedConfig := filepath.Join(tempDir, "included.conf")
+	includedConfigContent := `Host included-host
+    HostName included.example.com
+
+Include subdir/*.conf
+`
+
+	err = os.WriteFile(includedConfig, []byte(includedConfigContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create included config: %v", err)
+	}
+
+	// Create subdirectory with config files
+	subDir := filepath.Join(tempDir, "subdir")
+	err = os.MkdirAll(subDir, 0700)
+	if err != nil {
+		t.Fatalf("Failed to create subdir: %v", err)
+	}
+
+	subConfig := filepath.Join(subDir, "sub.conf")
+	err = os.WriteFile(subConfig, []byte("Host sub-host\n    HostName sub.example.com\n"), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create sub config: %v", err)
+	}
+
+	// Create an isolated config file that should not be included
+	isolatedConfig := filepath.Join(tempDir, "isolated.conf")
+	err = os.WriteFile(isolatedConfig, []byte("Host isolated-host\n    HostName isolated.example.com\n"), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create isolated config: %v", err)
+	}
+
+	// Test GetAllConfigFilesFromBase with main config as base
+	files, err := GetAllConfigFilesFromBase(mainConfig)
+	if err != nil {
+		t.Fatalf("GetAllConfigFilesFromBase() error = %v", err)
+	}
+
+	// Should find main config, included config, and sub config, but not isolated config
+	expectedFiles := map[string]bool{
+		mainConfig:     false,
+		includedConfig: false,
+		subConfig:      false,
+	}
+
+	if len(files) != len(expectedFiles) {
+		t.Errorf("Expected %d config files, got %d", len(expectedFiles), len(files))
+		for i, file := range files {
+			t.Logf("Found file %d: %s", i+1, file)
+		}
+	}
+
+	for _, file := range files {
+		if _, expected := expectedFiles[file]; expected {
+			expectedFiles[file] = true
+		} else if file == isolatedConfig {
+			t.Errorf("Isolated config file should not be included: %s", file)
+		} else {
+			t.Logf("Unexpected file found: %s", file)
+		}
+	}
+
+	// Check that all expected files were found
+	for file, found := range expectedFiles {
+		if !found {
+			t.Errorf("Expected config file not found: %s", file)
+		}
+	}
+
+	// Test GetAllConfigFilesFromBase with isolated config as base (should only return itself)
+	isolatedFiles, err := GetAllConfigFilesFromBase(isolatedConfig)
+	if err != nil {
+		t.Fatalf("GetAllConfigFilesFromBase() error = %v", err)
+	}
+
+	if len(isolatedFiles) != 1 || isolatedFiles[0] != isolatedConfig {
+		t.Errorf("Expected only isolated config file, got: %v", isolatedFiles)
+	}
+
+	// Test with empty base config file path (should fallback to default behavior)
+	defaultFiles, err := GetAllConfigFilesFromBase("")
+	if err != nil {
+		t.Fatalf("GetAllConfigFilesFromBase('') error = %v", err)
+	}
+
+	// Should behave like GetAllConfigFiles()
+	allFiles, err := GetAllConfigFiles()
+	if err != nil {
+		t.Fatalf("GetAllConfigFiles() error = %v", err)
+	}
+
+	if len(defaultFiles) != len(allFiles) {
+		t.Errorf("GetAllConfigFilesFromBase('') should behave like GetAllConfigFiles(). Got %d vs %d files", len(defaultFiles), len(allFiles))
+	}
+}

internal/connectivity/ping.go

@@ -0,0 +1,212 @@
+package connectivity
+
+import (
+	"context"
+	"net"
+	"sshm/internal/config"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// PingStatus represents the connectivity status of an SSH host
+type PingStatus int
+
+const (
+	StatusUnknown PingStatus = iota
+	StatusConnecting
+	StatusOnline
+	StatusOffline
+)
+
+func (s PingStatus) String() string {
+	switch s {
+	case StatusUnknown:
+		return "unknown"
+	case StatusConnecting:
+		return "connecting"
+	case StatusOnline:
+		return "online"
+	case StatusOffline:
+		return "offline"
+	}
+	return "unknown"
+}
+
+// HostPingResult represents the result of pinging a host
+type HostPingResult struct {
+	HostName string
+	Status   PingStatus
+	Error    error
+	Duration time.Duration
+}
+
+// PingManager manages SSH connectivity checks for multiple hosts
+type PingManager struct {
+	results map[string]*HostPingResult
+	mutex   sync.RWMutex
+	timeout time.Duration
+}
+
+// NewPingManager creates a new ping manager with the specified timeout
+func NewPingManager(timeout time.Duration) *PingManager {
+	return &PingManager{
+		results: make(map[string]*HostPingResult),
+		timeout: timeout,
+	}
+}
+
+// GetStatus returns the current status for a host
+func (pm *PingManager) GetStatus(hostName string) PingStatus {
+	pm.mutex.RLock()
+	defer pm.mutex.RUnlock()
+
+	if result, exists := pm.results[hostName]; exists {
+		return result.Status
+	}
+	return StatusUnknown
+}
+
+// GetResult returns the complete result for a host
+func (pm *PingManager) GetResult(hostName string) (*HostPingResult, bool) {
+	pm.mutex.RLock()
+	defer pm.mutex.RUnlock()
+
+	result, exists := pm.results[hostName]
+	return result, exists
+}
+
+// updateStatus updates the status for a host
+func (pm *PingManager) updateStatus(hostName string, status PingStatus, err error, duration time.Duration) {
+	pm.mutex.Lock()
+	defer pm.mutex.Unlock()
+
+	pm.results[hostName] = &HostPingResult{
+		HostName: hostName,
+		Status:   status,
+		Error:    err,
+		Duration: duration,
+	}
+}
+
+// PingHost performs an SSH connectivity check for a single host
+func (pm *PingManager) PingHost(ctx context.Context, host config.SSHHost) *HostPingResult {
+	start := time.Now()
+
+	// Mark as connecting
+	pm.updateStatus(host.Name, StatusConnecting, nil, 0)
+
+	// Determine the actual hostname and port
+	hostname := host.Hostname
+	if hostname == "" {
+		hostname = host.Name
+	}
+
+	port := host.Port
+	if port == "" {
+		port = "22"
+	}
+
+	// Create context with timeout
+	pingCtx, cancel := context.WithTimeout(ctx, pm.timeout)
+	defer cancel()
+
+	// Try to establish a TCP connection first (faster than SSH handshake)
+	dialer := &net.Dialer{}
+	conn, err := dialer.DialContext(pingCtx, "tcp", net.JoinHostPort(hostname, port))
+	if err != nil {
+		duration := time.Since(start)
+		pm.updateStatus(host.Name, StatusOffline, err, duration)
+		return &HostPingResult{
+			HostName: host.Name,
+			Status:   StatusOffline,
+			Error:    err,
+			Duration: duration,
+		}
+	}
+	defer conn.Close()
+
+	// If TCP connection succeeds, try SSH handshake
+	sshConfig := &ssh.ClientConfig{
+		User:            host.User,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(), // For ping purposes only
+		Timeout:         time.Second * 2,             // Short timeout for handshake
+	}
+
+	// We don't need to authenticate, just check if SSH is responding
+	sshConn, _, _, err := ssh.NewClientConn(conn, net.JoinHostPort(hostname, port), sshConfig)
+	if sshConn != nil {
+		sshConn.Close()
+	}
+
+	duration := time.Since(start)
+
+	// Even if SSH handshake fails, if we got a TCP connection, consider it online
+	// This handles cases where authentication fails but the host is reachable
+	status := StatusOnline
+	if err != nil && isConnectionError(err) {
+		status = StatusOffline
+	}
+
+	pm.updateStatus(host.Name, status, err, duration)
+	return &HostPingResult{
+		HostName: host.Name,
+		Status:   status,
+		Error:    err,
+		Duration: duration,
+	}
+}
+
+// PingAllHosts pings all hosts concurrently and returns a channel of results
+func (pm *PingManager) PingAllHosts(ctx context.Context, hosts []config.SSHHost) <-chan *HostPingResult {
+	resultChan := make(chan *HostPingResult, len(hosts))
+
+	var wg sync.WaitGroup
+
+	for _, host := range hosts {
+		wg.Add(1)
+		go func(h config.SSHHost) {
+			defer wg.Done()
+			result := pm.PingHost(ctx, h)
+			select {
+			case resultChan <- result:
+			case <-ctx.Done():
+				return
+			}
+		}(host)
+	}
+
+	// Close the channel when all goroutines are done
+	go func() {
+		wg.Wait()
+		close(resultChan)
+	}()
+
+	return resultChan
+}
+
+// isConnectionError determines if an error is a connection-related error
+func isConnectionError(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	errStr := err.Error()
+	connectionErrors := []string{
+		"connection refused",
+		"no route to host",
+		"network is unreachable",
+		"timeout",
+		"connection timed out",
+	}
+
+	for _, connErr := range connectionErrors {
+		if strings.Contains(strings.ToLower(errStr), connErr) {
+			return true
+		}
+	}
+
+	return false
+}

internal/ui/edit_form.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
 )
 
 type editFormModel struct {
@@ -16,6 +17,7 @@ type editFormModel struct {
 	success      bool
 	styles       Styles
 	originalName string
+	host         *config.SSHHost // Store the original host with SourceFile
 	width        int
 	height       int
 	configFile   string
@@ -102,6 +104,7 @@ func NewEditForm(hostName string, styles Styles, width, height int, configFile s
 		inputs:       inputs,
 		focused:      nameInput,
 		originalName: hostName,
+		host:         host,
 		configFile:   configFile,
 		styles:       styles,
 		width:        width,
@@ -201,6 +204,24 @@ func (m *editFormModel) View() string {
 	var b strings.Builder
 
 	b.WriteString(m.styles.FormTitle.Render("Edit SSH Host Configuration"))
+	b.WriteString("\n")
+
+	// Show source file information
+	if m.host != nil && m.host.SourceFile != "" {
+		b.WriteString("\n") // Ligne d'espace avant Config file
+
+		// Style for "Config file:" label in primary color
+		labelStyle := lipgloss.NewStyle().
+			Foreground(lipgloss.Color("#00ADD8")). // Primary color
+			Bold(true)
+
+		// Style for the file path in white
+		pathStyle := lipgloss.NewStyle().
+			Foreground(lipgloss.Color("#FFFFFF"))
+
+		configInfo := labelStyle.Render("Config file: ") + pathStyle.Render(formatConfigFile(m.host.SourceFile))
+		b.WriteString(configInfo)
+	}
 	b.WriteString("\n\n")
 
 	fields := []string{

internal/ui/file_selector.go

@@ -0,0 +1,162 @@
+package ui
+
+import (
+	"fmt"
+	"path/filepath"
+	"sshm/internal/config"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type fileSelectorModel struct {
+	files        []string // Chemins absolus des fichiers
+	displayNames []string // Noms d'affichage conviviaux
+	selected     int
+	styles       Styles
+	width        int
+	height       int
+	title        string
+}
+
+type fileSelectorMsg struct {
+	selectedFile string
+	cancelled    bool
+}
+
+// NewFileSelector creates a new file selector for choosing config files
+func NewFileSelector(title string, styles Styles, width, height int) (*fileSelectorModel, error) {
+	files, err := config.GetAllConfigFiles()
+	if err != nil {
+		return nil, err
+	}
+
+	return newFileSelectorFromFiles(title, styles, width, height, files)
+}
+
+// NewFileSelectorFromBase creates a new file selector starting from a specific base config file
+func NewFileSelectorFromBase(title string, styles Styles, width, height int, baseConfigFile string) (*fileSelectorModel, error) {
+	var files []string
+	var err error
+
+	if baseConfigFile != "" {
+		files, err = config.GetAllConfigFilesFromBase(baseConfigFile)
+	} else {
+		files, err = config.GetAllConfigFiles()
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	return newFileSelectorFromFiles(title, styles, width, height, files)
+}
+
+// newFileSelectorFromFiles creates a file selector from a list of files
+func newFileSelectorFromFiles(title string, styles Styles, width, height int, files []string) (*fileSelectorModel, error) {
+
+	// Convert absolute paths to more user-friendly names
+	var displayNames []string
+	homeDir, _ := config.GetSSHDirectory()
+
+	for _, file := range files {
+		// Check if it's the main config file
+		mainConfig, _ := config.GetDefaultSSHConfigPath()
+		if file == mainConfig {
+			displayNames = append(displayNames, "Main SSH Config (~/.ssh/config)")
+		} else {
+			// Try to make path relative to home/.ssh/
+			if strings.HasPrefix(file, homeDir) {
+				relPath, err := filepath.Rel(homeDir, file)
+				if err == nil {
+					displayNames = append(displayNames, fmt.Sprintf("~/.ssh/%s", relPath))
+				} else {
+					displayNames = append(displayNames, file)
+				}
+			} else {
+				displayNames = append(displayNames, file)
+			}
+		}
+	}
+
+	return &fileSelectorModel{
+		files:        files,
+		displayNames: displayNames,
+		selected:     0,
+		styles:       styles,
+		width:        width,
+		height:       height,
+		title:        title,
+	}, nil
+}
+
+func (m *fileSelectorModel) Init() tea.Cmd {
+	return nil
+}
+
+func (m *fileSelectorModel) Update(msg tea.Msg) (*fileSelectorModel, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		m.styles = NewStyles(m.width)
+		return m, nil
+
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "ctrl+c", "esc":
+			return m, func() tea.Msg {
+				return fileSelectorMsg{cancelled: true}
+			}
+
+		case "enter":
+			selectedFile := ""
+			if m.selected < len(m.files) {
+				selectedFile = m.files[m.selected]
+			}
+			return m, func() tea.Msg {
+				return fileSelectorMsg{selectedFile: selectedFile}
+			}
+
+		case "up", "k":
+			if m.selected > 0 {
+				m.selected--
+			}
+
+		case "down", "j":
+			if m.selected < len(m.files)-1 {
+				m.selected++
+			}
+		}
+	}
+
+	return m, nil
+}
+
+func (m *fileSelectorModel) View() string {
+	var b strings.Builder
+
+	b.WriteString(m.styles.FormTitle.Render(m.title))
+	b.WriteString("\n\n")
+
+	if len(m.files) == 0 {
+		b.WriteString(m.styles.Error.Render("No SSH config files found."))
+		b.WriteString("\n\n")
+		b.WriteString(m.styles.FormHelp.Render("Esc: cancel"))
+		return b.String()
+	}
+
+	for i, displayName := range m.displayNames {
+		if i == m.selected {
+			b.WriteString(m.styles.Selected.Render(fmt.Sprintf("▶ %s", displayName)))
+		} else {
+			b.WriteString(fmt.Sprintf("  %s", displayName))
+		}
+		b.WriteString("\n")
+	}
+
+	b.WriteString("\n")
+	b.WriteString(m.styles.FormHelp.Render("↑/↓: navigate • Enter: select • Esc: cancel"))
+
+	return b.String()
+}

internal/ui/help_form.go

@@ -62,6 +62,10 @@ func (m *helpModel) View() string {
 		"  ",
 		m.styles.HelpText.Render("switch focus"),
 		"    ",
+		m.styles.FocusedLabel.Render("p"),
+		"  ",
+		m.styles.HelpText.Render("ping all"),
+		"    ",
 		m.styles.FocusedLabel.Render("f"),
 		"  ",
 		m.styles.HelpText.Render("port forward"),

internal/ui/info_form.go

@@ -91,6 +91,7 @@ func (m *infoFormModel) View() string {
 		value string
 	}{
 		{"Host Name", m.host.Name},
+		{"Config File", formatConfigFile(m.host.SourceFile)},
 		{"Hostname/IP", m.host.Hostname},
 		{"User", formatOptionalValue(m.host.User)},
 		{"Port", formatOptionalValue(m.host.Port)},

internal/ui/model.go

@@ -2,6 +2,7 @@ package ui
 
 import (
 	"sshm/internal/config"
+	"sshm/internal/connectivity"
 	"sshm/internal/history"
 
 	"github.com/charmbracelet/bubbles/table"
@@ -38,6 +39,7 @@ const (
 	ViewInfo
 	ViewPortForward
 	ViewHelp
+	ViewFileSelector
 )
 
 // PortForwardType defines the type of port forwarding
@@ -72,16 +74,18 @@ type Model struct {
 	deleteMode     bool
 	deleteHost     string
 	historyManager *history.HistoryManager
+	pingManager    *connectivity.PingManager
 	sortMode       SortMode
 	configFile     string // Path to the SSH config file
 
 	// View management
-	viewMode        ViewMode
-	addForm         *addFormModel
-	editForm        *editFormModel
-	infoForm        *infoFormModel
-	portForwardForm *portForwardModel
-	helpForm        *helpModel
+	viewMode         ViewMode
+	addForm          *addFormModel
+	editForm         *editFormModel
+	infoForm         *infoFormModel
+	portForwardForm  *portForwardModel
+	helpForm         *helpModel
+	fileSelectorForm *fileSelectorModel
 
 	// Terminal size and styles
 	width  int

internal/ui/table.go

@@ -9,6 +9,260 @@ import (
 	"github.com/charmbracelet/bubbles/table"
 )
 
+// calculateDynamicColumnWidths calculates optimal column widths based on terminal width
+// and content length, ensuring all content fits when possible
+func (m *Model) calculateDynamicColumnWidths(hosts []config.SSHHost) (int, int, int, int) {
+	if m.width <= 0 {
+		// Fallback to static widths if terminal width is not available
+		return calculateNameColumnWidth(hosts), 25, calculateTagsColumnWidth(hosts), calculateLastLoginColumnWidth(hosts, m.historyManager)
+	}
+
+	// Calculate content lengths
+	maxNameLength := 8       // Minimum for "Name" header + status indicator
+	maxHostnameLength := 8   // Minimum for "Hostname" header
+	maxTagsLength := 8       // Minimum for "Tags" header
+	maxLastLoginLength := 12 // Minimum for "Last Login" header
+
+	for _, host := range hosts {
+		// Name column includes status indicator (2 chars) + space (1 char) + name
+		nameLength := 3 + len(host.Name)
+		if nameLength > maxNameLength {
+			maxNameLength = nameLength
+		}
+
+		if len(host.Hostname) > maxHostnameLength {
+			maxHostnameLength = len(host.Hostname)
+		}
+
+		// Calculate tags string length
+		var tagsStr string
+		if len(host.Tags) > 0 {
+			var formattedTags []string
+			for _, tag := range host.Tags {
+				formattedTags = append(formattedTags, "#"+tag)
+			}
+			tagsStr = strings.Join(formattedTags, " ")
+		}
+		if len(tagsStr) > maxTagsLength {
+			maxTagsLength = len(tagsStr)
+		}
+
+		// Calculate last login length
+		if m.historyManager != nil {
+			if lastConnect, exists := m.historyManager.GetLastConnectionTime(host.Name); exists {
+				timeStr := formatTimeAgo(lastConnect)
+				if len(timeStr) > maxLastLoginLength {
+					maxLastLoginLength = len(timeStr)
+				}
+			}
+		}
+	}
+
+	// Add padding to each column
+	maxNameLength += 2
+	maxHostnameLength += 2
+	maxTagsLength += 2
+	maxLastLoginLength += 2
+
+	// Calculate available width (minus borders and separators)
+	// Table has borders (2 chars) + column separators (3 chars between 4 columns)
+	availableWidth := m.width - 5
+
+	totalNeededWidth := maxNameLength + maxHostnameLength + maxTagsLength + maxLastLoginLength
+
+	if totalNeededWidth <= availableWidth {
+		// Everything fits perfectly
+		return maxNameLength, maxHostnameLength, maxTagsLength, maxLastLoginLength
+	}
+
+	// Need to adjust widths - prioritize columns by importance
+	// Priority: Name > Hostname > Last Login > Tags
+
+	// Calculate minimum widths
+	minNameWidth := 15 // Enough for status + short name
+	minHostnameWidth := 15
+	minLastLoginWidth := 12
+	minTagsWidth := 10
+
+	remainingWidth := availableWidth
+
+	// Allocate minimum widths first
+	nameWidth := minNameWidth
+	hostnameWidth := minHostnameWidth
+	lastLoginWidth := minLastLoginWidth
+	tagsWidth := minTagsWidth
+
+	remainingWidth -= (nameWidth + hostnameWidth + lastLoginWidth + tagsWidth)
+
+	// Distribute remaining space proportionally
+	if remainingWidth > 0 {
+		// Calculate how much each column wants beyond minimum
+		nameWant := maxNameLength - minNameWidth
+		hostnameWant := maxHostnameLength - minHostnameWidth
+		lastLoginWant := maxLastLoginLength - minLastLoginWidth
+		tagsWant := maxTagsLength - minTagsWidth
+
+		totalWant := nameWant + hostnameWant + lastLoginWant + tagsWant
+
+		if totalWant > 0 {
+			// Distribute proportionally
+			nameExtra := (nameWant * remainingWidth) / totalWant
+			hostnameExtra := (hostnameWant * remainingWidth) / totalWant
+			lastLoginExtra := (lastLoginWant * remainingWidth) / totalWant
+			tagsExtra := remainingWidth - nameExtra - hostnameExtra - lastLoginExtra
+
+			nameWidth += nameExtra
+			hostnameWidth += hostnameExtra
+			lastLoginWidth += lastLoginExtra
+			tagsWidth += tagsExtra
+		}
+	}
+
+	return nameWidth, hostnameWidth, tagsWidth, lastLoginWidth
+}
+
+// updateTableRows updates the table with filtered hosts
+func (m *Model) updateTableRows() {
+	var rows []table.Row
+	hostsToShow := m.filteredHosts
+	if hostsToShow == nil {
+		hostsToShow = m.hosts
+	}
+
+	for _, host := range hostsToShow {
+		// Get ping status indicator
+		statusIndicator := m.getPingStatusIndicator(host.Name)
+
+		// Format tags for display
+		var tagsStr string
+		if len(host.Tags) > 0 {
+			// Add the # prefix to each tag and join them with spaces
+			var formattedTags []string
+			for _, tag := range host.Tags {
+				formattedTags = append(formattedTags, "#"+tag)
+			}
+			tagsStr = strings.Join(formattedTags, " ")
+		}
+
+		// Format last login information
+		var lastLoginStr string
+		if m.historyManager != nil {
+			if lastConnect, exists := m.historyManager.GetLastConnectionTime(host.Name); exists {
+				lastLoginStr = formatTimeAgo(lastConnect)
+			}
+		}
+
+		rows = append(rows, table.Row{
+			statusIndicator + " " + host.Name,
+			host.Hostname,
+			// host.User,      // Commented to save space
+			// host.Port,      // Commented to save space
+			tagsStr,
+			lastLoginStr,
+		})
+	}
+
+	m.table.SetRows(rows)
+
+	// Update table height and columns based on current terminal size
+	m.updateTableHeight()
+	m.updateTableColumns()
+}
+
+// updateTableHeight dynamically adjusts table height based on terminal size
+func (m *Model) updateTableHeight() {
+	if !m.ready {
+		return
+	}
+
+	// Calculate dynamic table height based on terminal size
+	// Layout breakdown:
+	// - ASCII title: 5 lines (1 empty + 4 text lines)
+	// - Search bar: 1 line
+	// - Help text: 1 line
+	// - App margins/spacing: 3 lines
+	// - Safety margin: 3 lines (to ensure UI elements are always visible)
+	// Total reserved: 13 lines minimum to preserve essential UI elements
+	reservedHeight := 13
+	availableHeight := m.height - reservedHeight
+	hostCount := len(m.table.Rows())
+
+	// Minimum height should be at least 3 rows for basic usability
+	// Even in very small terminals, we want to show at least header + 2 hosts
+	minTableHeight := 4 // 1 header + 3 data rows minimum
+	maxTableHeight := availableHeight
+	if maxTableHeight < minTableHeight {
+		maxTableHeight = minTableHeight
+	}
+
+	tableHeight := 1 // header
+	dataRowsNeeded := hostCount
+	maxDataRows := maxTableHeight - 1 // subtract 1 for header
+
+	if dataRowsNeeded <= maxDataRows {
+		// We have enough space for all hosts
+		tableHeight += dataRowsNeeded
+	} else {
+		// We need to limit to available space
+		tableHeight += maxDataRows
+	}
+
+	// Add one extra line to prevent the last host from being hidden
+	// This compensates for table rendering quirks in bubble tea
+	tableHeight += 1
+
+	// Update table height
+	m.table.SetHeight(tableHeight)
+}
+
+// updateTableColumns dynamically adjusts table column widths based on terminal size
+func (m *Model) updateTableColumns() {
+	if !m.ready {
+		return
+	}
+
+	hostsToShow := m.filteredHosts
+	if hostsToShow == nil {
+		hostsToShow = m.hosts
+	}
+
+	// Use dynamic column width calculation
+	nameWidth, hostnameWidth, tagsWidth, lastLoginWidth := m.calculateDynamicColumnWidths(hostsToShow)
+
+	// Create new columns with updated widths and sort indicators
+	nameTitle := "Name"
+	lastLoginTitle := "Last Login"
+
+	// Add sort indicators based on current sort mode
+	switch m.sortMode {
+	case SortByName:
+		nameTitle += " ↓"
+	case SortByLastUsed:
+		lastLoginTitle += " ↓"
+	}
+
+	columns := []table.Column{
+		{Title: nameTitle, Width: nameWidth},
+		{Title: "Hostname", Width: hostnameWidth},
+		// {Title: "User", Width: userWidth},      // Commented to save space
+		// {Title: "Port", Width: portWidth},      // Commented to save space
+		{Title: "Tags", Width: tagsWidth},
+		{Title: lastLoginTitle, Width: lastLoginWidth},
+	}
+
+	m.table.SetColumns(columns)
+}
+
+// max returns the maximum of two integers
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+// Legacy functions for compatibility
+
 // calculateNameColumnWidth calculates the optimal width for the Name column
 // based on the longest hostname, with a minimum of 8 and maximum of 40 characters
 func calculateNameColumnWidth(hosts []config.SSHHost) int {
@@ -90,172 +344,3 @@ func calculateLastLoginColumnWidth(hosts []config.SSHHost, historyManager *histo
 
 	return maxLength
 }
-
-// updateTableRows updates the table with filtered hosts
-func (m *Model) updateTableRows() {
-	var rows []table.Row
-	hostsToShow := m.filteredHosts
-	if hostsToShow == nil {
-		hostsToShow = m.hosts
-	}
-
-	for _, host := range hostsToShow {
-		// Format tags for display
-		var tagsStr string
-		if len(host.Tags) > 0 {
-			// Add the # prefix to each tag and join them with spaces
-			var formattedTags []string
-			for _, tag := range host.Tags {
-				formattedTags = append(formattedTags, "#"+tag)
-			}
-			tagsStr = strings.Join(formattedTags, " ")
-		}
-
-		// Format last login information
-		var lastLoginStr string
-		if m.historyManager != nil {
-			if lastConnect, exists := m.historyManager.GetLastConnectionTime(host.Name); exists {
-				lastLoginStr = formatTimeAgo(lastConnect)
-			}
-		}
-
-		rows = append(rows, table.Row{
-			host.Name,
-			host.Hostname,
-			// host.User,      // Commented to save space
-			// host.Port,      // Commented to save space
-			tagsStr,
-			lastLoginStr,
-		})
-	}
-
-	m.table.SetRows(rows)
-
-	// Update table height and columns based on current terminal size
-	m.updateTableHeight()
-	m.updateTableColumns()
-}
-
-// updateTableHeight dynamically adjusts table height based on terminal size
-func (m *Model) updateTableHeight() {
-	if !m.ready {
-		return
-	}
-
-	// Calculate dynamic table height based on terminal size
-	// Layout breakdown:
-	// - ASCII title: 5 lines (1 empty + 4 text lines)
-	// - Search bar: 1 line
-	// - Help text: 1 line
-	// - App margins/spacing: 3 lines
-	// - Safety margin: 3 lines (to ensure UI elements are always visible)
-	// Total reserved: 13 lines minimum to preserve essential UI elements
-	reservedHeight := 13
-	availableHeight := m.height - reservedHeight
-	hostCount := len(m.table.Rows())
-
-	// Minimum height should be at least 3 rows for basic usability
-	// Even in very small terminals, we want to show at least header + 2 hosts
-	minTableHeight := 4 // 1 header + 3 data rows minimum
-	maxTableHeight := availableHeight
-	if maxTableHeight < minTableHeight {
-		maxTableHeight = minTableHeight
-	}
-
-	tableHeight := 1 // header
-	dataRowsNeeded := hostCount
-	maxDataRows := maxTableHeight - 1 // subtract 1 for header
-
-	if dataRowsNeeded <= maxDataRows {
-		// We have enough space for all hosts
-		tableHeight += dataRowsNeeded
-	} else {
-		// We need to limit to available space
-		tableHeight += maxDataRows
-	}
-
-	// Add one extra line to prevent the last host from being hidden
-	// This compensates for table rendering quirks in bubble tea
-	tableHeight += 1
-
-	// Update table height
-	m.table.SetHeight(tableHeight)
-}
-
-// updateTableColumns dynamically adjusts table column widths based on terminal size
-func (m *Model) updateTableColumns() {
-	if !m.ready {
-		return
-	}
-
-	hostsToShow := m.filteredHosts
-	if hostsToShow == nil {
-		hostsToShow = m.hosts
-	}
-
-	// Calculate base column widths
-	nameWidth := calculateNameColumnWidth(hostsToShow)
-	tagsWidth := calculateTagsColumnWidth(hostsToShow)
-	lastLoginWidth := calculateLastLoginColumnWidth(hostsToShow, m.historyManager)
-
-	// Fixed column widths
-	hostnameWidth := 25
-	// userWidth := 12      // Commented to save space
-	// portWidth := 6       // Commented to save space
-
-	// Calculate total width needed for all columns
-	totalFixedWidth := hostnameWidth // + userWidth + portWidth  // Commented columns
-	totalVariableWidth := nameWidth + tagsWidth + lastLoginWidth
-	totalWidth := totalFixedWidth + totalVariableWidth
-
-	// Available width (accounting for table borders and padding)
-	availableWidth := m.width - 4 // 4 chars for borders and padding
-
-	// If the table is too wide, scale down the variable columns proportionally
-	if totalWidth > availableWidth {
-		excessWidth := totalWidth - availableWidth
-		variableColumnsWidth := totalVariableWidth
-
-		if variableColumnsWidth > 0 {
-			// Reduce variable columns proportionally
-			nameReduction := (excessWidth * nameWidth) / variableColumnsWidth
-			tagsReduction := (excessWidth * tagsWidth) / variableColumnsWidth
-			lastLoginReduction := excessWidth - nameReduction - tagsReduction
-
-			nameWidth = max(8, nameWidth-nameReduction)
-			tagsWidth = max(8, tagsWidth-tagsReduction)
-			lastLoginWidth = max(10, lastLoginWidth-lastLoginReduction)
-		}
-	}
-
-	// Create new columns with updated widths and sort indicators
-	nameTitle := "Name"
-	lastLoginTitle := "Last Login"
-
-	// Add sort indicators based on current sort mode
-	switch m.sortMode {
-	case SortByName:
-		nameTitle += " ↓"
-	case SortByLastUsed:
-		lastLoginTitle += " ↓"
-	}
-
-	columns := []table.Column{
-		{Title: nameTitle, Width: nameWidth},
-		{Title: "Hostname", Width: hostnameWidth},
-		// {Title: "User", Width: userWidth},      // Commented to save space
-		// {Title: "Port", Width: portWidth},      // Commented to save space
-		{Title: "Tags", Width: tagsWidth},
-		{Title: lastLoginTitle, Width: lastLoginWidth},
-	}
-
-	m.table.SetColumns(columns)
-}
-
-// max returns the maximum of two integers
-func max(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}

internal/ui/tui.go

@@ -3,8 +3,10 @@ package ui
 import (
 	"fmt"
 	"strings"
+	"time"
 
 	"sshm/internal/config"
+	"sshm/internal/connectivity"
 	"sshm/internal/history"
 
 	"github.com/charmbracelet/bubbles/table"
@@ -26,10 +28,14 @@ func NewModel(hosts []config.SSHHost, configFile string) Model {
 	// Create initial styles (will be updated on first WindowSizeMsg)
 	styles := NewStyles(80) // Default width
 
+	// Initialize ping manager with 5 second timeout
+	pingManager := connectivity.NewPingManager(5 * time.Second)
+
 	// Create the model with default sorting by name
 	m := Model{
 		hosts:          hosts,
 		historyManager: historyManager,
+		pingManager:    pingManager,
 		sortMode:       SortByName,
 		configFile:     configFile,
 		styles:         styles,
@@ -48,19 +54,13 @@ func NewModel(hosts []config.SSHHost, configFile string) Model {
 	ti.CharLimit = 50
 	ti.Width = 50
 
-	// Calculate optimal width for the Name column
-	nameWidth := calculateNameColumnWidth(sortedHosts)
-
-	// Calculate optimal width for the Tags column
-	tagsWidth := calculateTagsColumnWidth(sortedHosts)
-
-	// Calculate optimal width for the Last Login column
-	lastLoginWidth := calculateLastLoginColumnWidth(sortedHosts, historyManager)
+	// Use dynamic column width calculation (will fallback to static if width not available)
+	nameWidth, hostnameWidth, tagsWidth, lastLoginWidth := m.calculateDynamicColumnWidths(sortedHosts)
 
 	// Create table columns
 	columns := []table.Column{
 		{Title: "Name", Width: nameWidth},
-		{Title: "Hostname", Width: 25},
+		{Title: "Hostname", Width: hostnameWidth},
 		// {Title: "User", Width: 12},                  // Commented to save space
 		// {Title: "Port", Width: 6},                   // Commented to save space
 		{Title: "Tags", Width: tagsWidth},
@@ -70,6 +70,9 @@ func NewModel(hosts []config.SSHHost, configFile string) Model {
 	// Convert hosts to table rows
 	var rows []table.Row
 	for _, host := range sortedHosts {
+		// Get ping status indicator
+		statusIndicator := m.getPingStatusIndicator(host.Name)
+
 		// Format tags for display
 		var tagsStr string
 		if len(host.Tags) > 0 {
@@ -90,7 +93,7 @@ func NewModel(hosts []config.SSHHost, configFile string) Model {
 		}
 
 		rows = append(rows, table.Row{
-			host.Name,
+			statusIndicator + " " + host.Name,
 			host.Hostname,
 			// host.User,        // Commented to save space
 			// host.Port,        // Commented to save space

internal/ui/update.go

@@ -1,20 +1,59 @@
 package ui
 
 import (
+	"context"
 	"fmt"
 	"os/exec"
+	"time"
 
 	"sshm/internal/config"
+	"sshm/internal/connectivity"
 
 	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
 )
 
+// Messages for SSH ping functionality
+type (
+	pingResultMsg *connectivity.HostPingResult
+)
+
+// startPingAllCmd creates a command to ping all hosts concurrently
+func (m Model) startPingAllCmd() tea.Cmd {
+	if m.pingManager == nil {
+		return nil
+	}
+
+	return tea.Batch(
+		// Create individual ping commands for each host
+		func() tea.Cmd {
+			var cmds []tea.Cmd
+			for _, host := range m.hosts {
+				cmds = append(cmds, pingSingleHostCmd(m.pingManager, host))
+			}
+			return tea.Batch(cmds...)
+		}(),
+	)
+}
+
+// listenForPingResultsCmd is no longer needed since we use individual ping commands
+
+// pingSingleHostCmd creates a command to ping a single host
+func pingSingleHostCmd(pingManager *connectivity.PingManager, host config.SSHHost) tea.Cmd {
+	return func() tea.Msg {
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		result := pingManager.PingHost(ctx, host)
+		return pingResultMsg(result)
+	}
+}
+
 // Init initializes the model
 func (m Model) Init() tea.Cmd {
 	return tea.Batch(
 		textinput.Blink,
-		// Ajoute ici d'autres tea.Cmd si tu veux charger des données, démarrer un spinner, etc.
+		// Ping is now optional - use 'p' key to start ping
 	)
 }
 
@@ -61,6 +100,19 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.helpForm.height = m.height
 			m.helpForm.styles = m.styles
 		}
+		if m.fileSelectorForm != nil {
+			m.fileSelectorForm.width = m.width
+			m.fileSelectorForm.height = m.height
+			m.fileSelectorForm.styles = m.styles
+		}
+		return m, nil
+
+	case pingResultMsg:
+		// Handle ping result - update table display
+		if msg != nil {
+			// Update the table to reflect the new ping status
+			m.updateTableRows()
+		}
 		return m, nil
 
 	case addFormSubmitMsg:
@@ -158,6 +210,21 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.table.Focus()
 		return m, nil
 
+	case fileSelectorMsg:
+		if msg.cancelled {
+			// Cancel: return to list view
+			m.viewMode = ViewList
+			m.fileSelectorForm = nil
+			m.table.Focus()
+			return m, nil
+		} else {
+			// File selected: proceed to add form with selected file
+			m.addForm = NewAddForm("", m.styles, m.width, m.height, msg.selectedFile)
+			m.viewMode = ViewAdd
+			m.fileSelectorForm = nil
+			return m, textinput.Blink
+		}
+
 	case infoFormEditMsg:
 		// Switch from info to edit mode
 		editForm, err := NewEditForm(msg.hostName, m.styles, m.width, m.height, m.configFile)
@@ -257,6 +324,13 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 				m.helpForm = newForm
 				return m, cmd
 			}
+		case ViewFileSelector:
+			if m.fileSelectorForm != nil {
+				var newForm *fileSelectorModel
+				newForm, cmd = m.fileSelectorForm.Update(msg)
+				m.fileSelectorForm = newForm
+				return m, cmd
+			}
 		case ViewList:
 			// Handle list view keys
 			return m.handleListViewKeys(msg)
@@ -369,7 +443,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			// Connect to the selected host
 			selected := m.table.SelectedRow()
 			if len(selected) > 0 {
-				hostName := selected[0] // The hostname is in the first column
+				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
 
 				// Record the connection in history
 				if m.historyManager != nil {
@@ -398,7 +472,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			// Edit the selected host
 			selected := m.table.SelectedRow()
 			if len(selected) > 0 {
-				hostName := selected[0] // The hostname is in the first column
+				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
 				editForm, err := NewEditForm(hostName, m.styles, m.width, m.height, m.configFile)
 				if err != nil {
 					// Handle error - could show in UI
@@ -414,7 +488,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			// Show info for the selected host
 			selected := m.table.SelectedRow()
 			if len(selected) > 0 {
-				hostName := selected[0] // The hostname is in the first column
+				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
 				infoForm, err := NewInfoForm(hostName, m.styles, m.width, m.height, m.configFile)
 				if err != nil {
 					// Handle error - could show in UI
@@ -427,9 +501,40 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		}
 	case "a":
 		if !m.searchMode && !m.deleteMode {
-			// Add a new host
-			m.addForm = NewAddForm("", m.styles, m.width, m.height, m.configFile)
-			m.viewMode = ViewAdd
+			// Check if there are multiple config files starting from the current base config
+			var configFiles []string
+			var err error
+
+			if m.configFile != "" {
+				// Use the specified config file as base
+				configFiles, err = config.GetAllConfigFilesFromBase(m.configFile)
+			} else {
+				// Use the default config file as base
+				configFiles, err = config.GetAllConfigFiles()
+			}
+
+			if err != nil || len(configFiles) <= 1 {
+				// Only one config file (or error), go directly to add form
+				var configFile string
+				if len(configFiles) == 1 {
+					configFile = configFiles[0]
+				} else {
+					configFile = m.configFile
+				}
+				m.addForm = NewAddForm("", m.styles, m.width, m.height, configFile)
+				m.viewMode = ViewAdd
+			} else {
+				// Multiple config files, show file selector
+				fileSelectorForm, err := NewFileSelectorFromBase("Select config file to add host to:", m.styles, m.width, m.height, m.configFile)
+				if err != nil {
+					// Fallback to default behavior if file selector fails
+					m.addForm = NewAddForm("", m.styles, m.width, m.height, m.configFile)
+					m.viewMode = ViewAdd
+				} else {
+					m.fileSelectorForm = fileSelectorForm
+					m.viewMode = ViewFileSelector
+				}
+			}
 			return m, textinput.Blink
 		}
 	case "d":
@@ -437,19 +542,24 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			// Delete the selected host
 			selected := m.table.SelectedRow()
 			if len(selected) > 0 {
-				hostName := selected[0] // The hostname is in the first column
+				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
 				m.deleteMode = true
 				m.deleteHost = hostName
 				m.table.Blur()
 				return m, nil
 			}
 		}
+	case "p":
+		if !m.searchMode && !m.deleteMode {
+			// Ping all hosts
+			return m, m.startPingAllCmd()
+		}
 	case "f":
 		if !m.searchMode && !m.deleteMode {
 			// Port forwarding for the selected host
 			selected := m.table.SelectedRow()
 			if len(selected) > 0 {
-				hostName := selected[0] // The hostname is in the first column
+				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
 				m.portForwardForm = NewPortForwardForm(hostName, m.styles, m.width, m.height, m.configFile)
 				m.viewMode = ViewPortForward
 				return m, textinput.Blink

internal/ui/utils.go

@@ -2,6 +2,8 @@ package ui
 
 import (
 	"fmt"
+	"sshm/internal/connectivity"
+	"strings"
 	"time"
 )
 
@@ -55,3 +57,49 @@ func formatTimeAgo(t time.Time) string {
 		return fmt.Sprintf("%d years ago", years)
 	}
 }
+
+// formatConfigFile formats a config file path for display
+func formatConfigFile(filePath string) string {
+	if filePath == "" {
+		return "Unknown"
+	}
+	// Show just the filename and parent directory for readability
+	parts := strings.Split(filePath, "/")
+	if len(parts) >= 2 {
+		return fmt.Sprintf(".../%s/%s", parts[len(parts)-2], parts[len(parts)-1])
+	}
+	return filePath
+}
+
+// getPingStatusIndicator returns a colored circle indicator based on ping status
+func (m *Model) getPingStatusIndicator(hostName string) string {
+	if m.pingManager == nil {
+		return "⚫" // Gray circle for unknown
+	}
+
+	status := m.pingManager.GetStatus(hostName)
+	switch status {
+	case connectivity.StatusOnline:
+		return "🟢" // Green circle for online
+	case connectivity.StatusOffline:
+		return "🔴" // Red circle for offline
+	case connectivity.StatusConnecting:
+		return "🟡" // Yellow circle for connecting
+	default:
+		return "⚫" // Gray circle for unknown
+	}
+}
+
+// extractHostNameFromTableRow extracts the host name from the first column,
+// removing the ping status indicator
+func extractHostNameFromTableRow(firstColumn string) string {
+	// The first column format is: "🟢 hostname" or "⚫ hostname" etc.
+	// We need to remove the emoji and space to get just the hostname
+	parts := strings.Fields(firstColumn)
+	if len(parts) >= 2 {
+		// Return everything after the first part (the emoji)
+		return strings.Join(parts[1:], " ")
+	}
+	// Fallback: if there's no space, return the whole string
+	return firstColumn
+}

internal/ui/view.go

@@ -35,6 +35,10 @@ func (m Model) View() string {
 		if m.helpForm != nil {
 			return m.helpForm.View()
 		}
+	case ViewFileSelector:
+		if m.fileSelectorForm != nil {
+			return m.fileSelectorForm.View()
+		}
 	case ViewList:
 		return m.renderListView()
 	}
@@ -70,7 +74,7 @@ func (m Model) renderListView() string {
 	// Add the help text
 	var helpText string
 	if !m.searchMode {
-		helpText = " ↑/↓: navigate • Enter: connect • i: info • h: help • q: quit"
+		helpText = " ↑/↓: navigate • Enter: connect • p: ping all • i: info • h: help • q: quit"
 	} else {
 		helpText = " Type to filter • Enter: validate • Tab: switch • ESC: quit"
 	}