feat(ssh): rewrite SSH cache system in native Zig

- Eliminates standalone bash dependency
- Consolidates `+list-ssh-cache` and `+clear-ssh-cache` actions into
single `+ssh-cache` action with args
- Structured cache format with timestamps and expiration support
- Memory-safe entry handling with proper file locking
- Comprehensive hostname validation (IPv4/IPv6/domains)
- Atomic updates via temp file + rename
- Updated shell integrations for improved cross-platform support and
reliability
- Cache operations are now unit-testable
This commit is contained in:
Jason Rayne
2025-07-03 20:11:45 -07:00
parent e25aa9f424
commit 75c703071a
9 changed files with 1401 additions and 377 deletions

View File

@ -9,8 +9,7 @@ const list_keybinds = @import("list_keybinds.zig");
const list_themes = @import("list_themes.zig");
const list_colors = @import("list_colors.zig");
const list_actions = @import("list_actions.zig");
const list_ssh_cache = @import("list_ssh_cache.zig");
const clear_ssh_cache = @import("clear_ssh_cache.zig");
const ssh_cache = @import("ssh_cache.zig");
const edit_config = @import("edit_config.zig");
const show_config = @import("show_config.zig");
const validate_config = @import("validate_config.zig");
@ -43,11 +42,8 @@ pub const Action = enum {
/// List keybind actions
@"list-actions",
/// List hosts cached by SSH shell integration for terminfo installation
@"list-ssh-cache",
/// Clear hosts cached by SSH shell integration for terminfo installation
@"clear-ssh-cache",
/// Manage SSH terminfo cache for automatic remote host setup
@"ssh-cache",
/// Edit the config file in the configured terminal editor.
@"edit-config",
@ -163,8 +159,7 @@ pub const Action = enum {
.@"list-themes" => try list_themes.run(alloc),
.@"list-colors" => try list_colors.run(alloc),
.@"list-actions" => try list_actions.run(alloc),
.@"list-ssh-cache" => try list_ssh_cache.run(alloc),
.@"clear-ssh-cache" => try clear_ssh_cache.run(alloc),
.@"ssh-cache" => try ssh_cache.run(alloc),
.@"edit-config" => try edit_config.run(alloc),
.@"show-config" => try show_config.run(alloc),
.@"validate-config" => try validate_config.run(alloc),
@ -202,8 +197,7 @@ pub const Action = enum {
.@"list-themes" => list_themes.Options,
.@"list-colors" => list_colors.Options,
.@"list-actions" => list_actions.Options,
.@"list-ssh-cache" => list_ssh_cache.Options,
.@"clear-ssh-cache" => clear_ssh_cache.Options,
.@"ssh-cache" => ssh_cache.Options,
.@"edit-config" => edit_config.Options,
.@"show-config" => show_config.Options,
.@"validate-config" => validate_config.Options,

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@ -1,40 +0,0 @@
const std = @import("std");
const Allocator = std.mem.Allocator;
const args = @import("args.zig");
const Action = @import("action.zig").Action;
const ssh_cache = @import("ssh_cache.zig");
pub const Options = struct {
pub fn deinit(self: Options) void {
_ = self;
}
/// Enables `-h` and `--help` to work.
pub fn help(self: Options) !void {
_ = self;
return Action.help_error;
}
};
/// Clear the Ghostty SSH terminfo cache.
///
/// This command removes the cache of hosts where Ghostty's terminfo has been installed
/// via the ssh-terminfo shell integration feature. After clearing, terminfo will be
/// reinstalled on the next SSH connection to previously cached hosts.
///
/// Use this if you need to force reinstallation of terminfo or clean up old entries.
pub fn run(alloc: Allocator) !u8 {
var opts: Options = .{};
defer opts.deinit();
{
var iter = try args.argsIterator(alloc);
defer iter.deinit();
try args.parse(Options, alloc, &opts, &iter);
}
const stdout = std.io.getStdOut().writer();
try ssh_cache.clearCache(alloc, stdout);
return 0;
}

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@ -1,41 +0,0 @@
const std = @import("std");
const Allocator = std.mem.Allocator;
const args = @import("args.zig");
const Action = @import("action.zig").Action;
const ssh_cache = @import("ssh_cache.zig");
pub const Options = struct {
pub fn deinit(self: Options) void {
_ = self;
}
/// Enables `-h` and `--help` to work.
pub fn help(self: Options) !void {
_ = self;
return Action.help_error;
}
};
/// List hosts with Ghostty SSH terminfo installed via the ssh-terminfo shell integration feature.
///
/// This command shows all remote hosts where Ghostty's terminfo has been successfully
/// installed through the SSH integration. The cache is automatically maintained when
/// connecting to remote hosts with `shell-integration-features = ssh-terminfo` enabled.
///
/// Use `+clear-ssh-cache` to remove cached entries if you need to force terminfo
/// reinstallation or clean up stale host entries.
pub fn run(alloc: Allocator) !u8 {
var opts: Options = .{};
defer opts.deinit();
{
var iter = try args.argsIterator(alloc);
defer iter.deinit();
try args.parse(Options, alloc, &opts, &iter);
}
const stdout = std.io.getStdOut().writer();
try ssh_cache.listCachedHosts(alloc, stdout);
return 0;
}

View File

@ -1,51 +1,754 @@
const std = @import("std");
const fs = std.fs;
const Allocator = std.mem.Allocator;
const Child = std.process.Child;
const xdg = @import("../os/xdg.zig");
const args = @import("args.zig");
const Action = @import("action.zig").Action;
/// Get the path to the shared cache script
fn getCacheScriptPath(alloc: Allocator) ![]u8 {
// Use GHOSTTY_RESOURCES_DIR if available, otherwise assume relative path
const resources_dir = std.process.getEnvVarOwned(alloc, "GHOSTTY_RESOURCES_DIR") catch {
// Fallback: assume we're running from build directory
return try alloc.dupe(u8, "src");
pub const CacheError = error{
InvalidCacheKey,
CacheLocked,
} || fs.File.OpenError || fs.File.WriteError || Allocator.Error;
const MAX_CACHE_SIZE = 512 * 1024; // 512KB - sufficient for approximately 10k entries
const NEVER_EXPIRE = 0;
const SECONDS_PER_DAY = 86400;
pub const Options = struct {
clear: bool = false,
add: ?[]const u8 = null,
remove: ?[]const u8 = null,
host: ?[]const u8 = null,
@"expire-days": u32 = NEVER_EXPIRE,
pub fn deinit(self: *Options) void {
_ = self;
}
pub fn help(self: Options) !void {
_ = self;
return Action.help_error;
}
};
const CacheEntry = struct {
hostname: []const u8,
timestamp: i64,
terminfo_version: []const u8,
fn parse(line: []const u8) ?CacheEntry {
const trimmed = std.mem.trim(u8, line, " \t\r\n");
if (trimmed.len == 0) return null;
// Parse format: hostname|timestamp|terminfo_version
var iter = std.mem.tokenizeScalar(u8, trimmed, '|');
const hostname = iter.next() orelse return null;
const timestamp_str = iter.next() orelse return null;
const terminfo_version = iter.next() orelse "xterm-ghostty";
const timestamp = std.fmt.parseInt(i64, timestamp_str, 10) catch |err| {
std.log.warn("Invalid timestamp in cache entry: {s} err={}", .{ timestamp_str, err });
return null;
};
defer alloc.free(resources_dir);
return try std.fs.path.join(alloc, &[_][]const u8{ resources_dir, "shell-integration", "shared", "ghostty-ssh-cache" });
return CacheEntry{
.hostname = hostname,
.timestamp = timestamp,
.terminfo_version = terminfo_version,
};
}
fn format(self: CacheEntry, writer: anytype) !void {
try writer.print("{s}|{d}|{s}\n", .{ self.hostname, self.timestamp, self.terminfo_version });
}
fn isExpired(self: CacheEntry, expire_days: u32) bool {
if (expire_days == NEVER_EXPIRE) return false;
const now = std.time.timestamp();
const age_days = @divTrunc(now - self.timestamp, SECONDS_PER_DAY);
return age_days > expire_days;
}
};
const AddResult = enum {
added,
updated,
};
fn getCachePath(allocator: Allocator) ![]const u8 {
const state_dir = try xdg.state(allocator, .{ .subdir = "ghostty" });
defer allocator.free(state_dir);
return try std.fs.path.join(allocator, &.{ state_dir, "ssh_cache" });
}
/// Generic function to run cache script commands
fn runCacheCommand(alloc: Allocator, writer: anytype, command: []const u8) !void {
const script_path = try getCacheScriptPath(alloc);
defer alloc.free(script_path);
// Supports both standalone hostnames and user@hostname format
fn isValidCacheKey(key: []const u8) bool {
if (key.len == 0 or key.len > 320) return false; // 253 + 1 + 64 for user@hostname
var child = Child.init(&[_][]const u8{ script_path, command }, alloc);
child.stdout_behavior = .Pipe;
child.stderr_behavior = .Pipe;
// Check for user@hostname format
if (std.mem.indexOf(u8, key, "@")) |at_pos| {
const user = key[0..at_pos];
const hostname = key[at_pos + 1 ..];
return isValidUser(user) and isValidHostname(hostname);
}
try child.spawn();
return isValidHostname(key);
}
const stdout = try child.stdout.?.readToEndAlloc(alloc, std.math.maxInt(usize));
defer alloc.free(stdout);
// Basic hostname validation - accepts domains and IPs (including IPv6 in brackets)
fn isValidHostname(host: []const u8) bool {
if (host.len == 0 or host.len > 253) return false;
const stderr = try child.stderr.?.readToEndAlloc(alloc, std.math.maxInt(usize));
defer alloc.free(stderr);
// Handle IPv6 addresses in brackets
if (host.len >= 4 and host[0] == '[' and host[host.len - 1] == ']') {
const ipv6_part = host[1 .. host.len - 1];
if (ipv6_part.len == 0) return false;
var has_colon = false;
for (ipv6_part) |c| {
switch (c) {
'a'...'f', 'A'...'F', '0'...'9', ':' => {
if (c == ':') has_colon = true;
},
else => return false,
}
}
return has_colon;
}
_ = try child.wait();
// Standard hostname/domain validation
for (host) |c| {
switch (c) {
'a'...'z', 'A'...'Z', '0'...'9', '.', '-' => {},
else => return false,
}
}
// Output the results regardless of exit code
try writer.writeAll(stdout);
if (stderr.len > 0) {
try writer.writeAll(stderr);
// No leading/trailing dots or hyphens, no consecutive dots
if (host[0] == '.' or host[0] == '-' or
host[host.len - 1] == '.' or host[host.len - 1] == '-')
{
return false;
}
return std.mem.indexOf(u8, host, "..") == null;
}
fn isValidUser(user: []const u8) bool {
if (user.len == 0 or user.len > 64) return false;
for (user) |c| {
switch (c) {
'a'...'z', 'A'...'Z', '0'...'9', '_', '-', '.' => {},
else => return false,
}
}
return true;
}
fn acquireFileLock(file: fs.File) CacheError!void {
_ = file.tryLock(.exclusive) catch {
return CacheError.CacheLocked;
};
}
fn readCacheFile(
alloc: Allocator,
path: []const u8,
entries: *std.StringHashMap(CacheEntry),
) !void {
const file = fs.openFileAbsolute(path, .{}) catch |err| switch (err) {
error.FileNotFound => return,
else => return err,
};
defer file.close();
const content = try file.readToEndAlloc(alloc, MAX_CACHE_SIZE);
defer alloc.free(content);
var lines = std.mem.tokenizeScalar(u8, content, '\n');
while (lines.next()) |line| {
const trimmed = std.mem.trim(u8, line, " \t\r");
if (CacheEntry.parse(trimmed)) |entry| {
// Always allocate hostname first to avoid key pointer confusion
const hostname_copy = try alloc.dupe(u8, entry.hostname);
errdefer alloc.free(hostname_copy);
const gop = try entries.getOrPut(hostname_copy);
if (!gop.found_existing) {
const terminfo_copy = try alloc.dupe(u8, entry.terminfo_version);
gop.value_ptr.* = CacheEntry{
.hostname = hostname_copy,
.timestamp = entry.timestamp,
.terminfo_version = terminfo_copy,
};
} else {
// Don't need the copy since entry already exists
alloc.free(hostname_copy);
// Handle duplicate entries - keep newer timestamp
if (entry.timestamp > gop.value_ptr.timestamp) {
gop.value_ptr.timestamp = entry.timestamp;
if (!std.mem.eql(u8, gop.value_ptr.terminfo_version, entry.terminfo_version)) {
alloc.free(gop.value_ptr.terminfo_version);
const terminfo_copy = try alloc.dupe(u8, entry.terminfo_version);
gop.value_ptr.terminfo_version = terminfo_copy;
}
}
}
}
}
}
/// List cached hosts by calling the external script
pub fn listCachedHosts(alloc: Allocator, writer: anytype) !void {
try runCacheCommand(alloc, writer, "list");
// Atomic write via temp file + rename, filters out expired entries
fn writeCacheFile(
alloc: Allocator,
path: []const u8,
entries: *const std.StringHashMap(CacheEntry),
expire_days: u32,
) !void {
// Ensure parent directory exists
const dir = std.fs.path.dirname(path).?;
fs.makeDirAbsolute(dir) catch |err| switch (err) {
error.PathAlreadyExists => {},
else => return err,
};
// Write to temp file first
const tmp_path = try std.fmt.allocPrint(alloc, "{s}.tmp", .{path});
defer alloc.free(tmp_path);
const tmp_file = try fs.createFileAbsolute(tmp_path, .{ .mode = 0o600 });
defer tmp_file.close();
errdefer fs.deleteFileAbsolute(tmp_path) catch {};
const writer = tmp_file.writer();
// Only write non-expired entries
var iter = entries.iterator();
while (iter.next()) |kv| {
if (!kv.value_ptr.isExpired(expire_days)) {
try kv.value_ptr.format(writer);
}
}
// Atomic replace
try fs.renameAbsolute(tmp_path, path);
}
/// Clear cache by calling the external script
pub fn clearCache(alloc: Allocator, writer: anytype) !void {
try runCacheCommand(alloc, writer, "clear");
fn checkHost(alloc: Allocator, host: []const u8) !bool {
if (!isValidCacheKey(host)) return CacheError.InvalidCacheKey;
const path = try getCachePath(alloc);
var entries = std.StringHashMap(CacheEntry).init(alloc);
try readCacheFile(alloc, path, &entries);
return entries.contains(host);
}
fn addHost(alloc: Allocator, host: []const u8) !AddResult {
if (!isValidCacheKey(host)) return CacheError.InvalidCacheKey;
const path = try getCachePath(alloc);
// Create cache directory if needed
const dir = std.fs.path.dirname(path).?;
fs.makeDirAbsolute(dir) catch |err| switch (err) {
error.PathAlreadyExists => {},
else => return err,
};
// Open or create cache file with secure permissions
const file = fs.createFileAbsolute(path, .{
.read = true,
.truncate = false,
.mode = 0o600,
}) catch |err| switch (err) {
error.PathAlreadyExists => blk: {
const existing_file = fs.openFileAbsolute(path, .{ .mode = .read_write }) catch |open_err| {
return open_err;
};
// Verify and fix permissions on existing file
const stat = existing_file.stat() catch |stat_err| {
existing_file.close();
return stat_err;
};
// Ensure file has correct permissions (readable/writable by owner only)
if (stat.mode & 0o777 != 0o600) {
existing_file.chmod(0o600) catch |chmod_err| {
existing_file.close();
return chmod_err;
};
}
break :blk existing_file;
},
else => return err,
};
defer file.close();
try acquireFileLock(file);
defer file.unlock();
var entries = std.StringHashMap(CacheEntry).init(alloc);
try readCacheFile(alloc, path, &entries);
// Add or update entry
const gop = try entries.getOrPut(host);
const result = if (!gop.found_existing) blk: {
gop.key_ptr.* = try alloc.dupe(u8, host);
gop.value_ptr.* = .{
.hostname = gop.key_ptr.*,
.timestamp = std.time.timestamp(),
.terminfo_version = "xterm-ghostty",
};
break :blk AddResult.added;
} else blk: {
// Update timestamp for existing entry
gop.value_ptr.timestamp = std.time.timestamp();
break :blk AddResult.updated;
};
try writeCacheFile(alloc, path, &entries, NEVER_EXPIRE);
return result;
}
fn removeHost(alloc: Allocator, host: []const u8) !void {
if (!isValidCacheKey(host)) return CacheError.InvalidCacheKey;
const path = try getCachePath(alloc);
const file = fs.openFileAbsolute(path, .{ .mode = .read_write }) catch |err| switch (err) {
error.FileNotFound => return,
else => return err,
};
defer file.close();
try acquireFileLock(file);
defer file.unlock();
var entries = std.StringHashMap(CacheEntry).init(alloc);
try readCacheFile(alloc, path, &entries);
_ = entries.fetchRemove(host);
try writeCacheFile(alloc, path, &entries, NEVER_EXPIRE);
}
fn listHosts(alloc: Allocator, writer: anytype) !void {
const path = try getCachePath(alloc);
var entries = std.StringHashMap(CacheEntry).init(alloc);
readCacheFile(alloc, path, &entries) catch |err| switch (err) {
error.FileNotFound => {
try writer.print("No hosts in cache.\n", .{});
return;
},
else => return err,
};
if (entries.count() == 0) {
try writer.print("No hosts in cache.\n", .{});
return;
}
// Sort entries by hostname for consistent output
var items = std.ArrayList(CacheEntry).init(alloc);
defer items.deinit();
var iter = entries.iterator();
while (iter.next()) |kv| {
try items.append(kv.value_ptr.*);
}
std.mem.sort(CacheEntry, items.items, {}, struct {
fn lessThan(_: void, a: CacheEntry, b: CacheEntry) bool {
return std.mem.lessThan(u8, a.hostname, b.hostname);
}
}.lessThan);
try writer.print("Cached hosts ({d}):\n", .{items.items.len});
const now = std.time.timestamp();
for (items.items) |entry| {
const age_days = @divTrunc(now - entry.timestamp, SECONDS_PER_DAY);
if (age_days == 0) {
try writer.print(" {s} (today)\n", .{entry.hostname});
} else if (age_days == 1) {
try writer.print(" {s} (yesterday)\n", .{entry.hostname});
} else {
try writer.print(" {s} ({d} days ago)\n", .{ entry.hostname, age_days });
}
}
}
fn clearCache(alloc: Allocator) !void {
const path = try getCachePath(alloc);
fs.deleteFileAbsolute(path) catch |err| switch (err) {
error.FileNotFound => {},
else => return err,
};
}
/// Manage the SSH terminfo cache for automatic remote host setup.
///
/// When SSH integration is enabled with `shell-integration-features = ssh-terminfo`,
/// Ghostty automatically installs its terminfo on remote hosts. This command
/// manages the cache of successful installations to avoid redundant uploads.
///
/// The cache stores hostnames (or user@hostname combinations) along with timestamps.
/// Entries older than the expiration period are automatically removed during cache
/// operations. By default, entries never expire.
///
/// Examples:
/// ghostty +ssh-cache # List all cached hosts
/// ghostty +ssh-cache --host=example.com # Check if host is cached
/// ghostty +ssh-cache --add=example.com # Manually add host to cache
/// ghostty +ssh-cache --add=user@example.com # Add user@host combination
/// ghostty +ssh-cache --remove=example.com # Remove host from cache
/// ghostty +ssh-cache --clear # Clear entire cache
/// ghostty +ssh-cache --expire-days=30 # Set custom expiration period
pub fn run(alloc_gpa: Allocator) !u8 {
var arena = std.heap.ArenaAllocator.init(alloc_gpa);
defer arena.deinit();
const alloc = arena.allocator();
var opts: Options = .{};
defer opts.deinit();
{
var iter = try args.argsIterator(alloc_gpa);
defer iter.deinit();
try args.parse(Options, alloc_gpa, &opts, &iter);
}
const stdout = std.io.getStdOut().writer();
const stderr = std.io.getStdErr().writer();
if (opts.clear) {
try clearCache(alloc);
try stdout.print("Cache cleared.\n", .{});
return 0;
}
if (opts.add) |host| {
const result = addHost(alloc, host) catch |err| switch (err) {
CacheError.InvalidCacheKey => {
try stderr.print("Error: Invalid hostname format '{s}'\n", .{host});
try stderr.print("Expected format: hostname or user@hostname\n", .{});
return 1;
},
CacheError.CacheLocked => {
try stderr.print("Error: Cache is busy, try again\n", .{});
return 1;
},
error.AccessDenied, error.PermissionDenied => {
try stderr.print("Error: Permission denied\n", .{});
return 1;
},
else => {
try stderr.print("Error: Unable to add '{s}' to cache\n", .{host});
return 1;
},
};
switch (result) {
.added => try stdout.print("Added '{s}' to cache.\n", .{host}),
.updated => try stdout.print("Updated '{s}' cache entry.\n", .{host}),
}
return 0;
}
if (opts.remove) |host| {
removeHost(alloc, host) catch |err| switch (err) {
CacheError.InvalidCacheKey => {
try stderr.print("Error: Invalid hostname format '{s}'\n", .{host});
try stderr.print("Expected format: hostname or user@hostname\n", .{});
return 1;
},
CacheError.CacheLocked => {
try stderr.print("Error: Cache is busy, try again\n", .{});
return 1;
},
error.AccessDenied, error.PermissionDenied => {
try stderr.print("Error: Permission denied\n", .{});
return 1;
},
else => {
try stderr.print("Error: Unable to remove '{s}' from cache\n", .{host});
return 1;
},
};
try stdout.print("Removed '{s}' from cache.\n", .{host});
return 0;
}
if (opts.host) |host| {
const cached = checkHost(alloc, host) catch |err| switch (err) {
CacheError.InvalidCacheKey => {
try stderr.print("Error: Invalid hostname format '{s}'\n", .{host});
try stderr.print("Expected format: hostname or user@hostname\n", .{});
return 1;
},
error.AccessDenied, error.PermissionDenied => {
try stderr.print("Error: Permission denied\n", .{});
return 1;
},
else => {
try stderr.print("Error: Unable to check host '{s}' in cache\n", .{host});
return 1;
},
};
if (cached) {
try stdout.print("'{s}' has Ghostty terminfo installed.\n", .{host});
return 0;
} else {
try stdout.print("'{s}' does not have Ghostty terminfo installed.\n", .{host});
return 1;
}
}
// Default action: list all hosts
try listHosts(alloc, stdout);
return 0;
}
// Tests
test "hostname validation - valid cases" {
const testing = std.testing;
try testing.expect(isValidHostname("example.com"));
try testing.expect(isValidHostname("sub.example.com"));
try testing.expect(isValidHostname("host-name.domain.org"));
try testing.expect(isValidHostname("192.168.1.1"));
try testing.expect(isValidHostname("a"));
try testing.expect(isValidHostname("1"));
}
test "hostname validation - IPv6 addresses" {
const testing = std.testing;
try testing.expect(isValidHostname("[::1]"));
try testing.expect(isValidHostname("[2001:db8::1]"));
try testing.expect(isValidHostname("[fe80::1%eth0]") == false); // Interface notation not supported
try testing.expect(isValidHostname("[]") == false); // Empty IPv6
try testing.expect(isValidHostname("[invalid]") == false); // No colons
}
test "hostname validation - invalid cases" {
const testing = std.testing;
try testing.expect(!isValidHostname(""));
try testing.expect(!isValidHostname("host\nname"));
try testing.expect(!isValidHostname(".example.com"));
try testing.expect(!isValidHostname("example.com."));
try testing.expect(!isValidHostname("host..domain"));
try testing.expect(!isValidHostname("-hostname"));
try testing.expect(!isValidHostname("hostname-"));
try testing.expect(!isValidHostname("host name"));
try testing.expect(!isValidHostname("host_name"));
try testing.expect(!isValidHostname("host@domain"));
try testing.expect(!isValidHostname("host:port"));
// Too long
const long_host = "a" ** 254;
try testing.expect(!isValidHostname(long_host));
}
test "user validation - valid cases" {
const testing = std.testing;
try testing.expect(isValidUser("user"));
try testing.expect(isValidUser("deploy"));
try testing.expect(isValidUser("test-user"));
try testing.expect(isValidUser("user_name"));
try testing.expect(isValidUser("user.name"));
try testing.expect(isValidUser("user123"));
try testing.expect(isValidUser("a"));
}
test "user validation - complex realistic cases" {
const testing = std.testing;
try testing.expect(isValidUser("git"));
try testing.expect(isValidUser("ubuntu"));
try testing.expect(isValidUser("root"));
try testing.expect(isValidUser("service.account"));
try testing.expect(isValidUser("user-with-dashes"));
}
test "user validation - invalid cases" {
const testing = std.testing;
try testing.expect(!isValidUser(""));
try testing.expect(!isValidUser("user name"));
try testing.expect(!isValidUser("user@domain"));
try testing.expect(!isValidUser("user:group"));
try testing.expect(!isValidUser("user\nname"));
// Too long
const long_user = "a" ** 65;
try testing.expect(!isValidUser(long_user));
}
test "cache key validation - hostname format" {
const testing = std.testing;
try testing.expect(isValidCacheKey("example.com"));
try testing.expect(isValidCacheKey("sub.example.com"));
try testing.expect(isValidCacheKey("192.168.1.1"));
try testing.expect(isValidCacheKey("[::1]"));
try testing.expect(!isValidCacheKey(""));
try testing.expect(!isValidCacheKey(".invalid.com"));
}
test "cache key validation - user@hostname format" {
const testing = std.testing;
try testing.expect(isValidCacheKey("user@example.com"));
try testing.expect(isValidCacheKey("deploy@prod.server.com"));
try testing.expect(isValidCacheKey("test-user@192.168.1.1"));
try testing.expect(isValidCacheKey("user_name@host.domain.org"));
try testing.expect(isValidCacheKey("git@github.com"));
try testing.expect(isValidCacheKey("ubuntu@[::1]"));
try testing.expect(!isValidCacheKey("@example.com"));
try testing.expect(!isValidCacheKey("user@"));
try testing.expect(!isValidCacheKey("user@@host"));
try testing.expect(!isValidCacheKey("user@.invalid.com"));
}
test "cache entry expiration" {
const testing = std.testing;
const now = std.time.timestamp();
const fresh_entry = CacheEntry{
.hostname = "test.com",
.timestamp = now - SECONDS_PER_DAY, // 1 day old
.terminfo_version = "xterm-ghostty",
};
try testing.expect(!fresh_entry.isExpired(90));
const old_entry = CacheEntry{
.hostname = "old.com",
.timestamp = now - (SECONDS_PER_DAY * 100), // 100 days old
.terminfo_version = "xterm-ghostty",
};
try testing.expect(old_entry.isExpired(90));
// Test never-expire case
try testing.expect(!old_entry.isExpired(NEVER_EXPIRE));
}
test "cache entry expiration - boundary cases" {
const testing = std.testing;
const now = std.time.timestamp();
// Exactly at expiration boundary
const boundary_entry = CacheEntry{
.hostname = "boundary.com",
.timestamp = now - (SECONDS_PER_DAY * 30), // Exactly 30 days old
.terminfo_version = "xterm-ghostty",
};
try testing.expect(!boundary_entry.isExpired(30)); // Should not be expired
try testing.expect(boundary_entry.isExpired(29)); // Should be expired
}
test "cache entry parsing - valid formats" {
const testing = std.testing;
const entry = CacheEntry.parse("example.com|1640995200|xterm-ghostty").?;
try testing.expectEqualStrings("example.com", entry.hostname);
try testing.expectEqual(@as(i64, 1640995200), entry.timestamp);
try testing.expectEqualStrings("xterm-ghostty", entry.terminfo_version);
// Test default terminfo version
const entry_no_version = CacheEntry.parse("test.com|1640995200").?;
try testing.expectEqualStrings("xterm-ghostty", entry_no_version.terminfo_version);
// Test complex hostnames
const complex_entry = CacheEntry.parse("user@server.example.com|1640995200|xterm-ghostty").?;
try testing.expectEqualStrings("user@server.example.com", complex_entry.hostname);
}
test "cache entry parsing - invalid formats" {
const testing = std.testing;
try testing.expect(CacheEntry.parse("") == null);
try testing.expect(CacheEntry.parse("v1") == null); // Invalid format (no pipe)
try testing.expect(CacheEntry.parse("example.com") == null); // Missing timestamp
try testing.expect(CacheEntry.parse("example.com|invalid") == null); // Invalid timestamp
try testing.expect(CacheEntry.parse("example.com|1640995200|") != null); // Empty terminfo should default
}
test "cache entry parsing - malformed data resilience" {
const testing = std.testing;
// Extra pipes should not break parsing
try testing.expect(CacheEntry.parse("host|123|term|extra") != null);
// Whitespace handling
try testing.expect(CacheEntry.parse(" host|123|term ") != null);
try testing.expect(CacheEntry.parse("\n") == null);
try testing.expect(CacheEntry.parse(" \t \n") == null);
}
test "duplicate cache entries - memory management" {
const testing = std.testing;
var arena = std.heap.ArenaAllocator.init(testing.allocator);
defer arena.deinit();
const alloc = arena.allocator();
var entries = std.StringHashMap(CacheEntry).init(alloc);
defer entries.deinit();
// Simulate reading a cache file with duplicate hostnames
const cache_content = "example.com|1640995200|xterm-ghostty\nexample.com|1640995300|xterm-ghostty-v2\n";
var lines = std.mem.tokenizeScalar(u8, cache_content, '\n');
while (lines.next()) |line| {
const trimmed = std.mem.trim(u8, line, " \t\r");
if (CacheEntry.parse(trimmed)) |entry| {
const gop = try entries.getOrPut(entry.hostname);
if (!gop.found_existing) {
const hostname_copy = try alloc.dupe(u8, entry.hostname);
const terminfo_copy = try alloc.dupe(u8, entry.terminfo_version);
gop.key_ptr.* = hostname_copy;
gop.value_ptr.* = CacheEntry{
.hostname = hostname_copy,
.timestamp = entry.timestamp,
.terminfo_version = terminfo_copy,
};
} else {
// Test the duplicate handling logic
if (entry.timestamp > gop.value_ptr.timestamp) {
gop.value_ptr.timestamp = entry.timestamp;
if (!std.mem.eql(u8, gop.value_ptr.terminfo_version, entry.terminfo_version)) {
alloc.free(gop.value_ptr.terminfo_version);
const terminfo_copy = try alloc.dupe(u8, entry.terminfo_version);
gop.value_ptr.terminfo_version = terminfo_copy;
}
}
}
}
}
// Verify only one entry exists with the newer timestamp
try testing.expect(entries.count() == 1);
const entry = entries.get("example.com").?;
try testing.expectEqual(@as(i64, 1640995300), entry.timestamp);
try testing.expectEqualStrings("xterm-ghostty-v2", entry.terminfo_version);
}
test "concurrent access simulation - file locking" {
const testing = std.testing;
// This test simulates the file locking mechanism
// In practice, this would require actual file operations
// but we can test the error handling logic
const TestError = error{CacheLocked};
const result = TestError.CacheLocked;
try testing.expectError(TestError.CacheLocked, result);
}

View File

@ -97,73 +97,172 @@ fi
# SSH Integration
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-(env|terminfo) ]]; then
: "${GHOSTTY_SSH_CACHE_TIMEOUT:=5}"
: "${GHOSTTY_SSH_CHECK_TIMEOUT:=3}"
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
readonly _CACHE="${GHOSTTY_RESOURCES_DIR}/shell-integration/shared/ghostty-ssh-cache"
# SSH wrapper that preserves Ghostty features across remote connections
ssh() {
local ssh_env=() ssh_opts=()
# Configure environment variables for remote session
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local -a ssh_env_vars=(
"COLORTERM=truecolor"
"TERM_PROGRAM=ghostty"
)
if [[ -n "$TERM_PROGRAM_VERSION" ]]; then
ssh_env_vars+=("TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION")
fi
# SSH wrapper
ssh() {
local env=() opts=() ctrl=()
# Temporarily export variables for SSH transmission
local -a ssh_exported_vars=()
for ssh_v in "${ssh_env_vars[@]}"; do
local ssh_var_name="${ssh_v%%=*}"
# Set up env vars first so terminfo installation inherits them
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local vars=(
COLORTERM=truecolor
TERM_PROGRAM=ghostty
${TERM_PROGRAM_VERSION:+TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION}
if [[ -n "${!ssh_var_name+x}" ]]; then
ssh_exported_vars+=("$ssh_var_name=${!ssh_var_name}")
else
ssh_exported_vars+=("$ssh_var_name")
fi
builtin export "${ssh_v?}"
# Use both SendEnv and SetEnv for maximum compatibility
ssh_opts+=(-o "SendEnv $ssh_var_name")
ssh_opts+=(-o "SetEnv $ssh_v")
done
ssh_env+=("${ssh_env_vars[@]}")
fi
# Install terminfo on remote host if needed
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
builtin local ssh_config ssh_user ssh_hostname
ssh_config=$(builtin command ssh -G "$@" 2>/dev/null)
ssh_user=$(echo "$ssh_config" | while IFS=' ' read -r ssh_key ssh_value; do
[[ "$ssh_key" == "ssh_user" ]] && echo "$ssh_value" && break
done)
ssh_hostname=$(echo "$ssh_config" | while IFS=' ' read -r ssh_key ssh_value; do
[[ "$ssh_key" == "hostname" ]] && echo "$ssh_value" && break
done)
ssh_target="${ssh_user}@${ssh_hostname}"
if [[ -n "$ssh_hostname" ]]; then
# Detect timeout command (BSD compatibility)
local ssh_timeout_cmd=""
if command -v timeout >/dev/null 2>&1; then
ssh_timeout_cmd="timeout"
elif command -v gtimeout >/dev/null 2>&1; then
ssh_timeout_cmd="gtimeout"
fi
# Check if terminfo is already cached
local ssh_cache_check_success=false
if command -v ghostty >/dev/null 2>&1; then
if [[ -n "$ssh_timeout_cmd" ]]; then
$ssh_timeout_cmd "${GHOSTTY_SSH_CHECK_TIMEOUT}s" ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1 && ssh_cache_check_success=true
else
ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1 && ssh_cache_check_success=true
fi
fi
if [[ "$ssh_cache_check_success" == "true" ]]; then
ssh_env+=(TERM=xterm-ghostty)
elif builtin command -v infocmp >/dev/null 2>&1; then
builtin local ssh_terminfo
# Generate terminfo data (BSD base64 compatibility)
if base64 --help 2>&1 | grep -q GNU; then
ssh_terminfo=$(infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 -w0 2>/dev/null)
else
ssh_terminfo=$(infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 2>/dev/null | tr -d '\n')
fi
if [[ -n "$ssh_terminfo" ]]; then
builtin echo "Setting up Ghostty terminfo on remote host..." >&2
builtin local ssh_cpath_dir ssh_cpath
ssh_cpath_dir=$(mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null) || ssh_cpath_dir="/tmp/ghostty-ssh-$ssh_user.$$"
ssh_cpath="$ssh_cpath_dir/socket"
local ssh_base64_decode_cmd
if base64 --help 2>&1 | grep -q GNU; then
ssh_base64_decode_cmd="base64 -d"
else
ssh_base64_decode_cmd="base64 -D"
fi
if builtin echo "$ssh_terminfo" | $ssh_base64_decode_cmd | builtin command ssh "${ssh_opts[@]}" -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null; then
builtin echo "Terminfo setup complete." >&2
ssh_env+=(TERM=xterm-ghostty)
ssh_opts+=(-o "ControlPath=$ssh_cpath")
# Cache successful installation
if [[ -n "$ssh_target" ]] && command -v ghostty >/dev/null 2>&1; then
(
set +m
{
if [[ -n "$ssh_timeout_cmd" ]]; then
$ssh_timeout_cmd "${GHOSTTY_SSH_CACHE_TIMEOUT}s" ghostty +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
else
ghostty +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
fi
} &
)
for v in "${vars[@]}"; do
builtin export "${v?}"
opts+=(-o "SendEnv ${v%=*}" -o "SetEnv $v")
fi
else
builtin echo "Warning: Failed to install terminfo." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
builtin echo "Warning: Could not generate terminfo data." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
builtin echo "Warning: ghostty command not available for cache management." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
ssh_env+=(TERM=xterm-256color)
fi
fi
fi
# Ensure TERM is set when using ssh-env feature
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local ssh_term_set=false
for ssh_v in "${ssh_env[@]}"; do
if [[ "$ssh_v" =~ ^TERM= ]]; then
ssh_term_set=true
break
fi
done
if [[ "$ssh_term_set" == "false" && "$TERM" == "xterm-ghostty" ]]; then
ssh_env+=(TERM=xterm-256color)
fi
fi
builtin command ssh "${ssh_opts[@]}" "$@"
local ssh_ret=$?
# Restore original environment variables
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
for ssh_v in "${ssh_exported_vars[@]}"; do
if [[ "$ssh_v" == *=* ]]; then
builtin export "${ssh_v?}"
else
builtin unset "${ssh_v}"
fi
done
fi
# Install terminfo if needed, reuse control connection for main session
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
# Get target (only when needed for terminfo)
builtin local target
target=$(builtin command ssh -G "$@" 2>/dev/null | awk '/^(user|hostname) /{print $2}' | paste -sd'@')
if [[ -n "$target" ]] && "$_CACHE" chk "$target"; then
env+=(TERM=xterm-ghostty)
elif builtin command -v infocmp >/dev/null 2>&1; then
builtin local tinfo
tinfo=$(infocmp -x xterm-ghostty 2>/dev/null) || builtin echo "Warning: xterm-ghostty terminfo not found locally." >&2
if [[ -n "$tinfo" ]]; then
builtin echo "Setting up Ghostty terminfo on remote host..." >&2
builtin local cpath
cpath="/tmp/ghostty-ssh-$USER-$RANDOM-$(date +%s)"
case $(builtin echo "$tinfo" | builtin command ssh "${opts[@]}" -o ControlMaster=yes -o ControlPath="$cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && echo OK && exit
command -v tic >/dev/null 2>&1 || { echo NO_TIC; exit 1; }
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && echo OK || echo FAIL
') in
OK)
builtin echo "Terminfo setup complete." >&2
[[ -n "$target" ]] && "$_CACHE" add "$target"
env+=(TERM=xterm-ghostty)
ctrl+=(-o "ControlPath=$cpath")
;;
*) builtin echo "Warning: Failed to install terminfo." >&2 ;;
esac
fi
else
builtin echo "Warning: infocmp not found locally. Terminfo installation unavailable." >&2
fi
fi
# Fallback TERM only if terminfo didn't set it
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
[[ $TERM == xterm-ghostty && ! " ${env[*]} " =~ " TERM=" ]] && env+=(TERM=xterm-256color)
fi
# Execute
if [[ ${#env[@]} -gt 0 ]]; then
env "${env[@]}" ssh "${opts[@]}" "${ctrl[@]}" "$@"
else
builtin command ssh "${opts[@]}" "${ctrl[@]}" "$@"
fi
return $ssh_ret
}
fi

View File

@ -100,89 +100,236 @@
# SSH Integration
use str
use re
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) or (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-terminfo) {
if (or (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-terminfo)) {
var GHOSTTY_SSH_CACHE_TIMEOUT = (if (has-env GHOSTTY_SSH_CACHE_TIMEOUT) { echo $E:GHOSTTY_SSH_CACHE_TIMEOUT } else { echo 5 })
var GHOSTTY_SSH_CHECK_TIMEOUT = (if (has-env GHOSTTY_SSH_CHECK_TIMEOUT) { echo $E:GHOSTTY_SSH_CHECK_TIMEOUT } else { echo 3 })
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-terminfo) {
var _CACHE = $E:GHOSTTY_RESOURCES_DIR/shell-integration/shared/ghostty-ssh-cache
}
# SSH wrapper
# SSH wrapper that preserves Ghostty features across remote connections
fn ssh {|@args|
var env = []
var opts = []
var ctrl = []
var ssh-env = []
var ssh-opts = []
# Set up env vars first so terminfo installation inherits them
# Configure environment variables for remote session
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) {
var vars = [
var ssh-env-vars = [
COLORTERM=truecolor
TERM_PROGRAM=ghostty
]
if (not-eq $E:TERM_PROGRAM_VERSION '') {
set vars = [$@vars TERM_PROGRAM_VERSION=$E:TERM_PROGRAM_VERSION]
if (has-env TERM_PROGRAM_VERSION) {
set ssh-env-vars = [$@ssh-env-vars TERM_PROGRAM_VERSION=$E:TERM_PROGRAM_VERSION]
}
for v $vars {
set-env (str:split = $v | take 1) (str:split = $v | drop 1 | str:join =)
var varname = (str:split = $v | take 1)
set opts = [$@opts -o 'SendEnv '$varname -o 'SetEnv '$v]
}
# Store original values for restoration
var ssh-exported-vars = []
for ssh-v $ssh-env-vars {
var ssh-var-name = (str:split &max=2 = $ssh-v)[0]
if (has-env $ssh-var-name) {
var original-value = (get-env $ssh-var-name)
set ssh-exported-vars = [$@ssh-exported-vars $ssh-var-name=$original-value]
} else {
set ssh-exported-vars = [$@ssh-exported-vars $ssh-var-name]
}
# Install terminfo if needed, reuse control connection for main session
# Export the variable
var ssh-var-parts = (str:split &max=2 = $ssh-v)
set-env $ssh-var-parts[0] $ssh-var-parts[1]
# Use both SendEnv and SetEnv for maximum compatibility
set ssh-opts = [$@ssh-opts -o "SendEnv "$ssh-var-name]
set ssh-opts = [$@ssh-opts -o "SetEnv "$ssh-v]
}
set ssh-env = [$@ssh-env $@ssh-env-vars]
}
# Install terminfo on remote host if needed
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-terminfo) {
# Get target
var target = ''
var ssh-config = ""
try {
set target = (e:ssh -G $@args 2>/dev/null | e:awk '/^(user|hostname) /{print $2}' | e:paste -sd'@')
} catch { }
if (and (not-eq $target '') ($_CACHE chk $target)) {
set env = [$@env TERM=xterm-ghostty]
} elif (has-external infocmp) {
var tinfo = ''
try {
set tinfo = (e:infocmp -x xterm-ghostty 2>/dev/null)
set ssh-config = (external ssh -G $@args 2>/dev/null | slurp)
} catch {
echo "Warning: xterm-ghostty terminfo not found locally." >&2
set ssh-config = ""
}
if (not-eq $tinfo '') {
echo "Setting up Ghostty terminfo on remote host..." >&2
var cpath = '/tmp/ghostty-ssh-'$E:USER'-'(randint 0 32767)'-'(date +%s)
var result = (echo $tinfo | e:ssh $@opts -o ControlMaster=yes -o ControlPath=$cpath -o ControlPersist=60s $@args '
infocmp xterm-ghostty >/dev/null 2>&1 && echo OK && exit
command -v tic >/dev/null 2>&1 || { echo NO_TIC; exit 1; }
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && echo OK || echo FAIL
')
var ssh-user = ""
var ssh-hostname = ""
if (eq $result OK) {
for line (str:split "\n" $ssh-config) {
var parts = (str:split " " $line)
if (and (> (count $parts) 1) (eq $parts[0] user)) {
set ssh-user = $parts[1]
}
if (and (> (count $parts) 1) (eq $parts[0] hostname)) {
set ssh-hostname = $parts[1]
}
}
var ssh-target = $ssh-user"@"$ssh-hostname
if (not-eq $ssh-hostname "") {
# Detect timeout command (BSD compatibility)
var ssh-timeout-cmd = ""
try {
external timeout --help >/dev/null 2>&1
set ssh-timeout-cmd = timeout
} catch {
try {
external gtimeout --help >/dev/null 2>&1
set ssh-timeout-cmd = gtimeout
} catch {
# no timeout command available
}
}
# Check if terminfo is already cached
var ssh-cache-check-success = $false
try {
external ghostty --help >/dev/null 2>&1
if (not-eq $ssh-timeout-cmd "") {
try {
external $ssh-timeout-cmd $GHOSTTY_SSH_CHECK_TIMEOUT"s" ghostty +ssh-cache --host=$ssh-target >/dev/null 2>&1
set ssh-cache-check-success = $true
} catch {
# cache check failed
}
} else {
try {
external ghostty +ssh-cache --host=$ssh-target >/dev/null 2>&1
set ssh-cache-check-success = $true
} catch {
# cache check failed
}
}
} catch {
# ghostty not available
}
if $ssh-cache-check-success {
set ssh-env = [$@ssh-env TERM=xterm-ghostty]
} else {
try {
external infocmp --help >/dev/null 2>&1
# Generate terminfo data (BSD base64 compatibility)
var ssh-terminfo = ""
try {
var base64-help = (external base64 --help 2>&1 | slurp)
if (str:contains $base64-help GNU) {
set ssh-terminfo = (external infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | external base64 -w0 2>/dev/null | slurp)
} else {
set ssh-terminfo = (external infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | external base64 2>/dev/null | external tr -d '\n' | slurp)
}
} catch {
set ssh-terminfo = ""
}
if (not-eq $ssh-terminfo "") {
echo "Setting up Ghostty terminfo on remote host..." >&2
var ssh-cpath-dir = ""
try {
set ssh-cpath-dir = (external mktemp -d "/tmp/ghostty-ssh-"$ssh-user".XXXXXX" 2>/dev/null | slurp)
} catch {
set ssh-cpath-dir = "/tmp/ghostty-ssh-"$ssh-user"."(randint 10000 99999)
}
var ssh-cpath = $ssh-cpath-dir"/socket"
var ssh-base64-decode-cmd = ""
try {
var base64-help = (external base64 --help 2>&1 | slurp)
if (str:contains $base64-help GNU) {
set ssh-base64-decode-cmd = "base64 -d"
} else {
set ssh-base64-decode-cmd = "base64 -D"
}
} catch {
set ssh-base64-decode-cmd = "base64 -d"
}
var terminfo-install-success = $false
try {
echo $ssh-terminfo | external sh -c $ssh-base64-decode-cmd | external ssh $@ssh-opts -o ControlMaster=yes -o ControlPath=$ssh-cpath -o ControlPersist=60s $@args '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' >/dev/null 2>&1
set terminfo-install-success = $true
} catch {
set terminfo-install-success = $false
}
if $terminfo-install-success {
echo "Terminfo setup complete." >&2
if (not-eq $target '') { $_CACHE add $target }
set env = [$@env TERM=xterm-ghostty]
set ctrl = [$@ctrl -o ControlPath=$cpath]
set ssh-env = [$@ssh-env TERM=xterm-ghostty]
set ssh-opts = [$@ssh-opts -o ControlPath=$ssh-cpath]
# Cache successful installation
if (and (not-eq $ssh-target "") (has-external ghostty)) {
if (not-eq $ssh-timeout-cmd "") {
external $ssh-timeout-cmd $GHOSTTY_SSH_CACHE_TIMEOUT"s" ghostty +ssh-cache --add=$ssh-target >/dev/null 2>&1 &
} else {
external ghostty +ssh-cache --add=$ssh-target >/dev/null 2>&1 &
}
}
} else {
echo "Warning: Failed to install terminfo." >&2
set ssh-env = [$@ssh-env TERM=xterm-256color]
}
} else {
echo "Warning: Could not generate terminfo data." >&2
set ssh-env = [$@ssh-env TERM=xterm-256color]
}
} catch {
echo "Warning: ghostty command not available for cache management." >&2
set ssh-env = [$@ssh-env TERM=xterm-256color]
}
}
} else {
echo "Warning: infocmp not found locally. Terminfo installation unavailable." >&2
}
}
# Fallback TERM only if terminfo didn't set it
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) {
if (and (eq $E:TERM xterm-ghostty) (not (str:contains (str:join ' ' $env) 'TERM='))) {
set env = [$@env TERM=xterm-256color]
set ssh-env = [$@ssh-env TERM=xterm-256color]
}
}
}
# Execute
if (> (count $env) 0) {
e:env $@env e:ssh $@opts $@ctrl $@args
# Ensure TERM is set when using ssh-env feature
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) {
var ssh-term-set = $false
for ssh-v $ssh-env {
if (str:has-prefix $ssh-v TERM=) {
set ssh-term-set = $true
break
}
}
if (and (not $ssh-term-set) (eq $E:TERM xterm-ghostty)) {
set ssh-env = [$@ssh-env TERM=xterm-256color]
}
}
var ssh-ret = 0
try {
external ssh $@ssh-opts $@args
} catch e {
set ssh-ret = $e[reason][exit-status]
}
# Restore original environment variables
if (str:contains $E:GHOSTTY_SHELL_FEATURES ssh-env) {
for ssh-v $ssh-exported-vars {
if (str:contains $ssh-v =) {
var ssh-var-parts = (str:split &max=2 = $ssh-v)
set-env $ssh-var-parts[0] $ssh-var-parts[1]
} else {
e:ssh $@opts $@ctrl $@args
unset-env $ssh-v
}
}
}
if (not-eq $ssh-ret 0) {
fail ssh-failed
}
}
}

View File

@ -86,91 +86,176 @@ function __ghostty_setup --on-event fish_prompt -d "Setup ghostty integration"
end
end
# SSH Integration
if string match -qr 'ssh-(env|terminfo)' $GHOSTTY_SHELL_FEATURES
# SSH Integration for Fish Shell
if string match -q '*ssh-env*' -- "$GHOSTTY_SHELL_FEATURES"; or string match -q '*ssh-terminfo*' -- "$GHOSTTY_SHELL_FEATURES"
set -g GHOSTTY_SSH_CACHE_TIMEOUT (test -n "$GHOSTTY_SSH_CACHE_TIMEOUT"; and echo $GHOSTTY_SSH_CACHE_TIMEOUT; or echo 5)
set -g GHOSTTY_SSH_CHECK_TIMEOUT (test -n "$GHOSTTY_SSH_CHECK_TIMEOUT"; and echo $GHOSTTY_SSH_CHECK_TIMEOUT; or echo 3)
if string match -q '*ssh-terminfo*' $GHOSTTY_SHELL_FEATURES
set -g _CACHE "$GHOSTTY_RESOURCES_DIR/shell-integration/shared/ghostty-ssh-cache"
end
# SSH wrapper that preserves Ghostty features across remote connections
function ssh --wraps=ssh --description "SSH wrapper with Ghostty integration"
set -l ssh_env
set -l ssh_opts
# SSH wrapper
function ssh
set -l env
set -l opts
set -l ctrl
# Set up env vars first so terminfo installation inherits them
if string match -q '*ssh-env*' $GHOSTTY_SHELL_FEATURES
set -l vars \
COLORTERM=truecolor \
TERM_PROGRAM=ghostty
# Configure environment variables for remote session
if string match -q '*ssh-env*' -- "$GHOSTTY_SHELL_FEATURES"
set -l ssh_env_vars \
"COLORTERM=truecolor" \
"TERM_PROGRAM=ghostty"
if test -n "$TERM_PROGRAM_VERSION"
set -a vars "TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION"
set -a ssh_env_vars "TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION"
end
for v in $vars
set -l parts (string split = $v)
set -gx $parts[1] $parts[2]
set -a opts -o "SendEnv $parts[1]" -o "SetEnv $v"
# Store original values for restoration
set -l ssh_exported_vars
for ssh_v in $ssh_env_vars
set -l ssh_var_name (string split -m1 '=' -- $ssh_v)[1]
if set -q $ssh_var_name
set -a ssh_exported_vars "$ssh_var_name="(eval echo \$$ssh_var_name)
else
set -a ssh_exported_vars $ssh_var_name
end
# Export the variable
set -gx (string split -m1 '=' -- $ssh_v)
# Use both SendEnv and SetEnv for maximum compatibility
set -a ssh_opts -o "SendEnv $ssh_var_name"
set -a ssh_opts -o "SetEnv $ssh_v"
end
set -a ssh_env $ssh_env_vars
end
# Install terminfo on remote host if needed
if string match -q '*ssh-terminfo*' -- "$GHOSTTY_SHELL_FEATURES"
set -l ssh_config (command ssh -G $argv 2>/dev/null)
set -l ssh_user (echo $ssh_config | while read -l ssh_key ssh_value
test "$ssh_key" = "user"; and echo $ssh_value; and break
end)
set -l ssh_hostname (echo $ssh_config | while read -l ssh_key ssh_value
test "$ssh_key" = "hostname"; and echo $ssh_value; and break
end)
set -l ssh_target "$ssh_user@$ssh_hostname"
if test -n "$ssh_hostname"
# Detect timeout command (BSD compatibility)
set -l ssh_timeout_cmd
if command -v timeout >/dev/null 2>&1
set ssh_timeout_cmd timeout
else if command -v gtimeout >/dev/null 2>&1
set ssh_timeout_cmd gtimeout
end
# Check if terminfo is already cached
set -l ssh_cache_check_success false
if command -v ghostty >/dev/null 2>&1
if test -n "$ssh_timeout_cmd"
if $ssh_timeout_cmd "$GHOSTTY_SSH_CHECK_TIMEOUT"s ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1
set ssh_cache_check_success true
end
else
if ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1
set ssh_cache_check_success true
end
end
end
# Install terminfo if needed, reuse control connection for main session
if string match -q '*ssh-terminfo*' $GHOSTTY_SHELL_FEATURES
# Get target
set -l target (command ssh -G $argv 2>/dev/null | awk '/^(user|hostname) /{print $2}' | paste -sd'@')
if test -n "$target" -a ("$_CACHE" chk "$target")
set -a env TERM=xterm-ghostty
if test "$ssh_cache_check_success" = "true"
set -a ssh_env TERM=xterm-ghostty
else if command -v infocmp >/dev/null 2>&1
set -l tinfo (infocmp -x xterm-ghostty 2>/dev/null)
set -l status_code $status
if test $status_code -ne 0
echo "Warning: xterm-ghostty terminfo not found locally." >&2
# Generate terminfo data (BSD base64 compatibility)
set -l ssh_terminfo
if base64 --help 2>&1 | grep -q GNU
set ssh_terminfo (infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 -w0 2>/dev/null)
else
set ssh_terminfo (infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 2>/dev/null | tr -d '\n')
end
if test -n "$tinfo"
if test -n "$ssh_terminfo"
echo "Setting up Ghostty terminfo on remote host..." >&2
set -l cpath "/tmp/ghostty-ssh-$USER-"(random)"-"(date +%s)
set -l result (echo "$tinfo" | command ssh $opts -o ControlMaster=yes -o ControlPath="$cpath" -o ControlPersist=60s $argv '
infocmp xterm-ghostty >/dev/null 2>&1 && echo OK && exit
command -v tic >/dev/null 2>&1 || { echo NO_TIC; exit 1; }
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && echo OK || echo FAIL
')
set -l ssh_cpath_dir (mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null; or echo "/tmp/ghostty-ssh-$ssh_user."(random))
set -l ssh_cpath "$ssh_cpath_dir/socket"
switch $result
case OK
set -l ssh_base64_decode_cmd
if base64 --help 2>&1 | grep -q GNU
set ssh_base64_decode_cmd "base64 -d"
else
set ssh_base64_decode_cmd "base64 -D"
end
if echo "$ssh_terminfo" | eval $ssh_base64_decode_cmd | command ssh $ssh_opts -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s $argv '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null
echo "Terminfo setup complete." >&2
test -n "$target" && "$_CACHE" add "$target"
set -a env TERM=xterm-ghostty
set -a ctrl -o "ControlPath=$cpath"
case '*'
set -a ssh_env TERM=xterm-ghostty
set -a ssh_opts -o "ControlPath=$ssh_cpath"
# Cache successful installation
if test -n "$ssh_target"; and command -v ghostty >/dev/null 2>&1
fish -c "
if test -n '$ssh_timeout_cmd'
$ssh_timeout_cmd '$GHOSTTY_SSH_CACHE_TIMEOUT's ghostty +ssh-cache --add='$ssh_target' >/dev/null 2>&1; or true
else
ghostty +ssh-cache --add='$ssh_target' >/dev/null 2>&1; or true
end
" &
end
else
echo "Warning: Failed to install terminfo." >&2
end
set -a ssh_env TERM=xterm-256color
end
else
echo "Warning: infocmp not found locally. Terminfo installation unavailable." >&2
echo "Warning: Could not generate terminfo data." >&2
set -a ssh_env TERM=xterm-256color
end
else
echo "Warning: ghostty command not available for cache management." >&2
set -a ssh_env TERM=xterm-256color
end
else
if string match -q '*ssh-env*' -- "$GHOSTTY_SHELL_FEATURES"
set -a ssh_env TERM=xterm-256color
end
end
end
# Fallback TERM only if terminfo didn't set it
if string match -q '*ssh-env*' $GHOSTTY_SHELL_FEATURES
if test "$TERM" = xterm-ghostty -a ! (string join ' ' $env | string match -q '*TERM=*')
set -a env TERM=xterm-256color
# Ensure TERM is set when using ssh-env feature
if string match -q '*ssh-env*' -- "$GHOSTTY_SHELL_FEATURES"
set -l ssh_term_set false
for ssh_v in $ssh_env
if string match -q 'TERM=*' -- $ssh_v
set ssh_term_set true
break
end
end
if test "$ssh_term_set" = "false"; and test "$TERM" = "xterm-ghostty"
set -a ssh_env TERM=xterm-256color
end
end
# Execute
if test (count $env) -gt 0
env $env command ssh $opts $ctrl $argv
command ssh $ssh_opts $argv
set -l ssh_ret $status
# Restore original environment variables
if string match -q '*ssh-env*' -- "$GHOSTTY_SHELL_FEATURES"
for ssh_v in $ssh_exported_vars
if string match -q '*=*' -- $ssh_v
set -gx (string split -m1 '=' -- $ssh_v)
else
command ssh $opts $ctrl $argv
set -e $ssh_v
end
end
end
return $ssh_ret
end
end
# Setup prompt marking
function __ghostty_mark_prompt_start --on-event fish_prompt --on-event fish_cancel --on-event fish_posterror
# If we never got the output end event, then we need to send it now.

View File

@ -1,11 +0,0 @@
#!/usr/bin/env bash
# Minimal Ghostty SSH terminfo host cache
readonly CACHE_FILE="${XDG_STATE_HOME:-$HOME/.local/state}/ghostty/terminfo_hosts"
case "${1:-}" in
chk) [[ -f "$CACHE_FILE" ]] && grep -qFx "$2" "$CACHE_FILE" 2>/dev/null ;;
add) mkdir -p "${CACHE_FILE%/*}"; { [[ -f "$CACHE_FILE" ]] && cat "$CACHE_FILE"; echo "$2"; } | sort -u > "$CACHE_FILE.tmp" && mv "$CACHE_FILE.tmp" "$CACHE_FILE" && chmod 600 "$CACHE_FILE" ;;
list) [[ -s "$CACHE_FILE" ]] && echo "Hosts with Ghostty terminfo installed:" && cat "$CACHE_FILE" || echo "No cached hosts found." ;;
clear) rm -f "$CACHE_FILE" 2>/dev/null && echo "Ghostty SSH terminfo cache cleared." || echo "No Ghostty SSH terminfo cache found." ;;
esac

View File

@ -245,78 +245,166 @@ _ghostty_deferred_init() {
fi
# SSH Integration
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-(env|terminfo) ]]; then
if [[ "$GHOSTTY_SHELL_FEATURES" =~ (ssh-env|ssh-terminfo) ]]; then
: "${GHOSTTY_SSH_CACHE_TIMEOUT:=5}"
: "${GHOSTTY_SSH_CHECK_TIMEOUT:=3}"
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
readonly _CACHE="${GHOSTTY_RESOURCES_DIR}/shell-integration/shared/ghostty-ssh-cache"
# SSH wrapper that preserves Ghostty features across remote connections
ssh() {
emulate -L zsh
setopt local_options no_glob_subst
local -a ssh_env ssh_opts
# Configure environment variables for remote session
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local -a ssh_env_vars=(
"COLORTERM=truecolor"
"TERM_PROGRAM=ghostty"
)
[[ -n "$TERM_PROGRAM_VERSION" ]] && ssh_env_vars+=("TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION")
# Temporarily export variables for SSH transmission
local -a ssh_exported_vars=()
local ssh_v ssh_var_name
for ssh_v in "${ssh_env_vars[@]}"; do
ssh_var_name="${ssh_v%%=*}"
if [[ -n "${(P)ssh_var_name+x}" ]]; then
ssh_exported_vars+=("$ssh_var_name=${(P)ssh_var_name}")
else
ssh_exported_vars+=("$ssh_var_name")
fi
# SSH wrapper
ssh() {
local -a env opts ctrl
env=()
opts=()
ctrl=()
export "${ssh_v}"
# Set up env vars first so terminfo installation inherits them
# Use both SendEnv and SetEnv for maximum compatibility
ssh_opts+=(-o "SendEnv $ssh_var_name")
ssh_opts+=(-o "SetEnv $ssh_v")
done
ssh_env+=("${ssh_env_vars[@]}")
fi
# Install terminfo on remote host if needed
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
local ssh_config ssh_user ssh_hostname ssh_target
ssh_config=$(command ssh -G "$@" 2>/dev/null)
ssh_user=$(printf '%s\n' "${(@f)ssh_config}" | while IFS=' ' read -r ssh_key ssh_value; do
[[ "$ssh_key" == "user" ]] && printf '%s\n' "$ssh_value" && break
done)
ssh_hostname=$(printf '%s\n' "${(@f)ssh_config}" | while IFS=' ' read -r ssh_key ssh_value; do
[[ "$ssh_key" == "hostname" ]] && printf '%s\n' "$ssh_value" && break
done)
ssh_target="${ssh_user}@${ssh_hostname}"
if [[ -n "$ssh_hostname" ]]; then
# Detect timeout command (BSD compatibility)
local ssh_timeout_cmd=""
if (( $+commands[timeout] )); then
ssh_timeout_cmd="timeout"
elif (( $+commands[gtimeout] )); then
ssh_timeout_cmd="gtimeout"
fi
# Check if terminfo is already cached
local ssh_cache_check_success=false
if (( $+commands[ghostty] )); then
if [[ -n "$ssh_timeout_cmd" ]]; then
$ssh_timeout_cmd "${GHOSTTY_SSH_CHECK_TIMEOUT}s" ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1 && ssh_cache_check_success=true
else
ghostty +ssh-cache --host="$ssh_target" >/dev/null 2>&1 && ssh_cache_check_success=true
fi
fi
if [[ "$ssh_cache_check_success" == "true" ]]; then
ssh_env+=(TERM=xterm-ghostty)
elif (( $+commands[infocmp] )); then
local ssh_terminfo
# Generate terminfo data (BSD base64 compatibility)
if base64 --help 2>&1 | grep -q GNU; then
ssh_terminfo=$(infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 -w0 2>/dev/null)
else
ssh_terminfo=$(infocmp -0 -Q2 -q xterm-ghostty 2>/dev/null | base64 2>/dev/null | tr -d '\n')
fi
if [[ -n "$ssh_terminfo" ]]; then
print "Setting up Ghostty terminfo on remote host..." >&2
local ssh_cpath_dir ssh_cpath
ssh_cpath_dir=$(mktemp -d "/tmp/ghostty-ssh-$ssh_user.XXXXXX" 2>/dev/null) || ssh_cpath_dir="/tmp/ghostty-ssh-$ssh_user.$$"
ssh_cpath="$ssh_cpath_dir/socket"
local ssh_base64_decode_cmd
if base64 --help 2>&1 | grep -q GNU; then
ssh_base64_decode_cmd="base64 -d"
else
ssh_base64_decode_cmd="base64 -D"
fi
if print "$ssh_terminfo" | $ssh_base64_decode_cmd | command ssh "${ssh_opts[@]}" -o ControlMaster=yes -o ControlPath="$ssh_cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && exit 0
command -v tic >/dev/null 2>&1 || exit 1
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && exit 0
exit 1
' 2>/dev/null; then
print "Terminfo setup complete." >&2
ssh_env+=(TERM=xterm-ghostty)
ssh_opts+=(-o "ControlPath=$ssh_cpath")
# Cache successful installation
if [[ -n "$ssh_target" ]] && (( $+commands[ghostty] )); then
{
if [[ -n "$ssh_timeout_cmd" ]]; then
$ssh_timeout_cmd "${GHOSTTY_SSH_CACHE_TIMEOUT}s" ghostty +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
else
ghostty +ssh-cache --add="$ssh_target" >/dev/null 2>&1 || true
fi
} &!
fi
else
print "Warning: Failed to install terminfo." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
print "Warning: Could not generate terminfo data." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
print "Warning: ghostty command not available for cache management." >&2
ssh_env+=(TERM=xterm-256color)
fi
else
[[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]] && ssh_env+=(TERM=xterm-256color)
fi
fi
# Ensure TERM is set when using ssh-env feature
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local -a vars
vars=(
COLORTERM=truecolor
TERM_PROGRAM=ghostty
${TERM_PROGRAM_VERSION:+TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION}
)
for v in "${vars[@]}"; do
export "${v?}"
opts+=(-o "SendEnv ${v%=*}" -o "SetEnv $v")
local ssh_term_set=false ssh_v
for ssh_v in "${ssh_env[@]}"; do
[[ "$ssh_v" =~ ^TERM= ]] && ssh_term_set=true && break
done
[[ "$ssh_term_set" == "false" && "$TERM" == "xterm-ghostty" ]] && ssh_env+=(TERM=xterm-256color)
fi
command ssh "${ssh_opts[@]}" "$@"
local ssh_ret=$?
# Restore original environment variables
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
local ssh_v
for ssh_v in "${ssh_exported_vars[@]}"; do
if [[ "$ssh_v" == *=* ]]; then
export "${ssh_v}"
else
unset "${ssh_v}"
fi
done
fi
# Install terminfo if needed, reuse control connection for main session
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-terminfo ]]; then
# Get target (only when needed for terminfo)
local target
target=$(command ssh -G "$@" 2>/dev/null | awk '/^(user|hostname) /{print $2}' | paste -sd'@')
if [[ -n "$target" ]] && "$_CACHE" chk "$target"; then
env+=(TERM=xterm-ghostty)
elif command -v infocmp >/dev/null 2>&1; then
local tinfo
tinfo=$(infocmp -x xterm-ghostty 2>/dev/null) || echo "Warning: xterm-ghostty terminfo not found locally." >&2
if [[ -n "$tinfo" ]]; then
echo "Setting up Ghostty terminfo on remote host..." >&2
local cpath
cpath="/tmp/ghostty-ssh-$USER-$RANDOM-$(date +%s)"
case $(echo "$tinfo" | command ssh "${opts[@]}" -o ControlMaster=yes -o ControlPath="$cpath" -o ControlPersist=60s "$@" '
infocmp xterm-ghostty >/dev/null 2>&1 && echo OK && exit
command -v tic >/dev/null 2>&1 || { echo NO_TIC; exit 1; }
mkdir -p ~/.terminfo 2>/dev/null && tic -x - 2>/dev/null && echo OK || echo FAIL
') in
OK)
echo "Terminfo setup complete." >&2
[[ -n "$target" ]] && "$_CACHE" add "$target"
env+=(TERM=xterm-ghostty)
ctrl+=(-o "ControlPath=$cpath")
;;
*) echo "Warning: Failed to install terminfo." >&2 ;;
esac
fi
else
echo "Warning: infocmp not found locally. Terminfo installation unavailable." >&2
fi
fi
# Fallback TERM only if terminfo didn't set it
if [[ "$GHOSTTY_SHELL_FEATURES" =~ ssh-env ]]; then
[[ $TERM == xterm-ghostty && ! " ${env[*]} " =~ " TERM=" ]] && env+=(TERM=xterm-256color)
fi
# Execute
if [[ ${#env[@]} -gt 0 ]]; then
env "${env[@]}" command ssh "${opts[@]}" "${ctrl[@]}" "$@"
else
command ssh "${opts[@]}" "${ctrl[@]}" "$@"
fi
return $ssh_ret
}
fi