Detailed changes
  
  
    
    @@ -4531,6 +4531,7 @@ dependencies = [
  "paths",
  "serde",
  "serde_json",
+ "shlex",
  "smol",
  "task",
  "util",
@@ -4756,6 +4757,7 @@ dependencies = [
  "serde_json",
  "serde_json_lenient",
  "settings",
+ "shlex",
  "sysinfo 0.37.2",
  "task",
  "tasks_ui",
@@ -12924,6 +12926,7 @@ dependencies = [
  "settings",
  "sha2",
  "shellexpand 2.1.2",
+ "shlex",
  "smallvec",
  "smol",
  "snippet",
@@ -13836,6 +13839,7 @@ dependencies = [
  "serde",
  "serde_json",
  "settings",
+ "shlex",
  "smol",
  "tempfile",
  "thiserror 2.0.17",
  
  
  
    
    @@ -20,7 +20,7 @@ use futures::{
 };
 use gpui::{AsyncApp, BackgroundExecutor, Task};
 use smol::fs;
-use util::{ResultExt as _, debug_panic, maybe, paths::PathExt, shell::ShellKind};
+use util::{ResultExt as _, debug_panic, maybe, paths::PathExt};
 
 /// Path to the program used for askpass
 ///
@@ -199,15 +199,9 @@ impl PasswordProxy {
         let current_exec =
             std::env::current_exe().context("Failed to determine current zed executable path.")?;
 
-        // TODO: Inferred from the use of powershell.exe in askpass_helper_script
-        let shell_kind = if cfg!(windows) {
-            ShellKind::PowerShell
-        } else {
-            ShellKind::Posix
-        };
         let askpass_program = ASKPASS_PROGRAM
             .get_or_init(|| current_exec)
-            .try_shell_safe(shell_kind)
+            .try_shell_safe()
             .context("Failed to shell-escape Askpass program path.")?
             .to_string();
         // Create an askpass script that communicates back to this process.
  
  
  
    
    @@ -35,6 +35,7 @@ log.workspace = true
 paths.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+shlex.workspace = true
 smol.workspace = true
 task.workspace = true
 util.workspace = true
  
  
  
    
    @@ -6,7 +6,7 @@ use gpui::AsyncApp;
 use serde_json::Value;
 use std::{path::PathBuf, sync::OnceLock};
 use task::DebugRequest;
-use util::{ResultExt, maybe, shell::ShellKind};
+use util::{ResultExt, maybe};
 
 use crate::*;
 
@@ -67,7 +67,7 @@ impl JsDebugAdapter {
                     .get("type")
                     .filter(|value| value == &"node-terminal")?;
                 let command = configuration.get("command")?.as_str()?.to_owned();
-                let mut args = ShellKind::Posix.split(&command)?.into_iter();
+                let mut args = shlex::split(&command)?.into_iter();
                 let program = args.next()?;
                 configuration.insert("runtimeExecutable".to_owned(), program.into());
                 configuration.insert(
  
  
  
    
    @@ -60,6 +60,7 @@ serde.workspace = true
 serde_json.workspace = true
 serde_json_lenient.workspace = true
 settings.workspace = true
+shlex.workspace = true
 sysinfo.workspace = true
 task.workspace = true
 tasks_ui.workspace = true
  
  
  
    
    @@ -32,7 +32,7 @@ use ui::{
     SharedString, Styled, StyledExt, ToggleButton, ToggleState, Toggleable, Tooltip, Window, div,
     h_flex, relative, rems, v_flex,
 };
-use util::{ResultExt, rel_path::RelPath, shell::ShellKind};
+use util::{ResultExt, rel_path::RelPath};
 use workspace::{ModalView, Workspace, notifications::DetachAndPromptErr, pane};
 
 use crate::{attach_modal::AttachModal, debugger_panel::DebugPanel};
@@ -839,11 +839,7 @@ impl ConfigureMode {
             };
         }
         let command = self.program.read(cx).text(cx);
-        let mut args = ShellKind::Posix
-            .split(&command)
-            .into_iter()
-            .flatten()
-            .peekable();
+        let mut args = shlex::split(&command).into_iter().flatten().peekable();
         let mut env = FxHashMap::default();
         while args.peek().is_some_and(|arg| arg.contains('=')) {
             let arg = args.next().unwrap();
@@ -1269,11 +1265,7 @@ impl PickerDelegate for DebugDelegate {
             })
             .unwrap_or_default();
 
-        let mut args = ShellKind::Posix
-            .split(&text)
-            .into_iter()
-            .flatten()
-            .peekable();
+        let mut args = shlex::split(&text).into_iter().flatten().peekable();
         let mut env = HashMap::default();
         while args.peek().is_some_and(|arg| arg.contains('=')) {
             let arg = args.next().unwrap();
  
  
  
    
    @@ -72,6 +72,7 @@ serde_json.workspace = true
 settings.workspace = true
 sha2.workspace = true
 shellexpand.workspace = true
+shlex.workspace = true
 smallvec.workspace = true
 smol.workspace = true
 snippet.workspace = true
  
  
  
    
    @@ -4,7 +4,7 @@ use language::Buffer;
 use remote::RemoteClient;
 use rpc::proto::{self, REMOTE_SERVER_PROJECT_ID};
 use std::{collections::VecDeque, path::Path, sync::Arc};
-use task::{Shell, shell_to_proto};
+use task::Shell;
 use util::ResultExt;
 use worktree::Worktree;
 
@@ -198,7 +198,7 @@ impl ProjectEnvironment {
                         .proto_client()
                         .request(proto::GetDirectoryEnvironment {
                             project_id: REMOTE_SERVER_PROJECT_ID,
-                            shell: Some(shell_to_proto(shell.clone())),
+                            shell: Some(shell.clone().to_proto()),
                             directory: abs_path.to_string_lossy().to_string(),
                         });
                 cx.spawn(async move |_, _| {
  
  
  
    
    @@ -657,7 +657,6 @@ impl LspCommand for GetLspRunnables {
                     );
                     task_template.args.extend(cargo.cargo_args);
                     if !cargo.executable_args.is_empty() {
-                        let shell_kind = task_template.shell.shell_kind(cfg!(windows));
                         task_template.args.push("--".to_string());
                         task_template.args.extend(
                             cargo
@@ -683,7 +682,7 @@ impl LspCommand for GetLspRunnables {
                                 // That bit is not auto-expanded when using single quotes.
                                 // Escape extra cargo args unconditionally as those are unlikely to contain `~`.
                                 .flat_map(|extra_arg| {
-                                    shell_kind.try_quote(&extra_arg).map(|s| s.to_string())
+                                    shlex::try_quote(&extra_arg).ok().map(|s| s.to_string())
                                 }),
                         );
                     }
  
  
  
    
    @@ -168,19 +168,20 @@ impl Project {
                         match remote_client {
                             Some(remote_client) => match activation_script.clone() {
                                 activation_script if !activation_script.is_empty() => {
-                                    let separator = shell_kind.sequential_commands_separator();
-                                    let activation_script =
-                                        activation_script.join(&format!("{separator} "));
+                                    let activation_script = activation_script.join("; ");
                                     let to_run = format_to_run();
-                                    let shell = remote_client
-                                        .read(cx)
-                                        .shell()
-                                        .unwrap_or_else(get_default_system_shell);
-                                    let arg = format!("{activation_script}{separator} {to_run}");
-                                    let args = shell_kind.args_for_shell(false, arg);
-
+                                    let args = vec![
+                                        "-c".to_owned(),
+                                        format!("{activation_script}; {to_run}"),
+                                    ];
                                     create_remote_shell(
-                                        Some((&shell, &args)),
+                                        Some((
+                                            &remote_client
+                                                .read(cx)
+                                                .shell()
+                                                .unwrap_or_else(get_default_system_shell),
+                                            &args,
+                                        )),
                                         env,
                                         path,
                                         remote_client,
@@ -561,7 +562,7 @@ fn create_remote_shell(
         Shell::WithArguments {
             program: command.program,
             args: command.args,
-            title_override: Some(format!("{} — Terminal", host)),
+            title_override: Some(format!("{} — Terminal", host).into()),
         },
         command.env,
     ))
  
  
  
    
    @@ -34,6 +34,7 @@ rpc = { workspace = true, features = ["gpui"] }
 serde.workspace = true
 serde_json.workspace = true
 settings.workspace = true
+shlex.workspace = true
 smol.workspace = true
 tempfile.workspace = true
 thiserror.workspace = true
  
  
  
    
    @@ -203,6 +203,17 @@ impl AsMut<Child> for MasterProcess {
     }
 }
 
+macro_rules! shell_script {
+    ($fmt:expr, $($name:ident = $arg:expr),+ $(,)?) => {{
+        format!(
+            $fmt,
+            $(
+                $name = shlex::try_quote($arg).unwrap()
+            ),+
+        )
+    }};
+}
+
 #[async_trait(?Send)]
 impl RemoteConnection for SshRemoteConnection {
     async fn kill(&self) -> Result<()> {
@@ -727,24 +738,21 @@ impl SshRemoteConnection {
         delegate.set_status(Some("Extracting remote development server"), cx);
         let server_mode = 0o755;
 
-        let shell_kind = ShellKind::Posix;
         let orig_tmp_path = tmp_path.display(self.path_style());
-        let server_mode = format!("{:o}", server_mode);
-        let server_mode = shell_kind
-            .try_quote(&server_mode)
-            .context("shell quoting")?;
-        let dst_path = dst_path.display(self.path_style());
-        let dst_path = shell_kind.try_quote(&dst_path).context("shell quoting")?;
         let script = if let Some(tmp_path) = orig_tmp_path.strip_suffix(".gz") {
-            format!(
-                "gunzip -f {orig_tmp_path} && chmod {server_mode} {tmp_path} && mv {tmp_path} {dst_path}"
+            shell_script!(
+                "gunzip -f {orig_tmp_path} && chmod {server_mode} {tmp_path} && mv {tmp_path} {dst_path}",
+                server_mode = &format!("{:o}", server_mode),
+                dst_path = &dst_path.display(self.path_style()),
             )
         } else {
-            format!("chmod {server_mode} {orig_tmp_path} && mv {orig_tmp_path} {dst_path}")
+            shell_script!(
+                "chmod {server_mode} {orig_tmp_path} && mv {orig_tmp_path} {dst_path}",
+                server_mode = &format!("{:o}", server_mode),
+                dst_path = &dst_path.display(self.path_style())
+            )
         };
-        let script = shell_kind.try_quote(&script).context("shell quoting")?;
-        let args = shell_kind.args_for_shell(false, script.to_string());
-        self.socket.run_command("sh", &args).await?;
+        self.socket.run_command("sh", &["-c", &script]).await?;
         Ok(())
     }
 
@@ -878,12 +886,8 @@ impl SshSocket {
     // into a machine. You must use `cd` to get back to $HOME.
     // You need to do it like this: $ ssh host "cd; sh -c 'ls -l /tmp'"
     fn ssh_command(&self, program: &str, args: &[impl AsRef<str>]) -> process::Command {
-        let shell_kind = ShellKind::Posix;
         let mut command = util::command::new_smol_command("ssh");
-        let mut to_run = shell_kind
-            .try_quote(program)
-            .expect("shell quoting")
-            .into_owned();
+        let mut to_run = shlex::try_quote(program).unwrap().into_owned();
         for arg in args {
             // We're trying to work with: sh, bash, zsh, fish, tcsh, ...?
             debug_assert!(
@@ -891,10 +895,9 @@ impl SshSocket {
                 "multiline arguments do not work in all shells"
             );
             to_run.push(' ');
-            to_run.push_str(&shell_kind.try_quote(arg.as_ref()).expect("shell quoting"));
+            to_run.push_str(&shlex::try_quote(arg.as_ref()).unwrap());
         }
-        let separator = shell_kind.sequential_commands_separator();
-        let to_run = format!("cd{separator} {to_run}");
+        let to_run = format!("cd; {to_run}");
         self.ssh_options(&mut command, true)
             .arg(self.connection_options.ssh_url())
             .arg("-T")
@@ -903,7 +906,7 @@ impl SshSocket {
         command
     }
 
-    async fn run_command(&self, program: &str, args: &[impl AsRef<str>]) -> Result<String> {
+    async fn run_command(&self, program: &str, args: &[&str]) -> Result<String> {
         let output = self.ssh_command(program, args).output().await?;
         anyhow::ensure!(
             output.status.success(),
@@ -1077,10 +1080,7 @@ impl SshConnectionOptions {
             "-w",
         ];
 
-        let mut tokens = ShellKind::Posix
-            .split(input)
-            .context("invalid input")?
-            .into_iter();
+        let mut tokens = shlex::split(input).context("invalid input")?.into_iter();
 
         'outer: while let Some(arg) = tokens.next() {
             if ALLOWED_OPTS.contains(&(&arg as &str)) {
@@ -1243,7 +1243,6 @@ fn build_command(
 ) -> Result<CommandTemplate> {
     use std::fmt::Write as _;
 
-    let shell_kind = ShellKind::new(ssh_shell, false);
     let mut exec = String::new();
     if let Some(working_dir) = working_dir {
         let working_dir = RemotePathBuf::new(working_dir, ssh_path_style).to_string();
@@ -1253,41 +1252,29 @@ fn build_command(
         const TILDE_PREFIX: &'static str = "~/";
         if working_dir.starts_with(TILDE_PREFIX) {
             let working_dir = working_dir.trim_start_matches("~").trim_start_matches("/");
-            write!(exec, "cd \"$HOME/{working_dir}\" && ",)?;
+            write!(exec, "cd \"$HOME/{working_dir}\" && ",).unwrap();
         } else {
-            write!(exec, "cd \"{working_dir}\" && ",)?;
+            write!(exec, "cd \"{working_dir}\" && ",).unwrap();
         }
     } else {
-        write!(exec, "cd && ")?;
+        write!(exec, "cd && ").unwrap();
     };
-    write!(exec, "exec env ")?;
+    write!(exec, "exec env ").unwrap();
 
     for (k, v) in input_env.iter() {
-        write!(
-            exec,
-            "{}={} ",
-            k,
-            shell_kind.try_quote(v).context("shell quoting")?
-        )?;
+        if let Some((k, v)) = shlex::try_quote(k).ok().zip(shlex::try_quote(v).ok()) {
+            write!(exec, "{}={} ", k, v).unwrap();
+        }
     }
 
     if let Some(input_program) = input_program {
-        write!(
-            exec,
-            "{}",
-            shell_kind
-                .try_quote(&input_program)
-                .context("shell quoting")?
-        )?;
+        write!(exec, "{}", shlex::try_quote(&input_program).unwrap()).unwrap();
         for arg in input_args {
-            write!(
-                exec,
-                " {}",
-                shell_kind.try_quote(&arg).context("shell quoting")?
-            )?;
+            let arg = shlex::try_quote(&arg)?;
+            write!(exec, " {}", &arg).unwrap();
         }
     } else {
-        write!(exec, "{ssh_shell} -l")?;
+        write!(exec, "{ssh_shell} -l").unwrap();
     };
 
     let mut args = Vec::new();
  
  
  
    
    @@ -2,7 +2,7 @@ use crate::{
     RemoteClientDelegate, RemotePlatform,
     remote_client::{CommandTemplate, RemoteConnection, RemoteConnectionOptions},
 };
-use anyhow::{Context, Result, anyhow, bail};
+use anyhow::{Result, anyhow, bail};
 use async_trait::async_trait;
 use collections::HashMap;
 use futures::channel::mpsc::{Sender, UnboundedReceiver, UnboundedSender};
@@ -441,7 +441,6 @@ impl RemoteConnection for WslRemoteConnection {
             bail!("WSL shares the network interface with the host system");
         }
 
-        let shell = ShellKind::new(&self.shell, false);
         let working_dir = working_dir
             .map(|working_dir| RemotePathBuf::new(working_dir, PathStyle::Posix).to_string())
             .unwrap_or("~".to_string());
@@ -449,26 +448,19 @@ impl RemoteConnection for WslRemoteConnection {
         let mut exec = String::from("exec env ");
 
         for (k, v) in env.iter() {
-            write!(
-                exec,
-                "{}={} ",
-                k,
-                shell.try_quote(&v).context("shell quoting")?
-            )?;
+            if let Some((k, v)) = shlex::try_quote(k).ok().zip(shlex::try_quote(v).ok()) {
+                write!(exec, "{}={} ", k, v).unwrap();
+            }
         }
 
         if let Some(program) = program {
-            write!(
-                exec,
-                "{}",
-                shell.try_quote(&program).context("shell quoting")?
-            )?;
+            write!(exec, "{}", shlex::try_quote(&program)?).unwrap();
             for arg in args {
-                let arg = shell.try_quote(&arg).context("shell quoting")?;
-                write!(exec, " {}", &arg)?;
+                let arg = shlex::try_quote(&arg)?;
+                write!(exec, " {}", &arg).unwrap();
             }
         } else {
-            write!(&mut exec, "{} -l", self.shell)?;
+            write!(&mut exec, "{} -l", self.shell).unwrap();
         }
 
         let wsl_args = if let Some(user) = &self.connection_options.user {
  
  
  
    
    @@ -774,7 +774,7 @@ impl HeadlessProject {
         envelope: TypedEnvelope<proto::GetDirectoryEnvironment>,
         mut cx: AsyncApp,
     ) -> Result<proto::DirectoryEnvironment> {
-        let shell = task::shell_from_proto(envelope.payload.shell.context("missing shell")?)?;
+        let shell = task::Shell::from_proto(envelope.payload.shell.context("missing shell")?)?;
         let directory = PathBuf::from(envelope.payload.directory);
         let environment = this
             .update(&mut cx, |this, cx| {
  
  
  
    
    @@ -1,5 +1,8 @@
-use crate::shell::get_system_shell;
-use crate::shell::{Shell, ShellKind};
+use util::shell::get_system_shell;
+
+use crate::Shell;
+
+pub use util::shell::ShellKind;
 
 /// ShellBuilder is used to turn a user-requested task into a
 /// program that can be executed by the shell.
  
  
  
    
    @@ -3,6 +3,7 @@
 mod adapter_schema;
 mod debug_format;
 mod serde_helpers;
+mod shell_builder;
 pub mod static_source;
 mod task_template;
 mod vscode_debug_format;
@@ -11,22 +12,23 @@ mod vscode_format;
 use anyhow::Context as _;
 use collections::{HashMap, HashSet, hash_map};
 use gpui::SharedString;
+use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use std::borrow::Cow;
 use std::path::PathBuf;
 use std::str::FromStr;
+use util::get_system_shell;
 
 pub use adapter_schema::{AdapterSchema, AdapterSchemas};
 pub use debug_format::{
     AttachRequest, BuildTaskDefinition, DebugRequest, DebugScenario, DebugTaskFile, LaunchRequest,
     Request, TcpArgumentsTemplate, ZedDebugConfig,
 };
+pub use shell_builder::{ShellBuilder, ShellKind};
 pub use task_template::{
     DebugArgsRequest, HideStrategy, RevealStrategy, TaskTemplate, TaskTemplates,
     substitute_variables_in_map, substitute_variables_in_str,
 };
-pub use util::shell::{Shell, ShellKind};
-pub use util::shell_builder::ShellBuilder;
 pub use vscode_debug_format::VsCodeDebugTaskFile;
 pub use vscode_format::VsCodeTaskFile;
 pub use zed_actions::RevealTarget;
@@ -316,32 +318,81 @@ pub struct TaskContext {
 #[derive(Clone, Debug)]
 pub struct RunnableTag(pub SharedString);
 
-pub fn shell_from_proto(proto: proto::Shell) -> anyhow::Result<Shell> {
-    let shell_type = proto.shell_type.context("invalid shell type")?;
-    let shell = match shell_type {
-        proto::shell::ShellType::System(_) => Shell::System,
-        proto::shell::ShellType::Program(program) => Shell::Program(program),
-        proto::shell::ShellType::WithArguments(program) => Shell::WithArguments {
-            program: program.program,
-            args: program.args,
-            title_override: None,
-        },
-    };
-    Ok(shell)
+/// Shell configuration to open the terminal with.
+#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq, JsonSchema, Hash)]
+#[serde(rename_all = "snake_case")]
+pub enum Shell {
+    /// Use the system's default terminal configuration in /etc/passwd
+    #[default]
+    System,
+    /// Use a specific program with no arguments.
+    Program(String),
+    /// Use a specific program with arguments.
+    WithArguments {
+        /// The program to run.
+        program: String,
+        /// The arguments to pass to the program.
+        args: Vec<String>,
+        /// An optional string to override the title of the terminal tab
+        title_override: Option<SharedString>,
+    },
 }
 
-pub fn shell_to_proto(shell: Shell) -> proto::Shell {
-    let shell_type = match shell {
-        Shell::System => proto::shell::ShellType::System(proto::System {}),
-        Shell::Program(program) => proto::shell::ShellType::Program(program),
-        Shell::WithArguments {
-            program,
-            args,
-            title_override: _,
-        } => proto::shell::ShellType::WithArguments(proto::shell::WithArguments { program, args }),
-    };
-    proto::Shell {
-        shell_type: Some(shell_type),
+impl Shell {
+    pub fn program(&self) -> String {
+        match self {
+            Shell::Program(program) => program.clone(),
+            Shell::WithArguments { program, .. } => program.clone(),
+            Shell::System => get_system_shell(),
+        }
+    }
+
+    pub fn program_and_args(&self) -> (String, &[String]) {
+        match self {
+            Shell::Program(program) => (program.clone(), &[]),
+            Shell::WithArguments { program, args, .. } => (program.clone(), args),
+            Shell::System => (get_system_shell(), &[]),
+        }
+    }
+
+    pub fn shell_kind(&self, is_windows: bool) -> ShellKind {
+        match self {
+            Shell::Program(program) => ShellKind::new(program, is_windows),
+            Shell::WithArguments { program, .. } => ShellKind::new(program, is_windows),
+            Shell::System => ShellKind::system(),
+        }
+    }
+
+    pub fn from_proto(proto: proto::Shell) -> anyhow::Result<Self> {
+        let shell_type = proto.shell_type.context("invalid shell type")?;
+        let shell = match shell_type {
+            proto::shell::ShellType::System(_) => Self::System,
+            proto::shell::ShellType::Program(program) => Self::Program(program),
+            proto::shell::ShellType::WithArguments(program) => Self::WithArguments {
+                program: program.program,
+                args: program.args,
+                title_override: None,
+            },
+        };
+        Ok(shell)
+    }
+
+    pub fn to_proto(self) -> proto::Shell {
+        let shell_type = match self {
+            Shell::System => proto::shell::ShellType::System(proto::System {}),
+            Shell::Program(program) => proto::shell::ShellType::Program(program),
+            Shell::WithArguments {
+                program,
+                args,
+                title_override: _,
+            } => proto::shell::ShellType::WithArguments(proto::shell::WithArguments {
+                program,
+                args,
+            }),
+        };
+        proto::Shell {
+            shell_type: Some(shell_type),
+        }
     }
 }
 
  
  
  
    
    @@ -67,7 +67,7 @@ use thiserror::Error;
 use gpui::{
     App, AppContext as _, Bounds, ClipboardItem, Context, EventEmitter, Hsla, Keystroke, Modifiers,
     MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, Pixels, Point, Rgba,
-    ScrollWheelEvent, Size, Task, TouchPhase, Window, actions, black, px,
+    ScrollWheelEvent, SharedString, Size, Task, TouchPhase, Window, actions, black, px,
 };
 
 use crate::mappings::{colors::to_alac_rgb, keys::to_esc_str};
@@ -277,7 +277,7 @@ pub struct TerminalError {
     pub directory: Option<PathBuf>,
     pub program: Option<String>,
     pub args: Option<Vec<String>>,
-    pub title_override: Option<String>,
+    pub title_override: Option<SharedString>,
     pub source: std::io::Error,
 }
 
@@ -445,14 +445,14 @@ impl TerminalBuilder {
             struct ShellParams {
                 program: String,
                 args: Option<Vec<String>>,
-                title_override: Option<String>,
+                title_override: Option<SharedString>,
             }
 
             impl ShellParams {
                 fn new(
                     program: String,
                     args: Option<Vec<String>>,
-                    title_override: Option<String>,
+                    title_override: Option<SharedString>,
                 ) -> Self {
                     log::debug!("Using {program} as shell");
                     Self {
@@ -514,8 +514,10 @@ impl TerminalBuilder {
                     working_directory: working_directory.clone(),
                     drain_on_exit: true,
                     env: env.clone().into_iter().collect(),
+                    // We do not want to escape arguments if we are using CMD as our shell.
+                    // If we do we end up with too many quotes/escaped quotes for CMD to handle.
                     #[cfg(windows)]
-                    escape_args: shell_kind.tty_escape_args(),
+                    escape_args: shell_kind != util::shell::ShellKind::Cmd,
                 }
             };
 
@@ -822,7 +824,7 @@ pub struct Terminal {
     pub last_content: TerminalContent,
     pub selection_head: Option<AlacPoint>,
     pub breadcrumb_text: String,
-    title_override: Option<String>,
+    title_override: Option<SharedString>,
     scroll_px: Pixels,
     next_link_id: usize,
     selection_phase: SelectionPhase,
  
  
  
    
    @@ -66,7 +66,7 @@ fn settings_shell_to_task_shell(shell: settings::Shell) -> Shell {
         } => Shell::WithArguments {
             program,
             args,
-            title_override: title_override.map(Into::into),
+            title_override,
         },
     }
 }
  
  
  
    
    @@ -15,7 +15,7 @@ use std::{
     sync::LazyLock,
 };
 
-use crate::{rel_path::RelPath, shell::ShellKind};
+use crate::rel_path::RelPath;
 
 static HOME_DIR: OnceLock<PathBuf> = OnceLock::new();
 
@@ -84,7 +84,9 @@ pub trait PathExt {
     fn multiple_extensions(&self) -> Option<String>;
 
     /// Try to make a shell-safe representation of the path.
-    fn try_shell_safe(&self, shell_kind: ShellKind) -> anyhow::Result<String>;
+    ///
+    /// For Unix, the path is escaped to be safe for POSIX shells
+    fn try_shell_safe(&self) -> anyhow::Result<String>;
 }
 
 impl<T: AsRef<Path>> PathExt for T {
@@ -162,16 +164,24 @@ impl<T: AsRef<Path>> PathExt for T {
         Some(parts.into_iter().join("."))
     }
 
-    fn try_shell_safe(&self, shell_kind: ShellKind) -> anyhow::Result<String> {
-        let path_str = self
-            .as_ref()
-            .to_str()
-            .with_context(|| "Path contains invalid UTF-8")?;
-        shell_kind
-            .try_quote(path_str)
-            .as_deref()
-            .map(ToOwned::to_owned)
-            .context("Failed to quote path")
+    fn try_shell_safe(&self) -> anyhow::Result<String> {
+        #[cfg(target_os = "windows")]
+        {
+            Ok(self.as_ref().to_string_lossy().to_string())
+        }
+
+        #[cfg(not(target_os = "windows"))]
+        {
+            let path_str = self
+                .as_ref()
+                .to_str()
+                .with_context(|| "Path contains invalid UTF-8")?;
+
+            // As of writing, this can only be fail if the path contains a null byte, which shouldn't be possible
+            // but shlex has annotated the error as #[non_exhaustive] so we can't make it a compile error if other
+            // errors are introduced in the future :(
+            Ok(shlex::try_quote(path_str)?.into_owned())
+        }
     }
 }
 
  
  
  
    
    @@ -1,53 +1,6 @@
-use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use std::{borrow::Cow, fmt, path::Path, sync::LazyLock};
 
-/// Shell configuration to open the terminal with.
-#[derive(Clone, Debug, Default, PartialEq, Eq, Hash, Serialize, Deserialize, JsonSchema)]
-#[serde(rename_all = "snake_case")]
-pub enum Shell {
-    /// Use the system's default terminal configuration in /etc/passwd
-    #[default]
-    System,
-    /// Use a specific program with no arguments.
-    Program(String),
-    /// Use a specific program with arguments.
-    WithArguments {
-        /// The program to run.
-        program: String,
-        /// The arguments to pass to the program.
-        args: Vec<String>,
-        /// An optional string to override the title of the terminal tab
-        title_override: Option<String>,
-    },
-}
-
-impl Shell {
-    pub fn program(&self) -> String {
-        match self {
-            Shell::Program(program) => program.clone(),
-            Shell::WithArguments { program, .. } => program.clone(),
-            Shell::System => get_system_shell(),
-        }
-    }
-
-    pub fn program_and_args(&self) -> (String, &[String]) {
-        match self {
-            Shell::Program(program) => (program.clone(), &[]),
-            Shell::WithArguments { program, args, .. } => (program.clone(), args),
-            Shell::System => (get_system_shell(), &[]),
-        }
-    }
-
-    pub fn shell_kind(&self, is_windows: bool) -> ShellKind {
-        match self {
-            Shell::Program(program) => ShellKind::new(program, is_windows),
-            Shell::WithArguments { program, .. } => ShellKind::new(program, is_windows),
-            Shell::System => ShellKind::system(),
-        }
-    }
-}
-
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub enum ShellKind {
     #[default]
@@ -232,20 +185,32 @@ impl ShellKind {
             .unwrap_or_else(|| program.as_os_str())
             .to_string_lossy();
 
-        match &*program {
-            "powershell" | "pwsh" => ShellKind::PowerShell,
-            "cmd" => ShellKind::Cmd,
-            "nu" => ShellKind::Nushell,
-            "fish" => ShellKind::Fish,
-            "csh" => ShellKind::Csh,
-            "tcsh" => ShellKind::Tcsh,
-            "rc" => ShellKind::Rc,
-            "xonsh" => ShellKind::Xonsh,
-            "sh" | "bash" => ShellKind::Posix,
-            _ if is_windows => ShellKind::PowerShell,
-            // Some other shell detected, the user might install and use a
-            // unix-like shell.
-            _ => ShellKind::Posix,
+        if program == "powershell" || program == "pwsh" {
+            ShellKind::PowerShell
+        } else if program == "cmd" {
+            ShellKind::Cmd
+        } else if program == "nu" {
+            ShellKind::Nushell
+        } else if program == "fish" {
+            ShellKind::Fish
+        } else if program == "csh" {
+            ShellKind::Csh
+        } else if program == "tcsh" {
+            ShellKind::Tcsh
+        } else if program == "rc" {
+            ShellKind::Rc
+        } else if program == "xonsh" {
+            ShellKind::Xonsh
+        } else if program == "sh" || program == "bash" {
+            ShellKind::Posix
+        } else {
+            if is_windows {
+                ShellKind::PowerShell
+            } else {
+                // Some other shell detected, the user might install and use a
+                // unix-like shell.
+                ShellKind::Posix
+            }
         }
     }
 
@@ -398,132 +363,44 @@ impl ShellKind {
         match self {
             ShellKind::PowerShell => Some('&'),
             ShellKind::Nushell => Some('^'),
-            ShellKind::Posix
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Rc
-            | ShellKind::Fish
-            | ShellKind::Cmd
-            | ShellKind::Xonsh => None,
+            _ => None,
         }
     }
 
     pub const fn sequential_commands_separator(&self) -> char {
         match self {
             ShellKind::Cmd => '&',
-            ShellKind::Posix
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Rc
-            | ShellKind::Fish
-            | ShellKind::PowerShell
-            | ShellKind::Nushell
-            | ShellKind::Xonsh => ';',
+            _ => ';',
         }
     }
 
     pub fn try_quote<'a>(&self, arg: &'a str) -> Option<Cow<'a, str>> {
-        // As of writing, this can only be fail if the path contains a null byte, which shouldn't be possible
-        // but shlex has annotated the error as #[non_exhaustive] so we can't make it a compile error if other
-        // errors are introduced in the future :(
         shlex::try_quote(arg).ok().map(|arg| match self {
-            ShellKind::PowerShell => Cow::Owned(arg.replace("\\\"", "`\"").replace("\\\\", "\\")),
-            ShellKind::Cmd => Cow::Owned(arg.replace("\\\\", "\\")),
-            ShellKind::Posix
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Rc
-            | ShellKind::Fish
-            | ShellKind::Nushell
-            | ShellKind::Xonsh => arg,
+            // If we are running in PowerShell, we want to take extra care when escaping strings.
+            // In particular, we want to escape strings with a backtick (`) rather than a backslash (\).
+            // TODO double escaping backslashes is not necessary in PowerShell and probably CMD
+            ShellKind::PowerShell => Cow::Owned(arg.replace("\\\"", "`\"")),
+            _ => arg,
         })
     }
 
-    pub fn split(&self, input: &str) -> Option<Vec<String>> {
-        shlex::split(input)
-    }
-
     pub const fn activate_keyword(&self) -> &'static str {
         match self {
             ShellKind::Cmd => "",
             ShellKind::Nushell => "overlay use",
             ShellKind::PowerShell => ".",
-            ShellKind::Fish
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Posix
-            | ShellKind::Rc
-            | ShellKind::Xonsh => "source",
+            ShellKind::Fish => "source",
+            ShellKind::Csh => "source",
+            ShellKind::Tcsh => "source",
+            ShellKind::Posix | ShellKind::Rc => "source",
+            ShellKind::Xonsh => "source",
         }
     }
 
     pub const fn clear_screen_command(&self) -> &'static str {
         match self {
             ShellKind::Cmd => "cls",
-            ShellKind::Posix
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Rc
-            | ShellKind::Fish
-            | ShellKind::PowerShell
-            | ShellKind::Nushell
-            | ShellKind::Xonsh => "clear",
-        }
-    }
-
-    #[cfg(windows)]
-    /// We do not want to escape arguments if we are using CMD as our shell.
-    /// If we do we end up with too many quotes/escaped quotes for CMD to handle.
-    pub const fn tty_escape_args(&self) -> bool {
-        match self {
-            ShellKind::Cmd => false,
-            ShellKind::Posix
-            | ShellKind::Csh
-            | ShellKind::Tcsh
-            | ShellKind::Rc
-            | ShellKind::Fish
-            | ShellKind::PowerShell
-            | ShellKind::Nushell
-            | ShellKind::Xonsh => true,
+            _ => "clear",
         }
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    // Examples
-    // WSL
-    // wsl.exe --distribution NixOS --cd /home/user -- /usr/bin/zsh -c "echo hello"
-    // wsl.exe --distribution NixOS --cd /home/user -- /usr/bin/zsh -c "\"echo hello\"" | grep hello"
-    // wsl.exe --distribution NixOS --cd ~ env RUST_LOG=info,remote=debug .zed_wsl_server/zed-remote-server-dev-build proxy --identifier dev-workspace-53
-    // PowerShell from Nushell
-    // nu -c overlay use "C:\Users\kubko\dev\python\39007\tests\.venv\Scripts\activate.nu"; ^"C:\Program Files\PowerShell\7\pwsh.exe" -C "C:\Users\kubko\dev\python\39007\tests\.venv\Scripts\python.exe -m pytest \"test_foo.py::test_foo\""
-    // PowerShell from CMD
-    // cmd /C \" \"C:\\\\Users\\\\kubko\\\\dev\\\\python\\\\39007\\\\tests\\\\.venv\\\\Scripts\\\\activate.bat\"& \"C:\\\\Program Files\\\\PowerShell\\\\7\\\\pwsh.exe\" -C \"C:\\\\Users\\\\kubko\\\\dev\\\\python\\\\39007\\\\tests\\\\.venv\\\\Scripts\\\\python.exe -m pytest \\\"test_foo.py::test_foo\\\"\"\"
-
-    #[test]
-    fn test_try_quote_powershell() {
-        let shell_kind = ShellKind::PowerShell;
-        assert_eq!(
-            shell_kind
-                .try_quote("C:\\Users\\johndoe\\dev\\python\\39007\\tests\\.venv\\Scripts\\python.exe -m pytest \"test_foo.py::test_foo\"")
-                .unwrap()
-                .into_owned(),
-            "\"C:\\Users\\johndoe\\dev\\python\\39007\\tests\\.venv\\Scripts\\python.exe -m pytest `\"test_foo.py::test_foo`\"\"".to_string()
-        );
-    }
-
-    #[test]
-    fn test_try_quote_cmd() {
-        let shell_kind = ShellKind::Cmd;
-        assert_eq!(
-            shell_kind
-                .try_quote("C:\\Users\\johndoe\\dev\\python\\39007\\tests\\.venv\\Scripts\\python.exe -m pytest \"test_foo.py::test_foo\"")
-                .unwrap()
-                .into_owned(),
-            "\"C:\\Users\\johndoe\\dev\\python\\39007\\tests\\.venv\\Scripts\\python.exe -m pytest \\\"test_foo.py::test_foo\\\"\"".to_string()
-        );
-    }
-}
  
  
  
    
    @@ -35,8 +35,8 @@ async fn capture_unix(
     use std::os::unix::process::CommandExt;
     use std::process::Stdio;
 
+    let zed_path = super::get_shell_safe_zed_path()?;
     let shell_kind = ShellKind::new(shell_path, false);
-    let zed_path = super::get_shell_safe_zed_path(shell_kind)?;
 
     let mut command_string = String::new();
     let mut command = std::process::Command::new(shell_path);
  
  
  
    
    @@ -9,7 +9,6 @@ pub mod rel_path;
 pub mod schemars;
 pub mod serde;
 pub mod shell;
-pub mod shell_builder;
 pub mod shell_env;
 pub mod size;
 #[cfg(any(test, feature = "test-support"))]
@@ -296,12 +295,12 @@ fn load_shell_from_passwd() -> Result<()> {
 }
 
 /// Returns a shell escaped path for the current zed executable
-pub fn get_shell_safe_zed_path(shell_kind: shell::ShellKind) -> anyhow::Result<String> {
+pub fn get_shell_safe_zed_path() -> anyhow::Result<String> {
     let zed_path =
         std::env::current_exe().context("Failed to determine current zed executable path.")?;
 
     zed_path
-        .try_shell_safe(shell_kind)
+        .try_shell_safe()
         .context("Failed to shell-escape Zed executable path.")
 }