fix codex resume message at end of session (#3957)

This was only being printed when running the codex-tui executable
directly, not via the codex-cli wrapper.

codex-rs/Cargo.lock

@@ -638,9 +638,11 @@ dependencies = [
  "codex-protocol",
  "codex-protocol-ts",
  "codex-tui",
+ "owo-colors",
  "predicates",
  "pretty_assertions",
  "serde_json",
+ "supports-color",
  "tempfile",
  "tokio",
  "tracing",
@@ -931,7 +933,6 @@ dependencies = [
  "libc",
  "mcp-types",
  "once_cell",
- "owo-colors",
  "path-clean",
  "pathdiff",
  "pretty_assertions",

codex-rs/cli/Cargo.toml

@@ -26,8 +26,11 @@ codex-exec = { workspace = true }
 codex-login = { workspace = true }
 codex-mcp-server = { workspace = true }
 codex-protocol = { workspace = true }
+codex-protocol-ts = { workspace = true }
 codex-tui = { workspace = true }
+owo-colors = { workspace = true }
 serde_json = { workspace = true }
+supports-color = { workspace = true }
 tokio = { workspace = true, features = [
     "io-std",
     "macros",
@@ -37,7 +40,6 @@ tokio = { workspace = true, features = [
 ] }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
-codex-protocol-ts = { workspace = true }
 
 [dev-dependencies]
 assert_cmd = { workspace = true }

codex-rs/cli/src/main.rs

@@ -14,8 +14,11 @@ use codex_cli::login::run_logout;
 use codex_cli::proto;
 use codex_common::CliConfigOverrides;
 use codex_exec::Cli as ExecCli;
+use codex_tui::AppExitInfo;
 use codex_tui::Cli as TuiCli;
+use owo_colors::OwoColorize;
 use std::path::PathBuf;
+use supports_color::Stream;
 
 mod mcp_cmd;
 
@@ -156,6 +159,41 @@ struct GenerateTsCommand {
     prettier: Option<PathBuf>,
 }
 
+fn format_exit_messages(exit_info: AppExitInfo, color_enabled: bool) -> Vec<String> {
+    let AppExitInfo {
+        token_usage,
+        conversation_id,
+    } = exit_info;
+
+    if token_usage.is_zero() {
+        return Vec::new();
+    }
+
+    let mut lines = vec![format!(
+        "{}",
+        codex_core::protocol::FinalOutput::from(token_usage)
+    )];
+
+    if let Some(session_id) = conversation_id {
+        let resume_cmd = format!("codex resume {session_id}");
+        let command = if color_enabled {
+            resume_cmd.cyan().to_string()
+        } else {
+            resume_cmd
+        };
+        lines.push(format!("To continue this session, run {command}."));
+    }
+
+    lines
+}
+
+fn print_exit_messages(exit_info: AppExitInfo) {
+    let color_enabled = supports_color::on(Stream::Stdout).is_some();
+    for line in format_exit_messages(exit_info, color_enabled) {
+        println!("{line}");
+    }
+}
+
 fn main() -> anyhow::Result<()> {
     arg0_dispatch_or_else(|codex_linux_sandbox_exe| async move {
         cli_main(codex_linux_sandbox_exe).await?;
@@ -176,13 +214,8 @@ async fn cli_main(codex_linux_sandbox_exe: Option<PathBuf>) -> anyhow::Result<()
                 &mut interactive.config_overrides,
                 root_config_overrides.clone(),
             );
-            let usage = codex_tui::run_main(interactive, codex_linux_sandbox_exe).await?;
-            if !usage.token_usage.is_zero() {
-                println!(
-                    "{}",
-                    codex_core::protocol::FinalOutput::from(usage.token_usage)
-                );
-            }
+            let exit_info = codex_tui::run_main(interactive, codex_linux_sandbox_exe).await?;
+            print_exit_messages(exit_info);
         }
         Some(Subcommand::Exec(mut exec_cli)) => {
             prepend_config_flags(
@@ -372,6 +405,8 @@ fn print_completion(cmd: CompletionCommand) {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use codex_core::protocol::TokenUsage;
+    use codex_protocol::mcp_protocol::ConversationId;
 
     fn finalize_from_args(args: &[&str]) -> TuiCli {
         let cli = MultitoolCli::try_parse_from(args).expect("parse");
@@ -393,6 +428,52 @@ mod tests {
         finalize_resume_interactive(interactive, root_overrides, session_id, last, resume_cli)
     }
 
+    fn sample_exit_info(conversation: Option<&str>) -> AppExitInfo {
+        let token_usage = TokenUsage {
+            output_tokens: 2,
+            total_tokens: 2,
+            ..Default::default()
+        };
+        AppExitInfo {
+            token_usage,
+            conversation_id: conversation
+                .map(ConversationId::from_string)
+                .map(Result::unwrap),
+        }
+    }
+
+    #[test]
+    fn format_exit_messages_skips_zero_usage() {
+        let exit_info = AppExitInfo {
+            token_usage: TokenUsage::default(),
+            conversation_id: None,
+        };
+        let lines = format_exit_messages(exit_info, false);
+        assert!(lines.is_empty());
+    }
+
+    #[test]
+    fn format_exit_messages_includes_resume_hint_without_color() {
+        let exit_info = sample_exit_info(Some("123e4567-e89b-12d3-a456-426614174000"));
+        let lines = format_exit_messages(exit_info, false);
+        assert_eq!(
+            lines,
+            vec![
+                "Token usage: total=2 input=0 output=2".to_string(),
+                "To continue this session, run codex resume 123e4567-e89b-12d3-a456-426614174000."
+                    .to_string(),
+            ]
+        );
+    }
+
+    #[test]
+    fn format_exit_messages_applies_color_when_enabled() {
+        let exit_info = sample_exit_info(Some("123e4567-e89b-12d3-a456-426614174000"));
+        let lines = format_exit_messages(exit_info, true);
+        assert_eq!(lines.len(), 2);
+        assert!(lines[1].contains("\u{1b}[36m"));
+    }
+
     #[test]
     fn resume_model_flag_applies_when_no_root_flags() {
         let interactive = finalize_from_args(["codex", "resume", "-m", "gpt-5-test"].as_ref());

codex-rs/tui/Cargo.toml

@@ -85,7 +85,6 @@ unicode-segmentation = { workspace = true }
 unicode-width = { workspace = true }
 url = { workspace = true }
 pathdiff = { workspace = true }
-owo-colors = { workspace = true }
 
 [target.'cfg(unix)'.dependencies]
 libc = { workspace = true }

codex-rs/tui/src/main.rs

@@ -3,8 +3,6 @@ use codex_arg0::arg0_dispatch_or_else;
 use codex_common::CliConfigOverrides;
 use codex_tui::Cli;
 use codex_tui::run_main;
-use owo_colors::OwoColorize;
-use supports_color::Stream;
 
 #[derive(Parser, Debug)]
 struct TopCli {
@@ -25,19 +23,8 @@ fn main() -> anyhow::Result<()> {
             .splice(0..0, top_cli.config_overrides.raw_overrides);
         let exit_info = run_main(inner, codex_linux_sandbox_exe).await?;
         let token_usage = exit_info.token_usage;
-        let conversation_id = exit_info.conversation_id;
         if !token_usage.is_zero() {
             println!("{}", codex_core::protocol::FinalOutput::from(token_usage),);
-            if let Some(session_id) = conversation_id {
-                let command = format!("codex resume {session_id}");
-                let prefix = "To continue this session, run ";
-                let suffix = ".";
-                if supports_color::on(Stream::Stdout).is_some() {
-                    println!("{}{}{}", prefix, command.cyan(), suffix);
-                } else {
-                    println!("{prefix}{command}{suffix}");
-                }
-            }
         }
         Ok(())
     })