feat: warn when no local turbo found (#8356)

### Description

Warn a user if they do not have a local turbo install as it might be an
incorrect version for their project.

### Testing Instructions

```
[0 olszewski@Chriss-MacBook-Pro] /tmp/foo $ turbo_dev --version             
2.0.2-canary.1
[0 olszewski@Chriss-MacBook-Pro] /tmp/foo $ pnpm rm turbo
Packages: -2
--
Progress: resolved 1, reused 1, downloaded 0, added 0, done

dependencies:
- turbo 2.0.2-canary.1

Done in 366ms
[0 olszewski@Chriss-MacBook-Pro] /tmp/foo $ turbo_dev --version 
No local turbo found. Using global turbo version 2.0.2-canary.1
2.0.2-canary.1
```
Integration tests show that the disabled env flag works. (Otherwise they
would all have this warning)

---------

Co-authored-by: Anthony Shew <anthony.shew@vercel.com>

crates/turborepo-lib/src/shim.rs

@@ -28,6 +28,8 @@ use turborepo_ui::UI;
 
 use crate::{cli, get_version, spawn_child, tracing::TurboSubscriber};
 
+const TURBO_GLOBAL_WARNING_DISABLED: &str = "TURBO_GLOBAL_WARNING_DISABLED";
+
 #[derive(Debug, Error, Diagnostic)]
 #[error("cannot have multiple `--cwd` flags in command")]
 #[diagnostic(code(turbo::shim::multiple_cwd))]
@@ -595,14 +597,20 @@ fn run_correct_turbo(
             spawn_local_turbo(&repo_state, turbo_state, shim_args)
         }
     } else {
-        try_check_for_updates(&shim_args, get_version());
+        let version = get_version();
+        try_check_for_updates(&shim_args, version);
         // cli::run checks for this env var, rather than an arg, so that we can support
         // calling old versions without passing unknown flags.
         env::set_var(
             cli::INVOCATION_DIR_ENV_VAR,
             shim_args.invocation_dir.as_path(),
         );
         debug!("Running command as global turbo");
+        let should_warn_on_global = env::var(TURBO_GLOBAL_WARNING_DISABLED)
+            .map_or(true, |disable| !matches!(disable.as_str(), "1" | "true"));
+        if should_warn_on_global {
+            eprintln!("No locally installed `turbo` found. Using version: {version}.");
+        }
         Ok(cli::run(Some(repo_state), subscriber, ui)?)
     }
 }

turborepo-tests/helpers/setup.sh

@@ -11,4 +11,5 @@ fi
 
 # disable the first-run telemetry message
 export TURBO_TELEMETRY_MESSAGE_DISABLED=1
+export TURBO_GLOBAL_WARNING_DISABLED=1
 TURBO=${MONOREPO_ROOT_DIR}/target/debug/turbo${EXT}

turborepo-tests/helpers/setup_integration_test.sh

@@ -36,6 +36,7 @@ else
 fi
 
 export TURBO_TELEMETRY_MESSAGE_DISABLED=1
+export TURBO_GLOBAL_WARNING_DISABLED=1
 export TURBO=${MONOREPO_ROOT_DIR}/target/debug/turbo${EXT}
 
 # Undo the set -eo pipefail at the top of this script

turborepo-tests/integration/tests/lockfile-aware-caching/setup.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+export TURBO_GLOBAL_WARNING_DISABLED=1
 SCRIPT_DIR=$(dirname ${BASH_SOURCE[0]})
 TARGET_DIR=$1
 FIXTURE_DIR=$2

turborepo-tests/integration/tests/prune/resolutions.t

@@ -1,6 +1,7 @@
 Setup
   $ . ${TESTDIR}/../../../helpers/setup.sh
   $ . ${TESTDIR}/../../../helpers/copy_fixture.sh $(pwd) berry_resolutions ${TESTDIR}/../../fixtures
+  $ export TURBO_GLOBAL_WARNING_DISABLED=1
 
 Prune a
 We expect to no longer have the non-resolved is-odd descriptor and

turborepo-tests/integration/tests/prune/yarn-pnp.t

@@ -1,6 +1,7 @@
 Setup
   $ . ${TESTDIR}/../../../helpers/setup.sh
   $ . ${TESTDIR}/../../../helpers/copy_fixture.sh $(pwd) berry_resolutions ${TESTDIR}/../../fixtures
+  $ export TURBO_GLOBAL_WARNING_DISABLED=1
 Remove linker override
   $ rm .yarnrc.yml
 Prune the project